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authorworktycho <work.tycho@gmail.com>2013-12-09 18:51:12 +0100
committerworktycho <work.tycho@gmail.com>2013-12-09 18:51:12 +0100
commit843605d59ebc128be0a578dc6f45ef8c05da6e79 (patch)
tree3ffebc6ba27baf7a9e1d4bc51501ffeea9b14226 /src/MobProximityCounter.h
parentmerged makefile changes (diff)
parentFix Undefined behavior at Bindings/LuaWindow line 32 (diff)
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Diffstat (limited to 'src/MobProximityCounter.h')
-rw-r--r--src/MobProximityCounter.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/src/MobProximityCounter.h b/src/MobProximityCounter.h
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+++ b/src/MobProximityCounter.h
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+
+#pragma once
+
+#include <set>
+
+class cChunk;
+class cEntity;
+
+
+// This class is used to collect, for each Mob, what is the distance of the closest player
+// it was first being designed in order to make mobs spawn / despawn / act
+// as the behaviour and even life of mobs depends on the distance to closest player
+class cMobProximityCounter
+{
+protected :
+ // structs used for later maps (see m_MonsterToDistance and m_DistanceToMonster)
+ struct sDistanceAndChunk
+ {
+ sDistanceAndChunk(double a_Distance, cChunk& a_Chunk) : m_Distance(a_Distance), m_Chunk(a_Chunk) {}
+ double m_Distance;
+ cChunk& m_Chunk;
+ };
+ struct sMonsterAndChunk
+ {
+ sMonsterAndChunk(cEntity& a_Monster, cChunk& a_Chunk) : m_Monster(a_Monster), m_Chunk(a_Chunk) {}
+ cEntity& m_Monster;
+ cChunk& m_Chunk;
+ };
+
+public :
+ typedef std::map<cEntity*,sDistanceAndChunk> tMonsterToDistance;
+ typedef std::multimap<double,sMonsterAndChunk> tDistanceToMonster;
+
+protected :
+ // this map is filled during collection phase, it will be later transformed into DistanceToMonster
+ tMonsterToDistance m_MonsterToDistance;
+
+ // this map is generated after collection phase, in order to access monster by distance to player
+ tDistanceToMonster m_DistanceToMonster;
+
+ // this are the collected chunks. Used to determinate the number of elligible chunk for spawning.
+ std::set<cChunk*> m_EligibleForSpawnChunks;
+
+protected :
+ // transform monsterToDistance map (that was usefull for collecting) into distanceToMonster
+ // that will be usefull for picking up.
+ void convertMaps();
+
+public :
+ // count a mob on a specified chunk with specified distance to an unkown player
+ // if the distance is shortest than the one collected, this become the new closest
+ // distance and the chunk become the "hosting" chunk (that is the one that will perform the action)
+ void CollectMob(cEntity& a_Monster, cChunk& a_Chunk, double a_Distance);
+
+ // return the mobs that are within the range of distance of the closest player they are
+ // that means that if a mob is 30 m from a player and 150 m from another one. It will be
+ // in the range [0..50] but not in [100..200]
+ struct sIterablePair{
+ tDistanceToMonster::const_iterator m_Begin;
+ tDistanceToMonster::const_iterator m_End;
+ int m_Count;
+ };
+ sIterablePair getMobWithinThosesDistances(double a_DistanceMin, double a_DistanceMax);
+
+};