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+
+#pragma once
+
+#include <set>
+#include "BlockID.h"
+#include "ChunkDef.h"
+#include "FastRandom.h"
+#include "Mobs/Monster.h" //this is a side-effect of keeping Mobfamily inside Monster class. I'd prefer to keep both (Mobfamily and Monster) inside a "Monster" namespace MG TODO : do it
+
+
+
+
+// fwd:
+class cChunk;
+
+
+
+
+
+/** This class is used to determine which monster can be spawned in which place
+it is essentially static (eg. Squids spawn in water, Zombies spawn in dark places)
+but it also has dynamic part depending on the world.ini settings.
+*/
+class cMobSpawner
+{
+public :
+ // constructor
+ // a_MobFamily is the Family of mobs that this spawner will spawn
+ // a_AllowedTypes is the set of types allowed for mobs it will spawn. Empty set
+ // would result in no spawn at all
+ // Allowed mobs thah are not of the right Family will not be include (no warning)
+ cMobSpawner(cMonster::eFamily MobFamily, const std::set<cMonster::eType> & a_AllowedTypes);
+
+ /// Check if specified block can be a Pack center for this spawner
+ bool CheckPackCenter(BLOCKTYPE a_BlockType);
+
+ // Try to create a monster here
+ // if this is the first of a Pack : determine the type of monster
+ // BlockType & BlockMeta are used to decide what kind of Mob can Spawn here
+ // MaxPackSize is set to the maximal size for a pack this type of mob
+ cMonster * TryToSpawnHere(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, BLOCKTYPE a_BlockType_below, NIBBLETYPE a_BlockMeta_below, BLOCKTYPE a_BlockType_above, NIBBLETYPE a_BlockMeta_above, EMCSBiome a_Biome, int a_Level, int& a_MaxPackSize);
+
+ // mark the beginning of a new Pack
+ // all mobs of the same Pack are the same type
+ void NewPack(void);
+
+ // return true if there is at least one allowed type
+ bool CanSpawnAnything(void);
+
+ typedef const std::set<cMonster *> tSpawnedContainer;
+ tSpawnedContainer & getSpawned(void);
+
+protected :
+ // return true if specified type of mob can spawn on specified block
+ bool CanSpawnHere(cMonster::eType a_MobType, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, BLOCKTYPE a_BlockType_below, NIBBLETYPE a_BlockMeta_below, BLOCKTYPE a_BlockType_above, NIBBLETYPE a_BlockMeta_above, EMCSBiome a_Biome, int a_Level);
+
+ // return a random type that can spawn on specified biome.
+ // returns E_ENTITY_TYPE_DONOTUSE if none is possible
+ cMonster::eType ChooseMobType(EMCSBiome a_Biome);
+
+ // add toAdd inside toAddIn, if toAdd is in m_AllowedTypes
+ void addIfAllowed(cMonster::eType toAdd, std::set<cMonster::eType> & toAddIn);
+
+protected :
+ cMonster::eFamily m_MonsterFamily;
+ std::set<cMonster::eType> m_AllowedTypes;
+ bool m_NewPack;
+ cMonster::eType m_MobType;
+ std::set<cMonster*> m_Spawned;
+ cFastRandom m_Random;
+} ;
+
+
+
+