Backport of fixed lighting + overflow crash fix

core/src/mindustry/graphics/LightRenderer.java

@@ -24,6 +24,10 @@ public class LightRenderer{
         lights.add(run);
     }
 
+    public void add(Position pos, float radius, Color color, float opacity){
+        add(pos.getX(), pos.getY(), radius, color, opacity);
+    }
+
     public void add(float x, float y, float radius, Color color, float opacity){
         if(!enabled()) return;
 
@@ -180,13 +184,14 @@ public class LightRenderer{
 
         Draw.color();
         buffer.beginDraw(Color.clear);
-        Draw.blend(Blending.normal);
+        Gl.blendEquationSeparate(Gl.funcAdd, Gl.max);
+
         for(Runnable run : lights){
             run.run();
         }
         Draw.reset();
-        Draw.blend();
         buffer.endDraw();
+        Gl.blendEquationSeparate(Gl.funcAdd, Gl.funcAdd);
 
         Draw.color();
         Shaders.light.ambient.set(state.rules.ambientLight);
@@ -196,4 +201,4 @@ public class LightRenderer{
 
         lights.clear();
     }
-}
+}

core/src/mindustry/world/blocks/distribution/OverflowGate.java

@@ -54,6 +54,11 @@ public class OverflowGate extends Block{
         }
 
         if(entity.lastItem != null){
+            if(entity.lastInput == null){
+                entity.lastItem = null;
+                return;
+            }
+
             entity.time += 1f / speed * Time.delta();
             Tile target = getTileTarget(tile, entity.lastItem, entity.lastInput, false);