BlockMachine.java

package com.gunn.modtest.blocks;

import com.gunn.modtest.ModTest;
import com.gunn.modtest.states.ModStates;
import com.gunn.modtest.states.ModStates.MachineTypes;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.state.BlockStateContainer;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.Entity;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemStack;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumHand;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.registry.GameRegistry;

public class BlockMachine extends Block{

	public BlockMachine() {
		super(Material.IRON);

		setRegistryName("blockmachine");
		setUnlocalizedName(this.getRegistryName().toString());

		setCreativeTab(ModTest.tabTest);
		setHardness(2F);
		setDefaultState(blockState.getBaseState().withProperty(ModStates.POWERED, Boolean.valueOf(false))
												 .withProperty(ModStates.MACTYPE, ModStates.MachineTypes.DEFAULT));

		GameRegistry.register(this);
		GameRegistry.register(new ItemBlock(this), getRegistryName());
	}

	@Override
	public void onEntityWalk(World world, BlockPos pos, Entity entity){
		if(!world.isRemote && !isDisabled(world.getBlockState(pos))){
			spawnAnvil(world,new BlockPos(pos.getX(),pos.getY()+20,pos.getZ()));
		}
	}

	@Override
	public void neighborChanged(IBlockState state, World world, BlockPos pos, Block block){
		if(!world.isRemote && world.isBlockPowered(pos) && !isDisabled(state)){
			for(int i = -2; i <= 2; i++){
				for(int j = -2; j <= 2; j++){
					spawnAnvil(world,new BlockPos(pos.getX() + i,pos.getY()+20,pos.getZ() + j));
				}
			}
		}
	}

	private void spawnAnvil(World world, BlockPos pos){
		if(world.isAirBlock(pos)){
			world.setBlockState(pos, Blocks.ANVIL.getDefaultState());
		}
	}

	private boolean isDisabled(IBlockState state){
		return state.getValue(ModStates.POWERED);
	}

	@Override
	public boolean onBlockActivated(World world, BlockPos pos, IBlockState state, EntityPlayer playerIn, EnumHand hand, ItemStack heldItem, EnumFacing side, float hitX, float hitY, float hitZ){
		if(!world.isRemote){
			if(getMetaFromState(state) == 0){
				world.setBlockState(pos, state.withProperty(ModStates.POWERED, true),3);
			}else{
				world.setBlockState(pos, state.withProperty(ModStates.POWERED, false),3);
			}
		}
		return true;
    }

	@Override
	protected BlockStateContainer createBlockState(){
		return new BlockStateContainer(this, new IProperty[] {ModStates.MACTYPE,ModStates.POWERED});
	}

	@Override
	public int getMetaFromState(IBlockState state) {
		MachineTypes type = (MachineTypes) state.getValue(ModStates.MACTYPE);
		return type.getID();

	}

	@Override
	public IBlockState getStateFromMeta(int meta) {
		return this.getDefaultState().withProperty(ModStates.MACTYPE, ModStates.MachineTypes.values()[meta]);

	}

}