BiomesOPlenty/common/biomesoplenty/blocks/BlockIvy.java

package biomesoplenty.blocks;

import java.util.ArrayList;
import java.util.Random;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.Direction;
import net.minecraft.world.ColorizerFoliage;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import net.minecraftforge.common.IShearable;
import biomesoplenty.BiomesOPlenty;
import biomesoplenty.asm.BOPBiomeColourBlending;

public class BlockIvy extends Block implements IShearable
{
	public BlockIvy(int par1)
	{
		super(par1, Material.vine);
		this.setTickRandomly(true);
		this.setCreativeTab(BiomesOPlenty.tabBiomesOPlenty);
	}

	@Override
	public void registerIcons(IconRegister par1IconRegister)
	{
		blockIcon = par1IconRegister.registerIcon("biomesoplenty:ivy");
	}

	/**
	 * Sets the block's bounds for rendering it as an item
	 */
	@Override
	public void setBlockBoundsForItemRender()
	{
		this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
	}

	/**
	 * The type of render function that is called for this block
	 */
	@Override
	public int getRenderType()
	{
		return 20;
	}

	/**
	 * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
	 * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
	 */
	@Override
	public boolean isOpaqueCube()
	{
		return false;
	}

	/**
	 * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
	 */
	@Override
	public boolean renderAsNormalBlock()
	{
		return false;
	}

	/**
	 * Updates the blocks bounds based on its current state. Args: world, x, y, z
	 */
	@Override
	public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
	{
		int var6 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
		float var7 = 1.0F;
		float var8 = 1.0F;
		float var9 = 1.0F;
		float var10 = 0.0F;
		float var11 = 0.0F;
		float var12 = 0.0F;
		boolean var13 = var6 > 0;

		if ((var6 & 2) != 0)
		{
			var10 = Math.max(var10, 0.0625F);
			var7 = 0.0F;
			var8 = 0.0F;
			var11 = 1.0F;
			var9 = 0.0F;
			var12 = 1.0F;
			var13 = true;
		}

		if ((var6 & 8) != 0)
		{
			var7 = Math.min(var7, 0.9375F);
			var10 = 1.0F;
			var8 = 0.0F;
			var11 = 1.0F;
			var9 = 0.0F;
			var12 = 1.0F;
			var13 = true;
		}

		if ((var6 & 4) != 0)
		{
			var12 = Math.max(var12, 0.0625F);
			var9 = 0.0F;
			var7 = 0.0F;
			var10 = 1.0F;
			var8 = 0.0F;
			var11 = 1.0F;
			var13 = true;
		}

		if ((var6 & 1) != 0)
		{
			var9 = Math.min(var9, 0.9375F);
			var12 = 1.0F;
			var7 = 0.0F;
			var10 = 1.0F;
			var8 = 0.0F;
			var11 = 1.0F;
			var13 = true;
		}

		if (!var13 && this.canBePlacedOn(par1IBlockAccess.getBlockId(par2, par3 + 1, par4)))
		{
			var8 = Math.min(var8, 0.9375F);
			var11 = 1.0F;
			var7 = 0.0F;
			var10 = 1.0F;
			var9 = 0.0F;
			var12 = 1.0F;
		}

		this.setBlockBounds(var7, var8, var9, var10, var11, var12);
	}

	/**
	 * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
	 * cleared to be reused)
	 */
	@Override
	public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
	{
		return null;
	}

	/**
	 * checks to see if you can place this block can be placed on that side of a block: BlockLever overrides
	 */
	@Override
	public boolean canPlaceBlockOnSide(World par1World, int par2, int par3, int par4, int par5)
	{
		switch (par5)
		{
		case 1:
			return this.canBePlacedOn(par1World.getBlockId(par2, par3 + 1, par4));

		case 2:
			return this.canBePlacedOn(par1World.getBlockId(par2, par3, par4 + 1));

		case 3:
			return this.canBePlacedOn(par1World.getBlockId(par2, par3, par4 - 1));

		case 4:
			return this.canBePlacedOn(par1World.getBlockId(par2 + 1, par3, par4));

		case 5:
			return this.canBePlacedOn(par1World.getBlockId(par2 - 1, par3, par4));

		default:
			return false;
		}
	}

	/**
	 * returns true if a vine can be placed on that block (checks for render as normal block and if it is solid)
	 */
	private boolean canBePlacedOn(int par1)
	{
		if (par1 == 0)
			return false;
		else
		{
			Block var2 = Block.blocksList[par1];
			return var2.renderAsNormalBlock() && var2.blockMaterial.blocksMovement();
		}
	}

	/**
	 * Returns if the vine can stay in the world. It also changes the metadata according to neighboring blocks.
	 */
	private boolean canVineStay(World par1World, int par2, int par3, int par4)
	{
		int var5 = par1World.getBlockMetadata(par2, par3, par4);
		int var6 = var5;

		if (var5 > 0)
		{
			for (int var7 = 0; var7 <= 3; ++var7)
			{
				int var8 = 1 << var7;

				if ((var5 & var8) != 0 && !this.canBePlacedOn(par1World.getBlockId(par2 + Direction.offsetX[var7], par3, par4 + Direction.offsetZ[var7])) && (par1World.getBlockId(par2, par3 + 1, par4) != blockID || (par1World.getBlockMetadata(par2, par3 + 1, par4) & var8) == 0))
				{
					var6 &= ~var8;
				}
			}
		}

		if (var6 == 0 && !this.canBePlacedOn(par1World.getBlockId(par2, par3 + 1, par4)))
			return false;
		else
		{
			if (var6 != var5)
			{
				par1World.setBlockMetadataWithNotify(par2, par3, par4, var6, 2);
			}

			return true;
		}
	}

	@Override
	public int getBlockColor()
	{
		return ColorizerFoliage.getFoliageColorBasic();
	}

	/**
	 * Returns the color this block should be rendered. Used by leaves.
	 */
	@Override
	public int getRenderColor(int par1)
	{
		return ColorizerFoliage.getFoliageColorBasic();
	}

	/**
	 * Returns a integer with hex for 0xrrggbb with this color multiplied against the blocks color. Note only called
	 * when first determining what to render.
	 */
	@Override
	public int colorMultiplier(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
	{
        return BOPBiomeColourBlending.getLeavesColourMultiplier(par1IBlockAccess, par2, par3, par4);
	}

	/**
	 * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
	 * their own) Args: x, y, z, neighbor blockID
	 */
	@Override
	public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
	{
		if (!par1World.isRemote && !this.canVineStay(par1World, par2, par3, par4))
		{
			this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
			par1World.setBlock(par2, par3, par4, 0);
		}
	}

	/**
	 * Ticks the block if it's been scheduled
	 */
	@Override
	public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
	{
	}

	/**
	 * called before onBlockPlacedBy by ItemBlock and ItemReed
	 */
	public void updateBlockMetadata(World par1World, int par2, int par3, int par4, int par5, float par6, float par7, float par8)
	{
		byte var9 = 0;

		switch (par5)
		{
		case 2:
			var9 = 1;
			break;

		case 3:
			var9 = 4;
			break;

		case 4:
			var9 = 8;
			break;

		case 5:
			var9 = 2;
		}

		if (var9 != 0)
		{
			par1World.setBlockMetadataWithNotify(par2, par3, par4, var9, 2);
		}
	}

	/**
	 * Called when a block is placed using its ItemBlock. Args: World, X, Y, Z, side, hitX, hitY, hitZ, block metadata
	 */
	@Override
	public int onBlockPlaced(World par1World, int par2, int par3, int par4, int par5, float par6, float par7, float par8, int par9)
	{
		byte b0 = 0;

		switch (par5)
		{
		case 2:
			b0 = 1;
			break;
		case 3:
			b0 = 4;
			break;
		case 4:
			b0 = 8;
			break;
		case 5:
			b0 = 2;
		}

		return b0 != 0 ? b0 : par9;
	}

	/**
	 * Returns the ID of the items to drop on destruction.
	 */
	@Override
	public int idDropped(int par1, Random par2Random, int par3)
	{
		return 0;
	}

	/**
	 * Returns the quantity of items to drop on block destruction.
	 */
	@Override
	public int quantityDropped(Random par1Random)
	{
		return 0;
	}

	/**
	 * Called when the player destroys a block with an item that can harvest it. (i, j, k) are the coordinates of the
	 * block and l is the block's subtype/damage.
	 */
	@Override
	public void harvestBlock(World par1World, EntityPlayer par2EntityPlayer, int par3, int par4, int par5, int par6)
	{
		super.harvestBlock(par1World, par2EntityPlayer, par3, par4, par5, par6);
	}

	@Override
	public boolean isShearable(ItemStack item, World world, int x, int y, int z)
	{
		return true;
	}

	@Override
	public ArrayList<ItemStack> onSheared(ItemStack item, World world, int x, int y, int z, int fortune)
	{
		ArrayList<ItemStack> ret = new ArrayList<ItemStack>();
		ret.add(new ItemStack(this, 1, 0));
		return ret;
	}

	@Override
	public boolean isBlockReplaceable(World world, int x, int y, int z)
	{
		return true;
	}

	@Override
	public boolean isLadder(World world, int x, int y, int z, EntityLivingBase entity)
	{
		return true;
	}
}