001 package net.minecraft.src;
002
003 import java.util.Random;
004
005 public class WorldGenHugeTrees extends WorldGenerator
006 {
007 /** The base height of the tree */
008 private final int baseHeight;
009
010 /** Sets the metadata for the wood blocks used */
011 private final int woodMetadata;
012
013 /** Sets the metadata for the leaves used in huge trees */
014 private final int leavesMetadata;
015
016 public WorldGenHugeTrees(boolean par1, int par2, int par3, int par4)
017 {
018 super(par1);
019 this.baseHeight = par2;
020 this.woodMetadata = par3;
021 this.leavesMetadata = par4;
022 }
023
024 public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
025 {
026 int var6 = par2Random.nextInt(3) + this.baseHeight;
027 boolean var7 = true;
028
029 if (par4 >= 1 && par4 + var6 + 1 <= 256)
030 {
031 int var8;
032 int var10;
033 int var11;
034 int var12;
035
036 for (var8 = par4; var8 <= par4 + 1 + var6; ++var8)
037 {
038 byte var9 = 2;
039
040 if (var8 == par4)
041 {
042 var9 = 1;
043 }
044
045 if (var8 >= par4 + 1 + var6 - 2)
046 {
047 var9 = 2;
048 }
049
050 for (var10 = par3 - var9; var10 <= par3 + var9 && var7; ++var10)
051 {
052 for (var11 = par5 - var9; var11 <= par5 + var9 && var7; ++var11)
053 {
054 if (var8 >= 0 && var8 < 256)
055 {
056 var12 = par1World.getBlockId(var10, var8, var11);
057
058 if (var12 != 0 &&
059 (Block.blocksList[var12] != null && !Block.blocksList[var12].isLeaves(par1World, var10, var8, var11)) &&
060 var12 != Block.grass.blockID &&
061 var12 != Block.dirt.blockID &&
062 (Block.blocksList[var12] != null && !Block.blocksList[var12].isWood(par1World, var10, var8, var11)) &&
063 var12 != Block.sapling.blockID)
064 {
065 var7 = false;
066 }
067 }
068 else
069 {
070 var7 = false;
071 }
072 }
073 }
074 }
075
076 if (!var7)
077 {
078 return false;
079 }
080 else
081 {
082 var8 = par1World.getBlockId(par3, par4 - 1, par5);
083
084 if ((var8 == Block.grass.blockID || var8 == Block.dirt.blockID) && par4 < 256 - var6 - 1)
085 {
086 par1World.setBlock(par3, par4 - 1, par5, Block.dirt.blockID);
087 par1World.setBlock(par3 + 1, par4 - 1, par5, Block.dirt.blockID);
088 par1World.setBlock(par3, par4 - 1, par5 + 1, Block.dirt.blockID);
089 par1World.setBlock(par3 + 1, par4 - 1, par5 + 1, Block.dirt.blockID);
090 this.growLeaves(par1World, par3, par5, par4 + var6, 2, par2Random);
091
092 for (int var14 = par4 + var6 - 2 - par2Random.nextInt(4); var14 > par4 + var6 / 2; var14 -= 2 + par2Random.nextInt(4))
093 {
094 float var15 = par2Random.nextFloat() * (float)Math.PI * 2.0F;
095 var11 = par3 + (int)(0.5F + MathHelper.cos(var15) * 4.0F);
096 var12 = par5 + (int)(0.5F + MathHelper.sin(var15) * 4.0F);
097 this.growLeaves(par1World, var11, var12, var14, 0, par2Random);
098
099 for (int var13 = 0; var13 < 5; ++var13)
100 {
101 var11 = par3 + (int)(1.5F + MathHelper.cos(var15) * (float)var13);
102 var12 = par5 + (int)(1.5F + MathHelper.sin(var15) * (float)var13);
103 this.setBlockAndMetadata(par1World, var11, var14 - 3 + var13 / 2, var12, Block.wood.blockID, this.woodMetadata);
104 }
105 }
106
107 for (var10 = 0; var10 < var6; ++var10)
108 {
109 var11 = par1World.getBlockId(par3, par4 + var10, par5);
110
111 if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3, par4 + var10, par5))
112 {
113 this.setBlockAndMetadata(par1World, par3, par4 + var10, par5, Block.wood.blockID, this.woodMetadata);
114
115 if (var10 > 0)
116 {
117 if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 - 1, par4 + var10, par5))
118 {
119 this.setBlockAndMetadata(par1World, par3 - 1, par4 + var10, par5, Block.vine.blockID, 8);
120 }
121
122 if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3, par4 + var10, par5 - 1))
123 {
124 this.setBlockAndMetadata(par1World, par3, par4 + var10, par5 - 1, Block.vine.blockID, 1);
125 }
126 }
127 }
128
129 if (var10 < var6 - 1)
130 {
131 var11 = par1World.getBlockId(par3 + 1, par4 + var10, par5);
132
133 if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3 + 1, par4 + var10, par5))
134 {
135 this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5, Block.wood.blockID, this.woodMetadata);
136
137 if (var10 > 0)
138 {
139 if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 2, par4 + var10, par5))
140 {
141 this.setBlockAndMetadata(par1World, par3 + 2, par4 + var10, par5, Block.vine.blockID, 2);
142 }
143
144 if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 1, par4 + var10, par5 - 1))
145 {
146 this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5 - 1, Block.vine.blockID, 1);
147 }
148 }
149 }
150
151 var11 = par1World.getBlockId(par3 + 1, par4 + var10, par5 + 1);
152
153 if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3 + 1, par4 + var10, par5 + 1))
154 {
155 this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5 + 1, Block.wood.blockID, this.woodMetadata);
156
157 if (var10 > 0)
158 {
159 if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 2, par4 + var10, par5 + 1))
160 {
161 this.setBlockAndMetadata(par1World, par3 + 2, par4 + var10, par5 + 1, Block.vine.blockID, 2);
162 }
163
164 if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 1, par4 + var10, par5 + 2))
165 {
166 this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5 + 2, Block.vine.blockID, 4);
167 }
168 }
169 }
170
171 var11 = par1World.getBlockId(par3, par4 + var10, par5 + 1);
172
173 if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3, par4 + var10, par5 + 1))
174 {
175 this.setBlockAndMetadata(par1World, par3, par4 + var10, par5 + 1, Block.wood.blockID, this.woodMetadata);
176
177 if (var10 > 0)
178 {
179 if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 - 1, par4 + var10, par5 + 1))
180 {
181 this.setBlockAndMetadata(par1World, par3 - 1, par4 + var10, par5 + 1, Block.vine.blockID, 8);
182 }
183
184 if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3, par4 + var10, par5 + 2))
185 {
186 this.setBlockAndMetadata(par1World, par3, par4 + var10, par5 + 2, Block.vine.blockID, 4);
187 }
188 }
189 }
190 }
191 }
192
193 return true;
194 }
195 else
196 {
197 return false;
198 }
199 }
200 }
201 else
202 {
203 return false;
204 }
205 }
206
207 private void growLeaves(World par1World, int par2, int par3, int par4, int par5, Random par6Random)
208 {
209 byte var7 = 2;
210
211 for (int var8 = par4 - var7; var8 <= par4; ++var8)
212 {
213 int var9 = var8 - par4;
214 int var10 = par5 + 1 - var9;
215
216 for (int var11 = par2 - var10; var11 <= par2 + var10 + 1; ++var11)
217 {
218 int var12 = var11 - par2;
219
220 for (int var13 = par3 - var10; var13 <= par3 + var10 + 1; ++var13)
221 {
222 int var14 = var13 - par3;
223
224 Block block = Block.blocksList[par1World.getBlockId(var11, var8, var13)];
225
226 if ((var12 >= 0 || var14 >= 0 || var12 * var12 + var14 * var14 <= var10 * var10) &&
227 (var12 <= 0 && var14 <= 0 || var12 * var12 + var14 * var14 <= (var10 + 1) * (var10 + 1)) &&
228 (par6Random.nextInt(4) != 0 || var12 * var12 + var14 * var14 <= (var10 - 1) * (var10 - 1)) &&
229 (block == null || block.canBeReplacedByLeaves(par1World, var11, var8, var13)))
230 {
231 this.setBlockAndMetadata(par1World, var11, var8, var13, Block.leaves.blockID, this.leavesMetadata);
232 }
233 }
234 }
235 }
236 }
237 }