BloodMagic/1.7.10/main/java/WayofTime/alchemicalWizardry/common/tileEntity/TESpellBlock.java

package WayofTime.alchemicalWizardry.common.tileEntity;

import WayofTime.alchemicalWizardry.common.spell.complex.SpellParadigm;
import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.common.util.ForgeDirection;

public abstract class TESpellBlock extends TEOrientable
{
    public void modifySpellParadigm(SpellParadigm parad)
    {
        this.applySpellChange(parad);
        TileEntity tile = this.getTileAtOutput();
        if (tile instanceof TESpellBlock)
        {
            TESpellBlock outputBlock = (TESpellBlock) tile;
            outputBlock.modifySpellParadigm(parad);
        }
    }

    protected abstract void applySpellChange(SpellParadigm parad);

    public TESpellBlock getTileAtOutput()
    {
        ForgeDirection output = this.getOutputDirection();
        int xOffset = output.offsetX;
        int yOffset = output.offsetY;
        int zOffset = output.offsetZ;

        TileEntity tile = worldObj.getTileEntity(xCoord + xOffset, yCoord + yOffset, zCoord + zOffset);

        if (tile instanceof TESpellBlock && ((TESpellBlock) tile).canInputRecieveOutput(output))
        {
            return (TESpellBlock) tile;
        }

        return null;
    }

    public boolean canInputRecieve()
    {
        return true;
    }

    public boolean canInputRecieveOutput(ForgeDirection output)
    {
        return this.canInputRecieve() && this.getInputDirection().getOpposite() == output;
    }
}