Reduces visibility of internal fields/methods

Reduces the visibility of all fields to private and create setters/getters
when necessary. Exceptions are fields with GuiSync as these need to be
public.

Reduces the visibility of internal methods to private/protected/default when possible.

src/main/java/appeng/container/slot/OptionalSlotFake.java

@@ -26,19 +26,17 @@ import net.minecraft.item.ItemStack;
 public class OptionalSlotFake extends SlotFake
 {
 
-	public final int srcX;
-	public final int srcY;
-	final int invSlot;
-	final int groupNum;
-	final IOptionalSlotHost host;
-	public boolean renderDisabled = true;
+	private final int srcX;
+	private final int srcY;
+	private final int groupNum;
+	private final IOptionalSlotHost host;
+	private boolean renderDisabled = true;
 
 	public OptionalSlotFake( final IInventory inv, final IOptionalSlotHost containerBus, final int idx, final int x, final int y, final int offX, final int offY, final int groupNum )
 	{
 		super( inv, idx, x + offX * 18, y + offY * 18 );
 		this.srcX = x;
 		this.srcY = y;
-		this.invSlot = idx;
 		this.groupNum = groupNum;
 		this.host = containerBus;
 	}
@@ -69,7 +67,27 @@ public class OptionalSlotFake extends SlotFake
 	}
 
 	public boolean renderDisabled()
+	{
+		return this.isRenderDisabled();
+	}
+
+	private boolean isRenderDisabled()
 	{
 		return this.renderDisabled;
 	}
+
+	public void setRenderDisabled( final boolean renderDisabled )
+	{
+		this.renderDisabled = renderDisabled;
+	}
+
+	public int getSourceX()
+	{
+		return this.srcX;
+	}
+
+	public int getSourceY()
+	{
+		return this.srcY;
+	}
 }