001 package net.minecraft.src;
002
003 import java.util.ArrayList;
004 import java.util.Collections;
005 import java.util.Iterator;
006 import java.util.List;
007 import java.util.Map;
008 import java.util.Random;
009 import java.util.Map.Entry;
010
011 public class MapGenStronghold extends MapGenStructure
012 {
013 private BiomeGenBase[] allowedBiomeGenBases;
014
015 /**
016 * is spawned false and set true once the defined BiomeGenBases were compared with the present ones
017 */
018 private boolean ranBiomeCheck;
019 private ChunkCoordIntPair[] structureCoords;
020 private double field_82671_h;
021 private int field_82672_i;
022
023 public MapGenStronghold()
024 {
025 this.allowedBiomeGenBases = new BiomeGenBase[] {BiomeGenBase.desert, BiomeGenBase.forest, BiomeGenBase.extremeHills, BiomeGenBase.swampland, BiomeGenBase.taiga, BiomeGenBase.icePlains, BiomeGenBase.iceMountains, BiomeGenBase.desertHills, BiomeGenBase.forestHills, BiomeGenBase.extremeHillsEdge, BiomeGenBase.jungle, BiomeGenBase.jungleHills};
026 this.structureCoords = new ChunkCoordIntPair[3];
027 this.field_82671_h = 32.0D;
028 this.field_82672_i = 3;
029 }
030
031 public MapGenStronghold(Map par1Map)
032 {
033 this.allowedBiomeGenBases = new BiomeGenBase[] {BiomeGenBase.desert, BiomeGenBase.forest, BiomeGenBase.extremeHills, BiomeGenBase.swampland, BiomeGenBase.taiga, BiomeGenBase.icePlains, BiomeGenBase.iceMountains, BiomeGenBase.desertHills, BiomeGenBase.forestHills, BiomeGenBase.extremeHillsEdge, BiomeGenBase.jungle, BiomeGenBase.jungleHills};
034 this.structureCoords = new ChunkCoordIntPair[3];
035 this.field_82671_h = 32.0D;
036 this.field_82672_i = 3;
037 Iterator var2 = par1Map.entrySet().iterator();
038
039 while (var2.hasNext())
040 {
041 Entry var3 = (Entry)var2.next();
042
043 if (((String)var3.getKey()).equals("distance"))
044 {
045 this.field_82671_h = MathHelper.func_82713_a((String)var3.getValue(), this.field_82671_h, 1.0D);
046 }
047 else if (((String)var3.getKey()).equals("count"))
048 {
049 this.structureCoords = new ChunkCoordIntPair[MathHelper.func_82714_a((String)var3.getValue(), this.structureCoords.length, 1)];
050 }
051 else if (((String)var3.getKey()).equals("spread"))
052 {
053 this.field_82672_i = MathHelper.func_82714_a((String)var3.getValue(), this.field_82672_i, 1);
054 }
055 }
056 }
057
058 protected boolean canSpawnStructureAtCoords(int par1, int par2)
059 {
060 if (!this.ranBiomeCheck)
061 {
062 Random var3 = new Random();
063 var3.setSeed(this.worldObj.getSeed());
064 double var4 = var3.nextDouble() * Math.PI * 2.0D;
065 int var6 = 1;
066
067 for (int var7 = 0; var7 < this.structureCoords.length; ++var7)
068 {
069 double var8 = (1.25D * (double)var6 + var3.nextDouble()) * this.field_82671_h * (double)var6;
070 int var10 = (int)Math.round(Math.cos(var4) * var8);
071 int var11 = (int)Math.round(Math.sin(var4) * var8);
072 ArrayList var12 = new ArrayList();
073 Collections.addAll(var12, this.allowedBiomeGenBases);
074 ChunkPosition var13 = this.worldObj.getWorldChunkManager().findBiomePosition((var10 << 4) + 8, (var11 << 4) + 8, 112, var12, var3);
075
076 if (var13 != null)
077 {
078 var10 = var13.x >> 4;
079 var11 = var13.z >> 4;
080 }
081
082 this.structureCoords[var7] = new ChunkCoordIntPair(var10, var11);
083 var4 += (Math.PI * 2D) * (double)var6 / (double)this.field_82672_i;
084
085 if (var7 == this.field_82672_i)
086 {
087 var6 += 2 + var3.nextInt(5);
088 this.field_82672_i += 1 + var3.nextInt(2);
089 }
090 }
091
092 this.ranBiomeCheck = true;
093 }
094
095 ChunkCoordIntPair[] var14 = this.structureCoords;
096 int var15 = var14.length;
097
098 for (int var5 = 0; var5 < var15; ++var5)
099 {
100 ChunkCoordIntPair var16 = var14[var5];
101
102 if (par1 == var16.chunkXPos && par2 == var16.chunkZPos)
103 {
104 return true;
105 }
106 }
107
108 return false;
109 }
110
111 /**
112 * Returns a list of other locations at which the structure generation has been run, or null if not relevant to this
113 * structure generator.
114 */
115 protected List getCoordList()
116 {
117 ArrayList var1 = new ArrayList();
118 ChunkCoordIntPair[] var2 = this.structureCoords;
119 int var3 = var2.length;
120
121 for (int var4 = 0; var4 < var3; ++var4)
122 {
123 ChunkCoordIntPair var5 = var2[var4];
124
125 if (var5 != null)
126 {
127 var1.add(var5.getChunkPosition(64));
128 }
129 }
130
131 return var1;
132 }
133
134 protected StructureStart getStructureStart(int par1, int par2)
135 {
136 StructureStrongholdStart var3;
137
138 for (var3 = new StructureStrongholdStart(this.worldObj, this.rand, par1, par2); var3.getComponents().isEmpty() || ((ComponentStrongholdStairs2)var3.getComponents().get(0)).portalRoom == null; var3 = new StructureStrongholdStart(this.worldObj, this.rand, par1, par2))
139 {
140 ;
141 }
142
143 return var3;
144 }
145 }