misc fixes

core/src/mindustry/entities/EntityCollisions.java

@@ -121,13 +121,9 @@ public class EntityCollisions{
 
     @SuppressWarnings("unchecked")
     public <T extends Hitboxc> void updatePhysics(EntityGroup<T> group){
-        var tree = group.tree();
-        tree.clear();
+        group.tree().fill(group.rawSeq());
 
-        group.each(s -> {
-            s.updateLastPosition();
-            tree.insert(s);
-        });
+        group.each(Hitboxc::updateLastPosition);
     }
 
     public static boolean legsSolid(int x, int y){

core/src/mindustry/entities/EntityGroup.java

@@ -217,6 +217,10 @@ public class EntityGroup<T extends Entityc> implements Iterable<T>{
         return tree;
     }
 
+    public Seq<T> rawSeq(){
+        return array;
+    }
+
     /** Resizes the internal quadtree, if it is enabled.*/
     public void resize(float x, float y, float w, float h){
         if(tree != null){

core/src/mindustry/input/InputHandler.java

@@ -887,10 +887,7 @@ public abstract class InputHandler implements InputProcessor, GestureListener{
     }
 
     public void updateSelectQuadtree(){
-        selectPlanTree.clear();
-        for(var plan : selectPlans){
-            selectPlanTree.insert(plan);
-        }
+        selectPlanTree.fill(selectPlans);
     }
 
     /** Adds an input lock; if this function returns true, input is locked. Used for mod 'cutscenes' or custom camera panning. */
@@ -1406,10 +1403,7 @@ public abstract class InputHandler implements InputProcessor, GestureListener{
                         plan.animScale = prev.animScale;
                     }
                 }
-                player.previewPlanTree.clear();
-                for(BuildPlan plan : plans){
-                    player.previewPlanTree.insert(plan);
-                }
+                player.previewPlanTree.fill(plans);
             }
 
             BuildPlan current = player.isBuilder() ? player.unit().buildPlan() : null;