BlockFlower.java

package net.minecraft.block;

import java.util.Random;
import net.minecraft.block.material.Material;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.world.World;

import net.minecraftforge.common.EnumPlantType;
import net.minecraftforge.common.ForgeDirection;
import net.minecraftforge.common.IPlantable;
import static net.minecraftforge.common.EnumPlantType.*;

public class BlockFlower extends Block implements IPlantable
{
    protected BlockFlower(int par1, int par2, Material par3Material)
    {
        super(par1, par3Material);
        this.blockIndexInTexture = par2;
        this.setTickRandomly(true);
        float var4 = 0.2F;
        this.setBlockBounds(0.5F - var4, 0.0F, 0.5F - var4, 0.5F + var4, var4 * 3.0F, 0.5F + var4);
        this.setCreativeTab(CreativeTabs.tabDecorations);
    }

    protected BlockFlower(int par1, int par2)
    {
        this(par1, par2, Material.plants);
    }

    /**
     * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
     */
    public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
    {
        return super.canPlaceBlockAt(par1World, par2, par3, par4) && canBlockStay(par1World, par2, par3, par4);
    }

    /**
     * Gets passed in the blockID of the block below and supposed to return true if its allowed to grow on the type of
     * blockID passed in. Args: blockID
     */
    protected boolean canThisPlantGrowOnThisBlockID(int par1)
    {
        return par1 == Block.grass.blockID || par1 == Block.dirt.blockID || par1 == Block.tilledField.blockID;
    }

    /**
     * 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
     */
    public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    {
        super.onNeighborBlockChange(par1World, par2, par3, par4, par5);
        this.checkFlowerChange(par1World, par2, par3, par4);
    }

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

    protected final void checkFlowerChange(World par1World, int par2, int par3, int par4)
    {
        if (!this.canBlockStay(par1World, par2, par3, par4))
        {
            this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
            par1World.setBlockWithNotify(par2, par3, par4, 0);
        }
    }

    /**
     * Can this block stay at this position.  Similar to canPlaceBlockAt except gets checked often with plants.
     */
    public boolean canBlockStay(World par1World, int par2, int par3, int par4)
    {
        Block soil = blocksList[par1World.getBlockId(par2, par3 - 1, par4)];
        return (par1World.getFullBlockLightValue(par2, par3, par4) >= 8 || par1World.canBlockSeeTheSky(par2, par3, par4)) && 
                (soil != null && soil.canSustainPlant(par1World, par2, par3 - 1, par4, ForgeDirection.UP, this));
    }

    /**
     * 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)
     */
    public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
    {
        return null;
    }

    /**
     * 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.
     */
    public boolean isOpaqueCube()
    {
        return false;
    }

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

    /**
     * The type of render function that is called for this block
     */
    public int getRenderType()
    {
        return 1;
    }

    @Override
    public EnumPlantType getPlantType(World world, int x, int y, int z)
    {
        if (blockID == crops.blockID        ) return Crop;
        if (blockID == deadBush.blockID     ) return Desert;
        if (blockID == waterlily.blockID    ) return Water;
        if (blockID == mushroomRed.blockID  ) return Cave;
        if (blockID == mushroomBrown.blockID) return Cave;
        if (blockID == netherStalk.blockID  ) return Nether;
        if (blockID == sapling.blockID      ) return Plains;
        if (blockID == melonStem.blockID    ) return Crop;
        if (blockID == pumpkinStem.blockID  ) return Crop;
        if (blockID == tallGrass.blockID    ) return Plains;
        return Plains;
    }

    @Override
    public int getPlantID(World world, int x, int y, int z)
    {
        return blockID;
    }

    @Override
    public int getPlantMetadata(World world, int x, int y, int z)
    {
        return world.getBlockMetadata(x, y, z);
    }
}