added a way to check if no power system is loaded

This will make is possible for mods using the lib to just check if a
power system they can use it loaded.

src/minecraft/dark/library/DarkMain.java

@@ -6,7 +6,6 @@ import java.util.logging.Logger;
 
 import net.minecraft.world.World;
 import net.minecraftforge.common.Configuration;
-import universalelectricity.core.UniversalElectricity;
 import universalelectricity.core.vector.Vector3;
 import basiccomponents.common.BasicComponents;
 import cpw.mods.fml.client.FMLClientHandler;
@@ -15,10 +14,8 @@ import dark.library.effects.FXBeam;
 
 public class DarkMain
 {
-	private static boolean isInit = false;
-
+	private static boolean loadedItems = false;
 	
-	public static boolean runPowerLess = true; 
 	/* RESOURCE FILE PATHS */
 	public static final String RESOURCE_PATH = "/mods/dark/";
 	public static final String TEXTURE_DIRECTORY = RESOURCE_PATH + "textures/";
@@ -32,6 +29,17 @@ public class DarkMain
 
 	public static final Logger LOGGER = Logger.getLogger("Dark-Lib");
 
+	
+
+	/**
+	 * Renders a laser beam from one power to another by a set color for a set time
+	 * 
+	 * @param world - world this laser is to be rendered in
+	 * @param position - start vector3
+	 * @param target - end vector3
+	 * @param color - color of the beam
+	 * @param age - life of the beam in 1/20 secs
+	 */
 	public static void renderBeam(World world, Vector3 position, Vector3 target, Color color, int age)
 	{
 		if (world.isRemote)
@@ -40,6 +48,9 @@ public class DarkMain
 		}
 	}
 
+	/**
+	 * Renders a bullet tracer from one spot to another will later be replaced with start and degree
+	 */
 	public static void renderTracer(World world, Vector3 position, Vector3 target)
 	{
 		if (world.isRemote)
@@ -48,11 +59,14 @@ public class DarkMain
 		}
 	}
 
+	/**
+	 * Loads most of the items from basic components to be used
+	 */
 	public static void forceLoadBCItems(Object mod, String channel)
 	{
 		BasicComponents.register(mod, channel);
 
-		if (!isInit)
+		if (!loadedItems)
 		{
 			// UniversalElectricity.CONFIGURATION.load();
 			BasicComponents.requestItem("ingotCopper", 0);
@@ -79,7 +93,7 @@ public class DarkMain
 			BasicComponents.registerInfiniteBattery(0);
 			BasicComponents.registerBattery(0);
 
-			isInit = true;
+			loadedItems = true;
 		}
 	}
 }

src/minecraft/dark/library/PowerSystems.java

@@ -0,0 +1,40 @@
+package dark.library;
+
+import cpw.mods.fml.common.Loader;
+
+public enum PowerSystems
+{
+	INDUSTRIALCRAFT("IC2"), MEKANISM("Mekanism"), BUILDCRAFT("BuildCraft|Energy");
+	public String id;
+
+	private PowerSystems(String id)
+	{
+		this.id = id;
+	}
+	
+	/**
+	 * Checks to see if something can run powerless based on mods loaded
+	 * 
+	 * @param optional - power system that the device can use
+	 * @return true if free power is to be generated
+	 */
+	public static boolean runPowerLess(PowerSystems... optional)
+	{
+		for (int i = 0; i < optional.length; i++)
+		{
+			if (isPowerSystemLoaded(optional[i]))
+			{
+				return false;
+			}
+		}
+		return true;
+	}
+
+	/**
+	 * Check to see if one of the mods listed in the PowerSystem enum is loaded
+	 */
+	public static boolean isPowerSystemLoaded(PowerSystems power)
+	{
+		return power != null && Loader.isModLoaded(power.id);
+	}
+}

src/minecraft/dark/library/terminal/TileEntityTerminal.java

@@ -19,7 +19,7 @@ import com.google.common.io.ByteArrayDataInput;
 
 import cpw.mods.fml.common.FMLLog;
 import cpw.mods.fml.common.network.PacketDispatcher;
-import dark.library.DarkMain;
+import dark.library.PowerSystems;
 import dark.library.access.AccessLevel;
 import dark.library.access.UserAccess;
 import dark.library.access.interfaces.ISpecialAccess;
@@ -63,7 +63,7 @@ public abstract class TileEntityTerminal extends TileEntityUniversalRunnable imp
 	public void updateEntity()
 	{
 		super.updateEntity();
-		if (DarkMain.runPowerLess)
+		if (PowerSystems.runPowerLess(PowerSystems.INDUSTRIALCRAFT, PowerSystems.BUILDCRAFT, PowerSystems.MEKANISM))
 		{
 			this.wattsReceived += this.getRequest().getWatts();
 		}