001package net.minecraft.world.gen.feature;
002
003import java.util.Random;
004import net.minecraft.block.Block;
005import net.minecraft.util.MathHelper;
006import net.minecraft.world.World;
007
008public class WorldGenHugeTrees extends WorldGenerator
009{
010    /** The base height of the tree */
011    private final int baseHeight;
012
013    /** Sets the metadata for the wood blocks used */
014    private final int woodMetadata;
015
016    /** Sets the metadata for the leaves used in huge trees */
017    private final int leavesMetadata;
018
019    public WorldGenHugeTrees(boolean par1, int par2, int par3, int par4)
020    {
021        super(par1);
022        this.baseHeight = par2;
023        this.woodMetadata = par3;
024        this.leavesMetadata = par4;
025    }
026
027    public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
028    {
029        int var6 = par2Random.nextInt(3) + this.baseHeight;
030        boolean var7 = true;
031
032        if (par4 >= 1 && par4 + var6 + 1 <= 256)
033        {
034            int var8;
035            int var10;
036            int var11;
037            int var12;
038
039            for (var8 = par4; var8 <= par4 + 1 + var6; ++var8)
040            {
041                byte var9 = 2;
042
043                if (var8 == par4)
044                {
045                    var9 = 1;
046                }
047
048                if (var8 >= par4 + 1 + var6 - 2)
049                {
050                    var9 = 2;
051                }
052
053                for (var10 = par3 - var9; var10 <= par3 + var9 && var7; ++var10)
054                {
055                    for (var11 = par5 - var9; var11 <= par5 + var9 && var7; ++var11)
056                    {
057                        if (var8 >= 0 && var8 < 256)
058                        {
059                            var12 = par1World.getBlockId(var10, var8, var11);
060
061                            if (var12 != 0 && 
062                               (Block.blocksList[var12] != null && !Block.blocksList[var12].isLeaves(par1World, var10, var8, var11)) && 
063                               var12 != Block.grass.blockID && 
064                               var12 != Block.dirt.blockID && 
065                               (Block.blocksList[var12] != null && !Block.blocksList[var12].isWood(par1World, var10, var8, var11)) &&
066                               var12 != Block.sapling.blockID)
067                            {
068                                var7 = false;
069                            }
070                        }
071                        else
072                        {
073                            var7 = false;
074                        }
075                    }
076                }
077            }
078
079            if (!var7)
080            {
081                return false;
082            }
083            else
084            {
085                var8 = par1World.getBlockId(par3, par4 - 1, par5);
086
087                if ((var8 == Block.grass.blockID || var8 == Block.dirt.blockID) && par4 < 256 - var6 - 1)
088                {
089                    par1World.setBlock(par3, par4 - 1, par5, Block.dirt.blockID);
090                    par1World.setBlock(par3 + 1, par4 - 1, par5, Block.dirt.blockID);
091                    par1World.setBlock(par3, par4 - 1, par5 + 1, Block.dirt.blockID);
092                    par1World.setBlock(par3 + 1, par4 - 1, par5 + 1, Block.dirt.blockID);
093                    this.growLeaves(par1World, par3, par5, par4 + var6, 2, par2Random);
094
095                    for (int var14 = par4 + var6 - 2 - par2Random.nextInt(4); var14 > par4 + var6 / 2; var14 -= 2 + par2Random.nextInt(4))
096                    {
097                        float var15 = par2Random.nextFloat() * (float)Math.PI * 2.0F;
098                        var11 = par3 + (int)(0.5F + MathHelper.cos(var15) * 4.0F);
099                        var12 = par5 + (int)(0.5F + MathHelper.sin(var15) * 4.0F);
100                        this.growLeaves(par1World, var11, var12, var14, 0, par2Random);
101
102                        for (int var13 = 0; var13 < 5; ++var13)
103                        {
104                            var11 = par3 + (int)(1.5F + MathHelper.cos(var15) * (float)var13);
105                            var12 = par5 + (int)(1.5F + MathHelper.sin(var15) * (float)var13);
106                            this.setBlockAndMetadata(par1World, var11, var14 - 3 + var13 / 2, var12, Block.wood.blockID, this.woodMetadata);
107                        }
108                    }
109
110                    for (var10 = 0; var10 < var6; ++var10)
111                    {
112                        var11 = par1World.getBlockId(par3, par4 + var10, par5);
113
114                        if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3, par4 + var10, par5))
115                        {
116                            this.setBlockAndMetadata(par1World, par3, par4 + var10, par5, Block.wood.blockID, this.woodMetadata);
117
118                            if (var10 > 0)
119                            {
120                                if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 - 1, par4 + var10, par5))
121                                {
122                                    this.setBlockAndMetadata(par1World, par3 - 1, par4 + var10, par5, Block.vine.blockID, 8);
123                                }
124
125                                if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3, par4 + var10, par5 - 1))
126                                {
127                                    this.setBlockAndMetadata(par1World, par3, par4 + var10, par5 - 1, Block.vine.blockID, 1);
128                                }
129                            }
130                        }
131
132                        if (var10 < var6 - 1)
133                        {
134                            var11 = par1World.getBlockId(par3 + 1, par4 + var10, par5);
135
136                            if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3 + 1, par4 + var10, par5))
137                            {
138                                this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5, Block.wood.blockID, this.woodMetadata);
139
140                                if (var10 > 0)
141                                {
142                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 2, par4 + var10, par5))
143                                    {
144                                        this.setBlockAndMetadata(par1World, par3 + 2, par4 + var10, par5, Block.vine.blockID, 2);
145                                    }
146
147                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 1, par4 + var10, par5 - 1))
148                                    {
149                                        this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5 - 1, Block.vine.blockID, 1);
150                                    }
151                                }
152                            }
153
154                            var11 = par1World.getBlockId(par3 + 1, par4 + var10, par5 + 1);
155
156                            if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3 + 1, par4 + var10, par5 + 1))
157                            {
158                                this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5 + 1, Block.wood.blockID, this.woodMetadata);
159
160                                if (var10 > 0)
161                                {
162                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 2, par4 + var10, par5 + 1))
163                                    {
164                                        this.setBlockAndMetadata(par1World, par3 + 2, par4 + var10, par5 + 1, Block.vine.blockID, 2);
165                                    }
166
167                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 1, par4 + var10, par5 + 2))
168                                    {
169                                        this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5 + 2, Block.vine.blockID, 4);
170                                    }
171                                }
172                            }
173
174                            var11 = par1World.getBlockId(par3, par4 + var10, par5 + 1);
175
176                            if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3, par4 + var10, par5 + 1))
177                            {
178                                this.setBlockAndMetadata(par1World, par3, par4 + var10, par5 + 1, Block.wood.blockID, this.woodMetadata);
179
180                                if (var10 > 0)
181                                {
182                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 - 1, par4 + var10, par5 + 1))
183                                    {
184                                        this.setBlockAndMetadata(par1World, par3 - 1, par4 + var10, par5 + 1, Block.vine.blockID, 8);
185                                    }
186
187                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3, par4 + var10, par5 + 2))
188                                    {
189                                        this.setBlockAndMetadata(par1World, par3, par4 + var10, par5 + 2, Block.vine.blockID, 4);
190                                    }
191                                }
192                            }
193                        }
194                    }
195
196                    return true;
197                }
198                else
199                {
200                    return false;
201                }
202            }
203        }
204        else
205        {
206            return false;
207        }
208    }
209
210    private void growLeaves(World par1World, int par2, int par3, int par4, int par5, Random par6Random)
211    {
212        byte var7 = 2;
213
214        for (int var8 = par4 - var7; var8 <= par4; ++var8)
215        {
216            int var9 = var8 - par4;
217            int var10 = par5 + 1 - var9;
218
219            for (int var11 = par2 - var10; var11 <= par2 + var10 + 1; ++var11)
220            {
221                int var12 = var11 - par2;
222
223                for (int var13 = par3 - var10; var13 <= par3 + var10 + 1; ++var13)
224                {
225                    int var14 = var13 - par3;
226
227                    Block block = Block.blocksList[par1World.getBlockId(var11, var8, var13)];
228
229                    if ((var12 >= 0 || var14 >= 0 || var12 * var12 + var14 * var14 <= var10 * var10) && 
230                        (var12 <= 0 && var14 <= 0 || var12 * var12 + var14 * var14 <= (var10 + 1) * (var10 + 1)) && 
231                        (par6Random.nextInt(4) != 0 || var12 * var12 + var14 * var14 <= (var10 - 1) * (var10 - 1)) && 
232                        (block == null || block.canBeReplacedByLeaves(par1World, var11, var8, var13)))
233                    {
234                        this.setBlockAndMetadata(par1World, var11, var8, var13, Block.leaves.blockID, this.leavesMetadata);
235                    }
236                }
237            }
238        }
239    }
240}