prefRotation for units

core/src/mindustry/entities/comp/BuilderComp.java

@@ -27,7 +27,7 @@ abstract class BuilderComp implements Unitc{
 
     @Import float x, y, rotation;
 
-    @SyncLocal Queue<BuildPlan> plans = new Queue<>();
+    @SyncLocal Queue<BuildPlan> plans = new Queue<>(1);
     @SyncLocal transient boolean updateBuilding = true;
 
     @Override
@@ -35,7 +35,6 @@ abstract class BuilderComp implements Unitc{
         if(!updateBuilding) return;
 
         float finalPlaceDst = state.rules.infiniteResources ? Float.MAX_VALUE : buildingRange;
-
         boolean infinite = state.rules.infiniteResources || team().rules().infiniteResources;
 
         Iterator<BuildPlan> it = plans.iterator();
@@ -69,10 +68,6 @@ abstract class BuilderComp implements Unitc{
 
         Tile tile = world.tile(current.x, current.y);
 
-        if(within(tile, finalPlaceDst)){
-            lookAt(angleTo(tile));
-        }
-
         if(!(tile.block() instanceof ConstructBlock)){
             if(!current.initialized && !current.breaking && Build.validPlace(current.block, team(), current.x, current.y, current.rotation)){
                 boolean hasAll = infinite || !Structs.contains(current.block.requirements, i -> core != null && !core.items.has(i.item));
@@ -188,6 +183,10 @@ abstract class BuilderComp implements Unitc{
     }
 
     boolean activelyBuilding(){
+        //not actively building when not near the build plan
+        if(isBuilding() && !within(buildPlan(), state.rules.infiniteResources ? Float.MAX_VALUE : buildingRange)){
+            return false;
+        }
         return isBuilding() && updateBuilding;
     }