BlockFarmland.java

package net.minecraft.block;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import java.util.Random;
import net.minecraft.block.material.Material;
import net.minecraft.entity.Entity;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.world.World;

import net.minecraftforge.common.ForgeDirection;
import net.minecraftforge.common.IPlantable;

public class BlockFarmland extends Block
{
    protected BlockFarmland(int par1)
    {
        super(par1, Material.ground);
        this.blockIndexInTexture = 87;
        this.setTickRandomly(true);
        this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.9375F, 1.0F);
        this.setLightOpacity(255);
    }

    /**
     * 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 AxisAlignedBB.getAABBPool().addOrModifyAABBInPool((double)(par2 + 0), (double)(par3 + 0), (double)(par4 + 0), (double)(par2 + 1), (double)(par3 + 1), (double)(par4 + 1));
    }

    /**
     * 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;
    }

    /**
     * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
     */
    public int getBlockTextureFromSideAndMetadata(int par1, int par2)
    {
        return par1 == 1 && par2 > 0 ? this.blockIndexInTexture - 1 : (par1 == 1 ? this.blockIndexInTexture : 2);
    }

    /**
     * Ticks the block if it's been scheduled
     */
    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    {
        if (!this.isWaterNearby(par1World, par2, par3, par4) && !par1World.canLightningStrikeAt(par2, par3 + 1, par4))
        {
            int var6 = par1World.getBlockMetadata(par2, par3, par4);

            if (var6 > 0)
            {
                par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 - 1);
            }
            else if (!this.isCropsNearby(par1World, par2, par3, par4))
            {
                par1World.setBlockWithNotify(par2, par3, par4, Block.dirt.blockID);
            }
        }
        else
        {
            par1World.setBlockMetadataWithNotify(par2, par3, par4, 7);
        }
    }

    /**
     * Block's chance to react to an entity falling on it.
     */
    public void onFallenUpon(World par1World, int par2, int par3, int par4, Entity par5Entity, float par6)
    {
        if (!par1World.isRemote && par1World.rand.nextFloat() < par6 - 0.5F)
        {
            if (!(par5Entity instanceof EntityPlayer) && !par1World.getGameRules().getGameRuleBooleanValue("mobGriefing"))
            {
                return;
            }

            par1World.setBlockWithNotify(par2, par3, par4, Block.dirt.blockID);
        }
    }

    /**
     * returns true if there is at least one cropblock nearby (x-1 to x+1, y+1, z-1 to z+1)
     */
    private boolean isCropsNearby(World par1World, int par2, int par3, int par4)
    {
        byte var5 = 0;

        for (int var6 = par2 - var5; var6 <= par2 + var5; ++var6)
        {
            for (int var7 = par4 - var5; var7 <= par4 + var5; ++var7)
            {
                int var8 = par1World.getBlockId(var6, par3 + 1, var7);

                Block plant = blocksList[var8];
                if (plant instanceof IPlantable && canSustainPlant(par1World, par2, par3, par4, ForgeDirection.UP, (IPlantable)plant))
                {
                    return true;
                }
            }
        }

        return false;
    }

    /**
     * returns true if there's water nearby (x-4 to x+4, y to y+1, k-4 to k+4)
     */
    private boolean isWaterNearby(World par1World, int par2, int par3, int par4)
    {
        for (int var5 = par2 - 4; var5 <= par2 + 4; ++var5)
        {
            for (int var6 = par3; var6 <= par3 + 1; ++var6)
            {
                for (int var7 = par4 - 4; var7 <= par4 + 4; ++var7)
                {
                    if (par1World.getBlockMaterial(var5, var6, var7) == Material.water)
                    {
                        return true;
                    }
                }
            }
        }

        return false;
    }

    /**
     * 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);
        Material var6 = par1World.getBlockMaterial(par2, par3 + 1, par4);

        if (var6.isSolid())
        {
            par1World.setBlockWithNotify(par2, par3, par4, Block.dirt.blockID);
        }
    }

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

    @SideOnly(Side.CLIENT)

    /**
     * only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
     */
    public int idPicked(World par1World, int par2, int par3, int par4)
    {
        return Block.dirt.blockID;
    }
}