WorldChunkManagerTropicraft.java

package net.tropicraft.world.biomes;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Random;

import net.minecraft.crash.CrashReport;
import net.minecraft.crash.CrashReportCategory;
import net.minecraft.util.ReportedException;
import net.minecraft.world.ChunkPosition;
import net.minecraft.world.World;
import net.minecraft.world.WorldType;
import net.minecraft.world.biome.BiomeCache;
import net.minecraft.world.biome.BiomeGenBase;
import net.minecraft.world.biome.WorldChunkManager;
import net.minecraft.world.gen.layer.GenLayer;
import net.minecraft.world.gen.layer.IntCache;
import net.tropicraft.world.genlayer.GenLayerTropicraft;

public class WorldChunkManagerTropicraft extends WorldChunkManager {

	public static final List<BiomeGenBase> allowedBiomes = Arrays.asList(BiomeGenTropicraft.tropics, BiomeGenTropicraft.rainforestPlains);
    private GenLayer genBiomes;

    private GenLayer biomeIndexLayer;

    private BiomeCache biomeCache;

    private List biomesToSpawnIn;

    protected WorldChunkManagerTropicraft()
    {
        this.biomeCache = new BiomeCache(this);
        this.biomesToSpawnIn = new ArrayList();
        this.biomesToSpawnIn.addAll(allowedBiomes);
    }

    public WorldChunkManagerTropicraft(long seed, WorldType worldType)
    {
        this();
        GenLayer[] agenlayer = GenLayerTropicraft.initializeAllBiomeGenerators(seed, worldType);
        this.genBiomes = agenlayer[0];
        this.biomeIndexLayer = agenlayer[1];
    }

    public WorldChunkManagerTropicraft(World world)
    {
        this(world.getSeed(), world.getWorldInfo().getTerrainType());
    }

    @Override
    public List getBiomesToSpawnIn()
    {
        return this.biomesToSpawnIn;
    }

    @Override
    public BiomeGenBase getBiomeGenAt(int par1, int par2)
    {
        return this.biomeCache.getBiomeGenAt(par1, par2);
    }

    @Override
    public float[] getRainfall(float[] par1ArrayOfFloat, int par2, int par3, int par4, int par5)
    {
        IntCache.resetIntCache();

        if (par1ArrayOfFloat == null || par1ArrayOfFloat.length < par4 * par5)
        {
            par1ArrayOfFloat = new float[par4 * par5];
        }

        int[] aint = this.biomeIndexLayer.getInts(par2, par3, par4, par5);

        for (int i1 = 0; i1 < par4 * par5; ++i1)
        {
            try
            {
                float f = (float)BiomeGenBase.getBiome(aint[i1]).getIntRainfall() / 65536.0F;

                if (f > 1.0F)
                {
                    f = 1.0F;
                }

                par1ArrayOfFloat[i1] = f;
            }
            catch (Throwable throwable)
            {
                CrashReport crashreport = CrashReport.makeCrashReport(throwable, "Invalid Biome id");
                CrashReportCategory crashreportcategory = crashreport.makeCategory("DownfallBlock");
                crashreportcategory.addCrashSection("biome id", Integer.valueOf(i1));
                crashreportcategory.addCrashSection("downfalls[] size", Integer.valueOf(par1ArrayOfFloat.length));
                crashreportcategory.addCrashSection("x", Integer.valueOf(par2));
                crashreportcategory.addCrashSection("z", Integer.valueOf(par3));
                crashreportcategory.addCrashSection("w", Integer.valueOf(par4));
                crashreportcategory.addCrashSection("h", Integer.valueOf(par5));
                throw new ReportedException(crashreport);
            }
        }

        return par1ArrayOfFloat;
    }

    @Override
    public BiomeGenBase[] getBiomesForGeneration(BiomeGenBase[] par1ArrayOfBiomeGenBase, int par2, int par3, int par4, int par5)
    {
        IntCache.resetIntCache();

        if (par1ArrayOfBiomeGenBase == null || par1ArrayOfBiomeGenBase.length < par4 * par5)
        {
            par1ArrayOfBiomeGenBase = new BiomeGenBase[par4 * par5];
        }

        int[] aint = this.genBiomes.getInts(par2, par3, par4, par5);

        try
        {
            for (int i1 = 0; i1 < par4 * par5; ++i1)
            {
                par1ArrayOfBiomeGenBase[i1] = BiomeGenBase.getBiome(aint[i1]);
            }

            return par1ArrayOfBiomeGenBase;
        }
        catch (Throwable throwable)
        {
            CrashReport crashreport = CrashReport.makeCrashReport(throwable, "Invalid Biome id");
            CrashReportCategory crashreportcategory = crashreport.makeCategory("RawBiomeBlock");
            crashreportcategory.addCrashSection("biomes[] size", Integer.valueOf(par1ArrayOfBiomeGenBase.length));
            crashreportcategory.addCrashSection("x", Integer.valueOf(par2));
            crashreportcategory.addCrashSection("z", Integer.valueOf(par3));
            crashreportcategory.addCrashSection("w", Integer.valueOf(par4));
            crashreportcategory.addCrashSection("h", Integer.valueOf(par5));
            throw new ReportedException(crashreport);
        }
    }

    @Override
    public BiomeGenBase[] getBiomeGenAt(BiomeGenBase[] par1ArrayOfBiomeGenBase, int par2, int par3, int par4, int par5, boolean par6)
    {
        IntCache.resetIntCache();

        if (par1ArrayOfBiomeGenBase == null || par1ArrayOfBiomeGenBase.length < par4 * par5)
        {
            par1ArrayOfBiomeGenBase = new BiomeGenBase[par4 * par5];
        }

        if (par6 && par4 == 16 && par5 == 16 && (par2 & 15) == 0 && (par3 & 15) == 0)
        {
            BiomeGenBase[] abiomegenbase1 = this.biomeCache.getCachedBiomes(par2, par3);
            System.arraycopy(abiomegenbase1, 0, par1ArrayOfBiomeGenBase, 0, par4 * par5);
            return par1ArrayOfBiomeGenBase;
        }
        else
        {
            int[] aint = this.biomeIndexLayer.getInts(par2, par3, par4, par5);

            for (int i1 = 0; i1 < par4 * par5; ++i1)
            {
                par1ArrayOfBiomeGenBase[i1] = BiomeGenBase.getBiome(aint[i1]);
            }

            return par1ArrayOfBiomeGenBase;
        }
    }

    @Override
    public boolean areBiomesViable(int par1, int par2, int par3, List par4List)
    {
        IntCache.resetIntCache();
        int l = par1 - par3 >> 2;
        int i1 = par2 - par3 >> 2;
        int j1 = par1 + par3 >> 2;
        int k1 = par2 + par3 >> 2;
        int l1 = j1 - l + 1;
        int i2 = k1 - i1 + 1;
        int[] aint = this.genBiomes.getInts(l, i1, l1, i2);

        try
        {
            for (int j2 = 0; j2 < l1 * i2; ++j2)
            {
                BiomeGenBase biomegenbase = BiomeGenBase.getBiome(aint[j2]);

                if (!par4List.contains(biomegenbase))
                {
                    return false;
                }
            }

            return true;
        }
        catch (Throwable throwable)
        {
            CrashReport crashreport = CrashReport.makeCrashReport(throwable, "Invalid Biome id");
            CrashReportCategory crashreportcategory = crashreport.makeCategory("Layer");
            crashreportcategory.addCrashSection("Layer", this.genBiomes.toString());
            crashreportcategory.addCrashSection("x", Integer.valueOf(par1));
            crashreportcategory.addCrashSection("z", Integer.valueOf(par2));
            crashreportcategory.addCrashSection("radius", Integer.valueOf(par3));
            crashreportcategory.addCrashSection("allowed", par4List);
            throw new ReportedException(crashreport);
        }
    }

    @Override
    public ChunkPosition findBiomePosition(int p_150795_1_, int p_150795_2_, int p_150795_3_, List p_150795_4_, Random p_150795_5_)
    {
        IntCache.resetIntCache();
        int l = p_150795_1_ - p_150795_3_ >> 2;
        int i1 = p_150795_2_ - p_150795_3_ >> 2;
        int j1 = p_150795_1_ + p_150795_3_ >> 2;
        int k1 = p_150795_2_ + p_150795_3_ >> 2;
        int l1 = j1 - l + 1;
        int i2 = k1 - i1 + 1;
        int[] aint = this.genBiomes.getInts(l, i1, l1, i2);
        ChunkPosition chunkposition = null;
        int j2 = 0;

        for (int k2 = 0; k2 < l1 * i2; ++k2)
        {
            int l2 = l + k2 % l1 << 2;
            int i3 = i1 + k2 / l1 << 2;
            BiomeGenBase biomegenbase = BiomeGenBase.getBiome(aint[k2]);

            if (p_150795_4_.contains(biomegenbase) && (chunkposition == null || p_150795_5_.nextInt(j2 + 1) == 0))
            {
                chunkposition = new ChunkPosition(l2, 0, i3);
                ++j2;
            }
        }

        return chunkposition;
    }

    @Override
    public void cleanupCache()
    {
        this.biomeCache.cleanupCache();
    }
	
}