mirror of https://github.com/minetest/minetest.git
248 lines
8.2 KiB
C++
248 lines
8.2 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "content_abm.h"
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#include "environment.h"
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#include "gamedef.h"
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#include "nodedef.h"
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#include "content_sao.h"
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#include "settings.h"
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#include "mapblock.h" // For getNodeBlockPos
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#include "main.h" // for g_settings
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#include "map.h"
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#include "scripting_game.h"
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#include "log.h"
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#define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
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class LiquidFlowABM : public ActiveBlockModifier {
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private:
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std::set<std::string> contents;
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public:
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LiquidFlowABM(ServerEnvironment *env, INodeDefManager *nodemgr) {
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std::set<content_t> liquids;
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nodemgr->getIds("group:liquid", liquids);
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for(std::set<content_t>::const_iterator k = liquids.begin(); k != liquids.end(); k++)
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contents.insert(nodemgr->get(*k).liquid_alternative_flowing);
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}
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virtual std::set<std::string> getTriggerContents() {
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return contents;
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}
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virtual float getTriggerInterval()
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{ return 10.0; }
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virtual u32 getTriggerChance()
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{ return 10; }
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virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n) {
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ServerMap *map = &env->getServerMap();
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if (map->transforming_liquid_size() > 500)
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return;
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map->transforming_liquid_add(p);
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}
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};
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class LiquidDropABM : public ActiveBlockModifier {
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private:
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std::set<std::string> contents;
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public:
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LiquidDropABM(ServerEnvironment *env, INodeDefManager *nodemgr) {
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std::set<content_t> liquids;
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nodemgr->getIds("group:liquid", liquids);
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for(std::set<content_t>::const_iterator k = liquids.begin(); k != liquids.end(); k++)
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contents.insert(nodemgr->get(*k).liquid_alternative_source);
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}
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virtual std::set<std::string> getTriggerContents()
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{ return contents; }
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virtual std::set<std::string> getRequiredNeighbors() {
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std::set<std::string> neighbors;
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neighbors.insert("air");
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return neighbors;
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}
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virtual float getTriggerInterval()
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{ return 20.0; }
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virtual u32 getTriggerChance()
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{ return 10; }
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virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n) {
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ServerMap *map = &env->getServerMap();
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if (map->transforming_liquid_size() > 500)
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return;
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if ( map->getNodeNoEx(p - v3s16(0, 1, 0 )).getContent() != CONTENT_AIR // below
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&& map->getNodeNoEx(p - v3s16(1, 0, 0 )).getContent() != CONTENT_AIR // right
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&& map->getNodeNoEx(p - v3s16(-1, 0, 0 )).getContent() != CONTENT_AIR // left
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&& map->getNodeNoEx(p - v3s16(0, 0, 1 )).getContent() != CONTENT_AIR // back
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&& map->getNodeNoEx(p - v3s16(0, 0, -1)).getContent() != CONTENT_AIR // front
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)
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return;
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map->transforming_liquid_add(p);
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}
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};
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class LiquidFreeze : public ActiveBlockModifier {
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public:
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LiquidFreeze(ServerEnvironment *env, INodeDefManager *nodemgr) { }
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virtual std::set<std::string> getTriggerContents() {
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std::set<std::string> s;
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s.insert("group:freezes");
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return s;
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}
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virtual std::set<std::string> getRequiredNeighbors() {
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std::set<std::string> s;
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s.insert("air");
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s.insert("group:melts");
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return s;
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}
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virtual float getTriggerInterval()
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{ return 10.0; }
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virtual u32 getTriggerChance()
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{ return 20; }
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virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n) {
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ServerMap *map = &env->getServerMap();
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INodeDefManager *ndef = env->getGameDef()->ndef();
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float heat = map->updateBlockHeat(env, p);
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//heater = rare
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content_t c = map->getNodeNoEx(p - v3s16(0, -1, 0 )).getContent(); // top
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//more chance to freeze if air at top
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if (heat <= -1 && (heat <= -50 || (myrand_range(-50, heat) <= (c == CONTENT_AIR ? -10 : -40)))) {
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content_t c_self = n.getContent();
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// making freeze not annoying, do not freeze random blocks in center of ocean
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// todo: any block not water (dont freeze _source near _flowing)
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bool allow = heat < -40;
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// todo: make for(...)
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if (!allow) {
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c = map->getNodeNoEx(p - v3s16(0, 1, 0 )).getContent(); // below
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if (c == CONTENT_AIR || c == CONTENT_IGNORE)
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return; // do not freeze when falling
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if (c != c_self && c != CONTENT_IGNORE) allow = 1;
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if (!allow) {
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c = map->getNodeNoEx(p - v3s16(1, 0, 0 )).getContent(); // right
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if (c != c_self && c != CONTENT_IGNORE) allow = 1;
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if (!allow) {
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c = map->getNodeNoEx(p - v3s16(-1, 0, 0 )).getContent(); // left
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if (c != c_self && c != CONTENT_IGNORE) allow = 1;
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if (!allow) {
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c = map->getNodeNoEx(p - v3s16(0, 0, 1 )).getContent(); // back
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if (c != c_self && c != CONTENT_IGNORE) allow = 1;
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if (!allow) {
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c = map->getNodeNoEx(p - v3s16(0, 0, -1)).getContent(); // front
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if (c != c_self && c != CONTENT_IGNORE) allow = 1;
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}
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}
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}
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}
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}
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if (allow) {
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n.freezeMelt(ndef);
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map->addNodeWithEvent(p, n);
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}
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}
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}
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};
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class LiquidMeltWeather : public ActiveBlockModifier {
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public:
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LiquidMeltWeather(ServerEnvironment *env, INodeDefManager *nodemgr) { }
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virtual std::set<std::string> getTriggerContents() {
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std::set<std::string> s;
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s.insert("group:melts");
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return s;
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}
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virtual std::set<std::string> getRequiredNeighbors() {
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std::set<std::string> s;
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s.insert("air");
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s.insert("group:freezes");
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return s;
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}
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virtual float getTriggerInterval()
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{ return 10.0; }
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virtual u32 getTriggerChance()
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{ return 20; }
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virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n) {
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ServerMap *map = &env->getServerMap();
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INodeDefManager *ndef = env->getGameDef()->ndef();
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float heat = map->updateBlockHeat(env, p);
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content_t c = map->getNodeNoEx(p - v3s16(0, -1, 0 )).getContent(); // top
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if (heat >= 1 && (heat >= 40 || ((myrand_range(heat, 40)) >= (c == CONTENT_AIR ? 10 : 20)))) {
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n.freezeMelt(ndef);
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map->addNodeWithEvent(p, n);
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env->getScriptIface()->node_falling_update(p);
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}
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}
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};
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class LiquidMeltHot : public ActiveBlockModifier {
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public:
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LiquidMeltHot(ServerEnvironment *env, INodeDefManager *nodemgr) { }
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virtual std::set<std::string> getTriggerContents() {
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std::set<std::string> s;
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s.insert("group:melts");
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return s;
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}
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virtual std::set<std::string> getRequiredNeighbors() {
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std::set<std::string> s;
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s.insert("group:igniter");
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s.insert("group:hot");
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return s;
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}
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virtual float getTriggerInterval()
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{ return 2.0; }
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virtual u32 getTriggerChance()
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{ return 4; }
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virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n) {
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ServerMap *map = &env->getServerMap();
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INodeDefManager *ndef = env->getGameDef()->ndef();
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n.freezeMelt(ndef);
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map->addNodeWithEvent(p, n);
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env->getScriptIface()->node_falling_update(p);
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}
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};
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/* too buggy, later via liquid flow code
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class LiquidMeltAround : public LiquidMeltHot {
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public:
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LiquidMeltAround(ServerEnvironment *env, INodeDefManager *nodemgr)
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: LiquidMeltHot(env, nodemgr) { }
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virtual std::set<std::string> getRequiredNeighbors() {
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std::set<std::string> s;
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s.insert("group:melt_around");
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return s;
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}
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virtual float getTriggerInterval()
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{ return 40.0; }
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virtual u32 getTriggerChance()
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{ return 60; }
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};
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*/
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void add_legacy_abms(ServerEnvironment *env, INodeDefManager *nodedef) {
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if (g_settings->getBool("liquid_finite")) {
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env->addActiveBlockModifier(new LiquidFlowABM(env, nodedef));
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env->addActiveBlockModifier(new LiquidDropABM(env, nodedef));
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env->addActiveBlockModifier(new LiquidMeltHot(env, nodedef));
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//env->addActiveBlockModifier(new LiquidMeltAround(env, nodedef));
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if (env->m_use_weather) {
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env->addActiveBlockModifier(new LiquidFreeze(env, nodedef));
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env->addActiveBlockModifier(new LiquidMeltWeather(env, nodedef));
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}
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}
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}
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