Add controller#getItem

src/main/java/refinedstorage/tile/TileDetector.java

@@ -51,12 +51,9 @@ public class TileDetector extends TileMachine implements ICompareConfig {
             boolean wasPowered = powered;
 
             if (slot != null) {
-                boolean foundAny = false;
+                ItemStack stack = controller.getItem(slot, compare);
-
-                for (ItemStack stack : controller.getItems()) {
-                    if (RefinedStorageUtils.compareStack(slot, stack, compare)) {
-                        foundAny = true;
 
+                if (stack != null) {
                     switch (mode) {
                         case MODE_UNDER:
                             powered = stack.stackSize < amount;
@@ -68,12 +65,7 @@ public class TileDetector extends TileMachine implements ICompareConfig {
                             powered = stack.stackSize > amount;
                             break;
                     }
-
+                } else {
-                        break;
-                    }
-                }
-
-                if (!foundAny) {
                     if (mode == MODE_UNDER && amount != 0) {
                         powered = true;
                     } else if (mode == MODE_EQUAL && amount == 0) {

src/main/java/refinedstorage/tile/controller/TileController.java

@@ -441,6 +441,16 @@ public class TileController extends TileBase implements IEnergyReceiver, ISynchr
         return newStack;
     }
 
+    public ItemStack getItem(ItemStack stack, int flags) {
+        for (ItemStack otherStack : items) {
+            if (RefinedStorageUtils.compareStack(otherStack, stack, flags)) {
+                return otherStack;
+            }
+        }
+
+        return null;
+    }
+
     public void setEnergyStored(int amount) {
         energy.setEnergyStored(amount);
     }