001package net.minecraft.world.gen.feature;
002
003import java.util.Random;
004import net.minecraft.block.Block;
005import net.minecraft.block.BlockSapling;
006import net.minecraft.util.MathHelper;
007import net.minecraft.world.World;
008import net.minecraftforge.common.ForgeDirection;
009
010public class WorldGenHugeTrees extends WorldGenerator
011{
012    /** The base height of the tree */
013    private final int baseHeight;
014
015    /** Sets the metadata for the wood blocks used */
016    private final int woodMetadata;
017
018    /** Sets the metadata for the leaves used in huge trees */
019    private final int leavesMetadata;
020
021    public WorldGenHugeTrees(boolean par1, int par2, int par3, int par4)
022    {
023        super(par1);
024        this.baseHeight = par2;
025        this.woodMetadata = par3;
026        this.leavesMetadata = par4;
027    }
028
029    public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
030    {
031        int var6 = par2Random.nextInt(3) + this.baseHeight;
032        boolean var7 = true;
033
034        if (par4 >= 1 && par4 + var6 + 1 <= 256)
035        {
036            int var8;
037            int var10;
038            int var11;
039            int var12;
040
041            for (var8 = par4; var8 <= par4 + 1 + var6; ++var8)
042            {
043                byte var9 = 2;
044
045                if (var8 == par4)
046                {
047                    var9 = 1;
048                }
049
050                if (var8 >= par4 + 1 + var6 - 2)
051                {
052                    var9 = 2;
053                }
054
055                for (var10 = par3 - var9; var10 <= par3 + var9 && var7; ++var10)
056                {
057                    for (var11 = par5 - var9; var11 <= par5 + var9 && var7; ++var11)
058                    {
059                        if (var8 >= 0 && var8 < 256)
060                        {
061                            var12 = par1World.getBlockId(var10, var8, var11);
062                            Block block = Block.blocksList[var12];
063
064                            if (block != null &&
065                               !block.isLeaves(par1World, var10, var8, var11) &&
066                               !block.canSustainPlant(par1World, var10, var8, var11, ForgeDirection.UP, (BlockSapling)Block.sapling) && 
067                               !block.isWood(par1World, var10, var8, var11) &&
068                               var12 != Block.sapling.blockID)
069                            {
070                                var7 = false;
071                            }
072                        }
073                        else
074                        {
075                            var7 = false;
076                        }
077                    }
078                }
079            }
080
081            if (!var7)
082            {
083                return false;
084            }
085            else
086            {
087                var8 = par1World.getBlockId(par3, par4 - 1, par5);
088                Block soil = Block.blocksList[var8];
089                boolean isValidSoil = soil != null && soil.canSustainPlant(par1World, par3, par4 - 1, par5, ForgeDirection.UP, (BlockSapling)Block.sapling);
090
091                if (isValidSoil && par4 < 256 - var6 - 1)
092                {
093                    onPlantGrow(par1World, par3,     par4 - 1, par5,     par3, par4, par5);
094                    onPlantGrow(par1World, par3 + 1, par4 - 1, par5,     par3, par4, par5);
095                    onPlantGrow(par1World, par3,     par4 - 1, par5 + 1, par3, par4, par5);
096                    onPlantGrow(par1World, par3 + 1, par4 - 1, par5 + 1, par3, par4, par5);
097                    this.growLeaves(par1World, par3, par5, par4 + var6, 2, par2Random);
098
099                    for (int var14 = par4 + var6 - 2 - par2Random.nextInt(4); var14 > par4 + var6 / 2; var14 -= 2 + par2Random.nextInt(4))
100                    {
101                        float var15 = par2Random.nextFloat() * (float)Math.PI * 2.0F;
102                        var11 = par3 + (int)(0.5F + MathHelper.cos(var15) * 4.0F);
103                        var12 = par5 + (int)(0.5F + MathHelper.sin(var15) * 4.0F);
104                        this.growLeaves(par1World, var11, var12, var14, 0, par2Random);
105
106                        for (int var13 = 0; var13 < 5; ++var13)
107                        {
108                            var11 = par3 + (int)(1.5F + MathHelper.cos(var15) * (float)var13);
109                            var12 = par5 + (int)(1.5F + MathHelper.sin(var15) * (float)var13);
110                            this.setBlockAndMetadata(par1World, var11, var14 - 3 + var13 / 2, var12, Block.wood.blockID, this.woodMetadata);
111                        }
112                    }
113
114                    for (var10 = 0; var10 < var6; ++var10)
115                    {
116                        var11 = par1World.getBlockId(par3, par4 + var10, par5);
117
118                        if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3, par4 + var10, par5))
119                        {
120                            this.setBlockAndMetadata(par1World, par3, par4 + var10, par5, Block.wood.blockID, this.woodMetadata);
121
122                            if (var10 > 0)
123                            {
124                                if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 - 1, par4 + var10, par5))
125                                {
126                                    this.setBlockAndMetadata(par1World, par3 - 1, par4 + var10, par5, Block.vine.blockID, 8);
127                                }
128
129                                if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3, par4 + var10, par5 - 1))
130                                {
131                                    this.setBlockAndMetadata(par1World, par3, par4 + var10, par5 - 1, Block.vine.blockID, 1);
132                                }
133                            }
134                        }
135
136                        if (var10 < var6 - 1)
137                        {
138                            var11 = par1World.getBlockId(par3 + 1, par4 + var10, par5);
139
140                            if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3 + 1, par4 + var10, par5))
141                            {
142                                this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5, Block.wood.blockID, this.woodMetadata);
143
144                                if (var10 > 0)
145                                {
146                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 2, par4 + var10, par5))
147                                    {
148                                        this.setBlockAndMetadata(par1World, par3 + 2, par4 + var10, par5, Block.vine.blockID, 2);
149                                    }
150
151                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 1, par4 + var10, par5 - 1))
152                                    {
153                                        this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5 - 1, Block.vine.blockID, 1);
154                                    }
155                                }
156                            }
157
158                            var11 = par1World.getBlockId(par3 + 1, par4 + var10, par5 + 1);
159
160                            if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3 + 1, par4 + var10, par5 + 1))
161                            {
162                                this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5 + 1, Block.wood.blockID, this.woodMetadata);
163
164                                if (var10 > 0)
165                                {
166                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 2, par4 + var10, par5 + 1))
167                                    {
168                                        this.setBlockAndMetadata(par1World, par3 + 2, par4 + var10, par5 + 1, Block.vine.blockID, 2);
169                                    }
170
171                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 1, par4 + var10, par5 + 2))
172                                    {
173                                        this.setBlockAndMetadata(par1World, par3 + 1, par4 + var10, par5 + 2, Block.vine.blockID, 4);
174                                    }
175                                }
176                            }
177
178                            var11 = par1World.getBlockId(par3, par4 + var10, par5 + 1);
179
180                            if (var11 == 0 || Block.blocksList[var11] == null || Block.blocksList[var11].isLeaves(par1World, par3, par4 + var10, par5 + 1))
181                            {
182                                this.setBlockAndMetadata(par1World, par3, par4 + var10, par5 + 1, Block.wood.blockID, this.woodMetadata);
183
184                                if (var10 > 0)
185                                {
186                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 - 1, par4 + var10, par5 + 1))
187                                    {
188                                        this.setBlockAndMetadata(par1World, par3 - 1, par4 + var10, par5 + 1, Block.vine.blockID, 8);
189                                    }
190
191                                    if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3, par4 + var10, par5 + 2))
192                                    {
193                                        this.setBlockAndMetadata(par1World, par3, par4 + var10, par5 + 2, Block.vine.blockID, 4);
194                                    }
195                                }
196                            }
197                        }
198                    }
199
200                    return true;
201                }
202                else
203                {
204                    return false;
205                }
206            }
207        }
208        else
209        {
210            return false;
211        }
212    }
213
214    private void growLeaves(World par1World, int par2, int par3, int par4, int par5, Random par6Random)
215    {
216        byte var7 = 2;
217
218        for (int var8 = par4 - var7; var8 <= par4; ++var8)
219        {
220            int var9 = var8 - par4;
221            int var10 = par5 + 1 - var9;
222
223            for (int var11 = par2 - var10; var11 <= par2 + var10 + 1; ++var11)
224            {
225                int var12 = var11 - par2;
226
227                for (int var13 = par3 - var10; var13 <= par3 + var10 + 1; ++var13)
228                {
229                    int var14 = var13 - par3;
230
231                    Block block = Block.blocksList[par1World.getBlockId(var11, var8, var13)];
232
233                    if ((var12 >= 0 || var14 >= 0 || var12 * var12 + var14 * var14 <= var10 * var10) && 
234                        (var12 <= 0 && var14 <= 0 || var12 * var12 + var14 * var14 <= (var10 + 1) * (var10 + 1)) && 
235                        (par6Random.nextInt(4) != 0 || var12 * var12 + var14 * var14 <= (var10 - 1) * (var10 - 1)) && 
236                        (block == null || block.canBeReplacedByLeaves(par1World, var11, var8, var13)))
237                    {
238                        this.setBlockAndMetadata(par1World, var11, var8, var13, Block.leaves.blockID, this.leavesMetadata);
239                    }
240                }
241            }
242        }
243    }
244    
245    private void onPlantGrow(World world, int x, int y, int z, int sourceX, int sourceY, int sourceZ)
246    {
247        Block block = Block.blocksList[world.getBlockId(x, y, z)];
248        if (block != null)
249        {
250            block.onPlantGrow(world, x, y, z, sourceX, sourceY, sourceZ);
251        }
252    }
253}