diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 6137c669e..324353038 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -204,6 +204,12 @@ set(common_SRCS sha1.cpp base64.cpp ban.cpp + util/serialize.cpp + util/directiontables.cpp + util/numeric.cpp + util/pointedthing.cpp + util/string.cpp + util/timetaker.cpp ) # This gives us the icon diff --git a/src/client.cpp b/src/client.cpp index 06745eab0..a563949d4 100644 --- a/src/client.cpp +++ b/src/client.cpp @@ -40,7 +40,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "clientmap.h" #include "filecache.h" #include "sound.h" -#include "utility_string.h" +#include "util/string.h" #include "hex.h" static std::string getMediaCacheDir() diff --git a/src/constants.h b/src/constants.h index 6faeaf1b8..a65ee6524 100644 --- a/src/constants.h +++ b/src/constants.h @@ -30,19 +30,6 @@ with this program; if not, write to the Free Software Foundation, Inc., #define PI 3.14159 -/* - Build-time stuff -*/ - -// Whether to catch all std::exceptions. -// Assert will be called on such an event. -// In debug mode, leave these for the debugger and don't catch them. -#ifdef NDEBUG - #define CATCH_UNHANDLED_EXCEPTIONS 1 -#else - #define CATCH_UNHANDLED_EXCEPTIONS 0 -#endif - /* Connection */ diff --git a/src/debug.h b/src/debug.h index 8c5714f8c..7a3c60144 100644 --- a/src/debug.h +++ b/src/debug.h @@ -24,10 +24,9 @@ with this program; if not, write to the Free Software Foundation, Inc., #include #include #include -#include "common_irrlicht.h" +#include "irrlichttypes.h" #include "threads.h" #include "gettime.h" -#include "constants.h" #include "exceptions.h" #ifdef _WIN32 @@ -39,6 +38,15 @@ with this program; if not, write to the Free Software Foundation, Inc., #else #endif +// Whether to catch all std::exceptions. +// Assert will be called on such an event. +// In debug mode, leave these for the debugger and don't catch them. +#ifdef NDEBUG + #define CATCH_UNHANDLED_EXCEPTIONS 1 +#else + #define CATCH_UNHANDLED_EXCEPTIONS 0 +#endif + /* Debug output */ diff --git a/src/filecache.cpp b/src/filecache.cpp index 7af21236a..47e346596 100644 --- a/src/filecache.cpp +++ b/src/filecache.cpp @@ -19,15 +19,16 @@ with this program; if not, write to the Free Software Foundation, Inc., */ #include "filecache.h" + #include "clientserver.h" #include "log.h" #include "filesys.h" #include "utility.h" #include "hex.h" #include "sha1.h" - #include #include +#include bool FileCache::loadByPath(const std::string &path, std::ostream &os) { diff --git a/src/main.cpp b/src/main.cpp index 3c9184e2e..3352b866c 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -68,7 +68,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "profiler.h" #include "log.h" #include "mods.h" -#include "utility_string.h" +#include "util/string.h" #include "subgame.h" #include "quicktune.h" diff --git a/src/player.h b/src/player.h index 4ffac7ef0..3b5497721 100644 --- a/src/player.h +++ b/src/player.h @@ -22,6 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "irrlichttypes.h" #include "inventory.h" +#include "constants.h" // BS #define PLAYERNAME_SIZE 20 diff --git a/src/porting.cpp b/src/porting.cpp index b327985d4..fb999abf9 100644 --- a/src/porting.cpp +++ b/src/porting.cpp @@ -28,7 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "debug.h" #include "filesys.h" #include "log.h" -#include "utility_string.h" +#include "util/string.h" #ifdef __APPLE__ #include "CoreFoundation/CoreFoundation.h" diff --git a/src/server.cpp b/src/server.cpp index 98072e854..70e33aaf7 100644 --- a/src/server.cpp +++ b/src/server.cpp @@ -49,7 +49,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "sha1.h" #include "base64.h" #include "tool.h" -#include "utility_string.h" +#include "util/string.h" #include "sound.h" // dummySoundManager #include "event_manager.h" #include "hex.h" diff --git a/src/sound_openal.cpp b/src/sound_openal.cpp index 258a5c195..e95b31b7f 100644 --- a/src/sound_openal.cpp +++ b/src/sound_openal.cpp @@ -38,10 +38,11 @@ with this program; ifnot, write to the Free Software Foundation, Inc., #endif #include #include "log.h" -#include -#include #include "utility.h" // myrand() #include "filesys.h" +#include +#include +#include #define BUFFER_SIZE 30000 diff --git a/src/subgame.cpp b/src/subgame.cpp index 16e7cc8e0..c36189933 100644 --- a/src/subgame.cpp +++ b/src/subgame.cpp @@ -22,7 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "filesys.h" #include "settings.h" #include "log.h" -#include "utility_string.h" +#include "util/string.h" std::string getGameName(const std::string &game_path) { diff --git a/src/test.cpp b/src/test.cpp index 448ba23ce..95b204064 100644 --- a/src/test.cpp +++ b/src/test.cpp @@ -35,7 +35,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "mapsector.h" #include "settings.h" #include "log.h" -#include "utility_string.h" +#include "util/string.h" #include "voxelalgorithms.h" #include "inventory.h" diff --git a/src/tile.cpp b/src/tile.cpp index f0b905c4a..919298fab 100644 --- a/src/tile.cpp +++ b/src/tile.cpp @@ -29,7 +29,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "mapnode.h" // For texture atlas making #include "nodedef.h" // For texture atlas making #include "gamedef.h" -#include "utility_string.h" +#include "util/string.h" /* A cache from texture name to texture path diff --git a/src/util/container.h b/src/util/container.h new file mode 100644 index 000000000..bdf560979 --- /dev/null +++ b/src/util/container.h @@ -0,0 +1,305 @@ +/* +Minetest-c55 +Copyright (C) 2010-2012 celeron55, Perttu Ahola + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef UTIL_CONTAINER_HEADER +#define UTIL_CONTAINER_HEADER + +#include "../irrlichttypes.h" +#include +#include +#include "../porting.h" // For sleep_ms + +/* + Queue with unique values with fast checking of value existence +*/ + +template +class UniqueQueue +{ +public: + + /* + Does nothing if value is already queued. + Return value: + true: value added + false: value already exists + */ + bool push_back(Value value) + { + // Check if already exists + if(m_map.find(value) != NULL) + return false; + + // Add + m_map.insert(value, 0); + m_list.push_back(value); + + return true; + } + + Value pop_front() + { + typename core::list::Iterator i = m_list.begin(); + Value value = *i; + m_map.remove(value); + m_list.erase(i); + return value; + } + + u32 size() + { + assert(m_list.size() == m_map.size()); + return m_list.size(); + } + +private: + core::map m_map; + core::list m_list; +}; + +#if 1 +template +class MutexedMap +{ +public: + MutexedMap() + { + m_mutex.Init(); + assert(m_mutex.IsInitialized()); + } + + void set(const Key &name, const Value &value) + { + JMutexAutoLock lock(m_mutex); + + m_values[name] = value; + } + + bool get(const Key &name, Value *result) + { + JMutexAutoLock lock(m_mutex); + + typename core::map::Node *n; + n = m_values.find(name); + + if(n == NULL) + return false; + + if(result != NULL) + *result = n->getValue(); + + return true; + } + +private: + core::map m_values; + JMutex m_mutex; +}; +#endif + +/* + Generates ids for comparable values. + Id=0 is reserved for "no value". + + Is fast at: + - Returning value by id (very fast) + - Returning id by value + - Generating a new id for a value + + Is not able to: + - Remove an id/value pair (is possible to implement but slow) +*/ +template +class MutexedIdGenerator +{ +public: + MutexedIdGenerator() + { + m_mutex.Init(); + assert(m_mutex.IsInitialized()); + } + + // Returns true if found + bool getValue(u32 id, T &value) + { + if(id == 0) + return false; + JMutexAutoLock lock(m_mutex); + if(m_id_to_value.size() < id) + return false; + value = m_id_to_value[id-1]; + return true; + } + + // If id exists for value, returns the id. + // Otherwise generates an id for the value. + u32 getId(const T &value) + { + JMutexAutoLock lock(m_mutex); + typename core::map::Node *n; + n = m_value_to_id.find(value); + if(n != NULL) + return n->getValue(); + m_id_to_value.push_back(value); + u32 new_id = m_id_to_value.size(); + m_value_to_id.insert(value, new_id); + return new_id; + } + +private: + JMutex m_mutex; + // Values are stored here at id-1 position (id 1 = [0]) + core::array m_id_to_value; + core::map m_value_to_id; +}; + +/* + FIFO queue (well, actually a FILO also) +*/ +template +class Queue +{ +public: + void push_back(T t) + { + m_list.push_back(t); + } + + T pop_front() + { + if(m_list.size() == 0) + throw ItemNotFoundException("Queue: queue is empty"); + + typename core::list::Iterator begin = m_list.begin(); + T t = *begin; + m_list.erase(begin); + return t; + } + T pop_back() + { + if(m_list.size() == 0) + throw ItemNotFoundException("Queue: queue is empty"); + + typename core::list::Iterator last = m_list.getLast(); + T t = *last; + m_list.erase(last); + return t; + } + + u32 size() + { + return m_list.size(); + } + +protected: + core::list m_list; +}; + +/* + Thread-safe FIFO queue (well, actually a FILO also) +*/ + +template +class MutexedQueue +{ +public: + MutexedQueue() + { + m_mutex.Init(); + } + u32 size() + { + JMutexAutoLock lock(m_mutex); + return m_list.size(); + } + void push_back(T t) + { + JMutexAutoLock lock(m_mutex); + m_list.push_back(t); + } + T pop_front(u32 wait_time_max_ms=0) + { + u32 wait_time_ms = 0; + + for(;;) + { + { + JMutexAutoLock lock(m_mutex); + + if(m_list.size() > 0) + { + typename core::list::Iterator begin = m_list.begin(); + T t = *begin; + m_list.erase(begin); + return t; + } + + if(wait_time_ms >= wait_time_max_ms) + throw ItemNotFoundException("MutexedQueue: queue is empty"); + } + + // Wait a while before trying again + sleep_ms(10); + wait_time_ms += 10; + } + } + T pop_back(u32 wait_time_max_ms=0) + { + u32 wait_time_ms = 0; + + for(;;) + { + { + JMutexAutoLock lock(m_mutex); + + if(m_list.size() > 0) + { + typename core::list::Iterator last = m_list.getLast(); + T t = *last; + m_list.erase(last); + return t; + } + + if(wait_time_ms >= wait_time_max_ms) + throw ItemNotFoundException("MutexedQueue: queue is empty"); + } + + // Wait a while before trying again + sleep_ms(10); + wait_time_ms += 10; + } + } + + JMutex & getMutex() + { + return m_mutex; + } + + core::list & getList() + { + return m_list; + } + +protected: + JMutex m_mutex; + core::list m_list; +}; + +#endif + diff --git a/src/util/directiontables.cpp b/src/util/directiontables.cpp new file mode 100644 index 000000000..a5d2faa7c --- /dev/null +++ b/src/util/directiontables.cpp @@ -0,0 +1,101 @@ +/* +Minetest-c55 +Copyright (C) 2010-2012 celeron55, Perttu Ahola + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#include "directiontables.h" + +const v3s16 g_6dirs[6] = +{ + // +right, +top, +back + v3s16( 0, 0, 1), // back + v3s16( 0, 1, 0), // top + v3s16( 1, 0, 0), // right + v3s16( 0, 0,-1), // front + v3s16( 0,-1, 0), // bottom + v3s16(-1, 0, 0) // left +}; + +const v3s16 g_26dirs[26] = +{ + // +right, +top, +back + v3s16( 0, 0, 1), // back + v3s16( 0, 1, 0), // top + v3s16( 1, 0, 0), // right + v3s16( 0, 0,-1), // front + v3s16( 0,-1, 0), // bottom + v3s16(-1, 0, 0), // left + // 6 + v3s16(-1, 1, 0), // top left + v3s16( 1, 1, 0), // top right + v3s16( 0, 1, 1), // top back + v3s16( 0, 1,-1), // top front + v3s16(-1, 0, 1), // back left + v3s16( 1, 0, 1), // back right + v3s16(-1, 0,-1), // front left + v3s16( 1, 0,-1), // front right + v3s16(-1,-1, 0), // bottom left + v3s16( 1,-1, 0), // bottom right + v3s16( 0,-1, 1), // bottom back + v3s16( 0,-1,-1), // bottom front + // 18 + v3s16(-1, 1, 1), // top back-left + v3s16( 1, 1, 1), // top back-right + v3s16(-1, 1,-1), // top front-left + v3s16( 1, 1,-1), // top front-right + v3s16(-1,-1, 1), // bottom back-left + v3s16( 1,-1, 1), // bottom back-right + v3s16(-1,-1,-1), // bottom front-left + v3s16( 1,-1,-1), // bottom front-right + // 26 +}; + +const v3s16 g_27dirs[27] = +{ + // +right, +top, +back + v3s16( 0, 0, 1), // back + v3s16( 0, 1, 0), // top + v3s16( 1, 0, 0), // right + v3s16( 0, 0,-1), // front + v3s16( 0,-1, 0), // bottom + v3s16(-1, 0, 0), // left + // 6 + v3s16(-1, 1, 0), // top left + v3s16( 1, 1, 0), // top right + v3s16( 0, 1, 1), // top back + v3s16( 0, 1,-1), // top front + v3s16(-1, 0, 1), // back left + v3s16( 1, 0, 1), // back right + v3s16(-1, 0,-1), // front left + v3s16( 1, 0,-1), // front right + v3s16(-1,-1, 0), // bottom left + v3s16( 1,-1, 0), // bottom right + v3s16( 0,-1, 1), // bottom back + v3s16( 0,-1,-1), // bottom front + // 18 + v3s16(-1, 1, 1), // top back-left + v3s16( 1, 1, 1), // top back-right + v3s16(-1, 1,-1), // top front-left + v3s16( 1, 1,-1), // top front-right + v3s16(-1,-1, 1), // bottom back-left + v3s16( 1,-1, 1), // bottom back-right + v3s16(-1,-1,-1), // bottom front-left + v3s16( 1,-1,-1), // bottom front-right + // 26 + v3s16(0,0,0), +}; + diff --git a/src/util/directiontables.h b/src/util/directiontables.h new file mode 100644 index 000000000..c02b3d124 --- /dev/null +++ b/src/util/directiontables.h @@ -0,0 +1,33 @@ +/* +Minetest-c55 +Copyright (C) 2010-2012 celeron55, Perttu Ahola + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef UTIL_DIRECTIONTABLES_HEADER +#define UTIL_DIRECTIONTABLES_HEADER + +#include "../irrlichttypes.h" + +extern const v3s16 g_6dirs[6]; + +extern const v3s16 g_26dirs[26]; + +// 26th is (0,0,0) +extern const v3s16 g_27dirs[27]; + +#endif + diff --git a/src/util/numeric.cpp b/src/util/numeric.cpp new file mode 100644 index 000000000..d082cdb76 --- /dev/null +++ b/src/util/numeric.cpp @@ -0,0 +1,202 @@ +/* +Minetest-c55 +Copyright (C) 2010-2012 celeron55, Perttu Ahola + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#include "numeric.h" + +#include "log.h" +#include "constants.h" // BS, MAP_BLOCKSIZE +#include + +// Calculate the borders of a "d-radius" cube +void getFacePositions(core::list &list, u16 d) +{ + if(d == 0) + { + list.push_back(v3s16(0,0,0)); + return; + } + if(d == 1) + { + /* + This is an optimized sequence of coordinates. + */ + list.push_back(v3s16( 0, 1, 0)); // top + list.push_back(v3s16( 0, 0, 1)); // back + list.push_back(v3s16(-1, 0, 0)); // left + list.push_back(v3s16( 1, 0, 0)); // right + list.push_back(v3s16( 0, 0,-1)); // front + list.push_back(v3s16( 0,-1, 0)); // bottom + // 6 + list.push_back(v3s16(-1, 0, 1)); // back left + list.push_back(v3s16( 1, 0, 1)); // back right + list.push_back(v3s16(-1, 0,-1)); // front left + list.push_back(v3s16( 1, 0,-1)); // front right + list.push_back(v3s16(-1,-1, 0)); // bottom left + list.push_back(v3s16( 1,-1, 0)); // bottom right + list.push_back(v3s16( 0,-1, 1)); // bottom back + list.push_back(v3s16( 0,-1,-1)); // bottom front + list.push_back(v3s16(-1, 1, 0)); // top left + list.push_back(v3s16( 1, 1, 0)); // top right + list.push_back(v3s16( 0, 1, 1)); // top back + list.push_back(v3s16( 0, 1,-1)); // top front + // 18 + list.push_back(v3s16(-1, 1, 1)); // top back-left + list.push_back(v3s16( 1, 1, 1)); // top back-right + list.push_back(v3s16(-1, 1,-1)); // top front-left + list.push_back(v3s16( 1, 1,-1)); // top front-right + list.push_back(v3s16(-1,-1, 1)); // bottom back-left + list.push_back(v3s16( 1,-1, 1)); // bottom back-right + list.push_back(v3s16(-1,-1,-1)); // bottom front-left + list.push_back(v3s16( 1,-1,-1)); // bottom front-right + // 26 + return; + } + + // Take blocks in all sides, starting from y=0 and going +-y + for(s16 y=0; y<=d-1; y++) + { + // Left and right side, including borders + for(s16 z=-d; z<=d; z++) + { + list.push_back(v3s16(d,y,z)); + list.push_back(v3s16(-d,y,z)); + if(y != 0) + { + list.push_back(v3s16(d,-y,z)); + list.push_back(v3s16(-d,-y,z)); + } + } + // Back and front side, excluding borders + for(s16 x=-d+1; x<=d-1; x++) + { + list.push_back(v3s16(x,y,d)); + list.push_back(v3s16(x,y,-d)); + if(y != 0) + { + list.push_back(v3s16(x,-y,d)); + list.push_back(v3s16(x,-y,-d)); + } + } + } + + // Take the bottom and top face with borders + // -d MYRAND_MAX) + { + errorstream<<"WARNING: myrand_range: max-min > MYRAND_MAX"< max) + { + errorstream<<"WARNING: myrand_range: min > max"< range) + return false; + + // Maximum radius of a block + f32 block_max_radius = 0.5*1.44*1.44*MAP_BLOCKSIZE*BS; + + // If block is (nearly) touching the camera, don't + // bother validating further (that is, render it anyway) + if(d < block_max_radius) + return true; + + // Cosine of the angle between the camera direction + // and the block direction (camera_dir is an unit vector) + f32 cosangle = dforward / d; + + // Compensate for the size of the block + // (as the block has to be shown even if it's a bit off FOV) + // This is an estimate, plus an arbitary factor + cosangle += block_max_radius / d * 0.5; + + // If block is not in the field of view, skip it + if(cosangle < cos(camera_fov / 2)) + return false; + + return true; +} + diff --git a/src/util/numeric.h b/src/util/numeric.h new file mode 100644 index 000000000..0ce21b7e3 --- /dev/null +++ b/src/util/numeric.h @@ -0,0 +1,331 @@ +/* +Minetest-c55 +Copyright (C) 2010-2012 celeron55, Perttu Ahola + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef UTIL_NUMERIC_HEADER +#define UTIL_NUMERIC_HEADER + +#include "../irrlichttypes.h" + +// Calculate the borders of a "d-radius" cube +void getFacePositions(core::list &list, u16 d); + +class IndentationRaiser +{ +public: + IndentationRaiser(u16 *indentation) + { + m_indentation = indentation; + (*m_indentation)++; + } + ~IndentationRaiser() + { + (*m_indentation)--; + } +private: + u16 *m_indentation; +}; + +inline s16 getContainerPos(s16 p, s16 d) +{ + return (p>=0 ? p : p-d+1) / d; +} + +inline v2s16 getContainerPos(v2s16 p, s16 d) +{ + return v2s16( + getContainerPos(p.X, d), + getContainerPos(p.Y, d) + ); +} + +inline v3s16 getContainerPos(v3s16 p, s16 d) +{ + return v3s16( + getContainerPos(p.X, d), + getContainerPos(p.Y, d), + getContainerPos(p.Z, d) + ); +} + +inline v2s16 getContainerPos(v2s16 p, v2s16 d) +{ + return v2s16( + getContainerPos(p.X, d.X), + getContainerPos(p.Y, d.Y) + ); +} + +inline v3s16 getContainerPos(v3s16 p, v3s16 d) +{ + return v3s16( + getContainerPos(p.X, d.X), + getContainerPos(p.Y, d.Y), + getContainerPos(p.Z, d.Z) + ); +} + +inline bool isInArea(v3s16 p, s16 d) +{ + return ( + p.X >= 0 && p.X < d && + p.Y >= 0 && p.Y < d && + p.Z >= 0 && p.Z < d + ); +} + +inline bool isInArea(v2s16 p, s16 d) +{ + return ( + p.X >= 0 && p.X < d && + p.Y >= 0 && p.Y < d + ); +} + +inline bool isInArea(v3s16 p, v3s16 d) +{ + return ( + p.X >= 0 && p.X < d.X && + p.Y >= 0 && p.Y < d.Y && + p.Z >= 0 && p.Z < d.Z + ); +} + +inline s16 rangelim(s16 i, s16 max) +{ + if(i < 0) + return 0; + if(i > max) + return max; + return i; +} + +#define rangelim(d, min, max) ((d) < (min) ? (min) : ((d)>(max)?(max):(d))) + +inline v3s16 arealim(v3s16 p, s16 d) +{ + if(p.X < 0) + p.X = 0; + if(p.Y < 0) + p.Y = 0; + if(p.Z < 0) + p.Z = 0; + if(p.X > d-1) + p.X = d-1; + if(p.Y > d-1) + p.Y = d-1; + if(p.Z > d-1) + p.Z = d-1; + return p; +} + + +/* + See test.cpp for example cases. + wraps degrees to the range of -360...360 + NOTE: Wrapping to 0...360 is not used because pitch needs negative values. +*/ +inline float wrapDegrees(float f) +{ + // Take examples of f=10, f=720.5, f=-0.5, f=-360.5 + // This results in + // 10, 720, -1, -361 + int i = floor(f); + // 0, 2, 0, -1 + int l = i / 360; + // NOTE: This would be used for wrapping to 0...360 + // 0, 2, -1, -2 + /*if(i < 0) + l -= 1;*/ + // 0, 720, 0, -360 + int k = l * 360; + // 10, 0.5, -0.5, -0.5 + f -= float(k); + return f; +} + +/* Wrap to 0...360 */ +inline float wrapDegrees_0_360(float f) +{ + // Take examples of f=10, f=720.5, f=-0.5, f=-360.5 + // This results in + // 10, 720, -1, -361 + int i = floor(f); + // 0, 2, 0, -1 + int l = i / 360; + // Wrap to 0...360 + // 0, 2, -1, -2 + if(i < 0) + l -= 1; + // 0, 720, 0, -360 + int k = l * 360; + // 10, 0.5, -0.5, -0.5 + f -= float(k); + return f; +} + +/* Wrap to -180...180 */ +inline float wrapDegrees_180(float f) +{ + f += 180; + f = wrapDegrees_0_360(f); + f -= 180; + return f; +} + +/* + Pseudo-random (VC++ rand() sucks) +*/ +int myrand(void); +void mysrand(unsigned seed); +#define MYRAND_MAX 32767 + +int myrand_range(int min, int max); + +/* + Miscellaneous functions +*/ + +bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir, + f32 camera_fov, f32 range, f32 *distance_ptr=NULL); + +/* + Some helper stuff +*/ +#define MYMIN(a,b) ((a)<(b)?(a):(b)) +#define MYMAX(a,b) ((a)>(b)?(a):(b)) + +/* + Returns nearest 32-bit integer for given floating point number. + and in VC++ don't provide round(). +*/ +inline s32 myround(f32 f) +{ + return floor(f + 0.5); +} + +/* + Returns integer position of node in given floating point position +*/ +inline v3s16 floatToInt(v3f p, f32 d) +{ + v3s16 p2( + (p.X + (p.X>0 ? d/2 : -d/2))/d, + (p.Y + (p.Y>0 ? d/2 : -d/2))/d, + (p.Z + (p.Z>0 ? d/2 : -d/2))/d); + return p2; +} + +/* + Returns floating point position of node in given integer position +*/ +inline v3f intToFloat(v3s16 p, f32 d) +{ + v3f p2( + (f32)p.X * d, + (f32)p.Y * d, + (f32)p.Z * d + ); + return p2; +} + +// Random helper. Usually d=BS +inline core::aabbox3d getNodeBox(v3s16 p, float d) +{ + return core::aabbox3d( + (float)p.X * d - 0.5*d, + (float)p.Y * d - 0.5*d, + (float)p.Z * d - 0.5*d, + (float)p.X * d + 0.5*d, + (float)p.Y * d + 0.5*d, + (float)p.Z * d + 0.5*d + ); +} + +class IntervalLimiter +{ +public: + IntervalLimiter(): + m_accumulator(0) + { + } + /* + dtime: time from last call to this method + wanted_interval: interval wanted + return value: + true: action should be skipped + false: action should be done + */ + bool step(float dtime, float wanted_interval) + { + m_accumulator += dtime; + if(m_accumulator < wanted_interval) + return false; + m_accumulator -= wanted_interval; + return true; + } +protected: + float m_accumulator; +}; + +/* + Splits a list into "pages". For example, the list [1,2,3,4,5] split + into two pages would be [1,2,3],[4,5]. This function computes the + minimum and maximum indices of a single page. + + length: Length of the list that should be split + page: Page number, 1 <= page <= pagecount + pagecount: The number of pages, >= 1 + minindex: Receives the minimum index (inclusive). + maxindex: Receives the maximum index (exclusive). + + Ensures 0 <= minindex <= maxindex <= length. +*/ +inline void paging(u32 length, u32 page, u32 pagecount, u32 &minindex, u32 &maxindex) +{ + if(length < 1 || pagecount < 1 || page < 1 || page > pagecount) + { + // Special cases or invalid parameters + minindex = maxindex = 0; + } + else if(pagecount <= length) + { + // Less pages than entries in the list: + // Each page contains at least one entry + minindex = (length * (page-1) + (pagecount-1)) / pagecount; + maxindex = (length * page + (pagecount-1)) / pagecount; + } + else + { + // More pages than entries in the list: + // Make sure the empty pages are at the end + if(page < length) + { + minindex = page-1; + maxindex = page; + } + else + { + minindex = 0; + maxindex = 0; + } + } +} + +#endif + diff --git a/src/util/pointedthing.cpp b/src/util/pointedthing.cpp new file mode 100644 index 000000000..d1be2d6b6 --- /dev/null +++ b/src/util/pointedthing.cpp @@ -0,0 +1,125 @@ +/* +Minetest-c55 +Copyright (C) 2010-2012 celeron55, Perttu Ahola + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#include "pointedthing.h" + +#include "serialize.h" +#include + +PointedThing::PointedThing(): + type(POINTEDTHING_NOTHING), + node_undersurface(0,0,0), + node_abovesurface(0,0,0), + object_id(-1) +{} + +std::string PointedThing::dump() const +{ + std::ostringstream os(std::ios::binary); + if(type == POINTEDTHING_NOTHING) + { + os<<"[nothing]"; + } + else if(type == POINTEDTHING_NODE) + { + const v3s16 &u = node_undersurface; + const v3s16 &a = node_abovesurface; + os<<"[node under="< + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef UTIL_POINTEDTHING_HEADER +#define UTIL_POINTEDTHING_HEADER + +#include "../irrlichttypes.h" +#include +#include + +enum PointedThingType +{ + POINTEDTHING_NOTHING, + POINTEDTHING_NODE, + POINTEDTHING_OBJECT +}; + +struct PointedThing +{ + PointedThingType type; + v3s16 node_undersurface; + v3s16 node_abovesurface; + s16 object_id; + + PointedThing(); + std::string dump() const; + void serialize(std::ostream &os) const; + void deSerialize(std::istream &is); + bool operator==(const PointedThing &pt2) const; + bool operator!=(const PointedThing &pt2) const; +}; + +#endif + diff --git a/src/util/pointer.h b/src/util/pointer.h new file mode 100644 index 000000000..02f11c2ea --- /dev/null +++ b/src/util/pointer.h @@ -0,0 +1,298 @@ +/* +Minetest-c55 +Copyright (C) 2010-2012 celeron55, Perttu Ahola + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef UTIL_POINTER_HEADER +#define UTIL_POINTER_HEADER + +#include "../irrlichttypes.h" +#include "../debug.h" // For assert() + +template +class SharedPtr +{ +public: + SharedPtr(T *t=NULL) + { + refcount = new int; + *refcount = 1; + ptr = t; + } + SharedPtr(SharedPtr &t) + { + //*this = t; + drop(); + refcount = t.refcount; + (*refcount)++; + ptr = t.ptr; + } + ~SharedPtr() + { + drop(); + } + SharedPtr & operator=(T *t) + { + drop(); + refcount = new int; + *refcount = 1; + ptr = t; + return *this; + } + SharedPtr & operator=(SharedPtr &t) + { + drop(); + refcount = t.refcount; + (*refcount)++; + ptr = t.ptr; + return *this; + } + T* operator->() + { + return ptr; + } + T & operator*() + { + return *ptr; + } + bool operator!=(T *t) + { + return ptr != t; + } + bool operator==(T *t) + { + return ptr == t; + } + T & operator[](unsigned int i) + { + return ptr[i]; + } +private: + void drop() + { + assert((*refcount) > 0); + (*refcount)--; + if(*refcount == 0) + { + delete refcount; + if(ptr != NULL) + delete ptr; + } + } + T *ptr; + int *refcount; +}; + +template +class Buffer +{ +public: + Buffer() + { + m_size = 0; + data = NULL; + } + Buffer(unsigned int size) + { + m_size = size; + if(size != 0) + data = new T[size]; + else + data = NULL; + } + Buffer(const Buffer &buffer) + { + m_size = buffer.m_size; + if(m_size != 0) + { + data = new T[buffer.m_size]; + memcpy(data, buffer.data, buffer.m_size); + } + else + data = NULL; + } + Buffer(const T *t, unsigned int size) + { + m_size = size; + if(size != 0) + { + data = new T[size]; + memcpy(data, t, size); + } + else + data = NULL; + } + ~Buffer() + { + drop(); + } + Buffer& operator=(const Buffer &buffer) + { + if(this == &buffer) + return *this; + drop(); + m_size = buffer.m_size; + if(m_size != 0) + { + data = new T[buffer.m_size]; + memcpy(data, buffer.data, buffer.m_size); + } + else + data = NULL; + return *this; + } + T & operator[](unsigned int i) const + { + return data[i]; + } + T * operator*() const + { + return data; + } + unsigned int getSize() const + { + return m_size; + } +private: + void drop() + { + if(data) + delete[] data; + } + T *data; + unsigned int m_size; +}; + +template +class SharedBuffer +{ +public: + SharedBuffer() + { + m_size = 0; + data = NULL; + refcount = new unsigned int; + (*refcount) = 1; + } + SharedBuffer(unsigned int size) + { + m_size = size; + if(m_size != 0) + data = new T[m_size]; + else + data = NULL; + refcount = new unsigned int; + (*refcount) = 1; + } + SharedBuffer(const SharedBuffer &buffer) + { + //std::cout<<"SharedBuffer(const SharedBuffer &buffer)"< &buffer) + { + m_size = buffer.getSize(); + if(m_size != 0) + { + data = new T[m_size]; + memcpy(data, *buffer, buffer.getSize()); + } + else + data = NULL; + refcount = new unsigned int; + (*refcount) = 1; + } + ~SharedBuffer() + { + drop(); + } + T & operator[](unsigned int i) const + { + //assert(i < m_size) + return data[i]; + } + T * operator*() const + { + return data; + } + unsigned int getSize() const + { + return m_size; + } + operator Buffer() const + { + return Buffer(data, m_size); + } +private: + void drop() + { + assert((*refcount) > 0); + (*refcount)--; + if(*refcount == 0) + { + if(data) + delete[] data; + delete refcount; + } + } + T *data; + unsigned int m_size; + unsigned int *refcount; +}; + +inline SharedBuffer SharedBufferFromString(const char *string) +{ + SharedBuffer b((u8*)string, strlen(string)+1); + return b; +} + +#endif + diff --git a/src/util/serialize.cpp b/src/util/serialize.cpp new file mode 100644 index 000000000..16825b677 --- /dev/null +++ b/src/util/serialize.cpp @@ -0,0 +1,119 @@ +/* +Minetest-c55 +Copyright (C) 2010-2012 celeron55, Perttu Ahola + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#include "serialize.h" + +#include +#include + +// Creates a string encoded in JSON format (almost equivalent to a C string literal) +std::string serializeJsonString(const std::string &plain) +{ + std::ostringstream os(std::ios::binary); + os<<"\""; + for(size_t i = 0; i < plain.size(); i++) + { + char c = plain[i]; + switch(c) + { + case '"': os<<"\\\""; break; + case '\\': os<<"\\\\"; break; + case '/': os<<"\\/"; break; + case '\b': os<<"\\b"; break; + case '\f': os<<"\\f"; break; + case '\n': os<<"\\n"; break; + case '\r': os<<"\\r"; break; + case '\t': os<<"\\t"; break; + default: + { + if(c >= 32 && c <= 126) + { + os<> c; + if(c != '"') + throw SerializationError("JSON string must start with doublequote"); + + // Parse characters + for(;;) + { + c = is.get(); + if(is.eof()) + throw SerializationError("JSON string ended prematurely"); + if(c == '"') + { + return os.str(); + } + else if(c == '\\') + { + c2 = is.get(); + if(is.eof()) + throw SerializationError("JSON string ended prematurely"); + switch(c2) + { + default: os<> std::hex >> hexnumber; + os<<((char)hexnumber); + break; + } + } + } + else + { + os< + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef UTIL_SERIALIZE_HEADER +#define UTIL_SERIALIZE_HEADER + +#include "../irrlichttypes.h" +#include +#include +#include "../exceptions.h" +#include "pointer.h" + +inline void writeU64(u8 *data, u64 i) +{ + data[0] = ((i>>56)&0xff); + data[1] = ((i>>48)&0xff); + data[2] = ((i>>40)&0xff); + data[3] = ((i>>32)&0xff); + data[4] = ((i>>24)&0xff); + data[5] = ((i>>16)&0xff); + data[6] = ((i>> 8)&0xff); + data[7] = ((i>> 0)&0xff); +} + +inline void writeU32(u8 *data, u32 i) +{ + data[0] = ((i>>24)&0xff); + data[1] = ((i>>16)&0xff); + data[2] = ((i>> 8)&0xff); + data[3] = ((i>> 0)&0xff); +} + +inline void writeU16(u8 *data, u16 i) +{ + data[0] = ((i>> 8)&0xff); + data[1] = ((i>> 0)&0xff); +} + +inline void writeU8(u8 *data, u8 i) +{ + data[0] = ((i>> 0)&0xff); +} + +inline u64 readU64(u8 *data) +{ + return ((u64)data[0]<<56) | ((u64)data[1]<<48) + | ((u64)data[2]<<40) | ((u64)data[3]<<32) + | ((u64)data[4]<<24) | ((u64)data[5]<<16) + | ((u64)data[6]<<8) | ((u64)data[7]<<0); +} + +inline u32 readU32(u8 *data) +{ + return (data[0]<<24) | (data[1]<<16) | (data[2]<<8) | (data[3]<<0); +} + +inline u16 readU16(u8 *data) +{ + return (data[0]<<8) | (data[1]<<0); +} + +inline u8 readU8(u8 *data) +{ + return (data[0]<<0); +} + +inline void writeS32(u8 *data, s32 i){ + writeU32(data, (u32)i); +} +inline s32 readS32(u8 *data){ + return (s32)readU32(data); +} + +inline void writeS16(u8 *data, s16 i){ + writeU16(data, (u16)i); +} +inline s16 readS16(u8 *data){ + return (s16)readU16(data); +} + +inline void writeS8(u8 *data, s8 i){ + writeU8(data, (u8)i); +} +inline s8 readS8(u8 *data){ + return (s8)readU8(data); +} + +inline void writeF1000(u8 *data, f32 i){ + writeS32(data, i*1000); +} +inline f32 readF1000(u8 *data){ + return (f32)readS32(data)/1000.; +} + +inline void writeV3S32(u8 *data, v3s32 p) +{ + writeS32(&data[0], p.X); + writeS32(&data[4], p.Y); + writeS32(&data[8], p.Z); +} +inline v3s32 readV3S32(u8 *data) +{ + v3s32 p; + p.X = readS32(&data[0]); + p.Y = readS32(&data[4]); + p.Z = readS32(&data[8]); + return p; +} + +inline void writeV3F1000(u8 *data, v3f p) +{ + writeF1000(&data[0], p.X); + writeF1000(&data[4], p.Y); + writeF1000(&data[8], p.Z); +} +inline v3f readV3F1000(u8 *data) +{ + v3f p; + p.X = (float)readF1000(&data[0]); + p.Y = (float)readF1000(&data[4]); + p.Z = (float)readF1000(&data[8]); + return p; +} + +inline void writeV2F1000(u8 *data, v2f p) +{ + writeF1000(&data[0], p.X); + writeF1000(&data[4], p.Y); +} +inline v2f readV2F1000(u8 *data) +{ + v2f p; + p.X = (float)readF1000(&data[0]); + p.Y = (float)readF1000(&data[4]); + return p; +} + +inline void writeV2S16(u8 *data, v2s16 p) +{ + writeS16(&data[0], p.X); + writeS16(&data[2], p.Y); +} + +inline v2s16 readV2S16(u8 *data) +{ + v2s16 p; + p.X = readS16(&data[0]); + p.Y = readS16(&data[2]); + return p; +} + +inline void writeV2S32(u8 *data, v2s32 p) +{ + writeS32(&data[0], p.X); + writeS32(&data[2], p.Y); +} + +inline v2s32 readV2S32(u8 *data) +{ + v2s32 p; + p.X = readS32(&data[0]); + p.Y = readS32(&data[2]); + return p; +} + +inline void writeV3S16(u8 *data, v3s16 p) +{ + writeS16(&data[0], p.X); + writeS16(&data[2], p.Y); + writeS16(&data[4], p.Z); +} + +inline v3s16 readV3S16(u8 *data) +{ + v3s16 p; + p.X = readS16(&data[0]); + p.Y = readS16(&data[2]); + p.Z = readS16(&data[4]); + return p; +} + +/* + The above stuff directly interfaced to iostream +*/ + +inline void writeU8(std::ostream &os, u8 p) +{ + char buf[1] = {0}; + writeU8((u8*)buf, p); + os.write(buf, 1); +} +inline u8 readU8(std::istream &is) +{ + char buf[1] = {0}; + is.read(buf, 1); + return readU8((u8*)buf); +} + +inline void writeU16(std::ostream &os, u16 p) +{ + char buf[2] = {0}; + writeU16((u8*)buf, p); + os.write(buf, 2); +} +inline u16 readU16(std::istream &is) +{ + char buf[2] = {0}; + is.read(buf, 2); + return readU16((u8*)buf); +} + +inline void writeU32(std::ostream &os, u32 p) +{ + char buf[4] = {0}; + writeU32((u8*)buf, p); + os.write(buf, 4); +} +inline u32 readU32(std::istream &is) +{ + char buf[4] = {0}; + is.read(buf, 4); + return readU32((u8*)buf); +} + +inline void writeS32(std::ostream &os, s32 p) +{ + char buf[4] = {0}; + writeS32((u8*)buf, p); + os.write(buf, 4); +} +inline s32 readS32(std::istream &is) +{ + char buf[4] = {0}; + is.read(buf, 4); + return readS32((u8*)buf); +} + +inline void writeS16(std::ostream &os, s16 p) +{ + char buf[2] = {0}; + writeS16((u8*)buf, p); + os.write(buf, 2); +} +inline s16 readS16(std::istream &is) +{ + char buf[2] = {0}; + is.read(buf, 2); + return readS16((u8*)buf); +} + +inline void writeS8(std::ostream &os, s8 p) +{ + char buf[1] = {0}; + writeS8((u8*)buf, p); + os.write(buf, 1); +} +inline s8 readS8(std::istream &is) +{ + char buf[1] = {0}; + is.read(buf, 1); + return readS8((u8*)buf); +} + +inline void writeF1000(std::ostream &os, f32 p) +{ + char buf[4] = {0}; + writeF1000((u8*)buf, p); + os.write(buf, 4); +} +inline f32 readF1000(std::istream &is) +{ + char buf[4] = {0}; + is.read(buf, 4); + return readF1000((u8*)buf); +} + +inline void writeV3F1000(std::ostream &os, v3f p) +{ + char buf[12]; + writeV3F1000((u8*)buf, p); + os.write(buf, 12); +} +inline v3f readV3F1000(std::istream &is) +{ + char buf[12]; + is.read(buf, 12); + return readV3F1000((u8*)buf); +} + +inline void writeV2F1000(std::ostream &os, v2f p) +{ + char buf[8] = {0}; + writeV2F1000((u8*)buf, p); + os.write(buf, 8); +} +inline v2f readV2F1000(std::istream &is) +{ + char buf[8] = {0}; + is.read(buf, 8); + return readV2F1000((u8*)buf); +} + +inline void writeV2S16(std::ostream &os, v2s16 p) +{ + char buf[4] = {0}; + writeV2S16((u8*)buf, p); + os.write(buf, 4); +} +inline v2s16 readV2S16(std::istream &is) +{ + char buf[4] = {0}; + is.read(buf, 4); + return readV2S16((u8*)buf); +} + +inline void writeV3S16(std::ostream &os, v3s16 p) +{ + char buf[6] = {0}; + writeV3S16((u8*)buf, p); + os.write(buf, 6); +} +inline v3s16 readV3S16(std::istream &is) +{ + char buf[6] = {0}; + is.read(buf, 6); + return readV3S16((u8*)buf); +} + +/* + More serialization stuff +*/ + +// Creates a string with the length as the first two bytes +inline std::string serializeString(const std::string &plain) +{ + //assert(plain.size() <= 65535); + if(plain.size() > 65535) + throw SerializationError("String too long for serializeString"); + char buf[2]; + writeU16((u8*)&buf[0], plain.size()); + std::string s; + s.append(buf, 2); + s.append(plain); + return s; +} + +// Creates a string with the length as the first two bytes from wide string +inline std::string serializeWideString(const std::wstring &plain) +{ + //assert(plain.size() <= 65535); + if(plain.size() > 65535) + throw SerializationError("String too long for serializeString"); + char buf[2]; + writeU16((u8*)buf, plain.size()); + std::string s; + s.append(buf, 2); + for(u32 i=0; i buf2(s_size); + is.read(&buf2[0], s_size); + std::string s; + s.reserve(s_size); + s.append(&buf2[0], s_size); + return s; +} + +// Reads a wide string with the length as the first two bytes +inline std::wstring deSerializeWideString(std::istream &is) +{ + char buf[2]; + is.read(buf, 2); + if(is.gcount() != 2) + throw SerializationError("deSerializeString: size not read"); + u16 s_size = readU16((u8*)buf); + if(s_size == 0) + return L""; + std::wstring s; + s.reserve(s_size); + for(u32 i=0; i buf2(s_size); + is.read(&buf2[0], s_size); + std::string s; + s.reserve(s_size); + s.append(&buf2[0], s_size); + return s; +} + +// Creates a string encoded in JSON format (almost equivalent to a C string literal) +std::string serializeJsonString(const std::string &plain); + +// Reads a string encoded in JSON format +std::string deSerializeJsonString(std::istream &is); + +#endif + diff --git a/src/utility_string.h b/src/util/string.cpp similarity index 52% rename from src/utility_string.h rename to src/util/string.cpp index 903cd3dcb..ee4df849e 100644 --- a/src/utility_string.h +++ b/src/util/string.cpp @@ -1,6 +1,6 @@ /* Minetest-c55 -Copyright (C) 2010 celeron55, Perttu Ahola +Copyright (C) 2010-2012 celeron55, Perttu Ahola This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by @@ -17,34 +17,27 @@ with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#ifndef UTILITY_STRING_HEADER -#define UTILITY_STRING_HEADER +#include "string.h" -// Note: Some stuff could be moved to here from utility.h +#include "sha1.h" +#include "base64.h" -#include - -static inline std::string padStringRight(std::string s, size_t len) +// Get an sha-1 hash of the player's name combined with +// the password entered. That's what the server uses as +// their password. (Exception : if the password field is +// blank, we send a blank password - this is for backwards +// compatibility with password-less players). +std::string translatePassword(std::string playername, std::wstring password) { - if(len > s.size()) - s.insert(s.end(), len - s.size(), ' '); - return s; + if(password.length() == 0) + return ""; + + std::string slt = playername + wide_to_narrow(password); + SHA1 sha1; + sha1.addBytes(slt.c_str(), slt.length()); + unsigned char *digest = sha1.getDigest(); + std::string pwd = base64_encode(digest, 20); + free(digest); + return pwd; } -// ends: NULL- or ""-terminated array of strings -// Returns "" if no end could be removed. -static inline std::string removeStringEnd(const std::string &s, const char *ends[]) -{ - const char **p = ends; - for(; (*p) && (*p)[0] != '\0'; p++){ - std::string end = *p; - if(s.size() < end.size()) - continue; - if(s.substr(s.size()-end.size(), end.size()) == end) - return s.substr(0, s.size() - end.size()); - } - return ""; -} - -#endif - diff --git a/src/util/string.h b/src/util/string.h new file mode 100644 index 000000000..97b07f2ff --- /dev/null +++ b/src/util/string.h @@ -0,0 +1,264 @@ +/* +Minetest-c55 +Copyright (C) 2010-2012 celeron55, Perttu Ahola + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef UTIL_STRING_HEADER +#define UTIL_STRING_HEADER + +#include "../irrlichttypes.h" +#include "../strfnd.h" // For trim() +#include "pointer.h" +#include +#include +#include +#include + +static inline std::string padStringRight(std::string s, size_t len) +{ + if(len > s.size()) + s.insert(s.end(), len - s.size(), ' '); + return s; +} + +// ends: NULL- or ""-terminated array of strings +// Returns "" if no end could be removed. +static inline std::string removeStringEnd(const std::string &s, const char *ends[]) +{ + const char **p = ends; + for(; (*p) && (*p)[0] != '\0'; p++){ + std::string end = *p; + if(s.size() < end.size()) + continue; + if(s.substr(s.size()-end.size(), end.size()) == end) + return s.substr(0, s.size() - end.size()); + } + return ""; +} + +// Tests if two strings are equal, optionally case insensitive +inline bool str_equal(const std::wstring& s1, const std::wstring& s2, + bool case_insensitive = false) +{ + if(case_insensitive) + { + if(s1.size() != s2.size()) + return false; + for(size_t i = 0; i < s1.size(); ++i) + if(tolower(s1[i]) != tolower(s2[i])) + return false; + return true; + } + else + { + return s1 == s2; + } +} + +// Tests if the second string is a prefix of the first, optionally case insensitive +inline bool str_starts_with(const std::wstring& str, const std::wstring& prefix, + bool case_insensitive = false) +{ + if(str.size() < prefix.size()) + return false; + if(case_insensitive) + { + for(size_t i = 0; i < prefix.size(); ++i) + if(tolower(str[i]) != tolower(prefix[i])) + return false; + } + else + { + for(size_t i = 0; i < prefix.size(); ++i) + if(str[i] != prefix[i]) + return false; + } + return true; +} + +inline std::wstring narrow_to_wide(const std::string& mbs) +{ + size_t wcl = mbs.size(); + Buffer wcs(wcl+1); + size_t l = mbstowcs(*wcs, mbs.c_str(), wcl); + if(l == (size_t)(-1)) + return L""; + wcs[l] = 0; + return *wcs; +} + +inline std::string wide_to_narrow(const std::wstring& wcs) +{ + size_t mbl = wcs.size()*4; + SharedBuffer mbs(mbl+1); + size_t l = wcstombs(*mbs, wcs.c_str(), mbl); + if(l == (size_t)(-1)) + mbs[0] = 0; + else + mbs[l] = 0; + return *mbs; +} + +// Split a string using the given delimiter. Returns a vector containing +// the component parts. +inline std::vector str_split(const std::wstring &str, wchar_t delimiter) +{ + std::vector parts; + std::wstringstream sstr(str); + std::wstring part; + while(std::getline(sstr, part, delimiter)) + parts.push_back(part); + return parts; +} + +inline std::string lowercase(const std::string &s) +{ + std::string s2; + for(size_t i=0; i= 'A' && c <= 'Z') + c -= 'A' - 'a'; + s2 += c; + } + return s2; +} + +inline bool is_yes(const std::string &s) +{ + std::string s2 = lowercase(trim(s)); + if(s2 == "y" || s2 == "yes" || s2 == "true" || s2 == "1") + return true; + return false; +} + +inline s32 mystoi(const std::string &s, s32 min, s32 max) +{ + s32 i = atoi(s.c_str()); + if(i < min) + i = min; + if(i > max) + i = max; + return i; +} + + +// MSVC2010 includes it's own versions of these +//#if !defined(_MSC_VER) || _MSC_VER < 1600 + +inline s32 mystoi(const std::string &s) +{ + return atoi(s.c_str()); +} + +inline s32 mystoi(const std::wstring &s) +{ + return atoi(wide_to_narrow(s).c_str()); +} + +inline float mystof(const std::string &s) +{ + // This crap causes a segfault in certain cases on MinGW + /*float f; + std::istringstream ss(s); + ss>>f; + return f;*/ + // This works in that case + return atof(s.c_str()); +} + +//#endif + +#define stoi mystoi +#define stof mystof + +inline std::string itos(s32 i) +{ + std::ostringstream o; + o< + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef UTIL_THREAD_HEADER +#define UTIL_THREAD_HEADER + +#include "../irrlichttypes.h" +#include +#include +#include + +template +class MutexedVariable +{ +public: + MutexedVariable(T value): + m_value(value) + { + m_mutex.Init(); + } + + T get() + { + JMutexAutoLock lock(m_mutex); + return m_value; + } + + void set(T value) + { + JMutexAutoLock lock(m_mutex); + m_value = value; + } + + // You'll want to grab this in a SharedPtr + JMutexAutoLock * getLock() + { + return new JMutexAutoLock(m_mutex); + } + + // You pretty surely want to grab the lock when accessing this + T m_value; + +private: + JMutex m_mutex; +}; + +/* + A base class for simple background thread implementation +*/ + +class SimpleThread : public JThread +{ + bool run; + JMutex run_mutex; + +public: + + SimpleThread(): + JThread(), + run(true) + { + run_mutex.Init(); + } + + virtual ~SimpleThread() + {} + + virtual void * Thread() = 0; + + bool getRun() + { + JMutexAutoLock lock(run_mutex); + return run; + } + void setRun(bool a_run) + { + JMutexAutoLock lock(run_mutex); + run = a_run; + } + + void stop() + { + setRun(false); + while(IsRunning()) + sleep_ms(100); + } +}; + +/* + A single worker thread - multiple client threads queue framework. +*/ + +template +class CallerInfo +{ +public: + Caller caller; + Data data; +}; + +template +class GetResult +{ +public: + Key key; + T item; + core::list > callers; +}; + +template +class ResultQueue: public MutexedQueue< GetResult > +{ +}; + +template +class GetRequest +{ +public: + GetRequest() + { + dest = NULL; + } + GetRequest(ResultQueue *a_dest) + { + dest = a_dest; + } + GetRequest(ResultQueue *a_dest, + Key a_key) + { + dest = a_dest; + key = a_key; + } + ~GetRequest() + { + } + + Key key; + ResultQueue *dest; + core::list > callers; +}; + +template +class RequestQueue +{ +public: + u32 size() + { + return m_queue.size(); + } + + void add(Key key, Caller caller, CallerData callerdata, + ResultQueue *dest) + { + JMutexAutoLock lock(m_queue.getMutex()); + + /* + If the caller is already on the list, only update CallerData + */ + for(typename core::list< GetRequest >::Iterator + i = m_queue.getList().begin(); + i != m_queue.getList().end(); i++) + { + GetRequest &request = *i; + + if(request.key == key) + { + for(typename core::list< CallerInfo >::Iterator + i = request.callers.begin(); + i != request.callers.end(); i++) + { + CallerInfo &ca = *i; + if(ca.caller == caller) + { + ca.data = callerdata; + return; + } + } + CallerInfo ca; + ca.caller = caller; + ca.data = callerdata; + request.callers.push_back(ca); + return; + } + } + + /* + Else add a new request to the queue + */ + + GetRequest request; + request.key = key; + CallerInfo ca; + ca.caller = caller; + ca.data = callerdata; + request.callers.push_back(ca); + request.dest = dest; + + m_queue.getList().push_back(request); + } + + GetRequest pop(bool wait_if_empty=false) + { + return m_queue.pop_front(wait_if_empty); + } + +private: + MutexedQueue< GetRequest > m_queue; +}; + +#endif + diff --git a/src/util/timetaker.cpp b/src/util/timetaker.cpp new file mode 100644 index 000000000..9cc87f3ea --- /dev/null +++ b/src/util/timetaker.cpp @@ -0,0 +1,61 @@ +/* +Minetest-c55 +Copyright (C) 2010-2012 celeron55, Perttu Ahola + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#include "timetaker.h" + +#include "gettime.h" +#include "log.h" +#include + +TimeTaker::TimeTaker(const char *name, u32 *result) +{ + m_name = name; + m_result = result; + m_running = true; + m_time1 = getTimeMs(); +} + +u32 TimeTaker::stop(bool quiet) +{ + if(m_running) + { + u32 time2 = getTimeMs(); + u32 dtime = time2 - m_time1; + if(m_result != NULL) + { + (*m_result) += dtime; + } + else + { + if(quiet == false) + infostream< + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef UTIL_TIMETAKER_HEADER +#define UTIL_TIMETAKER_HEADER + +#include "../irrlichttypes.h" + +/* + TimeTaker +*/ + +class TimeTaker +{ +public: + TimeTaker(const char *name, u32 *result=NULL); + + ~TimeTaker() + { + stop(); + } + + u32 stop(bool quiet=false); + + u32 getTime(); + +private: + const char *m_name; + u32 m_time1; + bool m_running; + u32 *m_result; +}; + +#endif + diff --git a/src/utility.cpp b/src/utility.cpp index 6b664ea8c..66127fc3b 100644 --- a/src/utility.cpp +++ b/src/utility.cpp @@ -1,6 +1,6 @@ /* Minetest-c55 -Copyright (C) 2010 celeron55, Perttu Ahola +Copyright (C) 2010-2012 celeron55, Perttu Ahola This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by @@ -17,436 +17,4 @@ with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -/* -(c) 2010 Perttu Ahola -*/ -#include "utility.h" -#include "gettime.h" -#include "sha1.h" -#include "base64.h" -#include "log.h" -#include - -TimeTaker::TimeTaker(const char *name, u32 *result) -{ - m_name = name; - m_result = result; - m_running = true; - m_time1 = getTimeMs(); -} - -u32 TimeTaker::stop(bool quiet) -{ - if(m_running) - { - u32 time2 = getTimeMs(); - u32 dtime = time2 - m_time1; - if(m_result != NULL) - { - (*m_result) += dtime; - } - else - { - if(quiet == false) - infostream< MYRAND_MAX) - { - errorstream<<"WARNING: myrand_range: max-min > MYRAND_MAX"< max) - { - assert(0); - return max; - } - return (myrand()%(max-min+1))+min; -} - -/* - blockpos: position of block in block coordinates - camera_pos: position of camera in nodes - camera_dir: an unit vector pointing to camera direction - range: viewing range -*/ -bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir, - f32 camera_fov, f32 range, f32 *distance_ptr) -{ - v3s16 blockpos_nodes = blockpos_b * MAP_BLOCKSIZE; - - // Block center position - v3f blockpos( - ((float)blockpos_nodes.X + MAP_BLOCKSIZE/2) * BS, - ((float)blockpos_nodes.Y + MAP_BLOCKSIZE/2) * BS, - ((float)blockpos_nodes.Z + MAP_BLOCKSIZE/2) * BS - ); - - // Block position relative to camera - v3f blockpos_relative = blockpos - camera_pos; - - // Distance in camera direction (+=front, -=back) - f32 dforward = blockpos_relative.dotProduct(camera_dir); - - // Total distance - f32 d = blockpos_relative.getLength(); - - if(distance_ptr) - *distance_ptr = d; - - // If block is very close, it is always in sight - if(d < 1.44*1.44*MAP_BLOCKSIZE*BS/2) - return true; - - // If block is far away, it's not in sight - if(d > range) - return false; - - // Maximum radius of a block - f32 block_max_radius = 0.5*1.44*1.44*MAP_BLOCKSIZE*BS; - - // If block is (nearly) touching the camera, don't - // bother validating further (that is, render it anyway) - if(d < block_max_radius) - return true; - - // Cosine of the angle between the camera direction - // and the block direction (camera_dir is an unit vector) - f32 cosangle = dforward / d; - - // Compensate for the size of the block - // (as the block has to be shown even if it's a bit off FOV) - // This is an estimate, plus an arbitary factor - cosangle += block_max_radius / d * 0.5; - - // If block is not in the field of view, skip it - if(cosangle < cos(camera_fov / 2)) - return false; - - return true; -} - -// Creates a string encoded in JSON format (almost equivalent to a C string literal) -std::string serializeJsonString(const std::string &plain) -{ - std::ostringstream os(std::ios::binary); - os<<"\""; - for(size_t i = 0; i < plain.size(); i++) - { - char c = plain[i]; - switch(c) - { - case '"': os<<"\\\""; break; - case '\\': os<<"\\\\"; break; - case '/': os<<"\\/"; break; - case '\b': os<<"\\b"; break; - case '\f': os<<"\\f"; break; - case '\n': os<<"\\n"; break; - case '\r': os<<"\\r"; break; - case '\t': os<<"\\t"; break; - default: - { - if(c >= 32 && c <= 126) - { - os<> c; - if(c != '"') - throw SerializationError("JSON string must start with doublequote"); - - // Parse characters - for(;;) - { - c = is.get(); - if(is.eof()) - throw SerializationError("JSON string ended prematurely"); - if(c == '"') - { - return os.str(); - } - else if(c == '\\') - { - c2 = is.get(); - if(is.eof()) - throw SerializationError("JSON string ended prematurely"); - switch(c2) - { - default: os<> std::hex >> hexnumber; - os<<((char)hexnumber); - break; - } - } - } - else - { - os< +Copyright (C) 2010-2012 celeron55, Perttu Ahola This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by @@ -20,1846 +20,16 @@ with this program; if not, write to the Free Software Foundation, Inc., #ifndef UTILITY_HEADER #define UTILITY_HEADER -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "common_irrlicht.h" -#include "debug.h" -#include "exceptions.h" -#include "porting.h" -#include "strfnd.h" // For trim() - -extern const v3s16 g_6dirs[6]; - -extern const v3s16 g_26dirs[26]; - -// 26th is (0,0,0) -extern const v3s16 g_27dirs[27]; - -inline void writeU64(u8 *data, u64 i) -{ - data[0] = ((i>>56)&0xff); - data[1] = ((i>>48)&0xff); - data[2] = ((i>>40)&0xff); - data[3] = ((i>>32)&0xff); - data[4] = ((i>>24)&0xff); - data[5] = ((i>>16)&0xff); - data[6] = ((i>> 8)&0xff); - data[7] = ((i>> 0)&0xff); -} - -inline void writeU32(u8 *data, u32 i) -{ - data[0] = ((i>>24)&0xff); - data[1] = ((i>>16)&0xff); - data[2] = ((i>> 8)&0xff); - data[3] = ((i>> 0)&0xff); -} - -inline void writeU16(u8 *data, u16 i) -{ - data[0] = ((i>> 8)&0xff); - data[1] = ((i>> 0)&0xff); -} - -inline void writeU8(u8 *data, u8 i) -{ - data[0] = ((i>> 0)&0xff); -} - -inline u64 readU64(u8 *data) -{ - return ((u64)data[0]<<56) | ((u64)data[1]<<48) - | ((u64)data[2]<<40) | ((u64)data[3]<<32) - | ((u64)data[4]<<24) | ((u64)data[5]<<16) - | ((u64)data[6]<<8) | ((u64)data[7]<<0); -} - -inline u32 readU32(u8 *data) -{ - return (data[0]<<24) | (data[1]<<16) | (data[2]<<8) | (data[3]<<0); -} - -inline u16 readU16(u8 *data) -{ - return (data[0]<<8) | (data[1]<<0); -} - -inline u8 readU8(u8 *data) -{ - return (data[0]<<0); -} - -inline void writeS32(u8 *data, s32 i){ - writeU32(data, (u32)i); -} -inline s32 readS32(u8 *data){ - return (s32)readU32(data); -} - -inline void writeS16(u8 *data, s16 i){ - writeU16(data, (u16)i); -} -inline s16 readS16(u8 *data){ - return (s16)readU16(data); -} - -inline void writeS8(u8 *data, s8 i){ - writeU8(data, (u8)i); -} -inline s8 readS8(u8 *data){ - return (s8)readU8(data); -} - -inline void writeF1000(u8 *data, f32 i){ - writeS32(data, i*1000); -} -inline f32 readF1000(u8 *data){ - return (f32)readS32(data)/1000.; -} - -inline void writeV3S32(u8 *data, v3s32 p) -{ - writeS32(&data[0], p.X); - writeS32(&data[4], p.Y); - writeS32(&data[8], p.Z); -} -inline v3s32 readV3S32(u8 *data) -{ - v3s32 p; - p.X = readS32(&data[0]); - p.Y = readS32(&data[4]); - p.Z = readS32(&data[8]); - return p; -} - -inline void writeV3F1000(u8 *data, v3f p) -{ - writeF1000(&data[0], p.X); - writeF1000(&data[4], p.Y); - writeF1000(&data[8], p.Z); -} -inline v3f readV3F1000(u8 *data) -{ - v3f p; - p.X = (float)readF1000(&data[0]); - p.Y = (float)readF1000(&data[4]); - p.Z = (float)readF1000(&data[8]); - return p; -} - -inline void writeV2F1000(u8 *data, v2f p) -{ - writeF1000(&data[0], p.X); - writeF1000(&data[4], p.Y); -} -inline v2f readV2F1000(u8 *data) -{ - v2f p; - p.X = (float)readF1000(&data[0]); - p.Y = (float)readF1000(&data[4]); - return p; -} - -inline void writeV2S16(u8 *data, v2s16 p) -{ - writeS16(&data[0], p.X); - writeS16(&data[2], p.Y); -} - -inline v2s16 readV2S16(u8 *data) -{ - v2s16 p; - p.X = readS16(&data[0]); - p.Y = readS16(&data[2]); - return p; -} - -inline void writeV2S32(u8 *data, v2s32 p) -{ - writeS32(&data[0], p.X); - writeS32(&data[2], p.Y); -} - -inline v2s32 readV2S32(u8 *data) -{ - v2s32 p; - p.X = readS32(&data[0]); - p.Y = readS32(&data[2]); - return p; -} - -inline void writeV3S16(u8 *data, v3s16 p) -{ - writeS16(&data[0], p.X); - writeS16(&data[2], p.Y); - writeS16(&data[4], p.Z); -} - -inline v3s16 readV3S16(u8 *data) -{ - v3s16 p; - p.X = readS16(&data[0]); - p.Y = readS16(&data[2]); - p.Z = readS16(&data[4]); - return p; -} - -/* - The above stuff directly interfaced to iostream -*/ - -inline void writeU8(std::ostream &os, u8 p) -{ - char buf[1] = {0}; - writeU8((u8*)buf, p); - os.write(buf, 1); -} -inline u8 readU8(std::istream &is) -{ - char buf[1] = {0}; - is.read(buf, 1); - return readU8((u8*)buf); -} - -inline void writeU16(std::ostream &os, u16 p) -{ - char buf[2] = {0}; - writeU16((u8*)buf, p); - os.write(buf, 2); -} -inline u16 readU16(std::istream &is) -{ - char buf[2] = {0}; - is.read(buf, 2); - return readU16((u8*)buf); -} - -inline void writeU32(std::ostream &os, u32 p) -{ - char buf[4] = {0}; - writeU32((u8*)buf, p); - os.write(buf, 4); -} -inline u32 readU32(std::istream &is) -{ - char buf[4] = {0}; - is.read(buf, 4); - return readU32((u8*)buf); -} - -inline void writeS32(std::ostream &os, s32 p) -{ - char buf[4] = {0}; - writeS32((u8*)buf, p); - os.write(buf, 4); -} -inline s32 readS32(std::istream &is) -{ - char buf[4] = {0}; - is.read(buf, 4); - return readS32((u8*)buf); -} - -inline void writeS16(std::ostream &os, s16 p) -{ - char buf[2] = {0}; - writeS16((u8*)buf, p); - os.write(buf, 2); -} -inline s16 readS16(std::istream &is) -{ - char buf[2] = {0}; - is.read(buf, 2); - return readS16((u8*)buf); -} - -inline void writeS8(std::ostream &os, s8 p) -{ - char buf[1] = {0}; - writeS8((u8*)buf, p); - os.write(buf, 1); -} -inline s8 readS8(std::istream &is) -{ - char buf[1] = {0}; - is.read(buf, 1); - return readS8((u8*)buf); -} - -inline void writeF1000(std::ostream &os, f32 p) -{ - char buf[4] = {0}; - writeF1000((u8*)buf, p); - os.write(buf, 4); -} -inline f32 readF1000(std::istream &is) -{ - char buf[4] = {0}; - is.read(buf, 4); - return readF1000((u8*)buf); -} - -inline void writeV3F1000(std::ostream &os, v3f p) -{ - char buf[12]; - writeV3F1000((u8*)buf, p); - os.write(buf, 12); -} -inline v3f readV3F1000(std::istream &is) -{ - char buf[12]; - is.read(buf, 12); - return readV3F1000((u8*)buf); -} - -inline void writeV2F1000(std::ostream &os, v2f p) -{ - char buf[8] = {0}; - writeV2F1000((u8*)buf, p); - os.write(buf, 8); -} -inline v2f readV2F1000(std::istream &is) -{ - char buf[8] = {0}; - is.read(buf, 8); - return readV2F1000((u8*)buf); -} - -inline void writeV2S16(std::ostream &os, v2s16 p) -{ - char buf[4] = {0}; - writeV2S16((u8*)buf, p); - os.write(buf, 4); -} -inline v2s16 readV2S16(std::istream &is) -{ - char buf[4] = {0}; - is.read(buf, 4); - return readV2S16((u8*)buf); -} - -inline void writeV3S16(std::ostream &os, v3s16 p) -{ - char buf[6] = {0}; - writeV3S16((u8*)buf, p); - os.write(buf, 6); -} -inline v3s16 readV3S16(std::istream &is) -{ - char buf[6] = {0}; - is.read(buf, 6); - return readV3S16((u8*)buf); -} - -/* - None of these are used at the moment -*/ - -template -class SharedPtr -{ -public: - SharedPtr(T *t=NULL) - { - refcount = new int; - *refcount = 1; - ptr = t; - } - SharedPtr(SharedPtr &t) - { - //*this = t; - drop(); - refcount = t.refcount; - (*refcount)++; - ptr = t.ptr; - } - ~SharedPtr() - { - drop(); - } - SharedPtr & operator=(T *t) - { - drop(); - refcount = new int; - *refcount = 1; - ptr = t; - return *this; - } - SharedPtr & operator=(SharedPtr &t) - { - drop(); - refcount = t.refcount; - (*refcount)++; - ptr = t.ptr; - return *this; - } - T* operator->() - { - return ptr; - } - T & operator*() - { - return *ptr; - } - bool operator!=(T *t) - { - return ptr != t; - } - bool operator==(T *t) - { - return ptr == t; - } - T & operator[](unsigned int i) - { - return ptr[i]; - } -private: - void drop() - { - assert((*refcount) > 0); - (*refcount)--; - if(*refcount == 0) - { - delete refcount; - if(ptr != NULL) - delete ptr; - } - } - T *ptr; - int *refcount; -}; - -template -class Buffer -{ -public: - Buffer() - { - m_size = 0; - data = NULL; - } - Buffer(unsigned int size) - { - m_size = size; - if(size != 0) - data = new T[size]; - else - data = NULL; - } - Buffer(const Buffer &buffer) - { - m_size = buffer.m_size; - if(m_size != 0) - { - data = new T[buffer.m_size]; - memcpy(data, buffer.data, buffer.m_size); - } - else - data = NULL; - } - Buffer(const T *t, unsigned int size) - { - m_size = size; - if(size != 0) - { - data = new T[size]; - memcpy(data, t, size); - } - else - data = NULL; - } - ~Buffer() - { - drop(); - } - Buffer& operator=(const Buffer &buffer) - { - if(this == &buffer) - return *this; - drop(); - m_size = buffer.m_size; - if(m_size != 0) - { - data = new T[buffer.m_size]; - memcpy(data, buffer.data, buffer.m_size); - } - else - data = NULL; - return *this; - } - T & operator[](unsigned int i) const - { - return data[i]; - } - T * operator*() const - { - return data; - } - unsigned int getSize() const - { - return m_size; - } -private: - void drop() - { - if(data) - delete[] data; - } - T *data; - unsigned int m_size; -}; - -template -class SharedBuffer -{ -public: - SharedBuffer() - { - m_size = 0; - data = NULL; - refcount = new unsigned int; - (*refcount) = 1; - } - SharedBuffer(unsigned int size) - { - m_size = size; - if(m_size != 0) - data = new T[m_size]; - else - data = NULL; - refcount = new unsigned int; - (*refcount) = 1; - } - SharedBuffer(const SharedBuffer &buffer) - { - //std::cout<<"SharedBuffer(const SharedBuffer &buffer)"< &buffer) - { - m_size = buffer.getSize(); - if(m_size != 0) - { - data = new T[m_size]; - memcpy(data, *buffer, buffer.getSize()); - } - else - data = NULL; - refcount = new unsigned int; - (*refcount) = 1; - } - ~SharedBuffer() - { - drop(); - } - T & operator[](unsigned int i) const - { - //assert(i < m_size) - return data[i]; - } - T * operator*() const - { - return data; - } - unsigned int getSize() const - { - return m_size; - } - operator Buffer() const - { - return Buffer(data, m_size); - } -private: - void drop() - { - assert((*refcount) > 0); - (*refcount)--; - if(*refcount == 0) - { - if(data) - delete[] data; - delete refcount; - } - } - T *data; - unsigned int m_size; - unsigned int *refcount; -}; - -inline SharedBuffer SharedBufferFromString(const char *string) -{ - SharedBuffer b((u8*)string, strlen(string)+1); - return b; -} - -template -class MutexedVariable -{ -public: - MutexedVariable(T value): - m_value(value) - { - m_mutex.Init(); - } - - T get() - { - JMutexAutoLock lock(m_mutex); - return m_value; - } - - void set(T value) - { - JMutexAutoLock lock(m_mutex); - m_value = value; - } - - // You'll want to grab this in a SharedPtr - JMutexAutoLock * getLock() - { - return new JMutexAutoLock(m_mutex); - } - - // You pretty surely want to grab the lock when accessing this - T m_value; - -private: - JMutex m_mutex; -}; - -/* - TimeTaker -*/ - -class TimeTaker -{ -public: - TimeTaker(const char *name, u32 *result=NULL); - - ~TimeTaker() - { - stop(); - } - - u32 stop(bool quiet=false); - - u32 getTime(); - -private: - const char *m_name; - u32 m_time1; - bool m_running; - u32 *m_result; -}; - -// Tests if two strings are equal, optionally case insensitive -inline bool str_equal(const std::wstring& s1, const std::wstring& s2, - bool case_insensitive = false) -{ - if(case_insensitive) - { - if(s1.size() != s2.size()) - return false; - for(size_t i = 0; i < s1.size(); ++i) - if(tolower(s1[i]) != tolower(s2[i])) - return false; - return true; - } - else - { - return s1 == s2; - } -} - -// Tests if the second string is a prefix of the first, optionally case insensitive -inline bool str_starts_with(const std::wstring& str, const std::wstring& prefix, - bool case_insensitive = false) -{ - if(str.size() < prefix.size()) - return false; - if(case_insensitive) - { - for(size_t i = 0; i < prefix.size(); ++i) - if(tolower(str[i]) != tolower(prefix[i])) - return false; - } - else - { - for(size_t i = 0; i < prefix.size(); ++i) - if(str[i] != prefix[i]) - return false; - } - return true; -} - -// Calculates the borders of a "d-radius" cube -inline void getFacePositions(core::list &list, u16 d) -{ - if(d == 0) - { - list.push_back(v3s16(0,0,0)); - return; - } - if(d == 1) - { - /* - This is an optimized sequence of coordinates. - */ - list.push_back(v3s16( 0, 1, 0)); // top - list.push_back(v3s16( 0, 0, 1)); // back - list.push_back(v3s16(-1, 0, 0)); // left - list.push_back(v3s16( 1, 0, 0)); // right - list.push_back(v3s16( 0, 0,-1)); // front - list.push_back(v3s16( 0,-1, 0)); // bottom - // 6 - list.push_back(v3s16(-1, 0, 1)); // back left - list.push_back(v3s16( 1, 0, 1)); // back right - list.push_back(v3s16(-1, 0,-1)); // front left - list.push_back(v3s16( 1, 0,-1)); // front right - list.push_back(v3s16(-1,-1, 0)); // bottom left - list.push_back(v3s16( 1,-1, 0)); // bottom right - list.push_back(v3s16( 0,-1, 1)); // bottom back - list.push_back(v3s16( 0,-1,-1)); // bottom front - list.push_back(v3s16(-1, 1, 0)); // top left - list.push_back(v3s16( 1, 1, 0)); // top right - list.push_back(v3s16( 0, 1, 1)); // top back - list.push_back(v3s16( 0, 1,-1)); // top front - // 18 - list.push_back(v3s16(-1, 1, 1)); // top back-left - list.push_back(v3s16( 1, 1, 1)); // top back-right - list.push_back(v3s16(-1, 1,-1)); // top front-left - list.push_back(v3s16( 1, 1,-1)); // top front-right - list.push_back(v3s16(-1,-1, 1)); // bottom back-left - list.push_back(v3s16( 1,-1, 1)); // bottom back-right - list.push_back(v3s16(-1,-1,-1)); // bottom front-left - list.push_back(v3s16( 1,-1,-1)); // bottom front-right - // 26 - return; - } - - // Take blocks in all sides, starting from y=0 and going +-y - for(s16 y=0; y<=d-1; y++) - { - // Left and right side, including borders - for(s16 z=-d; z<=d; z++) - { - list.push_back(v3s16(d,y,z)); - list.push_back(v3s16(-d,y,z)); - if(y != 0) - { - list.push_back(v3s16(d,-y,z)); - list.push_back(v3s16(-d,-y,z)); - } - } - // Back and front side, excluding borders - for(s16 x=-d+1; x<=d-1; x++) - { - list.push_back(v3s16(x,y,d)); - list.push_back(v3s16(x,y,-d)); - if(y != 0) - { - list.push_back(v3s16(x,-y,d)); - list.push_back(v3s16(x,-y,-d)); - } - } - } - - // Take the bottom and top face with borders - // -d=0 ? p : p-d+1) / d; -} - -inline v2s16 getContainerPos(v2s16 p, s16 d) -{ - return v2s16( - getContainerPos(p.X, d), - getContainerPos(p.Y, d) - ); -} - -inline v3s16 getContainerPos(v3s16 p, s16 d) -{ - return v3s16( - getContainerPos(p.X, d), - getContainerPos(p.Y, d), - getContainerPos(p.Z, d) - ); -} - -inline v2s16 getContainerPos(v2s16 p, v2s16 d) -{ - return v2s16( - getContainerPos(p.X, d.X), - getContainerPos(p.Y, d.Y) - ); -} - -inline v3s16 getContainerPos(v3s16 p, v3s16 d) -{ - return v3s16( - getContainerPos(p.X, d.X), - getContainerPos(p.Y, d.Y), - getContainerPos(p.Z, d.Z) - ); -} - -inline bool isInArea(v3s16 p, s16 d) -{ - return ( - p.X >= 0 && p.X < d && - p.Y >= 0 && p.Y < d && - p.Z >= 0 && p.Z < d - ); -} - -inline bool isInArea(v2s16 p, s16 d) -{ - return ( - p.X >= 0 && p.X < d && - p.Y >= 0 && p.Y < d - ); -} - -inline bool isInArea(v3s16 p, v3s16 d) -{ - return ( - p.X >= 0 && p.X < d.X && - p.Y >= 0 && p.Y < d.Y && - p.Z >= 0 && p.Z < d.Z - ); -} - -inline s16 rangelim(s16 i, s16 max) -{ - if(i < 0) - return 0; - if(i > max) - return max; - return i; -} - -#define rangelim(d, min, max) ((d) < (min) ? (min) : ((d)>(max)?(max):(d))) - -inline v3s16 arealim(v3s16 p, s16 d) -{ - if(p.X < 0) - p.X = 0; - if(p.Y < 0) - p.Y = 0; - if(p.Z < 0) - p.Z = 0; - if(p.X > d-1) - p.X = d-1; - if(p.Y > d-1) - p.Y = d-1; - if(p.Z > d-1) - p.Z = d-1; - return p; -} - -inline std::wstring narrow_to_wide(const std::string& mbs) -{ - size_t wcl = mbs.size(); - Buffer wcs(wcl+1); - size_t l = mbstowcs(*wcs, mbs.c_str(), wcl); - if(l == (size_t)(-1)) - return L""; - wcs[l] = 0; - return *wcs; -} - -inline std::string wide_to_narrow(const std::wstring& wcs) -{ - size_t mbl = wcs.size()*4; - SharedBuffer mbs(mbl+1); - size_t l = wcstombs(*mbs, wcs.c_str(), mbl); - if(l == (size_t)(-1)) - mbs[0] = 0; - else - mbs[l] = 0; - return *mbs; -} - -// Split a string using the given delimiter. Returns a vector containing -// the component parts. -inline std::vector str_split(const std::wstring &str, wchar_t delimiter) -{ - std::vector parts; - std::wstringstream sstr(str); - std::wstring part; - while(std::getline(sstr, part, delimiter)) - parts.push_back(part); - return parts; -} - - -/* - See test.cpp for example cases. - wraps degrees to the range of -360...360 - NOTE: Wrapping to 0...360 is not used because pitch needs negative values. -*/ -inline float wrapDegrees(float f) -{ - // Take examples of f=10, f=720.5, f=-0.5, f=-360.5 - // This results in - // 10, 720, -1, -361 - int i = floor(f); - // 0, 2, 0, -1 - int l = i / 360; - // NOTE: This would be used for wrapping to 0...360 - // 0, 2, -1, -2 - /*if(i < 0) - l -= 1;*/ - // 0, 720, 0, -360 - int k = l * 360; - // 10, 0.5, -0.5, -0.5 - f -= float(k); - return f; -} - -/* Wrap to 0...360 */ -inline float wrapDegrees_0_360(float f) -{ - // Take examples of f=10, f=720.5, f=-0.5, f=-360.5 - // This results in - // 10, 720, -1, -361 - int i = floor(f); - // 0, 2, 0, -1 - int l = i / 360; - // Wrap to 0...360 - // 0, 2, -1, -2 - if(i < 0) - l -= 1; - // 0, 720, 0, -360 - int k = l * 360; - // 10, 0.5, -0.5, -0.5 - f -= float(k); - return f; -} - -/* Wrap to -180...180 */ -inline float wrapDegrees_180(float f) -{ - f += 180; - f = wrapDegrees_0_360(f); - f -= 180; - return f; -} - -inline std::string lowercase(const std::string &s) -{ - std::string s2; - for(size_t i=0; i= 'A' && c <= 'Z') - c -= 'A' - 'a'; - s2 += c; - } - return s2; -} - -inline bool is_yes(const std::string &s) -{ - std::string s2 = lowercase(trim(s)); - if(s2 == "y" || s2 == "yes" || s2 == "true" || s2 == "1") - return true; - return false; -} - -inline s32 mystoi(const std::string &s, s32 min, s32 max) -{ - s32 i = atoi(s.c_str()); - if(i < min) - i = min; - if(i > max) - i = max; - return i; -} - - -// MSVC2010 includes it's own versions of these -//#if !defined(_MSC_VER) || _MSC_VER < 1600 - -inline s32 mystoi(const std::string &s) -{ - return atoi(s.c_str()); -} - -inline s32 mystoi(const std::wstring &s) -{ - return atoi(wide_to_narrow(s).c_str()); -} - -inline float mystof(const std::string &s) -{ - // This crap causes a segfault in certain cases on MinGW - /*float f; - std::istringstream ss(s); - ss>>f; - return f;*/ - // This works in that case - return atof(s.c_str()); -} - -//#endif - -#define stoi mystoi -#define stof mystof - -inline std::string itos(s32 i) -{ - std::ostringstream o; - o< -class Queue -{ -public: - void push_back(T t) - { - m_list.push_back(t); - } - - T pop_front() - { - if(m_list.size() == 0) - throw ItemNotFoundException("Queue: queue is empty"); - - typename core::list::Iterator begin = m_list.begin(); - T t = *begin; - m_list.erase(begin); - return t; - } - T pop_back() - { - if(m_list.size() == 0) - throw ItemNotFoundException("Queue: queue is empty"); - - typename core::list::Iterator last = m_list.getLast(); - T t = *last; - m_list.erase(last); - return t; - } - - u32 size() - { - return m_list.size(); - } - -protected: - core::list m_list; -}; - -/* - Thread-safe FIFO queue (well, actually a FILO also) -*/ - -template -class MutexedQueue -{ -public: - MutexedQueue() - { - m_mutex.Init(); - } - u32 size() - { - JMutexAutoLock lock(m_mutex); - return m_list.size(); - } - void push_back(T t) - { - JMutexAutoLock lock(m_mutex); - m_list.push_back(t); - } - T pop_front(u32 wait_time_max_ms=0) - { - u32 wait_time_ms = 0; - - for(;;) - { - { - JMutexAutoLock lock(m_mutex); - - if(m_list.size() > 0) - { - typename core::list::Iterator begin = m_list.begin(); - T t = *begin; - m_list.erase(begin); - return t; - } - - if(wait_time_ms >= wait_time_max_ms) - throw ItemNotFoundException("MutexedQueue: queue is empty"); - } - - // Wait a while before trying again - sleep_ms(10); - wait_time_ms += 10; - } - } - T pop_back(u32 wait_time_max_ms=0) - { - u32 wait_time_ms = 0; - - for(;;) - { - { - JMutexAutoLock lock(m_mutex); - - if(m_list.size() > 0) - { - typename core::list::Iterator last = m_list.getLast(); - T t = *last; - m_list.erase(last); - return t; - } - - if(wait_time_ms >= wait_time_max_ms) - throw ItemNotFoundException("MutexedQueue: queue is empty"); - } - - // Wait a while before trying again - sleep_ms(10); - wait_time_ms += 10; - } - } - - JMutex & getMutex() - { - return m_mutex; - } - - core::list & getList() - { - return m_list; - } - -protected: - JMutex m_mutex; - core::list m_list; -}; - -/* - A single worker thread - multiple client threads queue framework. -*/ - -template -class CallerInfo -{ -public: - Caller caller; - Data data; -}; - -template -class GetResult -{ -public: - Key key; - T item; - core::list > callers; -}; - -template -class ResultQueue: public MutexedQueue< GetResult > -{ -}; - -template -class GetRequest -{ -public: - GetRequest() - { - dest = NULL; - } - GetRequest(ResultQueue *a_dest) - { - dest = a_dest; - } - GetRequest(ResultQueue *a_dest, - Key a_key) - { - dest = a_dest; - key = a_key; - } - ~GetRequest() - { - } - - Key key; - ResultQueue *dest; - core::list > callers; -}; - -template -class RequestQueue -{ -public: - u32 size() - { - return m_queue.size(); - } - - void add(Key key, Caller caller, CallerData callerdata, - ResultQueue *dest) - { - JMutexAutoLock lock(m_queue.getMutex()); - - /* - If the caller is already on the list, only update CallerData - */ - for(typename core::list< GetRequest >::Iterator - i = m_queue.getList().begin(); - i != m_queue.getList().end(); i++) - { - GetRequest &request = *i; - - if(request.key == key) - { - for(typename core::list< CallerInfo >::Iterator - i = request.callers.begin(); - i != request.callers.end(); i++) - { - CallerInfo &ca = *i; - if(ca.caller == caller) - { - ca.data = callerdata; - return; - } - } - CallerInfo ca; - ca.caller = caller; - ca.data = callerdata; - request.callers.push_back(ca); - return; - } - } - - /* - Else add a new request to the queue - */ - - GetRequest request; - request.key = key; - CallerInfo ca; - ca.caller = caller; - ca.data = callerdata; - request.callers.push_back(ca); - request.dest = dest; - - m_queue.getList().push_back(request); - } - - GetRequest pop(bool wait_if_empty=false) - { - return m_queue.pop_front(wait_if_empty); - } - -private: - MutexedQueue< GetRequest > m_queue; -}; - -/* - Pseudo-random (VC++ rand() sucks) -*/ -int myrand(void); -void mysrand(unsigned seed); -#define MYRAND_MAX 32767 - -int myrand_range(int min, int max); - -/* - Miscellaneous functions -*/ - -bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir, - f32 camera_fov, f32 range, f32 *distance_ptr=NULL); - -/* - Queue with unique values with fast checking of value existence -*/ - -template -class UniqueQueue -{ -public: - - /* - Does nothing if value is already queued. - Return value: - true: value added - false: value already exists - */ - bool push_back(Value value) - { - // Check if already exists - if(m_map.find(value) != NULL) - return false; - - // Add - m_map.insert(value, 0); - m_list.push_back(value); - - return true; - } - - Value pop_front() - { - typename core::list::Iterator i = m_list.begin(); - Value value = *i; - m_map.remove(value); - m_list.erase(i); - return value; - } - - u32 size() - { - assert(m_list.size() == m_map.size()); - return m_list.size(); - } - -private: - core::map m_map; - core::list m_list; -}; - -#if 1 -template -class MutexedMap -{ -public: - MutexedMap() - { - m_mutex.Init(); - assert(m_mutex.IsInitialized()); - } - - void set(const Key &name, const Value &value) - { - JMutexAutoLock lock(m_mutex); - - m_values[name] = value; - } - - bool get(const Key &name, Value *result) - { - JMutexAutoLock lock(m_mutex); - - typename core::map::Node *n; - n = m_values.find(name); - - if(n == NULL) - return false; - - if(result != NULL) - *result = n->getValue(); - - return true; - } - -private: - core::map m_values; - JMutex m_mutex; -}; -#endif - -/* - Generates ids for comparable values. - Id=0 is reserved for "no value". - - Is fast at: - - Returning value by id (very fast) - - Returning id by value - - Generating a new id for a value - - Is not able to: - - Remove an id/value pair (is possible to implement but slow) -*/ -template -class MutexedIdGenerator -{ -public: - MutexedIdGenerator() - { - m_mutex.Init(); - assert(m_mutex.IsInitialized()); - } - - // Returns true if found - bool getValue(u32 id, T &value) - { - if(id == 0) - return false; - JMutexAutoLock lock(m_mutex); - if(m_id_to_value.size() < id) - return false; - value = m_id_to_value[id-1]; - return true; - } - - // If id exists for value, returns the id. - // Otherwise generates an id for the value. - u32 getId(const T &value) - { - JMutexAutoLock lock(m_mutex); - typename core::map::Node *n; - n = m_value_to_id.find(value); - if(n != NULL) - return n->getValue(); - m_id_to_value.push_back(value); - u32 new_id = m_id_to_value.size(); - m_value_to_id.insert(value, new_id); - return new_id; - } - -private: - JMutex m_mutex; - // Values are stored here at id-1 position (id 1 = [0]) - core::array m_id_to_value; - core::map m_value_to_id; -}; - -/* - Checks if a string contains only supplied characters -*/ -inline bool string_allowed(const std::string &s, const std::string &allowed_chars) -{ - for(u32 i=0; i(b)?(a):(b)) - -/* - Returns nearest 32-bit integer for given floating point number. - and in VC++ don't provide round(). -*/ -inline s32 myround(f32 f) -{ - return floor(f + 0.5); -} - -/* - Returns integer position of node in given floating point position -*/ -inline v3s16 floatToInt(v3f p, f32 d) -{ - v3s16 p2( - (p.X + (p.X>0 ? d/2 : -d/2))/d, - (p.Y + (p.Y>0 ? d/2 : -d/2))/d, - (p.Z + (p.Z>0 ? d/2 : -d/2))/d); - return p2; -} - -/* - Returns floating point position of node in given integer position -*/ -inline v3f intToFloat(v3s16 p, f32 d) -{ - v3f p2( - (f32)p.X * d, - (f32)p.Y * d, - (f32)p.Z * d - ); - return p2; -} - -/* - More serialization stuff -*/ - -// Creates a string with the length as the first two bytes -inline std::string serializeString(const std::string &plain) -{ - //assert(plain.size() <= 65535); - if(plain.size() > 65535) - throw SerializationError("String too long for serializeString"); - char buf[2]; - writeU16((u8*)&buf[0], plain.size()); - std::string s; - s.append(buf, 2); - s.append(plain); - return s; -} - -// Creates a string with the length as the first two bytes from wide string -inline std::string serializeWideString(const std::wstring &plain) -{ - //assert(plain.size() <= 65535); - if(plain.size() > 65535) - throw SerializationError("String too long for serializeString"); - char buf[2]; - writeU16((u8*)buf, plain.size()); - std::string s; - s.append(buf, 2); - for(u32 i=0; i buf2(s_size); - is.read(&buf2[0], s_size); - std::string s; - s.reserve(s_size); - s.append(&buf2[0], s_size); - return s; -} - -// Reads a wide string with the length as the first two bytes -inline std::wstring deSerializeWideString(std::istream &is) -{ - char buf[2]; - is.read(buf, 2); - if(is.gcount() != 2) - throw SerializationError("deSerializeString: size not read"); - u16 s_size = readU16((u8*)buf); - if(s_size == 0) - return L""; - std::wstring s; - s.reserve(s_size); - for(u32 i=0; i buf2(s_size); - is.read(&buf2[0], s_size); - std::string s; - s.reserve(s_size); - s.append(&buf2[0], s_size); - return s; -} - -// Creates a string encoded in JSON format (almost equivalent to a C string literal) -std::string serializeJsonString(const std::string &plain); - -// Reads a string encoded in JSON format -std::string deSerializeJsonString(std::istream &is); - -// - -// Random helper. Usually d=BS -inline core::aabbox3d getNodeBox(v3s16 p, float d) -{ - return core::aabbox3d( - (float)p.X * d - 0.5*d, - (float)p.Y * d - 0.5*d, - (float)p.Z * d - 0.5*d, - (float)p.X * d + 0.5*d, - (float)p.Y * d + 0.5*d, - (float)p.Z * d + 0.5*d - ); -} - -class IntervalLimiter -{ -public: - IntervalLimiter(): - m_accumulator(0) - { - } - /* - dtime: time from last call to this method - wanted_interval: interval wanted - return value: - true: action should be skipped - false: action should be done - */ - bool step(float dtime, float wanted_interval) - { - m_accumulator += dtime; - if(m_accumulator < wanted_interval) - return false; - m_accumulator -= wanted_interval; - return true; - } -protected: - float m_accumulator; -}; - -/* - Splits a list into "pages". For example, the list [1,2,3,4,5] split - into two pages would be [1,2,3],[4,5]. This function computes the - minimum and maximum indices of a single page. - - length: Length of the list that should be split - page: Page number, 1 <= page <= pagecount - pagecount: The number of pages, >= 1 - minindex: Receives the minimum index (inclusive). - maxindex: Receives the maximum index (exclusive). - - Ensures 0 <= minindex <= maxindex <= length. -*/ -inline void paging(u32 length, u32 page, u32 pagecount, u32 &minindex, u32 &maxindex) -{ - if(length < 1 || pagecount < 1 || page < 1 || page > pagecount) - { - // Special cases or invalid parameters - minindex = maxindex = 0; - } - else if(pagecount <= length) - { - // Less pages than entries in the list: - // Each page contains at least one entry - minindex = (length * (page-1) + (pagecount-1)) / pagecount; - maxindex = (length * page + (pagecount-1)) / pagecount; - } - else - { - // More pages than entries in the list: - // Make sure the empty pages are at the end - if(page < length) - { - minindex = page-1; - maxindex = page; - } - else - { - minindex = 0; - maxindex = 0; - } - } -} - -std::string translatePassword(std::string playername, std::wstring password); - -enum PointedThingType -{ - POINTEDTHING_NOTHING, - POINTEDTHING_NODE, - POINTEDTHING_OBJECT -}; - -struct PointedThing -{ - PointedThingType type; - v3s16 node_undersurface; - v3s16 node_abovesurface; - s16 object_id; - - PointedThing(); - std::string dump() const; - void serialize(std::ostream &os) const; - void deSerialize(std::istream &is); - bool operator==(const PointedThing &pt2) const; - bool operator!=(const PointedThing &pt2) const; -}; +// Headers whose content was previously here +#include "util/serialize.h" +#include "util/directiontables.h" +#include "util/pointer.h" +#include "util/string.h" +#include "util/container.h" +#include "util/thread.h" +#include "util/numeric.h" +#include "util/timetaker.h" +#include "util/pointedthing.h" #endif