Attack command support, still no pathfinding

core/src/mindustry/input/DesktopInput.java

@@ -675,15 +675,30 @@ public class DesktopInput extends InputHandler{
             }
         }else if(selectedUnits.size > 0){
             //move to location - TODO right click instead?
-
             //TODO all this needs to be synced, done with packets, etc
             Vec2 target = input.mouseWorld().cpy();
 
-            for(var sel : selectedUnits){
-                ((CommandAI)sel.controller()).commandPosition(target);
+            Teamc build = world.buildWorld(target.x, target.y);
+
+            if(build == null || build.team() == player.team()){
+                build = selectedEnemyUnit(target.x, target.y);
             }
 
-            Fx.moveCommand.at(target);
+            if(build != null && build.team() != player.team()){
+                for(var sel : selectedUnits){
+                    ((CommandAI)sel.controller()).commandTarget(build);
+                }
+
+                Fx.attackCommand.at(build);
+            }else{
+                for(var sel : selectedUnits){
+                    ((CommandAI)sel.controller()).commandPosition(target);
+                }
+
+                Fx.moveCommand.at(target);
+            }
+
+
         }
 
         return super.tap(x, y, count, button);

core/src/mindustry/input/InputHandler.java

@@ -1199,6 +1199,20 @@ public abstract class InputHandler implements InputProcessor, GestureListener{
         return tmpUnits.min(u -> u.isCommandable(), u -> u.dst(x, y) - u.hitSize/2f);
     }
 
+    public @Nullable Unit selectedEnemyUnit(float x, float y){
+        tmpUnits.clear();
+        float rad = 4f;
+
+        Seq<TeamData> data = state.teams.present;
+        for(int i = 0; i < data.size; i++){
+            if(data.items[i].team != player.team()){
+                data.items[i].tree().intersect(x - rad / 2f, y - rad / 2f, rad, rad, tmpUnits);
+            }
+        }
+
+        return tmpUnits.min(u -> u.dst(x, y) - u.hitSize/2f);
+    }
+
     public Seq<Unit> selectedCommandUnits(float x, float y, float w, float h){
         var tree = player.team().data().tree();
         tmpUnits.clear();