    001package net.minecraft.world.gen.feature;
    002
    003import java.util.Random;
    004import net.minecraft.block.Block;
    005import net.minecraft.block.material.Material;
    006import net.minecraft.world.EnumSkyBlock;
    007import net.minecraft.world.World;
    008import net.minecraft.world.biome.BiomeGenBase;
    009
    010public class WorldGenLakes extends WorldGenerator
    011{
    012    private int blockIndex;
    013
    014    public WorldGenLakes(int par1)
    015    {
    016        this.blockIndex = par1;
    017    }
    018
    019    public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
    020    {
    021        par3 -= 8;
    022
    023        for (par5 -= 8; par4 > 5 && par1World.isAirBlock(par3, par4, par5); --par4)
    024        {
    025            ;
    026        }
    027
    028        if (par4 <= 4)
    029        {
    030            return false;
    031        }
    032        else
    033        {
    034            par4 -= 4;
    035            boolean[] var6 = new boolean[2048];
    036            int var7 = par2Random.nextInt(4) + 4;
    037            int var8;
    038
    039            for (var8 = 0; var8 < var7; ++var8)
    040            {
    041                double var9 = par2Random.nextDouble() * 6.0D + 3.0D;
    042                double var11 = par2Random.nextDouble() * 4.0D + 2.0D;
    043                double var13 = par2Random.nextDouble() * 6.0D + 3.0D;
    044                double var15 = par2Random.nextDouble() * (16.0D - var9 - 2.0D) + 1.0D + var9 / 2.0D;
    045                double var17 = par2Random.nextDouble() * (8.0D - var11 - 4.0D) + 2.0D + var11 / 2.0D;
    046                double var19 = par2Random.nextDouble() * (16.0D - var13 - 2.0D) + 1.0D + var13 / 2.0D;
    047
    048                for (int var21 = 1; var21 < 15; ++var21)
    049                {
    050                    for (int var22 = 1; var22 < 15; ++var22)
    051                    {
    052                        for (int var23 = 1; var23 < 7; ++var23)
    053                        {
    054                            double var24 = ((double)var21 - var15) / (var9 / 2.0D);
    055                            double var26 = ((double)var23 - var17) / (var11 / 2.0D);
    056                            double var28 = ((double)var22 - var19) / (var13 / 2.0D);
    057                            double var30 = var24 * var24 + var26 * var26 + var28 * var28;
    058
    059                            if (var30 < 1.0D)
    060                            {
    061                                var6[(var21 * 16 + var22) * 8 + var23] = true;
    062                            }
    063                        }
    064                    }
    065                }
    066            }
    067
    068            int var10;
    069            int var32;
    070            boolean var33;
    071
    072            for (var8 = 0; var8 < 16; ++var8)
    073            {
    074                for (var32 = 0; var32 < 16; ++var32)
    075                {
    076                    for (var10 = 0; var10 < 8; ++var10)
    077                    {
    078                        var33 = !var6[(var8 * 16 + var32) * 8 + var10] && (var8 < 15 && var6[((var8 + 1) * 16 + var32) * 8 + var10] || var8 > 0 && var6[((var8 - 1) * 16 + var32) * 8 + var10] || var32 < 15 && var6[(var8 * 16 + var32 + 1) * 8 + var10] || var32 > 0 && var6[(var8 * 16 + (var32 - 1)) * 8 + var10] || var10 < 7 && var6[(var8 * 16 + var32) * 8 + var10 + 1] || var10 > 0 && var6[(var8 * 16 + var32) * 8 + (var10 - 1)]);
    079
    080                        if (var33)
    081                        {
    082                            Material var12 = par1World.getBlockMaterial(par3 + var8, par4 + var10, par5 + var32);
    083
    084                            if (var10 >= 4 && var12.isLiquid())
    085                            {
    086                                return false;
    087                            }
    088
    089                            if (var10 < 4 && !var12.isSolid() && par1World.getBlockId(par3 + var8, par4 + var10, par5 + var32) != this.blockIndex)
    090                            {
    091                                return false;
    092                            }
    093                        }
    094                    }
    095                }
    096            }
    097
    098            for (var8 = 0; var8 < 16; ++var8)
    099            {
    100                for (var32 = 0; var32 < 16; ++var32)
    101                {
    102                    for (var10 = 0; var10 < 8; ++var10)
    103                    {
    104                        if (var6[(var8 * 16 + var32) * 8 + var10])
    105                        {
    106                            par1World.setBlock(par3 + var8, par4 + var10, par5 + var32, var10 >= 4 ? 0 : this.blockIndex);
    107                        }
    108                    }
    109                }
    110            }
    111
    112            for (var8 = 0; var8 < 16; ++var8)
    113            {
    114                for (var32 = 0; var32 < 16; ++var32)
    115                {
    116                    for (var10 = 4; var10 < 8; ++var10)
    117                    {
    118                        if (var6[(var8 * 16 + var32) * 8 + var10] && par1World.getBlockId(par3 + var8, par4 + var10 - 1, par5 + var32) == Block.dirt.blockID && par1World.getSavedLightValue(EnumSkyBlock.Sky, par3 + var8, par4 + var10, par5 + var32) > 0)
    119                        {
    120                            BiomeGenBase var35 = par1World.getBiomeGenForCoords(par3 + var8, par5 + var32);
    121
    122                            if (var35.topBlock == Block.mycelium.blockID)
    123                            {
    124                                par1World.setBlock(par3 + var8, par4 + var10 - 1, par5 + var32, Block.mycelium.blockID);
    125                            }
    126                            else
    127                            {
    128                                par1World.setBlock(par3 + var8, par4 + var10 - 1, par5 + var32, Block.grass.blockID);
    129                            }
    130                        }
    131                    }
    132                }
    133            }
    134
    135            if (Block.blocksList[this.blockIndex].blockMaterial == Material.lava)
    136            {
    137                for (var8 = 0; var8 < 16; ++var8)
    138                {
    139                    for (var32 = 0; var32 < 16; ++var32)
    140                    {
    141                        for (var10 = 0; var10 < 8; ++var10)
    142                        {
    143                            var33 = !var6[(var8 * 16 + var32) * 8 + var10] && (var8 < 15 && var6[((var8 + 1) * 16 + var32) * 8 + var10] || var8 > 0 && var6[((var8 - 1) * 16 + var32) * 8 + var10] || var32 < 15 && var6[(var8 * 16 + var32 + 1) * 8 + var10] || var32 > 0 && var6[(var8 * 16 + (var32 - 1)) * 8 + var10] || var10 < 7 && var6[(var8 * 16 + var32) * 8 + var10 + 1] || var10 > 0 && var6[(var8 * 16 + var32) * 8 + (var10 - 1)]);
    144
    145                            if (var33 && (var10 < 4 || par2Random.nextInt(2) != 0) && par1World.getBlockMaterial(par3 + var8, par4 + var10, par5 + var32).isSolid())
    146                            {
    147                                par1World.setBlock(par3 + var8, par4 + var10, par5 + var32, Block.stone.blockID);
    148                            }
    149                        }
    150                    }
    151                }
    152            }
    153
    154            if (Block.blocksList[this.blockIndex].blockMaterial == Material.water)
    155            {
    156                for (var8 = 0; var8 < 16; ++var8)
    157                {
    158                    for (var32 = 0; var32 < 16; ++var32)
    159                    {
    160                        byte var34 = 4;
    161
    162                        if (par1World.isBlockFreezable(par3 + var8, par4 + var34, par5 + var32))
    163                        {
    164                            par1World.setBlock(par3 + var8, par4 + var34, par5 + var32, Block.ice.blockID);
    165                        }
    166                    }
    167                }
    168            }
    169
    170            return true;
    171        }
    172    }
    173}