minetest/src/player.cpp

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/*
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Minetest
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Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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.
*/
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#include "player.h"
#include <fstream>
#include "jthread/jmutexautolock.h"
#include "util/numeric.h"
#include "hud.h"
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#include "constants.h"
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#include "gamedef.h"
#include "settings.h"
#include "content_sao.h"
#include "filesys.h"
#include "log.h"
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#include "porting.h" // strlcpy
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Player::Player(IGameDef *gamedef, const char *name):
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touching_ground(false),
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in_liquid(false),
in_liquid_stable(false),
liquid_viscosity(0),
is_climbing(false),
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swimming_vertical(false),
camera_barely_in_ceiling(false),
inventory(gamedef->idef()),
hp(PLAYER_MAX_HP),
hurt_tilt_timer(0),
hurt_tilt_strength(0),
peer_id(PEER_ID_INEXISTENT),
keyPressed(0),
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// protected
m_gamedef(gamedef),
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m_breath(PLAYER_MAX_BREATH),
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m_pitch(0),
m_yaw(0),
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m_speed(0,0,0),
m_position(0,0,0),
m_collisionbox(-BS*0.30,0.0,-BS*0.30,BS*0.30,BS*1.75,BS*0.30),
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m_dirty(false)
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{
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strlcpy(m_name, name, PLAYERNAME_SIZE);
inventory.clear();
inventory.addList("main", PLAYER_INVENTORY_SIZE);
InventoryList *craft = inventory.addList("craft", 9);
craft->setWidth(3);
inventory.addList("craftpreview", 1);
inventory.addList("craftresult", 1);
inventory.setModified(false);
// Can be redefined via Lua
inventory_formspec = "size[8,7.5]"
//"image[1,0.6;1,2;player.png]"
"list[current_player;main;0,3.5;8,4;]"
"list[current_player;craft;3,0;3,3;]"
"listring[]"
"list[current_player;craftpreview;7,1;1,1;]";
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// Initialize movement settings at default values, so movement can work if the server fails to send them
movement_acceleration_default = 3 * BS;
movement_acceleration_air = 2 * BS;
movement_acceleration_fast = 10 * BS;
movement_speed_walk = 4 * BS;
movement_speed_crouch = 1.35 * BS;
movement_speed_fast = 20 * BS;
movement_speed_climb = 2 * BS;
movement_speed_jump = 6.5 * BS;
movement_liquid_fluidity = 1 * BS;
movement_liquid_fluidity_smooth = 0.5 * BS;
movement_liquid_sink = 10 * BS;
movement_gravity = 9.81 * BS;
local_animation_speed = 0.0;
// Movement overrides are multipliers and must be 1 by default
physics_override_speed = 1;
physics_override_jump = 1;
physics_override_gravity = 1;
physics_override_sneak = true;
physics_override_sneak_glitch = true;
hud_flags = HUD_FLAG_HOTBAR_VISIBLE | HUD_FLAG_HEALTHBAR_VISIBLE |
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HUD_FLAG_CROSSHAIR_VISIBLE | HUD_FLAG_WIELDITEM_VISIBLE |
HUD_FLAG_BREATHBAR_VISIBLE;
hud_hotbar_itemcount = HUD_HOTBAR_ITEMCOUNT_DEFAULT;
}
Player::~Player()
{
clearHud();
}
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// Horizontal acceleration (X and Z), Y direction is ignored
void Player::accelerateHorizontal(v3f target_speed, f32 max_increase)
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{
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if(max_increase == 0)
return;
v3f d_wanted = target_speed - m_speed;
d_wanted.Y = 0;
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f32 dl = d_wanted.getLength();
if(dl > max_increase)
dl = max_increase;
v3f d = d_wanted.normalize() * dl;
m_speed.X += d.X;
m_speed.Z += d.Z;
#if 0 // old code
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if(m_speed.X < target_speed.X - max_increase)
m_speed.X += max_increase;
else if(m_speed.X > target_speed.X + max_increase)
m_speed.X -= max_increase;
else if(m_speed.X < target_speed.X)
m_speed.X = target_speed.X;
else if(m_speed.X > target_speed.X)
m_speed.X = target_speed.X;
if(m_speed.Z < target_speed.Z - max_increase)
m_speed.Z += max_increase;
else if(m_speed.Z > target_speed.Z + max_increase)
m_speed.Z -= max_increase;
else if(m_speed.Z < target_speed.Z)
m_speed.Z = target_speed.Z;
else if(m_speed.Z > target_speed.Z)
m_speed.Z = target_speed.Z;
#endif
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}
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// Vertical acceleration (Y), X and Z directions are ignored
void Player::accelerateVertical(v3f target_speed, f32 max_increase)
{
if(max_increase == 0)
return;
f32 d_wanted = target_speed.Y - m_speed.Y;
if(d_wanted > max_increase)
d_wanted = max_increase;
else if(d_wanted < -max_increase)
d_wanted = -max_increase;
m_speed.Y += d_wanted;
#if 0 // old code
if(m_speed.Y < target_speed.Y - max_increase)
m_speed.Y += max_increase;
else if(m_speed.Y > target_speed.Y + max_increase)
m_speed.Y -= max_increase;
else if(m_speed.Y < target_speed.Y)
m_speed.Y = target_speed.Y;
else if(m_speed.Y > target_speed.Y)
m_speed.Y = target_speed.Y;
#endif
}
v3s16 Player::getLightPosition() const
{
return floatToInt(m_position + v3f(0,BS+BS/2,0), BS);
}
void Player::serialize(std::ostream &os)
{
// Utilize a Settings object for storing values
Settings args;
args.setS32("version", 1);
args.set("name", m_name);
//args.set("password", m_password);
args.setFloat("pitch", m_pitch);
args.setFloat("yaw", m_yaw);
args.setV3F("position", m_position);
args.setS32("hp", hp);
args.setS32("breath", m_breath);
args.writeLines(os);
os<<"PlayerArgsEnd\n";
inventory.serialize(os);
}
void Player::deSerialize(std::istream &is, std::string playername)
{
Settings args;
if (!args.parseConfigLines(is, "PlayerArgsEnd")) {
throw SerializationError("PlayerArgsEnd of player " +
playername + " not found!");
}
m_dirty = true;
//args.getS32("version"); // Version field value not used
std::string name = args.get("name");
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strlcpy(m_name, name.c_str(), PLAYERNAME_SIZE);
setPitch(args.getFloat("pitch"));
setYaw(args.getFloat("yaw"));
setPosition(args.getV3F("position"));
try{
hp = args.getS32("hp");
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}catch(SettingNotFoundException &e) {
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hp = PLAYER_MAX_HP;
}
try{
m_breath = args.getS32("breath");
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}catch(SettingNotFoundException &e) {
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m_breath = PLAYER_MAX_BREATH;
}
inventory.deSerialize(is);
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if(inventory.getList("craftpreview") == NULL) {
// Convert players without craftpreview
inventory.addList("craftpreview", 1);
bool craftresult_is_preview = true;
if(args.exists("craftresult_is_preview"))
craftresult_is_preview = args.getBool("craftresult_is_preview");
if(craftresult_is_preview)
{
// Clear craftresult
inventory.getList("craftresult")->changeItem(0, ItemStack());
}
}
}
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u32 Player::addHud(HudElement *toadd)
{
JMutexAutoLock lock(m_mutex);
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u32 id = getFreeHudID();
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if (id < hud.size())
hud[id] = toadd;
else
hud.push_back(toadd);
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return id;
}
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HudElement* Player::getHud(u32 id)
{
JMutexAutoLock lock(m_mutex);
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if (id < hud.size())
return hud[id];
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return NULL;
}
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HudElement* Player::removeHud(u32 id)
{
JMutexAutoLock lock(m_mutex);
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HudElement* retval = NULL;
if (id < hud.size()) {
retval = hud[id];
hud[id] = NULL;
}
return retval;
}
void Player::clearHud()
{
JMutexAutoLock lock(m_mutex);
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while(!hud.empty()) {
delete hud.back();
hud.pop_back();
}
}
void RemotePlayer::save(std::string savedir)
{
/*
* We have to open all possible player files in the players directory
* and check their player names because some file systems are not
* case-sensitive and player names are case-sensitive.
*/
// A player to deserialize files into to check their names
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RemotePlayer testplayer(m_gamedef, "");
savedir += DIR_DELIM;
std::string path = savedir + m_name;
for (u32 i = 0; i < PLAYER_FILE_ALTERNATE_TRIES; i++) {
if (!fs::PathExists(path)) {
// Open file and serialize
std::ostringstream ss(std::ios_base::binary);
serialize(ss);
if (!fs::safeWriteToFile(path, ss.str())) {
infostream << "Failed to write " << path << std::endl;
}
setModified(false);
return;
}
// Open file and deserialize
std::ifstream is(path.c_str(), std::ios_base::binary);
if (!is.good()) {
infostream << "Failed to open " << path << std::endl;
return;
}
testplayer.deSerialize(is, path);
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is.close();
if (strcmp(testplayer.getName(), m_name) == 0) {
// Open file and serialize
std::ostringstream ss(std::ios_base::binary);
serialize(ss);
if (!fs::safeWriteToFile(path, ss.str())) {
infostream << "Failed to write " << path << std::endl;
}
setModified(false);
return;
}
path = savedir + m_name + itos(i);
}
infostream << "Didn't find free file for player " << m_name << std::endl;
return;
}
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/*
RemotePlayer
*/
void RemotePlayer::setPosition(const v3f &position)
{
Player::setPosition(position);
if(m_sao)
m_sao->setBasePosition(position);
}