Freeze-melt adjust
[oweals/minetest.git] / src / content_abm.cpp
index f19caf74eddd410fd76d107fa64c19e00922e46b..57e4637d4f98a4c83e77a94acd0857b1cfd0ecdd 100644 (file)
@@ -28,6 +28,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "treegen.h" // For treegen::make_tree
 #include "main.h" // for g_settings
 #include "map.h"
+#include "cpp_api/scriptapi.h"
+#include "log.h"
 
 #define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
 
@@ -166,42 +168,219 @@ public:
        }
 };
 
-class LiquidFlowABM : public ActiveBlockModifier
-{
-private:
-       std::set<std::string> contents;
+class LiquidFlowABM : public ActiveBlockModifier {
+       private:
+               std::set<std::string> contents;
 
-public:
-       LiquidFlowABM(ServerEnvironment *env, INodeDefManager *nodemgr) 
-       {
-               std::set<content_t> liquids;
-               nodemgr->getIds("group:liquid", liquids);
-               for(std::set<content_t>::const_iterator k = liquids.begin(); k != liquids.end(); k++)
-                       contents.insert(nodemgr->get(*k).liquid_alternative_flowing);
-               
-       }
-       virtual std::set<std::string> getTriggerContents()
-       {
-               return contents;
-       }
-       virtual float getTriggerInterval()
-       { return 10.0; }
-       virtual u32 getTriggerChance()
-       { return 10; }
-       virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n)
-       {
-               ServerMap *map = &env->getServerMap();
-               if (map->transforming_liquid_size() < 500)
+       public:
+               LiquidFlowABM(ServerEnvironment *env, INodeDefManager *nodemgr) {
+                       std::set<content_t> liquids;
+                       nodemgr->getIds("group:liquid", liquids);
+                       for(std::set<content_t>::const_iterator k = liquids.begin(); k != liquids.end(); k++)
+                               contents.insert(nodemgr->get(*k).liquid_alternative_flowing);
+               }
+               virtual std::set<std::string> getTriggerContents() {
+                       return contents;
+               }
+               virtual float getTriggerInterval()
+               { return 10.0; }
+               virtual u32 getTriggerChance()
+               { return 10; }
+               virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n) {
+                       ServerMap *map = &env->getServerMap();
+                       if (map->transforming_liquid_size() > 500)
+                               return;
                        map->transforming_liquid_add(p);
-               //if ((*map).m_transforming_liquid.size() < 500) (*map).m_transforming_liquid.push_back(p);
-       }
+               }
 };
 
-void add_legacy_abms(ServerEnvironment *env, INodeDefManager *nodedef)
-{
+class LiquidDropABM : public ActiveBlockModifier {
+       private:
+               std::set<std::string> contents;
+
+       public:
+               LiquidDropABM(ServerEnvironment *env, INodeDefManager *nodemgr) {
+                       std::set<content_t> liquids;
+                       nodemgr->getIds("group:liquid", liquids);
+                       for(std::set<content_t>::const_iterator k = liquids.begin(); k != liquids.end(); k++)
+                               contents.insert(nodemgr->get(*k).liquid_alternative_source);
+               }
+               virtual std::set<std::string> getTriggerContents()
+               { return contents; }
+               virtual std::set<std::string> getRequiredNeighbors() {
+                       std::set<std::string> neighbors;
+                       neighbors.insert("mapgen_air");
+                       return neighbors;
+               }
+               virtual float getTriggerInterval()
+               { return 20.0; }
+               virtual u32 getTriggerChance()
+               { return 10; }
+               virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n) {
+                       ServerMap *map = &env->getServerMap();
+                       if (map->transforming_liquid_size() > 500)
+                               return;
+                       if (   map->getNodeNoEx(p - v3s16(0,  1, 0 )).getContent() != CONTENT_AIR  // below
+                           && map->getNodeNoEx(p - v3s16(1,  0, 0 )).getContent() != CONTENT_AIR  // right
+                           && map->getNodeNoEx(p - v3s16(-1, 0, 0 )).getContent() != CONTENT_AIR  // left
+                           && map->getNodeNoEx(p - v3s16(0,  0, 1 )).getContent() != CONTENT_AIR  // back
+                           && map->getNodeNoEx(p - v3s16(0,  0, -1)).getContent() != CONTENT_AIR  // front
+                          )
+                               return;
+                       map->transforming_liquid_add(p);
+               }
+};
+
+class LiquidFreeze : public ActiveBlockModifier {
+       public:
+               LiquidFreeze(ServerEnvironment *env, INodeDefManager *nodemgr) { }
+               virtual std::set<std::string> getTriggerContents() {
+                       std::set<std::string> s;
+                       s.insert("group:freezes");
+                       return s;
+               }
+               virtual std::set<std::string> getRequiredNeighbors() {
+                       std::set<std::string> s;
+                       s.insert("mapgen_air");
+                       s.insert("group:melts");
+                       return s;
+               }
+               virtual float getTriggerInterval()
+               { return 10.0; }
+               virtual u32 getTriggerChance()
+               { return 20; }
+               virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n) {
+                       ServerMap *map = &env->getServerMap();
+                       INodeDefManager *ndef = env->getGameDef()->ndef();
+
+                       float heat = map->getHeat(env, p);
+                       //heater = rare
+                       content_t c = map->getNodeNoEx(p - v3s16(0,  -1, 0 )).getContent(); // top
+                       //more chance to freeze if air at top
+                       if (heat <= -1 && (heat <= -50 || (myrand_range(-50, heat) <= (c == CONTENT_AIR ? -10 : -40)))) {
+                               content_t c_self = n.getContent();
+                               // making freeze not annoying, do not freeze random blocks in center of ocean
+                               // todo: any block not water (dont freeze _source near _flowing)
+                               bool allow = heat < -40;
+                               // todo: make for(...)
+                               if (!allow) {
+                                c = map->getNodeNoEx(p - v3s16(0,  1, 0 )).getContent(); // below
+                                if (c == CONTENT_AIR || c == CONTENT_IGNORE)
+                                       return; // do not freeze when falling
+                                if (c != c_self && c != CONTENT_IGNORE) allow = 1;
+                                if (!allow) {
+                                 c = map->getNodeNoEx(p - v3s16(1,  0, 0 )).getContent(); // right
+                                 if (c != c_self && c != CONTENT_IGNORE) allow = 1;
+                                 if (!allow) {
+                                  c = map->getNodeNoEx(p - v3s16(-1, 0, 0 )).getContent(); // left
+                                  if (c != c_self && c != CONTENT_IGNORE) allow = 1;
+                                  if (!allow) {
+                                   c = map->getNodeNoEx(p - v3s16(0,  0, 1 )).getContent(); // back
+                                   if (c != c_self && c != CONTENT_IGNORE) allow = 1;
+                                   if (!allow) {
+                                    c = map->getNodeNoEx(p - v3s16(0,  0, -1)).getContent(); // front
+                                    if (c != c_self && c != CONTENT_IGNORE) allow = 1;
+                                   }
+                                  }
+                                 }
+                                }
+                               }
+                               if (allow) {
+                                       n.freezeMelt(ndef);
+                                       map->addNodeWithEvent(p, n);
+                               }
+                       }
+               }
+};
+
+class LiquidMeltWeather : public ActiveBlockModifier {
+       public:
+               LiquidMeltWeather(ServerEnvironment *env, INodeDefManager *nodemgr) { }
+               virtual std::set<std::string> getTriggerContents() {
+                       std::set<std::string> s;
+                       s.insert("group:melts");
+                       return s;
+               }
+               virtual std::set<std::string> getRequiredNeighbors() {
+                       std::set<std::string> s;
+                       s.insert("mapgen_air");
+                       s.insert("group:freezes");
+                       return s;
+               }
+               virtual float getTriggerInterval()
+               { return 10.0; }
+               virtual u32 getTriggerChance()
+               { return 20; }
+               virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n) {
+                       ServerMap *map = &env->getServerMap();
+                       INodeDefManager *ndef = env->getGameDef()->ndef();
+
+                       float heat = map->getHeat(env, p);
+                       content_t c = map->getNodeNoEx(p - v3s16(0,  -1, 0 )).getContent(); // top
+                       if (heat >= 1 && (heat >= 40 || ((myrand_range(heat, 40)) >= (c == CONTENT_AIR ? 10 : 20)))) {
+                               n.freezeMelt(ndef);
+                               map->addNodeWithEvent(p, n);
+                               env->getScriptIface()->node_falling_update(p);
+                       }
+               }
+};
+
+class LiquidMeltHot : public ActiveBlockModifier {
+       public:
+               LiquidMeltHot(ServerEnvironment *env, INodeDefManager *nodemgr) { }
+               virtual std::set<std::string> getTriggerContents() {
+                       std::set<std::string> s;
+                       s.insert("group:melts");
+                       return s;
+               }
+               virtual std::set<std::string> getRequiredNeighbors() {
+                       std::set<std::string> s;
+                       s.insert("group:igniter");
+                       s.insert("group:hot");
+                       return s;
+               }
+               virtual float getTriggerInterval()
+               { return 2.0; }
+               virtual u32 getTriggerChance()
+               { return 4; }
+               virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n) {
+                       ServerMap *map = &env->getServerMap();
+                       INodeDefManager *ndef = env->getGameDef()->ndef();
+                       n.freezeMelt(ndef);
+                       map->addNodeWithEvent(p, n);
+                       env->getScriptIface()->node_falling_update(p);
+               }
+};
+
+/* too buggy, later via liquid flow code
+class LiquidMeltAround : public LiquidMeltHot {
+       public:
+               LiquidMeltAround(ServerEnvironment *env, INodeDefManager *nodemgr) 
+                       : LiquidMeltHot(env, nodemgr) { }
+               virtual std::set<std::string> getRequiredNeighbors() {
+                       std::set<std::string> s;
+                       s.insert("group:melt_around");
+                       return s;
+               }
+               virtual float getTriggerInterval()
+               { return 40.0; }
+               virtual u32 getTriggerChance()
+               { return 60; }
+};
+*/
+
+void add_legacy_abms(ServerEnvironment *env, INodeDefManager *nodedef) {
        env->addActiveBlockModifier(new GrowGrassABM());
        env->addActiveBlockModifier(new RemoveGrassABM());
        env->addActiveBlockModifier(new MakeTreesFromSaplingsABM(env, nodedef));
-       if (g_settings->getBool("liquid_finite"))
+       if (g_settings->getBool("liquid_finite")) {
                env->addActiveBlockModifier(new LiquidFlowABM(env, nodedef));
+               env->addActiveBlockModifier(new LiquidDropABM(env, nodedef));
+               env->addActiveBlockModifier(new LiquidMeltHot(env, nodedef));
+               //env->addActiveBlockModifier(new LiquidMeltAround(env, nodedef));
+               if (g_settings->getBool("weather")) {
+                       env->addActiveBlockModifier(new LiquidFreeze(env, nodedef));
+                       env->addActiveBlockModifier(new LiquidMeltWeather(env, nodedef));
+               }
+       }
 }