Combat base added

nodes/player_controller.gd

@@ -4,6 +4,8 @@ const SPEED = 192.0
 
 @export var dl_map: CombatMap
 
+signal combat_requested(attacker: Unit, defender: Unit)
+
 var _selected_unit: Unit = null
 var _target_pos: Vector2
 var _goal_pos: Vector2
@@ -16,7 +18,10 @@ func _unhandled_input(event: InputEvent) -> void:
 		var clicked_unit := _get_unit_at(world_pos)
 
 		if clicked_unit:
-			_select_unit(clicked_unit)
+			if _selected_unit and clicked_unit != _selected_unit:
+				combat_requested.emit(_selected_unit, clicked_unit)
+			else:
+				_select_unit(clicked_unit)
 			get_viewport().set_input_as_handled()
 		elif _selected_unit:
 			var snapped_pos := dl_map.snap_to_grid(world_pos)