Changing Light Level, without changing the BlockID.

froschi3b · June 29, 2012

Hello everyone,

I lastly tried to make my mod with some custom furnaces into 1 BlockId. Everything works fine for now except for changing the light level.

I tried it with a MinecraftForge method already:

    public int getLightValue(IBlockAccess world,int  x,int y,int z){
    	TileEntityBFurnace tebf=(TileEntityBFurnace) world.getBlockTileEntity( x, y, z);
    	if (tebf!=null){
        	if (tebf.isActive){
        		return 14;
        	}
    	}
    	return 0;
    }

But it doesn't make light at all...

I tried to add a System.out.println() to show me if there'S no tileEntity, and then I get a ton of text saying there is not even a TileEntity there.

So, now I am totally confused.

Please help me, by telling me either how to do it, or how this method is supposed to be used.

Thanks, froschi3b

OvermindDL1 · June 29, 2012

You need to cause an update of your block so it recalculates, such as changing the metadata or so.

froschi3b · July 2, 2012

Tried it, but it didn't work. Please help, nothing is working. :'(

OvermindDL1 · July 2, 2012

Did not work is not descriptive at all. We need to see a complete and reproducible testcase.

froschi3b · July 5, 2012

It's as I say, I tried to update it but it didn't even give me light then (as i said.)

I don't want to know how to fix my problem, i need someone telling me how to add light values based on a tileEntity.

froschi3b · July 6, 2012

I now got it to work by adding 1 method and updating the light renderer:

public int getLightValue(IBlockAccess world,int  x,int y,int z){
    	TileEntityBFurnace tebf=getTileEntityaround(world,x,y,z);
    	if (tebf!=null){
        	if (tebf.isActive){
        		return 14;
        	}
    	}
    	return 0;
    }
    /**
     * Returns one of the TileEntityBFurnace around it.
     * Args: IBlockAccess,x,y,z
     */
    private TileEntityBFurnace getTileEntityaround(IBlockAccess world,int  x,int y,int z){
    	TileEntity te[]={world.getBlockTileEntity(x, y, z)
    			,world.getBlockTileEntity(x+1, y, z)
    			,world.getBlockTileEntity(x-1, y, z)
    			,world.getBlockTileEntity(x, y+1, z)
    			,world.getBlockTileEntity(x, y-1, z)
    			,world.getBlockTileEntity(x, y, z+1)
    			,world.getBlockTileEntity(x, y, z-1)};
    	int i=0;
    	while(i<te.length){
        	if ((te[i]!=null) && (te[i] instanceof TileEntityBFurnace)){
        		return (TileEntityBFurnace) te[i];
        	}
        	i++;
        }
    	return null;
    }

in my Block file, because you have to tell the light level to the blocks around it too,

and then called

this.worldObj.updateAllLightTypes(xCoord, yCoord, zCoord);

in my TileEntity on activation and deactivation

Just so everyone knows who wants to make a similar thing

OvermindDL1 · July 6, 2012

Ah, very nice, thanks for the information!

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Changing Light Level, without changing the BlockID.

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