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-rw-r--r--src/BlockEntities/MobSpawnerEntity.cpp290
1 files changed, 290 insertions, 0 deletions
diff --git a/src/BlockEntities/MobSpawnerEntity.cpp b/src/BlockEntities/MobSpawnerEntity.cpp
new file mode 100644
index 000000000..26499972d
--- /dev/null
+++ b/src/BlockEntities/MobSpawnerEntity.cpp
@@ -0,0 +1,290 @@
+
+#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
+
+#include "MobSpawnerEntity.h"
+
+#include "../World.h"
+#include "../FastRandom.h"
+#include "../MobSpawner.h"
+#include "../Items/ItemSpawnEgg.h"
+
+
+
+
+
+cMobSpawnerEntity::cMobSpawnerEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World)
+ : super(E_BLOCK_MOB_SPAWNER, a_BlockX, a_BlockY, a_BlockZ, a_World)
+ , m_Entity(mtPig)
+ , m_SpawnDelay(100)
+ , m_IsActive(false)
+{
+}
+
+
+
+
+
+void cMobSpawnerEntity::SendTo(cClientHandle & a_Client)
+{
+ a_Client.SendUpdateBlockEntity(*this);
+}
+
+
+
+
+
+void cMobSpawnerEntity::UsedBy(cPlayer * a_Player)
+{
+ if (a_Player->GetEquippedItem().m_ItemType == E_ITEM_SPAWN_EGG)
+ {
+ eMonsterType MonsterType = cItemSpawnEggHandler::ItemDamageToMonsterType(a_Player->GetEquippedItem().m_ItemDamage);
+ if (MonsterType == eMonsterType::mtInvalidType)
+ {
+ return;
+ }
+
+ m_Entity = MonsterType;
+ ResetTimer();
+ if (!a_Player->IsGameModeCreative())
+ {
+ a_Player->GetInventory().RemoveOneEquippedItem();
+ }
+ LOGD("Changed monster spawner at {%d, %d, %d} to type %s.", GetPosX(), GetPosY(), GetPosZ(), cMonster::MobTypeToString(MonsterType).c_str());
+ }
+}
+
+
+
+
+
+void cMobSpawnerEntity::UpdateActiveState(void)
+{
+ if (GetNearbyPlayersNum() > 0)
+ {
+ m_IsActive = true;
+ }
+ else
+ {
+ m_IsActive = false;
+ }
+}
+
+
+
+
+
+bool cMobSpawnerEntity::Tick(float a_Dt, cChunk & a_Chunk)
+{
+ // Update the active flag every 5 seconds
+ if ((m_World->GetWorldAge() % 100) == 0)
+ {
+ UpdateActiveState();
+ }
+
+ if (!m_IsActive)
+ {
+ return false;
+ }
+
+ if (m_SpawnDelay <= 0)
+ {
+ SpawnEntity();
+ return true;
+ }
+ else
+ {
+ m_SpawnDelay--;
+ }
+ return false;
+}
+
+
+
+
+
+void cMobSpawnerEntity::ResetTimer(void)
+{
+ m_SpawnDelay = (short) (200 + m_World->GetTickRandomNumber(600));
+ m_World->BroadcastBlockEntity(m_PosX, m_PosY, m_PosZ);
+}
+
+
+
+
+
+void cMobSpawnerEntity::SpawnEntity(void)
+{
+ int NearbyEntities = GetNearbyMonsterNum(m_Entity);
+ if (NearbyEntities >= 6)
+ {
+ ResetTimer();
+ return;
+ }
+
+ class cCallback : public cChunkCallback
+ {
+ public:
+ cCallback(int a_RelX, int a_RelY, int a_RelZ, eMonsterType a_MobType, int a_NearbyEntitiesNum) :
+ m_RelX(a_RelX),
+ m_RelY(a_RelY),
+ m_RelZ(a_RelZ),
+ m_MobType(a_MobType),
+ m_NearbyEntitiesNum(a_NearbyEntitiesNum)
+ {
+ }
+
+ virtual bool Item(cChunk * a_Chunk)
+ {
+ cFastRandom Random;
+
+ bool EntitiesSpawned = false;
+ for (size_t i = 0; i < 4; i++)
+ {
+ if (m_NearbyEntitiesNum >= 6)
+ {
+ break;
+ }
+
+ int RelX = (int) (m_RelX + (double)(Random.NextFloat() - Random.NextFloat()) * 4.0);
+ int RelY = m_RelY + Random.NextInt(3) - 1;
+ int RelZ = (int) (m_RelZ + (double)(Random.NextFloat() - Random.NextFloat()) * 4.0);
+
+ cChunk * Chunk = a_Chunk->GetRelNeighborChunkAdjustCoords(RelX, RelZ);
+ if ((Chunk == NULL) || !Chunk->IsValid())
+ {
+ continue;
+ }
+ EMCSBiome Biome = Chunk->GetBiomeAt(RelX, RelZ);
+
+ if (cMobSpawner::CanSpawnHere(Chunk, RelX, RelY, RelZ, m_MobType, Biome))
+ {
+ double PosX = Chunk->GetPosX() * cChunkDef::Width + RelX;
+ double PosZ = Chunk->GetPosZ() * cChunkDef::Width + RelZ;
+
+ cMonster * Monster = cMonster::NewMonsterFromType(m_MobType);
+ if (Monster == NULL)
+ {
+ continue;
+ }
+
+ Monster->SetPosition(PosX, RelY, PosZ);
+ Monster->SetYaw(Random.NextFloat() * 360.0f);
+ if (Chunk->GetWorld()->SpawnMobFinalize(Monster) != mtInvalidType)
+ {
+ EntitiesSpawned = true;
+ Chunk->BroadcastSoundParticleEffect(2004, (int)(PosX * 8.0), (int)(RelY * 8.0), (int)(PosZ * 8.0), 0);
+ m_NearbyEntitiesNum++;
+ }
+ }
+ }
+ return EntitiesSpawned;
+ }
+ protected:
+ int m_RelX, m_RelY, m_RelZ;
+ eMonsterType m_MobType;
+ int m_NearbyEntitiesNum;
+ } Callback(m_RelX, m_PosY, m_RelZ, m_Entity, NearbyEntities);
+
+ if (m_World->DoWithChunk(GetChunkX(), GetChunkZ(), Callback))
+ {
+ ResetTimer();
+ }
+}
+
+
+
+
+
+int cMobSpawnerEntity::GetNearbyPlayersNum(void)
+{
+ Vector3d SpawnerPos(m_PosX + 0.5, m_PosY + 0.5, m_PosZ + 0.5);
+ int NumPlayers = 0;
+
+ class cCallback : public cChunkDataCallback
+ {
+ public:
+ cCallback(Vector3d a_SpawnerPos, int & a_NumPlayers) :
+ m_SpawnerPos(a_SpawnerPos),
+ m_NumPlayers(a_NumPlayers)
+ {
+ }
+
+ virtual void Entity(cEntity * a_Entity) override
+ {
+ if (!a_Entity->IsPlayer())
+ {
+ return;
+ }
+
+ if ((m_SpawnerPos - a_Entity->GetPosition()).Length() <= 16)
+ {
+ m_NumPlayers++;
+ }
+ }
+
+ protected:
+ Vector3d m_SpawnerPos;
+ int & m_NumPlayers;
+ } Callback(SpawnerPos, NumPlayers);
+
+ int ChunkX = GetChunkX();
+ int ChunkZ = GetChunkZ();
+ m_World->ForEachChunkInRect(ChunkX - 1, ChunkX + 1, ChunkZ - 1, ChunkZ + 1, Callback);
+
+ return NumPlayers;
+}
+
+
+
+
+
+int cMobSpawnerEntity::GetNearbyMonsterNum(eMonsterType a_EntityType)
+{
+ Vector3d SpawnerPos(m_PosX + 0.5, m_PosY + 0.5, m_PosZ + 0.5);
+ int NumEntities = 0;
+
+ class cCallback : public cChunkDataCallback
+ {
+ public:
+ cCallback(Vector3d a_SpawnerPos, eMonsterType a_EntityType, int & a_NumEntities) :
+ m_SpawnerPos(a_SpawnerPos),
+ m_EntityType(a_EntityType),
+ m_NumEntities(a_NumEntities)
+ {
+ }
+
+ virtual void Entity(cEntity * a_Entity) override
+ {
+ if (!a_Entity->IsMob())
+ {
+ return;
+ }
+
+ cMonster * Mob = (cMonster *)a_Entity;
+ if (Mob->GetMobType() != m_EntityType)
+ {
+ return;
+ }
+
+ if (((m_SpawnerPos - a_Entity->GetPosition()).Length() <= 8) && (Diff(m_SpawnerPos.y, a_Entity->GetPosY()) <= 4.0))
+ {
+ m_NumEntities++;
+ }
+ }
+
+ protected:
+ Vector3d m_SpawnerPos;
+ eMonsterType m_EntityType;
+ int & m_NumEntities;
+ } Callback(SpawnerPos, a_EntityType, NumEntities);
+
+ int ChunkX = GetChunkX();
+ int ChunkZ = GetChunkZ();
+ m_World->ForEachChunkInRect(ChunkX - 1, ChunkX + 1, ChunkZ - 1, ChunkZ + 1, Callback);
+
+ return NumEntities;
+}
+
+
+
+