001 package net.minecraft.world.gen.structure;
002
003 import java.util.ArrayList;
004 import java.util.Arrays;
005 import java.util.Collections;
006 import java.util.Iterator;
007 import java.util.List;
008 import java.util.Map;
009 import java.util.Random;
010 import java.util.Map.Entry;
011 import net.minecraft.util.MathHelper;
012 import net.minecraft.world.ChunkCoordIntPair;
013 import net.minecraft.world.ChunkPosition;
014 import net.minecraft.world.biome.BiomeGenBase;
015
016 public class MapGenStronghold extends MapGenStructure
017 {
018 public static ArrayList<BiomeGenBase> allowedBiomes = new ArrayList<BiomeGenBase>(Arrays.asList(BiomeGenBase.desert, BiomeGenBase.forest, BiomeGenBase.extremeHills, BiomeGenBase.swampland, BiomeGenBase.taiga, BiomeGenBase.icePlains, BiomeGenBase.iceMountains, BiomeGenBase.desertHills, BiomeGenBase.forestHills, BiomeGenBase.extremeHillsEdge, BiomeGenBase.jungle, BiomeGenBase.jungleHills));
019 private BiomeGenBase[] allowedBiomeGenBases;
020
021 /**
022 * is spawned false and set true once the defined BiomeGenBases were compared with the present ones
023 */
024 private boolean ranBiomeCheck;
025 private ChunkCoordIntPair[] structureCoords;
026 private double field_82671_h;
027 private int field_82672_i;
028
029 public MapGenStronghold()
030 {
031 this.allowedBiomeGenBases = allowedBiomes.toArray(new BiomeGenBase[0]);
032 this.structureCoords = new ChunkCoordIntPair[3];
033 this.field_82671_h = 32.0D;
034 this.field_82672_i = 3;
035 }
036
037 public MapGenStronghold(Map par1Map)
038 {
039 this.allowedBiomeGenBases = allowedBiomes.toArray(new BiomeGenBase[0]);
040 this.structureCoords = new ChunkCoordIntPair[3];
041 this.field_82671_h = 32.0D;
042 this.field_82672_i = 3;
043 Iterator var2 = par1Map.entrySet().iterator();
044
045 while (var2.hasNext())
046 {
047 Entry var3 = (Entry)var2.next();
048
049 if (((String)var3.getKey()).equals("distance"))
050 {
051 this.field_82671_h = MathHelper.func_82713_a((String)var3.getValue(), this.field_82671_h, 1.0D);
052 }
053 else if (((String)var3.getKey()).equals("count"))
054 {
055 this.structureCoords = new ChunkCoordIntPair[MathHelper.parseIntWithDefaultAndMax((String)var3.getValue(), this.structureCoords.length, 1)];
056 }
057 else if (((String)var3.getKey()).equals("spread"))
058 {
059 this.field_82672_i = MathHelper.parseIntWithDefaultAndMax((String)var3.getValue(), this.field_82672_i, 1);
060 }
061 }
062 }
063
064 protected boolean canSpawnStructureAtCoords(int par1, int par2)
065 {
066 if (!this.ranBiomeCheck)
067 {
068 Random var3 = new Random();
069 var3.setSeed(this.worldObj.getSeed());
070 double var4 = var3.nextDouble() * Math.PI * 2.0D;
071 int var6 = 1;
072
073 for (int var7 = 0; var7 < this.structureCoords.length; ++var7)
074 {
075 double var8 = (1.25D * (double)var6 + var3.nextDouble()) * this.field_82671_h * (double)var6;
076 int var10 = (int)Math.round(Math.cos(var4) * var8);
077 int var11 = (int)Math.round(Math.sin(var4) * var8);
078 ArrayList var12 = new ArrayList();
079 Collections.addAll(var12, this.allowedBiomeGenBases);
080 ChunkPosition var13 = this.worldObj.getWorldChunkManager().findBiomePosition((var10 << 4) + 8, (var11 << 4) + 8, 112, var12, var3);
081
082 if (var13 != null)
083 {
084 var10 = var13.x >> 4;
085 var11 = var13.z >> 4;
086 }
087
088 this.structureCoords[var7] = new ChunkCoordIntPair(var10, var11);
089 var4 += (Math.PI * 2D) * (double)var6 / (double)this.field_82672_i;
090
091 if (var7 == this.field_82672_i)
092 {
093 var6 += 2 + var3.nextInt(5);
094 this.field_82672_i += 1 + var3.nextInt(2);
095 }
096 }
097
098 this.ranBiomeCheck = true;
099 }
100
101 ChunkCoordIntPair[] var14 = this.structureCoords;
102 int var15 = var14.length;
103
104 for (int var5 = 0; var5 < var15; ++var5)
105 {
106 ChunkCoordIntPair var16 = var14[var5];
107
108 if (par1 == var16.chunkXPos && par2 == var16.chunkZPos)
109 {
110 return true;
111 }
112 }
113
114 return false;
115 }
116
117 /**
118 * Returns a list of other locations at which the structure generation has been run, or null if not relevant to this
119 * structure generator.
120 */
121 protected List getCoordList()
122 {
123 ArrayList var1 = new ArrayList();
124 ChunkCoordIntPair[] var2 = this.structureCoords;
125 int var3 = var2.length;
126
127 for (int var4 = 0; var4 < var3; ++var4)
128 {
129 ChunkCoordIntPair var5 = var2[var4];
130
131 if (var5 != null)
132 {
133 var1.add(var5.getChunkPosition(64));
134 }
135 }
136
137 return var1;
138 }
139
140 protected StructureStart getStructureStart(int par1, int par2)
141 {
142 StructureStrongholdStart var3;
143
144 for (var3 = new StructureStrongholdStart(this.worldObj, this.rand, par1, par2); var3.getComponents().isEmpty() || ((ComponentStrongholdStairs2)var3.getComponents().get(0)).strongholdPortalRoom == null; var3 = new StructureStrongholdStart(this.worldObj, this.rand, par1, par2))
145 {
146 ;
147 }
148
149 return var3;
150 }
151 }