001 package net.minecraft.src;
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
012 public class MapGenStronghold extends MapGenStructure
013 {
014 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));
015 private BiomeGenBase[] allowedBiomeGenBases;
016
017 /**
018 * is spawned false and set true once the defined BiomeGenBases were compared with the present ones
019 */
020 private boolean ranBiomeCheck;
021 private ChunkCoordIntPair[] structureCoords;
022 private double field_82671_h;
023 private int field_82672_i;
024
025 public MapGenStronghold()
026 {
027 this.allowedBiomeGenBases = allowedBiomes.toArray(new BiomeGenBase[0]);
028 this.structureCoords = new ChunkCoordIntPair[3];
029 this.field_82671_h = 32.0D;
030 this.field_82672_i = 3;
031 }
032
033 public MapGenStronghold(Map par1Map)
034 {
035 this.allowedBiomeGenBases = allowedBiomes.toArray(new BiomeGenBase[0]);
036 this.structureCoords = new ChunkCoordIntPair[3];
037 this.field_82671_h = 32.0D;
038 this.field_82672_i = 3;
039 Iterator var2 = par1Map.entrySet().iterator();
040
041 while (var2.hasNext())
042 {
043 Entry var3 = (Entry)var2.next();
044
045 if (((String)var3.getKey()).equals("distance"))
046 {
047 this.field_82671_h = MathHelper.func_82713_a((String)var3.getValue(), this.field_82671_h, 1.0D);
048 }
049 else if (((String)var3.getKey()).equals("count"))
050 {
051 this.structureCoords = new ChunkCoordIntPair[MathHelper.func_82714_a((String)var3.getValue(), this.structureCoords.length, 1)];
052 }
053 else if (((String)var3.getKey()).equals("spread"))
054 {
055 this.field_82672_i = MathHelper.func_82714_a((String)var3.getValue(), this.field_82672_i, 1);
056 }
057 }
058 }
059
060 protected boolean canSpawnStructureAtCoords(int par1, int par2)
061 {
062 if (!this.ranBiomeCheck)
063 {
064 Random var3 = new Random();
065 var3.setSeed(this.worldObj.getSeed());
066 double var4 = var3.nextDouble() * Math.PI * 2.0D;
067 int var6 = 1;
068
069 for (int var7 = 0; var7 < this.structureCoords.length; ++var7)
070 {
071 double var8 = (1.25D * (double)var6 + var3.nextDouble()) * this.field_82671_h * (double)var6;
072 int var10 = (int)Math.round(Math.cos(var4) * var8);
073 int var11 = (int)Math.round(Math.sin(var4) * var8);
074 ArrayList var12 = new ArrayList();
075 Collections.addAll(var12, this.allowedBiomeGenBases);
076 ChunkPosition var13 = this.worldObj.getWorldChunkManager().findBiomePosition((var10 << 4) + 8, (var11 << 4) + 8, 112, var12, var3);
077
078 if (var13 != null)
079 {
080 var10 = var13.x >> 4;
081 var11 = var13.z >> 4;
082 }
083
084 this.structureCoords[var7] = new ChunkCoordIntPair(var10, var11);
085 var4 += (Math.PI * 2D) * (double)var6 / (double)this.field_82672_i;
086
087 if (var7 == this.field_82672_i)
088 {
089 var6 += 2 + var3.nextInt(5);
090 this.field_82672_i += 1 + var3.nextInt(2);
091 }
092 }
093
094 this.ranBiomeCheck = true;
095 }
096
097 ChunkCoordIntPair[] var14 = this.structureCoords;
098 int var15 = var14.length;
099
100 for (int var5 = 0; var5 < var15; ++var5)
101 {
102 ChunkCoordIntPair var16 = var14[var5];
103
104 if (par1 == var16.chunkXPos && par2 == var16.chunkZPos)
105 {
106 return true;
107 }
108 }
109
110 return false;
111 }
112
113 /**
114 * Returns a list of other locations at which the structure generation has been run, or null if not relevant to this
115 * structure generator.
116 */
117 protected List getCoordList()
118 {
119 ArrayList var1 = new ArrayList();
120 ChunkCoordIntPair[] var2 = this.structureCoords;
121 int var3 = var2.length;
122
123 for (int var4 = 0; var4 < var3; ++var4)
124 {
125 ChunkCoordIntPair var5 = var2[var4];
126
127 if (var5 != null)
128 {
129 var1.add(var5.getChunkPosition(64));
130 }
131 }
132
133 return var1;
134 }
135
136 protected StructureStart getStructureStart(int par1, int par2)
137 {
138 StructureStrongholdStart var3;
139
140 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))
141 {
142 ;
143 }
144
145 return var3;
146 }
147 }