412 lines
8.6 KiB
C++
412 lines
8.6 KiB
C++
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#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
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#include "MobSpawner.h"
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#include "Mobs/IncludeAllMonsters.h"
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#include "World.h"
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cMobSpawner::cMobSpawner(cMonster::eFamily a_MonsterFamily, const std::set<eMonsterType>& a_AllowedTypes) :
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m_MonsterFamily(a_MonsterFamily),
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m_NewPack(true),
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m_MobType(mtInvalidType)
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{
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for (std::set<eMonsterType>::const_iterator itr = a_AllowedTypes.begin(); itr != a_AllowedTypes.end(); ++itr)
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{
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if (cMonster::FamilyFromType(*itr) == a_MonsterFamily)
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{
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m_AllowedTypes.insert(*itr);
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}
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}
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}
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bool cMobSpawner::CheckPackCenter(BLOCKTYPE a_BlockType)
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{
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// Packs of non-water mobs can only be centered on an air block
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// Packs of water mobs can only be centered on a water block
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if (m_MonsterFamily == cMonster::mfWater)
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{
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return IsBlockWater(a_BlockType);
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}
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else
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{
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return a_BlockType == E_BLOCK_AIR;
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}
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}
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void cMobSpawner::addIfAllowed(eMonsterType toAdd, std::set<eMonsterType>& toAddIn)
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{
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std::set<eMonsterType>::iterator itr = m_AllowedTypes.find(toAdd);
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if (itr != m_AllowedTypes.end())
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{
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toAddIn.insert(toAdd);
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}
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}
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eMonsterType cMobSpawner::ChooseMobType(EMCSBiome a_Biome)
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{
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std::set<eMonsterType> allowedMobs;
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if ((a_Biome == biMushroomIsland) || (a_Biome == biMushroomShore))
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{
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addIfAllowed(mtMooshroom, allowedMobs);
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}
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else if (a_Biome == biNether)
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{
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addIfAllowed(mtGhast, allowedMobs);
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addIfAllowed(mtZombiePigman, allowedMobs);
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addIfAllowed(mtMagmaCube, allowedMobs);
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}
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else if (a_Biome == biEnd)
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{
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addIfAllowed(mtEnderman, allowedMobs);
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}
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else
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{
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addIfAllowed(mtBat, allowedMobs);
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addIfAllowed(mtSpider, allowedMobs);
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addIfAllowed(mtZombie, allowedMobs);
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addIfAllowed(mtSkeleton, allowedMobs);
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addIfAllowed(mtCreeper, allowedMobs);
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addIfAllowed(mtSquid, allowedMobs);
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addIfAllowed(mtGuardian, allowedMobs);
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if ((a_Biome != biDesert) && (a_Biome != biBeach) && (a_Biome != biOcean))
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{
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addIfAllowed(mtSheep, allowedMobs);
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addIfAllowed(mtPig, allowedMobs);
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addIfAllowed(mtCow, allowedMobs);
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addIfAllowed(mtChicken, allowedMobs);
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addIfAllowed(mtEnderman, allowedMobs);
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addIfAllowed(mtRabbit, allowedMobs);
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addIfAllowed(mtSlime, allowedMobs); // MG TODO : much more complicated rule
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if ((a_Biome == biForest) || (a_Biome == biForestHills) || (a_Biome == biTaiga) || (a_Biome == biTaigaHills))
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{
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addIfAllowed(mtWolf, allowedMobs);
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}
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else if ((a_Biome == biJungle) || (a_Biome == biJungleHills))
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{
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addIfAllowed(mtOcelot, allowedMobs);
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}
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}
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}
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size_t allowedMobsSize = allowedMobs.size();
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if (allowedMobsSize > 0)
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{
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std::set<eMonsterType>::iterator itr = allowedMobs.begin();
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std::advance(itr, GetRandomProvider().RandInt<size_t>(allowedMobsSize - 1));
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return *itr;
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}
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return mtInvalidType;
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}
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bool cMobSpawner::CanSpawnHere(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, eMonsterType a_MobType, EMCSBiome a_Biome)
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{
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if (a_Chunk == nullptr)
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{
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return false;
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}
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if (cChunkDef::IsValidHeight(a_RelY - 1) && (a_Chunk->GetBlock(a_RelX, a_RelY - 1, a_RelZ) == E_BLOCK_BEDROCK))
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{
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return false; // Make sure mobs do not spawn on bedrock.
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}
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auto & Random = GetRandomProvider();
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BLOCKTYPE TargetBlock = a_Chunk->GetBlock(a_RelX, a_RelY, a_RelZ);
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cPlayer * a_Closest_Player = a_Chunk->GetWorld()->FindClosestPlayer(a_Chunk->PositionToWorldPosition(a_RelX, a_RelY, a_RelZ), 24);
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if (a_Closest_Player != nullptr) // Too close to a player, bail out
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{
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return false;
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}
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if ((a_RelY >= cChunkDef::Height - 1) || (a_RelY <= 0))
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{
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return false;
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}
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NIBBLETYPE BlockLight = a_Chunk->GetBlockLight(a_RelX, a_RelY, a_RelZ);
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NIBBLETYPE SkyLight = a_Chunk->GetSkyLight(a_RelX, a_RelY, a_RelZ);
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BLOCKTYPE BlockAbove = a_Chunk->GetBlock(a_RelX, a_RelY + 1, a_RelZ);
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BLOCKTYPE BlockBelow = a_Chunk->GetBlock(a_RelX, a_RelY - 1, a_RelZ);
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SkyLight = a_Chunk->GetTimeAlteredLight(SkyLight);
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switch (a_MobType)
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{
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case mtGuardian:
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{
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return IsBlockWater(TargetBlock) && (a_RelY >= 45) && (a_RelY <= 62);
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}
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case mtSquid:
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{
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return IsBlockWater(TargetBlock) && (a_RelY >= 45) && (a_RelY <= 62);
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}
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case mtBat:
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{
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return (a_RelY <= 63) && (BlockLight <= 4) && (SkyLight <= 4) && (TargetBlock == E_BLOCK_AIR) && !cBlockInfo::IsTransparent(BlockAbove);
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}
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case mtChicken:
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case mtCow:
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case mtPig:
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case mtHorse:
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case mtRabbit:
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case mtSheep:
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{
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return (
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(TargetBlock == E_BLOCK_AIR) &&
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(BlockAbove == E_BLOCK_AIR) &&
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(!cBlockInfo::IsTransparent(BlockBelow)) &&
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(BlockBelow == E_BLOCK_GRASS) &&
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(SkyLight >= 9)
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);
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}
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case mtOcelot:
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{
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return (
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(TargetBlock == E_BLOCK_AIR) &&
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(BlockAbove == E_BLOCK_AIR) &&
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(
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(BlockBelow == E_BLOCK_GRASS) || (BlockBelow == E_BLOCK_LEAVES) || (BlockBelow == E_BLOCK_NEW_LEAVES)
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) &&
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(a_RelY >= 62) &&
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(Random.RandBool(2.0 / 3.0))
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);
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}
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case mtEnderman:
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{
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if (a_RelY < 250)
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{
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BLOCKTYPE BlockTop = a_Chunk->GetBlock(a_RelX, a_RelY + 2, a_RelZ);
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if (BlockTop == E_BLOCK_AIR)
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{
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BlockTop = a_Chunk->GetBlock(a_RelX, a_RelY + 3, a_RelZ);
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return (
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(TargetBlock == E_BLOCK_AIR) &&
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(BlockAbove == E_BLOCK_AIR) &&
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(BlockTop == E_BLOCK_AIR) &&
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(!cBlockInfo::IsTransparent(BlockBelow)) &&
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(SkyLight <= 7) &&
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(BlockLight <= 7)
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);
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}
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}
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break;
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}
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case mtSpider:
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{
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bool CanSpawn = true;
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bool HasFloor = false;
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for (int x = 0; x < 2; ++x)
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{
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for (int z = 0; z < 2; ++z)
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{
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CanSpawn = a_Chunk->UnboundedRelGetBlockType(a_RelX + x, a_RelY, a_RelZ + z, TargetBlock);
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CanSpawn = CanSpawn && (TargetBlock == E_BLOCK_AIR);
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if (!CanSpawn)
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{
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return false;
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}
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HasFloor = (
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HasFloor ||
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(
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a_Chunk->UnboundedRelGetBlockType(a_RelX + x, a_RelY - 1, a_RelZ + z, TargetBlock) &&
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!cBlockInfo::IsTransparent(TargetBlock)
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)
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);
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}
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}
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return CanSpawn && HasFloor && (SkyLight <= 7) && (BlockLight <= 7);
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}
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case mtCaveSpider:
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{
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return (
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(TargetBlock == E_BLOCK_AIR) &&
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(!cBlockInfo::IsTransparent(BlockBelow)) &&
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(SkyLight <= 7) &&
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(BlockLight <= 7) &&
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(Random.RandBool())
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);
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}
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case mtCreeper:
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case mtSkeleton:
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case mtZombie:
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{
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return (
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(TargetBlock == E_BLOCK_AIR) &&
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(BlockAbove == E_BLOCK_AIR) &&
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(!cBlockInfo::IsTransparent(BlockBelow)) &&
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(SkyLight <= 7) &&
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(BlockLight <= 7) &&
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(Random.RandBool())
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);
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}
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case mtMagmaCube:
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case mtSlime:
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{
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return (
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(TargetBlock == E_BLOCK_AIR) &&
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(BlockAbove == E_BLOCK_AIR) &&
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(!cBlockInfo::IsTransparent(BlockBelow)) &&
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(
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(a_RelY <= 40) || (a_Biome == biSwampland)
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)
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);
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}
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case mtGhast:
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case mtZombiePigman:
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{
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return (
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(TargetBlock == E_BLOCK_AIR) &&
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(BlockAbove == E_BLOCK_AIR) &&
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(!cBlockInfo::IsTransparent(BlockBelow)) &&
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(Random.RandBool(0.05))
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);
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}
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case mtWolf:
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{
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return (
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(TargetBlock == E_BLOCK_GRASS) &&
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(BlockAbove == E_BLOCK_AIR) &&
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(
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(a_Biome == biTaiga) ||
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(a_Biome == biTaigaHills) ||
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(a_Biome == biForest) ||
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(a_Biome == biForestHills) ||
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(a_Biome == biColdTaiga) ||
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(a_Biome == biColdTaigaHills) ||
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(a_Biome == biTaigaM) ||
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(a_Biome == biMegaTaiga) ||
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(a_Biome == biMegaTaigaHills)
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)
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);
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}
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case mtMooshroom:
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{
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return (
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(TargetBlock == E_BLOCK_AIR) &&
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(BlockAbove == E_BLOCK_AIR) &&
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(BlockBelow == E_BLOCK_MYCELIUM) &&
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(
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(a_Biome == biMushroomShore) ||
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(a_Biome == biMushroomIsland)
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)
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);
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}
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default:
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{
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LOGD("MG TODO: Write spawning rule for mob type %d", a_MobType);
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return false;
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}
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}
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return false;
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}
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cMonster * cMobSpawner::TryToSpawnHere(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_RelZ, EMCSBiome a_Biome, int & a_MaxPackSize)
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{
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cMonster * toReturn = nullptr;
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if (m_NewPack)
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{
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m_MobType = ChooseMobType(a_Biome);
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if (m_MobType == mtInvalidType)
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{
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return toReturn;
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}
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if (m_MobType == mtWolf)
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{
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a_MaxPackSize = 8;
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}
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else if (m_MobType == mtGhast)
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{
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a_MaxPackSize = 1;
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}
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m_NewPack = false;
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}
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// Make sure we are looking at the right chunk to spawn in
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a_Chunk = a_Chunk->GetRelNeighborChunkAdjustCoords(a_RelX, a_RelZ);
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if ((m_AllowedTypes.find(m_MobType) != m_AllowedTypes.end()) && CanSpawnHere(a_Chunk, a_RelX, a_RelY, a_RelZ, m_MobType, a_Biome))
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{
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cMonster * newMob = cMonster::NewMonsterFromType(m_MobType);
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if (newMob)
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{
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m_Spawned.insert(newMob);
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}
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toReturn = newMob;
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}
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return toReturn;
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}
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void cMobSpawner::NewPack()
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{
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m_NewPack = true;
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}
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cMobSpawner::tSpawnedContainer & cMobSpawner::getSpawned(void)
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{
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return m_Spawned;
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}
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bool cMobSpawner::CanSpawnAnything(void)
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{
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return !m_AllowedTypes.empty();
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}
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