package net.minecraft.world.gen.structure;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.concurrent.Callable;
import net.minecraft.block.Block;
import net.minecraft.crash.CrashReport;
import net.minecraft.crash.CrashReportCategory;
import net.minecraft.nbt.NBTBase;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.ReportedException;
import net.minecraft.world.ChunkCoordIntPair;
import net.minecraft.world.ChunkPosition;
import net.minecraft.world.World;
import net.minecraft.world.gen.MapGenBase;
public abstract class MapGenStructure extends MapGenBase
{
private MapGenStructureData field_143029_e;
/**
* Used to store a list of all structures that have been recursively generated. Used so that during recursive
* generation, the structure generator can avoid generating structures that intersect ones that have already been
* placed.
*/
protected Map structureMap = new HashMap();
private static final String __OBFID = "CL_00000505";
public abstract String getStructureName();
protected final void func_151538_a(World worldIn, final int p_151538_2_, final int p_151538_3_, int p_151538_4_, int p_151538_5_, Block[] p_151538_6_)
{
this.func_143027_a(worldIn);
if (!this.structureMap.containsKey(Long.valueOf(ChunkCoordIntPair.chunkXZ2Int(p_151538_2_, p_151538_3_))))
{
this.rand.nextInt();
try
{
if (this.canSpawnStructureAtCoords(p_151538_2_, p_151538_3_))
{
StructureStart structurestart = this.getStructureStart(p_151538_2_, p_151538_3_);
this.structureMap.put(Long.valueOf(ChunkCoordIntPair.chunkXZ2Int(p_151538_2_, p_151538_3_)), structurestart);
this.func_143026_a(p_151538_2_, p_151538_3_, structurestart);
}
}
catch (Throwable throwable)
{
CrashReport crashreport = CrashReport.makeCrashReport(throwable, "Exception preparing structure feature");
CrashReportCategory crashreportcategory = crashreport.makeCategory("Feature being prepared");
crashreportcategory.addCrashSectionCallable("Is feature chunk", new Callable()
{
private static final String __OBFID = "CL_00000506";
public String call()
{
return MapGenStructure.this.canSpawnStructureAtCoords(p_151538_2_, p_151538_3_) ? "True" : "False";
}
});
crashreportcategory.addCrashSection("Chunk location", String.format("%d,%d", new Object[] {Integer.valueOf(p_151538_2_), Integer.valueOf(p_151538_3_)}));
crashreportcategory.addCrashSectionCallable("Chunk pos hash", new Callable()
{
private static final String __OBFID = "CL_00000507";
public String call()
{
return String.valueOf(ChunkCoordIntPair.chunkXZ2Int(p_151538_2_, p_151538_3_));
}
});
crashreportcategory.addCrashSectionCallable("Structure type", new Callable()
{
private static final String __OBFID = "CL_00000508";
public String call()
{
return MapGenStructure.this.getClass().getCanonicalName();
}
});
throw new ReportedException(crashreport);
}
}
}
/**
* Generates structures in specified chunk next to existing structures. Does *not* generate StructureStarts.
*/
public boolean generateStructuresInChunk(World p_75051_1_, Random p_75051_2_, int p_75051_3_, int p_75051_4_)
{
this.func_143027_a(p_75051_1_);
int k = (p_75051_3_ << 4) + 8;
int l = (p_75051_4_ << 4) + 8;
boolean flag = false;
Iterator iterator = this.structureMap.values().iterator();
while (iterator.hasNext())
{
StructureStart structurestart = (StructureStart)iterator.next();
if (structurestart.isSizeableStructure() && structurestart.getBoundingBox().intersectsWith(k, l, k + 15, l + 15))
{
structurestart.generateStructure(p_75051_1_, p_75051_2_, new StructureBoundingBox(k, l, k + 15, l + 15));
flag = true;
this.func_143026_a(structurestart.func_143019_e(), structurestart.func_143018_f(), structurestart);
}
}
return flag;
}
/**
* Returns true if the structure generator has generated a structure located at the given position tuple.
*/
public boolean hasStructureAt(int p_75048_1_, int p_75048_2_, int p_75048_3_)
{
this.func_143027_a(this.worldObj);
return this.func_143028_c(p_75048_1_, p_75048_2_, p_75048_3_) != null;
}
protected StructureStart func_143028_c(int p_143028_1_, int p_143028_2_, int p_143028_3_)
{
Iterator iterator = this.structureMap.values().iterator();
while (iterator.hasNext())
{
StructureStart structurestart = (StructureStart)iterator.next();
if (structurestart.isSizeableStructure() && structurestart.getBoundingBox().intersectsWith(p_143028_1_, p_143028_3_, p_143028_1_, p_143028_3_))
{
Iterator iterator1 = structurestart.getComponents().iterator();
while (iterator1.hasNext())
{
StructureComponent structurecomponent = (StructureComponent)iterator1.next();
if (structurecomponent.getBoundingBox().isVecInside(p_143028_1_, p_143028_2_, p_143028_3_))
{
return structurestart;
}
}
}
}
return null;
}
public boolean func_142038_b(int p_142038_1_, int p_142038_2_, int p_142038_3_)
{
this.func_143027_a(this.worldObj);
Iterator iterator = this.structureMap.values().iterator();
StructureStart structurestart;
do
{
if (!iterator.hasNext())
{
return false;
}
structurestart = (StructureStart)iterator.next();
}
while (!structurestart.isSizeableStructure());
return structurestart.getBoundingBox().intersectsWith(p_142038_1_, p_142038_3_, p_142038_1_, p_142038_3_);
}
public ChunkPosition getNearestInstance(World p_151545_1_, int p_151545_2_, int p_151545_3_, int p_151545_4_)
{
this.worldObj = p_151545_1_;
this.func_143027_a(p_151545_1_);
this.rand.setSeed(p_151545_1_.getSeed());
long l = this.rand.nextLong();
long i1 = this.rand.nextLong();
long j1 = (long)(p_151545_2_ >> 4) * l;
long k1 = (long)(p_151545_4_ >> 4) * i1;
this.rand.setSeed(j1 ^ k1 ^ p_151545_1_.getSeed());
this.func_151538_a(p_151545_1_, p_151545_2_ >> 4, p_151545_4_ >> 4, 0, 0, (Block[])null);
double d0 = Double.MAX_VALUE;
ChunkPosition chunkposition = null;
Iterator iterator = this.structureMap.values().iterator();
ChunkPosition chunkposition1;
int l1;
int i2;
int j2;
double d1;
while (iterator.hasNext())
{
StructureStart structurestart = (StructureStart)iterator.next();
if (structurestart.isSizeableStructure())
{
StructureComponent structurecomponent = (StructureComponent)structurestart.getComponents().get(0);
chunkposition1 = structurecomponent.func_151553_a();
l1 = chunkposition1.chunkPosX - p_151545_2_;
i2 = chunkposition1.chunkPosY - p_151545_3_;
j2 = chunkposition1.chunkPosZ - p_151545_4_;
d1 = (double)(l1 * l1 + i2 * i2 + j2 * j2);
if (d1 < d0)
{
d0 = d1;
chunkposition = chunkposition1;
}
}
}
if (chunkposition != null)
{
return chunkposition;
}
else
{
List list = this.getCoordList();
if (list != null)
{
ChunkPosition chunkposition2 = null;
Iterator iterator1 = list.iterator();
while (iterator1.hasNext())
{
chunkposition1 = (ChunkPosition)iterator1.next();
l1 = chunkposition1.chunkPosX - p_151545_2_;
i2 = chunkposition1.chunkPosY - p_151545_3_;
j2 = chunkposition1.chunkPosZ - p_151545_4_;
d1 = (double)(l1 * l1 + i2 * i2 + j2 * j2);
if (d1 < d0)
{
d0 = d1;
chunkposition2 = chunkposition1;
}
}
return chunkposition2;
}
else
{
return null;
}
}
}
/**
* Returns a list of other locations at which the structure generation has been run, or null if not relevant to this
* structure generator.
*/
protected List getCoordList()
{
return null;
}
private void func_143027_a(World p_143027_1_)
{
if (this.field_143029_e == null)
{
this.field_143029_e = (MapGenStructureData)p_143027_1_.perWorldStorage.loadData(MapGenStructureData.class, this.getStructureName());
if (this.field_143029_e == null)
{
this.field_143029_e = new MapGenStructureData(this.getStructureName());
p_143027_1_.perWorldStorage.setData(this.getStructureName(), this.field_143029_e);
}
else
{
NBTTagCompound nbttagcompound = this.field_143029_e.func_143041_a();
Iterator iterator = nbttagcompound.getKeySet().iterator();
while (iterator.hasNext())
{
String s = (String)iterator.next();
NBTBase nbtbase = nbttagcompound.getTag(s);
if (nbtbase.getId() == 10)
{
NBTTagCompound nbttagcompound1 = (NBTTagCompound)nbtbase;
if (nbttagcompound1.hasKey("ChunkX") && nbttagcompound1.hasKey("ChunkZ"))
{
int i = nbttagcompound1.getInteger("ChunkX");
int j = nbttagcompound1.getInteger("ChunkZ");
StructureStart structurestart = MapGenStructureIO.func_143035_a(nbttagcompound1, p_143027_1_);
if (structurestart != null)
{
this.structureMap.put(Long.valueOf(ChunkCoordIntPair.chunkXZ2Int(i, j)), structurestart);
}
}
}
}
}
}
}
private void func_143026_a(int p_143026_1_, int p_143026_2_, StructureStart p_143026_3_)
{
this.field_143029_e.func_143043_a(p_143026_3_.func_143021_a(p_143026_1_, p_143026_2_), p_143026_1_, p_143026_2_);
this.field_143029_e.markDirty();
}
protected abstract boolean canSpawnStructureAtCoords(int p_75047_1_, int p_75047_2_);
protected abstract StructureStart getStructureStart(int p_75049_1_, int p_75049_2_);
}