common/buildcraft/api/power/PowerFramework.java

/** 
 * Copyright (c) SpaceToad, 2011
 * http://www.mod-buildcraft.com
 * 
 * BuildCraft is distributed under the terms of the Minecraft Mod Public 
 * License 1.0, or MMPL. Please check the contents of the license located in
 * http://www.mod-buildcraft.com/MMPL-1.0.txt
 */

package buildcraft.api.power;

import net.minecraft.nbt.NBTTagCompound;

public abstract class PowerFramework {

	static private String baseNBTName = "net.minecraft.src.buildcarft.Power";

	public static PowerFramework currentFramework;

	public abstract IPowerProvider createPowerProvider();

	public void loadPowerProvider(IPowerReceptor receptor, NBTTagCompound compound) {

		IPowerProvider provider = createPowerProvider();

		if (compound.hasKey(baseNBTName)) {
			NBTTagCompound cpt = compound.getCompoundTag(baseNBTName);
			if (cpt.getString("class").equals(this.getClass().getName())) {
				provider.readFromNBT(cpt.getCompoundTag("contents"));
			}
		}

		receptor.setPowerProvider(provider);
	}

	public void savePowerProvider(IPowerReceptor receptor, NBTTagCompound compound) {

		IPowerProvider provider = receptor.getPowerProvider();

		if (provider == null)
			return;

		NBTTagCompound cpt = new NBTTagCompound();

		cpt.setString("class", this.getClass().getName());

		NBTTagCompound contents = new NBTTagCompound();

		provider.writeToNBT(contents);

		cpt.setTag("contents", contents);
		compound.setTag(baseNBTName, cpt);
	}

}