Chisel/src/main/java/team/chisel/block/BlockCarvablePumpkin.java

package team.chisel.block;

import net.minecraft.block.Block;
import net.minecraft.block.BlockPumpkin;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.entity.monster.EntityIronGolem;
import net.minecraft.init.Blocks;
import net.minecraft.item.ItemStack;
import net.minecraft.util.IIcon;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

import team.chisel.Chisel;
import team.chisel.entity.EntityChiselSnowman;

import com.cricketcraft.chisel.api.ICarvable;
import com.cricketcraft.chisel.api.carving.CarvableHelper;
import com.cricketcraft.chisel.api.carving.IVariationInfo;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

public class BlockCarvablePumpkin extends BlockPumpkin implements ICarvable {

    public CarvableHelper carverHelper;

    @SideOnly(Side.CLIENT)
    private IIcon top, face;

    private String faceLocation;

    public BlockCarvablePumpkin(boolean isOn) {
        super(isOn);
        this.setStepSound(Block.soundTypeWood);
        if (isOn) setLightLevel(10.0F);
        carverHelper = new CarvableHelper(this);
    }

    @Override
    public void onBlockAdded(World world, int x, int y, int z) {
        if (world.getBlock(x, y - 1, z) == Blocks.snow && world.getBlock(x, y - 2, z) == Blocks.snow) {
            if (!world.isRemote) {
                // Let's grab the pumpkin before we start
                ItemStack pumpkin = new ItemStack(world.getBlock(x, y, z), world.getBlockMetadata(x, y, z));

                world.setBlock(x, y, z, Blocks.air, 0, 2);
                world.setBlock(x, y - 1, z, Blocks.air, 0, 2);
                world.setBlock(x, y - 2, z, Blocks.air, 0, 2);
                EntityChiselSnowman snowman = new EntityChiselSnowman(world);
                snowman.setCurrentItemOrArmor(2, pumpkin);
                snowman.setLocationAndAngles(x + 0.5D, y - 1.95D, z + 0.5D, 0.0F, 0.0F);
                world.spawnEntityInWorld(snowman);
                world.notifyBlockChange(x, y, z, Blocks.air);
                world.notifyBlockChange(x, y - 1, z, Blocks.air);
                world.notifyBlockChange(x, y - 2, z, Blocks.air);
            }

            // Spawn some lovely particles
            for (int c = 0; c < 120; ++c) {
                world.spawnParticle(
                        "snowshovel",
                        x + world.rand.nextDouble(),
                        y - 2 + world.rand.nextDouble() * 2.5D,
                        z + world.rand.nextDouble(),
                        0.0D,
                        0.0D,
                        0.0D);
            }
        } else
            if (world.getBlock(x, y - 1, z) == Blocks.iron_block || world.getBlock(x, y - 2, z) == Blocks.iron_block) {
                boolean flag = world.getBlock(x - 1, y - 1, z) == Blocks.iron_block
                        && world.getBlock(x + 1, y - 1, z) == Blocks.iron_block;
                boolean flag1 = world.getBlock(x, y - 1, z - 1) == Blocks.iron_block
                        && world.getBlock(x, y - 1, z + 1) == Blocks.iron_block;

                if (flag || flag1) {
                    world.setBlock(x, y, z, Blocks.air, 0, 2);
                    world.setBlock(x, y - 1, z, Blocks.air, 0, 2);
                    world.setBlock(x, y - 2, z, Blocks.air, 0, 2);

                    if (flag) {
                        world.setBlock(x - 1, y - 1, z, Blocks.air, 0, 2);
                        world.setBlock(x + 1, y - 1, z, Blocks.air, 0, 2);
                    } else {
                        world.setBlock(x, y - 1, z - 1, Blocks.air, 0, 2);
                        world.setBlock(x, y - 1, z + 1, Blocks.air, 0, 2);
                    }

                    EntityIronGolem ironGolem = new EntityIronGolem(world);
                    ironGolem.setPlayerCreated(true);
                    ironGolem.setLocationAndAngles(x + 0.5D, y - 1.95D, z + 0.5D, 0.0F, 0.0F);
                    world.spawnEntityInWorld(ironGolem);

                    world.notifyBlockChange(x, y, z, Blocks.air);
                    world.notifyBlockChange(x, y - 1, z, Blocks.air);
                    world.notifyBlockChange(x, y - 2, z, Blocks.air);

                    if (flag) {
                        world.notifyBlockChange(x - 1, y - 1, z, Blocks.air);
                        world.notifyBlockChange(x + 1, y - 1, z, Blocks.air);
                    } else {
                        world.notifyBlockChange(x, y - 1, z - 1, Blocks.air);
                        world.notifyBlockChange(x, y - 1, z + 1, Blocks.air);
                    }
                }
            }
    }

    @Override
    @SideOnly(Side.CLIENT)
    public IIcon getIcon(int side, int meta) {
        return side == 1 ? top
                : (side == 0 ? top
                        : (meta == 2 && side == 2 ? face
                                : (meta == 3 && side == 5 ? face
                                        : (meta == 0 && side == 3 ? face
                                                : (meta == 1 && side == 4 ? face : this.blockIcon)))));
    }

    @Override
    public void registerBlockIcons(IIconRegister icon) {
        top = icon.registerIcon(Chisel.MOD_ID + ":pumpkin/pumpkin_top");
        face = icon.registerIcon(Chisel.MOD_ID + ":" + faceLocation);
        this.blockIcon = icon.registerIcon(Chisel.MOD_ID + ":pumpkin/pumpkin_side");
    }

    @Override
    public IVariationInfo getManager(IBlockAccess world, int x, int y, int z, int metadata) {
        return carverHelper.getVariation(metadata);
    }

    @Override
    public IVariationInfo getManager(int meta) {
        return carverHelper.getVariation(meta);
    }

    public void setInformation(String textureLocation) {
        this.faceLocation = textureLocation;
    }
}