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I'm working on a mod that adds fruit trees and am having an issue with the leaf blocks.  Here's what I'm trying to do:

 

I want to create a leaf block that has fruit visible on it, when it has fruit, and when right-clicked with the shears drops the fruit as an item and changes texture so no fruit is visible

 

So, I created a leaf block with two textures- one with fruit and without, and that implemented IShearable.  Here's the problem(s):

 

1. The leaf block is using metadata outside of what I need for the fruit part.  As a result, the blocks sort of randomly have fruit sometimes, and sometimes not.  Does anyone know how leafblocks use metadata?  I've been trying to trace the code but have been having some difficulty as the variable names are less than informative.  If not, does anyone know if there's any bit in the metadata field that isn't used by leaf blocks?  I'm using bit 0 atm and it's not working.

 

2. Right clicking with the shears doesn't seem to trigger the IShearable event.  To do that, you have to left click with them, which destroys the block.  Does anyone know how to make a block respond to a right-click with the shears?

 

Thanks in advance.  I've included the class code for reference:

 

 

 

package tutorial.generic;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.stats.StatList;
import net.minecraft.util.Icon;
import net.minecraft.world.ColorizerFoliage;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import net.minecraft.block.BlockLeavesBase;
import net.minecraft.block.Block;

import net.minecraftforge.common.IShearable;

public class OrangeLeaves extends BlockLeavesBase implements IShearable
{
    public static final String[] LEAF_TYPES = new String[] {"bare", "fruit"};
    public static final String[][] field_94396_b = new String[][] {{"citrusleaf", "orangeleaf"},{"citrusleaf", "orangeleaf"}};
    @SideOnly(Side.CLIENT)
    private int field_94394_cP;
    private Icon[][] iconArray = new Icon[2][];
    int[] adjacentTreeBlocks;
    int hasFruit = 1;

    protected OrangeLeaves(int par1)
    {
        super(par1, Material.leaves, false);
        this.setTickRandomly(true);
        this.setCreativeTab(CreativeTabs.tabDecorations);
        this.setUnlocalizedName("orangeLeaves");
    }

    @SideOnly(Side.CLIENT)
    public int getBlockColor()
    {
        double d0 = 0.5D;
        double d1 = 1.0D;
        return ColorizerFoliage.getFoliageColor(d0, d1);
    }

    @SideOnly(Side.CLIENT)

    /**
     * Returns the color this block should be rendered. Used by leaves.
     */
    public int getRenderColor(int par1)
    {
        return (par1 & 3) == 1 ? ColorizerFoliage.getFoliageColorPine() : ((par1 & 3) == 2 ? ColorizerFoliage.getFoliageColorBirch() : ColorizerFoliage.getFoliageColorBasic());
    }

    @SideOnly(Side.CLIENT)

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

        if ((l & 3) == 1)
        {
            return ColorizerFoliage.getFoliageColorPine();
        }
        else if ((l & 3) == 2)
        {
            return ColorizerFoliage.getFoliageColorBirch();
        }
        else
        {
            int i1 = 0;
            int j1 = 0;
            int k1 = 0;

            for (int l1 = -1; l1 <= 1; ++l1)
            {
                for (int i2 = -1; i2 <= 1; ++i2)
                {
                    int j2 = par1IBlockAccess.getBiomeGenForCoords(par2 + i2, par4 + l1).getBiomeFoliageColor();
                    i1 += (j2 & 16711680) >> 16;
                    j1 += (j2 & 65280) >> 8;
                    k1 += j2 & 255;
                }
            }

            return (i1 / 9 & 255) << 16 | (j1 / 9 & 255) << 8 | k1 / 9 & 255;
        }
    }

    /**
     * ejects contained items into the world, and notifies neighbours of an update, as appropriate
     */
    public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    {
        byte b0 = 1;
        int j1 = b0 + 1;

        if (par1World.checkChunksExist(par2 - j1, par3 - j1, par4 - j1, par2 + j1, par3 + j1, par4 + j1))
        {
            for (int k1 = -b0; k1 <= b0; ++k1)
            {
                for (int l1 = -b0; l1 <= b0; ++l1)
                {
                    for (int i2 = -b0; i2 <= b0; ++i2)
                    {
                        int j2 = par1World.getBlockId(par2 + k1, par3 + l1, par4 + i2);

                        if (Block.blocksList[j2] != null)
                        {
                            Block.blocksList[j2].beginLeavesDecay(par1World, par2 + k1, par3 + l1, par4 + i2);
                        }
                    }
                }
            }
        }
    }

    /**
     * Ticks the block if it's been scheduled
     */
    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    {
        if (!par1World.isRemote)
        {
            int l = par1World.getBlockMetadata(par2, par3, par4);

            if ((l)==0)
            {
            	if (par5Random.nextInt(5) == 0)
            	{
            		++l;
            		par1World.setBlockMetadataWithNotify(par2, par3, par4, l, 2);
            	}
            }
            
            if ((l &  != 0 && (l & 4) == 0)
            {
                byte b0 = 4;
                int i1 = b0 + 1;
                byte b1 = 32;
                int j1 = b1 * b1;
                int k1 = b1 / 2;

                if (this.adjacentTreeBlocks == null)
                {
                    this.adjacentTreeBlocks = new int[b1 * b1 * b1];
                }

                int l1;

                if (par1World.checkChunksExist(par2 - i1, par3 - i1, par4 - i1, par2 + i1, par3 + i1, par4 + i1))
                {
                    int i2;
                    int j2;
                    int k2;

                    for (l1 = -b0; l1 <= b0; ++l1)
                    {
                        for (i2 = -b0; i2 <= b0; ++i2)
                        {
                            for (j2 = -b0; j2 <= b0; ++j2)
                            {
                                k2 = par1World.getBlockId(par2 + l1, par3 + i2, par4 + j2);

                                Block block = Block.blocksList[k2];

                                if (block != null && block.canSustainLeaves(par1World, par2 + l1, par3 + i2, par4 + j2))
                                {
                                    this.adjacentTreeBlocks[(l1 + k1) * j1 + (i2 + k1) * b1 + j2 + k1] = 0;
                                }
                                else if (block != null && block.isLeaves(par1World, par2 + l1, par3 + i2, par4 + j2))
                                {
                                    this.adjacentTreeBlocks[(l1 + k1) * j1 + (i2 + k1) * b1 + j2 + k1] = -2;
                                }
                                else
                                {
                                    this.adjacentTreeBlocks[(l1 + k1) * j1 + (i2 + k1) * b1 + j2 + k1] = -1;
                                }
                            }
                        }
                    }

                    for (l1 = 1; l1 <= 4; ++l1)
                    {
                        for (i2 = -b0; i2 <= b0; ++i2)
                        {
                            for (j2 = -b0; j2 <= b0; ++j2)
                            {
                                for (k2 = -b0; k2 <= b0; ++k2)
                                {
                                    if (this.adjacentTreeBlocks[(i2 + k1) * j1 + (j2 + k1) * b1 + k2 + k1] == l1 - 1)
                                    {
                                        if (this.adjacentTreeBlocks[(i2 + k1 - 1) * j1 + (j2 + k1) * b1 + k2 + k1] == -2)
                                        {
                                            this.adjacentTreeBlocks[(i2 + k1 - 1) * j1 + (j2 + k1) * b1 + k2 + k1] = l1;
                                        }

                                        if (this.adjacentTreeBlocks[(i2 + k1 + 1) * j1 + (j2 + k1) * b1 + k2 + k1] == -2)
                                        {
                                            this.adjacentTreeBlocks[(i2 + k1 + 1) * j1 + (j2 + k1) * b1 + k2 + k1] = l1;
                                        }

                                        if (this.adjacentTreeBlocks[(i2 + k1) * j1 + (j2 + k1 - 1) * b1 + k2 + k1] == -2)
                                        {
                                            this.adjacentTreeBlocks[(i2 + k1) * j1 + (j2 + k1 - 1) * b1 + k2 + k1] = l1;
                                        }

                                        if (this.adjacentTreeBlocks[(i2 + k1) * j1 + (j2 + k1 + 1) * b1 + k2 + k1] == -2)
                                        {
                                            this.adjacentTreeBlocks[(i2 + k1) * j1 + (j2 + k1 + 1) * b1 + k2 + k1] = l1;
                                        }

                                        if (this.adjacentTreeBlocks[(i2 + k1) * j1 + (j2 + k1) * b1 + (k2 + k1 - 1)] == -2)
                                        {
                                            this.adjacentTreeBlocks[(i2 + k1) * j1 + (j2 + k1) * b1 + (k2 + k1 - 1)] = l1;
                                        }

                                        if (this.adjacentTreeBlocks[(i2 + k1) * j1 + (j2 + k1) * b1 + k2 + k1 + 1] == -2)
                                        {
                                            this.adjacentTreeBlocks[(i2 + k1) * j1 + (j2 + k1) * b1 + k2 + k1 + 1] = l1;
                                        }
                                    }
                                }
                            }
                        }
                    }
                }

                l1 = this.adjacentTreeBlocks[k1 * j1 + k1 * b1 + k1];

                if (l1 >= 0)
                {
                    par1World.setBlockMetadataWithNotify(par2, par3, par4, l & -9, 4);
                }
                else
                {
                    this.removeLeaves(par1World, par2, par3, par4);
                }
            }
        }
    }

    @SideOnly(Side.CLIENT)

    /**
     * A randomly called display update to be able to add particles or other items for display
     */
    public void randomDisplayTick(World par1World, int par2, int par3, int par4, Random par5Random)
    {
        if (par1World.canLightningStrikeAt(par2, par3 + 1, par4) && !par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) && par5Random.nextInt(15) == 1)
        {
            double d0 = (double)((float)par2 + par5Random.nextFloat());
            double d1 = (double)par3 - 0.05D;
            double d2 = (double)((float)par4 + par5Random.nextFloat());
            par1World.spawnParticle("dripWater", d0, d1, d2, 0.0D, 0.0D, 0.0D);
        }
    }

    private void removeLeaves(World par1World, int par2, int par3, int par4)
    {
        this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
        par1World.setBlockToAir(par2, par3, par4);
    }

    /**
     * Returns the quantity of items to drop on block destruction.
     */
    public int quantityDropped(Random par1Random)
    {
        return par1Random.nextInt(20) == 0 ? 1 : 0;
    }

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

    /**
     * Drops the block items with a specified chance of dropping the specified items
     */
    public void dropBlockAsItemWithChance(World par1World, int par2, int par3, int par4, int par5, float par6, int par7)
    {
        if (!par1World.isRemote)
        {
            int j1 = 20;

            if ((par5 & 3) == 3)
            {
                j1 = 40;
            }

            if (par7 > 0)
            {
                j1 -= 2 << par7;

                if (j1 < 10)
                {
                    j1 = 10;
                }
            }

            if (par1World.rand.nextInt(j1) == 0)
            {
                int k1 = this.idDropped(par5, par1World.rand, par7);
                this.dropBlockAsItem_do(par1World, par2, par3, par4, new ItemStack(k1, 1, this.damageDropped(par5)));
            }

            j1 = 200;

            if (par7 > 0)
            {
                j1 -= 10 << par7;

                if (j1 < 40)
                {
                    j1 = 40;
                }
            }

            if ((par5 & 3) == 0 && par1World.rand.nextInt(j1) == 0)
            {
                this.dropBlockAsItem_do(par1World, par2, par3, par4, new ItemStack(Generic.orangeFruit, 1, 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.
     */
    public void harvestBlock(World par1World, EntityPlayer par2EntityPlayer, int par3, int par4, int par5, int par6)
    {
        super.harvestBlock(par1World, par2EntityPlayer, par3, par4, par5, par6);
    }

    /**
     * Determines the damage on the item the block drops. Used in cloth and wood.
     */
    public int damageDropped(int par1)
    {
        return par1 & 3;
    }

    /**
     * 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 !this.graphicsLevel;
    }

    @SideOnly(Side.CLIENT)

    /**
     * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
     */
    public Icon getBlockTextureFromSideAndMetadata(int par1, int par2)
    {
    	return (par2&1)==1 ? this.iconArray[0][0] : this.iconArray[0][1];
        // return (par2 & 3) == 1 ? this.iconArray[this.field_94394_cP][1] : ((par2 & 3) == 3 ? this.iconArray[this.field_94394_cP][3] : this.iconArray[this.field_94394_cP][0]);
    }

    @SideOnly(Side.CLIENT)

    /**
     * Pass true to draw this block using fancy graphics, or false for fast graphics.
     */
    public void setGraphicsLevel(boolean par1)
    {
        this.graphicsLevel = par1;
        this.field_94394_cP = par1 ? 0 : 1;
    }

    @SideOnly(Side.CLIENT)

    /**
     * returns a list of blocks with the same ID, but different meta (eg: wood returns 4 blocks)
     */
    public void getSubBlocks(int par1, CreativeTabs par2CreativeTabs, List par3List)
    {
        par3List.add(new ItemStack(par1, 1, 0));
        par3List.add(new ItemStack(par1, 1, 1));
        //par3List.add(new ItemStack(par1, 1, 2));
        //par3List.add(new ItemStack(par1, 1, 3));
    }

    /**
     * Returns an item stack containing a single instance of the current block type. 'i' is the block's subtype/damage
     * and is ignored for blocks which do not support subtypes. Blocks which cannot be harvested should return null.
     */
    protected ItemStack createStackedBlock(int par1)
    {
        return new ItemStack(this.blockID, 1, par1 & 3);
    }

    @SideOnly(Side.CLIENT)

    /**
     * When this method is called, your block should register all the icons it needs with the given IconRegister. This
     * is the only chance you get to register icons.
     */
    public void registerIcons(IconRegister par1IconRegister)
    {
        for (int i = 0; i < field_94396_b.length; ++i)
        {
            this.iconArray[i] = new Icon[field_94396_b[i].length];

            for (int j = 0; j < field_94396_b[i].length; ++j)
            {
                this.iconArray[i][j] = par1IconRegister.registerIcon("Generic:"+field_94396_b[i][j]);
            }
        }
    }

    @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>();
        if ((world.getBlockMetadata(x, y, z)&1) == 1)
        {
        	world.setBlockMetadataWithNotify(x, y, z, 0, 2);
            ret.add(new ItemStack(this, 1, Generic.orangeFruit.itemID));
        }

        return ret;
    }

    @Override
    public void beginLeavesDecay(World world, int x, int y, int z)
    {
        world.setBlockMetadataWithNotify(x, y, z, world.getBlockMetadata(x, y, z) | 8, 4);
    }

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

 

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