package gtPlusPlus.everglades.gen;

import static gtPlusPlus.core.lib.GTPPCore.PI;

import java.util.Random;

import net.minecraft.block.Block;
import net.minecraft.init.Blocks;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;
import net.minecraft.world.gen.feature.WorldGenMinable;

import gtPlusPlus.api.objects.Logger;

public class WorldGenMinableCustom extends WorldGenMinable {

    /** The block to generate. */
    private Block oreToGenerate;
    /** The number of blocks to generate. */
    private int numberOfBlocks;
    /** The block to replace. */
    private Block blockToReplace;
    /** The meta of the block. */
    private int mineableBlockMeta;

    public WorldGenMinableCustom(final Block block, final int count) {
        super(block, count, Blocks.stone);
    }

    public WorldGenMinableCustom(final Block block, final int count, final Block target) {
        super(block, count, target);
        this.oreToGenerate = block;
        this.numberOfBlocks = count;
        this.blockToReplace = target;
    }

    public WorldGenMinableCustom(final Block block, final int meta, final int number, final Block target) {
        this(block, number, target);
        this.mineableBlockMeta = meta;
    }

    @Override
    public boolean generate(final World world, final Random rand, final int x, final int y, final int z) {
        final float f = rand.nextFloat() * PI;
        final double d0 = x + 16 + ((MathHelper.sin(f) * this.numberOfBlocks) / 4.0F);
        final double d1 = (x + 16) - ((MathHelper.sin(f) * this.numberOfBlocks) / 4.0F);
        final double d2 = z + 16 + ((MathHelper.cos(f) * this.numberOfBlocks) / 4.0F);
        final double d3 = (z + 16) - ((MathHelper.cos(f) * this.numberOfBlocks) / 4.0F);
        final double d4 = (y + rand.nextInt(8)) - 1;
        final double d5 = (y + rand.nextInt(8)) - 1;

        for (int l = 0; l <= this.numberOfBlocks; ++l) {
            final double d6 = d0 + (((d1 - d0) * l) / this.numberOfBlocks);
            final double d7 = d4 + (((d5 - d4) * l) / this.numberOfBlocks);
            final double d8 = d2 + (((d3 - d2) * l) / this.numberOfBlocks);
            final double d9 = (rand.nextDouble() * this.numberOfBlocks) / 8.0D;
            final double d10 = ((MathHelper.sin((l * PI) / this.numberOfBlocks) + 1.0F) * d9) + 1.0D;
            final double d11 = ((MathHelper.sin((l * PI) / this.numberOfBlocks) + 1.0F) * d9) + 1.0D;
            final int i1 = MathHelper.floor_double(d6 - (d10 / 2.0D));
            final int j1 = MathHelper.floor_double(d7 - (d11 / 2.0D));
            final int k1 = MathHelper.floor_double(d8 - (d10 / 2.0D));
            final int l1 = MathHelper.floor_double(d6 + (d10 / 2.0D));
            final int i2 = MathHelper.floor_double(d7 + (d11 / 2.0D));
            final int j2 = MathHelper.floor_double(d8 + (d10 / 2.0D));

            for (int k2 = i1; k2 <= l1; ++k2) {
                final double d12 = ((k2 + 0.5D) - d6) / (d10 / 2.0D);
                if ((d12 * d12) < 1.0D) {
                    for (int l2 = j1; l2 <= i2; ++l2) {
                        final double d13 = ((l2 + 0.5D) - d7) / (d11 / 2.0D);
                        if (((d12 * d12) + (d13 * d13)) < 1.0D) {
                            for (int i3 = k1; i3 <= j2; ++i3) {
                                final double d14 = ((i3 + 0.5D) - d8) / (d10 / 2.0D);
                                if ((((d12 * d12) + (d13 * d13) + (d14 * d14)) < 1.0D) && world.getBlock(k2, l2, i3)
                                    .isReplaceableOreGen(world, k2, l2, i3, this.blockToReplace)) {
                                    world.setBlock(k2, l2, i3, this.oreToGenerate, this.mineableBlockMeta, 3);
                                    Logger.INFO(
                                        "Generated a " + this.oreToGenerate
                                            .getLocalizedName() + " at x: " + k2 + " | y: " + l2 + " | z: " + i3);
                                }
                            }
                        }
                    }
                }
            }
        }

        return true;
    }
}