BlockTrampoline.java

package com.mrcrayfish.furniture.blocks;

import java.util.List;

import com.mrcrayfish.furniture.MrCrayfishFurnitureMod;
import com.mrcrayfish.furniture.init.FurnitureSounds;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyBool;
import net.minecraft.block.state.BlockStateContainer;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.util.BlockRenderLayer;
import net.minecraft.util.EnumParticleTypes;
import net.minecraft.util.SoundCategory;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import net.minecraft.world.WorldServer;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class BlockTrampoline extends Block 
{
	public static final PropertyBool BACK = PropertyBool.create("back");
	public static final PropertyBool FORWARD = PropertyBool.create("forward");
	public static final PropertyBool LEFT = PropertyBool.create("left");
	public static final PropertyBool RIGHT = PropertyBool.create("right");
	
	private static final AxisAlignedBB BOUNDING_BOX = new AxisAlignedBB(0.0, 0.0, 0.0, 1.0, 13 * 0.0625, 1.0);
	
	public BlockTrampoline(Material materialIn) 
	{
		super(materialIn);
		this.setHardness(0.5F);
		this.setDefaultState(this.blockState.getBaseState().withProperty(BACK, false).withProperty(FORWARD, false).withProperty(LEFT, false).withProperty(RIGHT, false));
		this.setCreativeTab(MrCrayfishFurnitureMod.tabFurniture);
	}
	
	@Override
	public boolean isOpaqueCube(IBlockState state)
	{
		return false;
	}

	@Override
	public boolean isFullCube(IBlockState state)
	{
		return false;
	}
	
	@Override
	public AxisAlignedBB getBoundingBox(IBlockState state, IBlockAccess source, BlockPos pos) 
	{
		return BOUNDING_BOX;
	}
	
	@Override
	public void addCollisionBoxToList(IBlockState state, World worldIn, BlockPos pos, AxisAlignedBB axisAligned, List<AxisAlignedBB> axisAlignedList, Entity collidingEntity) 
	{
		super.addCollisionBoxToList(pos, axisAligned, axisAlignedList, BOUNDING_BOX);
	}
	
	@Override
	public void onLanded(World worldIn, Entity entityIn) {}
	
	@Override
	public void onFallenUpon(World worldIn, BlockPos pos, Entity entityIn, float fallDistance) 
	{
		if(entityIn instanceof EntityLivingBase)
		{
			float height = entityIn.fallDistance;
			if(height > 0 && !entityIn.isSneaking()) 
			{
				if(height > 9) height = 9;
				entityIn.motionY = 0;
				entityIn.addVelocity(0, getRequiredVelocity(height + 1), 0);
				worldIn.playSound(pos.getX() + 0.5, pos.getY() + 0.5, pos.getZ() + 0.5, FurnitureSounds.boing, SoundCategory.BLOCKS, 0.75F, 1.0F, false);
				if(worldIn.isRemote)
				{
					for(int i = 0; i < 5; i++)
					{
						double offsetX = -0.1 + 0.2 * RANDOM.nextDouble();
						double offsetZ = -0.1 + 0.2 * RANDOM.nextDouble();
						worldIn.spawnParticle(EnumParticleTypes.SPELL_MOB, entityIn.posX, entityIn.posY, entityIn.posZ, 1, 1, 1, 0);
					}
				}
			}
			entityIn.fallDistance = 0;
		}
	}
	
	@Override
	public boolean addLandingEffects(IBlockState state, WorldServer worldObj, BlockPos blockPosition, IBlockState iblockstate, EntityLivingBase entity, int numberOfParticles) 
	{
		return true;
	}
	
	public double getRequiredVelocity(float height)
	{
		return Math.sqrt(0.22 * height);
	}
	
	@Override
	public IBlockState getActualState(IBlockState state, IBlockAccess world, BlockPos pos)
	{
		boolean forward = world.getBlockState(pos.north()).getBlock() == this;
		boolean back = world.getBlockState(pos.south()).getBlock() == this;
		boolean left = world.getBlockState(pos.west()).getBlock() == this;
		boolean right = world.getBlockState(pos.east()).getBlock() == this;
		return state.withProperty(BACK, back).withProperty(FORWARD, forward).withProperty(LEFT, left).withProperty(RIGHT, right);
	}
	
	@Override
	public int getMetaFromState(IBlockState state)
	{
		return 0;
	}
	
	@Override
	public IBlockState getStateFromMeta(int meta)
	{
		return this.getDefaultState();
	}
	
	@Override
	protected BlockStateContainer createBlockState()
	{
		return new BlockStateContainer(this, new IProperty[] { BACK, FORWARD, LEFT, RIGHT });
	}
	
	@SideOnly(Side.CLIENT)
	public BlockRenderLayer getBlockLayer()
	{
		return BlockRenderLayer.CUTOUT;
	}
}