Hello! I just added a new flower to my mod, and it works perfectly except for the thing, that it can only be played on dirt and grass. How can I change it, so that it can only be placed on 2 custom blocks added by the same mod?

 

Thanks in advance

~Minecrafter1912(My MC-Forums username - derp)

If you rewrite your flower like a custom rendered block, you can use ... I think ...

This function you can use:

public void onBlockPlacedBy(World par1World, int x, int y, int z, EntityLiving par5EntityLiving, ItemStack par6ItemStack) 

And in, you can check for the block with the x, y-1, z coordinates...

world.getBlockId(x, y-1, z) == your_block.blockID

Like:

if(world.getBlockId(x, y-1, z) == Mod.CustomDirt.blockID){//DO NOTHING}
else if(world.getBlockId(x, y-1, z) == Mod.CustomGrass.blockID){//DO NOTHING}
else{//DESTROY BLOCK AND INSERT HIM BACK INTO PLAYERS INVENTORY}

How can I rewrite it as a custom rendered block? I tried what you said and it did nothing. My code:

package MoreDimensions.blocks;

import static net.minecraftforge.common.EnumPlantType.Plains;

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.EntityLiving;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
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 MoreDimensions.MoreDimensions;

public class SlimeFlower extends Block implements IPlantable
{
    public SlimeFlower(int par1, Material par2Material)
    {
        super(par1, par2Material);
        this.setTickRandomly(true);
        float f = 0.2F;
        this.setBlockBounds(0.5F - f, 0.0F, 0.5F - f, 0.5F + f, f * 3.0F, 0.5F + f);
    }

    public SlimeFlower(int id)
    {
        this(id, Material.plants);
    }

    public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
    {
        return super.canPlaceBlockAt(par1World, par2, par3, par4) && canBlockStay(par1World, par2, par3, par4);
    }

    public boolean canThisPlantGrowOnThisBlockID(int par1)
    {
        return par1 == MoreDimensions.slimeGrass.blockID || par1 == MoreDimensions.slimeDirt.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);
    }

    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    {
        this.checkFlowerChange(par1World, par2, par3, par4);
    }

    public 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.setBlockToAir(par2, par3, par4);
        }
    }

    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));
    }

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

    public boolean isOpaqueCube()
    {
        return false;
    }

    public boolean renderAsNormalBlock()
    {
        return false;
    }

    public int getRenderType()
    {
        return 1;
    }

    @Override
    public EnumPlantType getPlantType(World world, int x, int y, int z)
    {
        if (blockID == MoreDimensions.slimeFlower.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);
    }
    
    @Override
    public void registerIcons(IconRegister reg)
    {
    	this.blockIcon = reg.registerIcon("MoreDimensions:slimeFlower");
    }
    
    public void onBlockPlacedBy(World world, int x, int y, int z, EntityLiving entityliving, ItemStack itemstack, EntityPlayer player) 
    {
    	if(world.getBlockId(x, y - 1, z) == MoreDimensions.slimeGrass.blockID)
    	{
    	}
    	else if(world.getBlockId(x, y - 1, z) == MoreDimensions.slimeDirt.blockID)
    	{
    	}
    	else
    	{
    		world.setBlockToAir(x, y, z);
    		player.inventory.addItemStackToInventory(itemstack);
    	}
    }
}

Please, forget what I set! 

Is not problem there?

    public boolean canThisPlantGrowOnThisBlockID(int par1)
    {
        return par1 == MoreDimensions.slimeGrass.blockID || par1 == MoreDimensions.slimeDirt.blockID;
    }

The || (OR) operator ?

I replaced it with a & (don't know if this is the AND operator, but I assume it is) and it doesn't work. Is there a TileEntity or Renderer for plants?

I think you can create for plant the tile entity, and the renderer is from default game I think for roses/dandelions/etc

Now the question: How can I create a TileEntity for the flower?

Heh, this is the right question

Try in the FlowerClass:

    public TileEntity createNewTileEntity(World par1World)
    {
        return new TE_CustomFlower();
    }

And create the TE_CustomFlower class. Like this:

package yourpackage;
//make there all required imports (Shift+Ctrl+O)
public class TE_CustomFlower extends TileEntity{
//YOUR STUFF
}

 

I hope 

Still doesn't work

Try replace this:

    public boolean canThisPlantGrowOnThisBlockID(int par1)
    {
        return par1 == MoreDimensions.slimeGrass.blockID || par1 == MoreDimensions.slimeDirt.blockID;
    }

With this:

    
@Override
public boolean canThisPlantGrowOnThisBlockID(int par1)
    {
        return par1 == MoreDimensions.slimeGrass.blockID;
    }

And try place the flower on the slimeGrass

 

if it dont work try:

    
@Override
protected boolean canThisPlantGrowOnThisBlockID(int par1)
    {
        return par1 == MoreDimensions.slimeGrass.blockID;
    }

Ok now I rewrote the class, it now extends BlockFlower. I know have all unnecessary methods removed, and I added the

	@Override
    protected boolean canThisPlantGrowOnThisBlockID(int par1)
    {
        return par1 == MoreDimensions.slimeGrass.blockID || par1 == MoreDimensions.slimeDirt.blockID;
    }

and it worked. However, I can still place the flower on normal grass and dirt... Any workaround?

 

Whole class:

package MoreDimensions.blocks;

import static net.minecraftforge.common.EnumPlantType.Cave;
import static net.minecraftforge.common.EnumPlantType.Crop;
import static net.minecraftforge.common.EnumPlantType.Desert;
import static net.minecraftforge.common.EnumPlantType.Nether;
import static net.minecraftforge.common.EnumPlantType.Plains;
import static net.minecraftforge.common.EnumPlantType.Water;
import net.minecraft.block.Block;
import net.minecraft.block.BlockFlower;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.world.World;
import net.minecraftforge.common.EnumPlantType;
import MoreDimensions.MoreDimensions;

public class SlimeFlower extends BlockFlower
{

public SlimeFlower(int id)
{
	super(id);
	this.setCreativeTab(MoreDimensions.moreDimensions);
}

@Override
    protected boolean canThisPlantGrowOnThisBlockID(int par1)
    {
        return par1 == MoreDimensions.slimeGrass.blockID || par1 == MoreDimensions.slimeDirt.blockID;
    }

    @Override
    public EnumPlantType getPlantType(World world, int x, int y, int z)
    {
        if (blockID == MoreDimensions.slimeFlower.blockID) return Plains;
        return Plains;
    }
    
    @Override
    public void registerIcons(IconRegister reg)
    {
    	this.blockIcon = reg.registerIcon("MoreDimensions:slimeFlower");
    }
}

Removing the @Override annotion @ canThisPlantGrowOnThisBlockID doesn't do anything.

I'm using a block that extends BlockFlower, and I was curious about this, so I tried this code:

	@Override
protected boolean canThisPlantGrowOnThisBlockID(int par1)
    {
        return false;
    }

 

In my understanding, that should mean that it can't be place on any blocks, but even with this code it can still be placed on dirt and grass.

Anyone got a solution on how the flower can only be placed on my custom grass/dirt? At the moment it can be placed on them, but it can be placed on normal grass/dirt, too.

Anyone got a solution on how the flower can only be placed on my custom grass/dirt? At the moment it can be placed on them, but it can be placed on normal grass/dirt, too.

 

You need to override the method from SeaBass and also this one:

public boolean canBlockStay(World par1World, int x, int y, int z)

Get the block ID from the block below (y-1) and check if it's equal to your custom block(s).

 

My code (still doesn't work):

package MoreDimensions.blocks;

import static net.minecraftforge.common.EnumPlantType.Plains;
import net.minecraft.block.BlockFlower;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.world.World;
import net.minecraftforge.common.EnumPlantType;
import MoreDimensions.MoreDimensions;

public class SlimeFlower extends BlockFlower
{

public SlimeFlower(int id)
{
	super(id);
	this.setCreativeTab(MoreDimensions.moreDimensions);
}

@Override
    protected boolean canThisPlantGrowOnThisBlockID(int par1)
    {
        return false;
    }

    @Override
    public EnumPlantType getPlantType(World world, int x, int y, int z)
    {
        if (blockID == MoreDimensions.slimeFlower.blockID) return Plains;
        return Plains;
    }
    
    @Override
    public void registerIcons(IconRegister reg)
    {
    	this.blockIcon = reg.registerIcon("MoreDimensions:slimeFlower");
    }
    
    @Override
    public boolean canPlaceBlockAt(World world, int x, int y, int z)
    {	
    	if(world.getBlockId(x, y-1, z) == MoreDimensions.slimeGrass.blockID)
    	{
    	}
    	else if(world.getBlockId(x, y-1, z) == MoreDimensions.slimeDirt.blockID)
    	{
    	}
    	else
    	{
         world.setBlockToAir(x, y, z);{return true;}
    	}
	return true;
    }
}

I replaced it with a & (don't know if this is the AND operator, but I assume it is) and it doesn't work. Is there a TileEntity or Renderer for plants?

 

Note sure if this helps but it has to be double &, for example:

if(Bacon == "yum" && Cat == "Mao"){}

Sorry, what?

 @Override
    public boolean canPlaceBlockAt(World world, int x, int y, int z)
    {	
    	if(world.getBlockId(x, y-1, z) == MoreDimensions.slimeGrass.blockID)
    	{
    	}
    	else if(world.getBlockId(x, y-1, z) == MoreDimensions.slimeDirt.blockID)
    	{
    	}
    	else
    	{
         world.setBlockToAir(x, y, z);{return true;}
    	}
	return true;
    }

 

This appears to return true in every case. You want code that only returns true for your blocks, and returns false for everything else.

I changed the code to this:

    @Override
    public boolean canPlaceBlockAt(World world, int x, int y, int z)
    {	
    	if(world.getBlockId(x, y-1, z) == MoreDimensions.slimeGrass.blockID)
    	{
    		return true;
    	}
    	else if(world.getBlockId(x, y-1, z) == MoreDimensions.slimeDirt.blockID)
    	{
    		return true;
    	}
    	else
    	{
    		return false;
    	}
    }

and it works! Hell yeah! Thanks!