From 00bc546ec8a8fd4164368471f52b317e1b03a279 Mon Sep 17 00:00:00 2001
From: lc-1337 <62835225+lc-1337@users.noreply.github.com>
Date: Fri, 20 Feb 2026 17:02:05 +0200
Subject: [PATCH] red tint when something stuck in interface (#1078)

---
 .../render/blocks/RenderBlockInterface.java       | 11 ++++++++++-
 src/main/java/appeng/core/AEConfig.java           |  3 +++
 .../java/appeng/helpers/DualityInterface.java     | 12 +++++++++++-
 src/main/java/appeng/tile/misc/TileInterface.java | 15 +++++++++++++--
 4 files changed, 37 insertions(+), 4 deletions(-)

diff --git a/src/main/java/appeng/client/render/blocks/RenderBlockInterface.java b/src/main/java/appeng/client/render/blocks/RenderBlockInterface.java
index 0ec2e7ba4..77ac89380 100644
--- a/src/main/java/appeng/client/render/blocks/RenderBlockInterface.java
+++ b/src/main/java/appeng/client/render/blocks/RenderBlockInterface.java
@@ -19,6 +19,7 @@ import appeng.block.misc.BlockInterface;
 import appeng.client.render.BaseBlockRender;
 import appeng.client.render.BlockRenderInfo;
 import appeng.client.texture.ExtraBlockTextures;
+import appeng.core.AEConfig;
 import appeng.tile.misc.TileInterface;
 
 public class RenderBlockInterface extends BaseBlockRender<BlockInterface, TileInterface> {
@@ -44,7 +45,15 @@ public class RenderBlockInterface extends BaseBlockRender<BlockInterface, TileIn
                     side);
         }
 
-        final boolean fz = super.renderInWorld(block, world, x, y, z, renderer);
+        this.preRenderInWorld(block, world, x, y, z, renderer);
+        boolean fz;
+        if (AEConfig.instance.redTintWhenSomethingStuckInInterface && ti != null && ti.somethingStuck) {
+            fz = renderer.renderStandardBlockWithColorMultiplier(block, x, y, z, 0.75f, 0.5f, 0.5f);
+        } else {
+            fz = renderer.renderStandardBlock(block, x, y, z);
+        }
+
+        this.postRenderInWorld(renderer);
 
         info.setTemporaryRenderIcon(null);
 
diff --git a/src/main/java/appeng/core/AEConfig.java b/src/main/java/appeng/core/AEConfig.java
index f33741c98..251820d20 100644
--- a/src/main/java/appeng/core/AEConfig.java
+++ b/src/main/java/appeng/core/AEConfig.java
@@ -93,6 +93,7 @@ public final class AEConfig extends Configuration implements IConfigurableObject
     public boolean showContainerInteractionTooltips = true;
     public int MEMonitorableSmallSize = 6;
     public int InterfaceTerminalSmallSize = 6;
+    public boolean redTintWhenSomethingStuckInInterface = true;
 
     public boolean debugLogTiming = false;
     public boolean debugPathFinding = false;
@@ -351,6 +352,8 @@ public final class AEConfig extends Configuration implements IConfigurableObject
                 .get("Client", "showOnlyInterfacesWithFreeSlotsInInterfaceTerminal", false).getBoolean(false);
         this.showContainerInteractionTooltips = this.get("Client", "showContainerInteractionTooltips", true)
                 .getBoolean(true);
+        this.redTintWhenSomethingStuckInInterface = this.get("Client", "redTintWhenSomethingStuckInInterface", true)
+                .getBoolean(true);
         this.MEMonitorableSmallSize = this.get("Client", "MEMonitorableSmallSize", 6).getInt(6);
         this.InterfaceTerminalSmallSize = this.get("Client", "InterfaceTerminalSmallSize", 6).getInt(6);
         // load buttons..
diff --git a/src/main/java/appeng/helpers/DualityInterface.java b/src/main/java/appeng/helpers/DualityInterface.java
index b39a0ad21..e1b64411a 100644
--- a/src/main/java/appeng/helpers/DualityInterface.java
+++ b/src/main/java/appeng/helpers/DualityInterface.java
@@ -107,6 +107,7 @@ import appeng.tile.inventory.AppEngInternalAEInventory;
 import appeng.tile.inventory.AppEngInternalInventory;
 import appeng.tile.inventory.IAEAppEngInventory;
 import appeng.tile.inventory.InvOperation;
+import appeng.tile.misc.TileInterface;
 import appeng.tile.networking.TileCableBus;
 import appeng.util.ConfigManager;
 import appeng.util.IConfigManagerHost;
@@ -169,6 +170,7 @@ public class DualityInterface implements IGridTickable, IStorageMonitorable, IIn
     private int lastInputHash = 0;
     private final boolean isFluidInterface;
     private ScheduledReason scheduledReason = ScheduledReason.UNDEFINED;
+    public boolean somethingStuck = false;
 
     public DualityInterface(final AENetworkProxy networkProxy, final IInterfaceHost ih) {
         this.gridProxy = networkProxy;
@@ -774,10 +776,18 @@ public class DualityInterface implements IGridTickable, IStorageMonitorable, IIn
 
         if (this.waitingToSend.isEmpty()) {
             this.waitingToSend = null;
-        }
+            this.toggleTint(false);
+        } else this.toggleTint(true);
         return sentSomething;
     }
 
+    private void toggleTint(boolean stuck) {
+        if (stuck != this.somethingStuck && this.iHost instanceof TileInterface ti) {
+            this.somethingStuck = stuck;
+            ti.markForUpdate();
+        }
+    }
+
     private boolean updateStorage() {
         boolean didSomething = false;
 
diff --git a/src/main/java/appeng/tile/misc/TileInterface.java b/src/main/java/appeng/tile/misc/TileInterface.java
index 5ed4f6c7a..4c733ee2c 100644
--- a/src/main/java/appeng/tile/misc/TileInterface.java
+++ b/src/main/java/appeng/tile/misc/TileInterface.java
@@ -78,6 +78,7 @@ public class TileInterface extends AENetworkInvTile
     private static final int CHANNEL_FLAG = 2;
     private static final int BOOTING_FLAG = 4;
     private int clientFlags = 0; // sent as byte.
+    public boolean somethingStuck = false;
 
     @MENetworkEventSubscribe
     public void stateChange(final MENetworkChannelsChanged c) {
@@ -298,12 +299,21 @@ public class TileInterface extends AENetworkInvTile
     @TileEvent(TileEventType.NETWORK_READ)
     public boolean readFromStream_TileInterface(final ByteBuf data) {
         int newState = data.readByte();
+        boolean somethingChanged = false;
         if (newState != clientFlags) {
             clientFlags = newState;
             this.markForUpdate();
-            return true;
+            somethingChanged = true;
         }
-        return false;
+
+        final boolean oldSomethingStuck = this.somethingStuck;
+        this.somethingStuck = data.readBoolean();
+        if (oldSomethingStuck != somethingStuck) {
+            worldObj.markBlockRangeForRenderUpdate(xCoord, yCoord, zCoord, xCoord, yCoord, zCoord);
+            somethingChanged = true;
+        }
+
+        return somethingChanged;
     }
 
     @TileEvent(TileEventType.NETWORK_WRITE)
@@ -320,6 +330,7 @@ public class TileInterface extends AENetworkInvTile
         }
 
         data.writeByte(clientFlags);
+        data.writeBoolean(duality.somethingStuck);
     }
 
     @Override