added a Quick api

Need a way to detect belt for my Mining Machin mod so i added an
iterface to find each instance of a belt. As well what items are above
this belt, what direction its facing, and quick add entities to it
ignore list.

src/common/assemblyline/api/IBelt.java

@@ -0,0 +1,28 @@
+package assemblyline.api;
+
+import java.util.List;
+
+import net.minecraft.src.Entity;
+import net.minecraftforge.common.ForgeDirection;
+
+public interface IBelt {
+	/**
+	 * Gets the facing direction of the belt, used but other machines to know
+	 * which direction to start an item at
+	 * 
+	 * @return
+	 */
+	public ForgeDirection getFacing();
+	/**
+	 * Causes the belt to ignore the entity for a few updates
+	 * help in cases where another machine need to effect this entity
+	 * without the belt doing so as well.
+	 * @param entity - entity being ignored
+	 */
+	public void ignoreEntity(Entity entity);
+	/**
+	 * Used to get a list of entities above this belt
+	 * @return list of entities
+	 */
+	public List<Entity> getEntityAbove();
+}

src/common/assemblyline/api/IBotArm.java

@@ -0,0 +1,5 @@
+package assemblyline.api;
+
+public interface IBotArm {
+//TODO will add methods here to change the arms task, target, location,etc as need by other mods
+}

src/common/assemblyline/belts/TileEntityConveyorBelt.java

@@ -19,10 +19,11 @@ import universalelectricity.prefab.TileEntityElectricityReceiver;
 import universalelectricity.prefab.network.IPacketReceiver;
 import universalelectricity.prefab.network.PacketManager;
 import assemblyline.AssemblyLine;
+import assemblyline.api.IBelt;
 
 import com.google.common.io.ByteArrayDataInput;
 
-public class TileEntityConveyorBelt extends TileEntityElectricityReceiver implements IPacketReceiver
+public class TileEntityConveyorBelt extends TileEntityElectricityReceiver implements IPacketReceiver, IBelt
 {
 	/**
 	 * Joules required to run this thing.
@@ -124,10 +125,10 @@ public class TileEntityConveyorBelt extends TileEntityElectricityReceiver implem
 
 		if (this.running)
 		{
-			AxisAlignedBB bounds = AxisAlignedBB.getBoundingBox(this.xCoord, this.yCoord, this.zCoord, this.xCoord + 1, this.yCoord + 1, this.zCoord + 1);
+			
 			try
 			{
-				List<Entity> entityOnTop = worldObj.getEntitiesWithinAABB(Entity.class, bounds);
+				List<Entity> entityOnTop = this.getEntityAbove();
 
 				for (Entity entity : entityOnTop)
 				{
@@ -297,14 +298,6 @@ public class TileEntityConveyorBelt extends TileEntityElectricityReceiver implem
 
 	}
 
-	/**
-	 * Used to tell the belt not to apply velocity
-	 * to some Entity in case they are being
-	 * handled by another block. For example
-	 * Rejector
-	 * 
-	 * @param entity
-	 */
 	public void ignoreEntity(Entity entity)
 	{
 		if (!this.entityIgnoreList.contains(entity))
@@ -313,4 +306,16 @@ public class TileEntityConveyorBelt extends TileEntityElectricityReceiver implem
 		}
 
 	}
+
+	@Override
+	public ForgeDirection getFacing() {
+		
+		return ForgeDirection.getOrientation(this.getBeltDirection());
+	}
+	
+	public List<Entity> getEntityAbove()
+	{
+		AxisAlignedBB bounds = AxisAlignedBB.getBoundingBox(this.xCoord, this.yCoord, this.zCoord, this.xCoord + 1, this.yCoord + 1, this.zCoord + 1);
+		return worldObj.getEntitiesWithinAABB(Entity.class, bounds);
+	}
 }