package net.minecraft.world.gen.layer;

public class GenLayerVoronoiZoom extends GenLayer
{
    public GenLayerVoronoiZoom(long par1, GenLayer par3GenLayer)
    {
        super(par1);
        super.parent = par3GenLayer;
    }

    /**
     * Returns a list of integer values generated by this layer. These may be interpreted as temperatures, rainfall
     * amounts, or biomeList[] indices based on the particular GenLayer subclass.
     */
    public int[] getInts(int par1, int par2, int par3, int par4)
    {
        par1 -= 2;
        par2 -= 2;
        byte var5 = 2;
        int var6 = 1 << var5;
        int var7 = par1 >> var5;
        int var8 = par2 >> var5;
        int var9 = (par3 >> var5) + 3;
        int var10 = (par4 >> var5) + 3;
        int[] var11 = this.parent.getInts(var7, var8, var9, var10);
        int var12 = var9 << var5;
        int var13 = var10 << var5;
        int[] var14 = IntCache.getIntCache(var12 * var13);
        int var16;

        for (int var15 = 0; var15 < var10 - 1; ++var15)
        {
            var16 = var11[0 + (var15 + 0) * var9];
            int var17 = var11[0 + (var15 + 1) * var9];

            for (int var18 = 0; var18 < var9 - 1; ++var18)
            {
                double var19 = (double)var6 * 0.9D;
                this.initChunkSeed((long)(var18 + var7 << var5), (long)(var15 + var8 << var5));
                double var21 = ((double)this.nextInt(1024) / 1024.0D - 0.5D) * var19;
                double var23 = ((double)this.nextInt(1024) / 1024.0D - 0.5D) * var19;
                this.initChunkSeed((long)(var18 + var7 + 1 << var5), (long)(var15 + var8 << var5));
                double var25 = ((double)this.nextInt(1024) / 1024.0D - 0.5D) * var19 + (double)var6;
                double var27 = ((double)this.nextInt(1024) / 1024.0D - 0.5D) * var19;
                this.initChunkSeed((long)(var18 + var7 << var5), (long)(var15 + var8 + 1 << var5));
                double var29 = ((double)this.nextInt(1024) / 1024.0D - 0.5D) * var19;
                double var31 = ((double)this.nextInt(1024) / 1024.0D - 0.5D) * var19 + (double)var6;
                this.initChunkSeed((long)(var18 + var7 + 1 << var5), (long)(var15 + var8 + 1 << var5));
                double var33 = ((double)this.nextInt(1024) / 1024.0D - 0.5D) * var19 + (double)var6;
                double var35 = ((double)this.nextInt(1024) / 1024.0D - 0.5D) * var19 + (double)var6;
                int var37 = var11[var18 + 1 + (var15 + 0) * var9];
                int var38 = var11[var18 + 1 + (var15 + 1) * var9];

                for (int var39 = 0; var39 < var6; ++var39)
                {
                    int var40 = ((var15 << var5) + var39) * var12 + (var18 << var5);

                    for (int var41 = 0; var41 < var6; ++var41)
                    {
                        double var42 = ((double)var39 - var23) * ((double)var39 - var23) + ((double)var41 - var21) * ((double)var41 - var21);
                        double var44 = ((double)var39 - var27) * ((double)var39 - var27) + ((double)var41 - var25) * ((double)var41 - var25);
                        double var46 = ((double)var39 - var31) * ((double)var39 - var31) + ((double)var41 - var29) * ((double)var41 - var29);
                        double var48 = ((double)var39 - var35) * ((double)var39 - var35) + ((double)var41 - var33) * ((double)var41 - var33);

                        if (var42 < var44 && var42 < var46 && var42 < var48)
                        {
                            var14[var40++] = var16;
                        }
                        else if (var44 < var42 && var44 < var46 && var44 < var48)
                        {
                            var14[var40++] = var37;
                        }
                        else if (var46 < var42 && var46 < var44 && var46 < var48)
                        {
                            var14[var40++] = var17;
                        }
                        else
                        {
                            var14[var40++] = var38;
                        }
                    }
                }

                var16 = var37;
                var17 = var38;
            }
        }

        int[] var50 = IntCache.getIntCache(par3 * par4);

        for (var16 = 0; var16 < par4; ++var16)
        {
            System.arraycopy(var14, (var16 + (par2 & var6 - 1)) * (var9 << var5) + (par1 & var6 - 1), var50, var16 * par3, par3);
        }

        return var50;
    }
}
