implemented y-wing main cannon and effects.

Scripts/y_wing_main_cannon_laser.gd

@@ -0,0 +1,16 @@
+extends Area2D
+
+var speed = 2500
+
+
+func _physics_process(delta):
+	global_position.y += speed * delta
+	if global_position.y >= 980:
+		queue_free()
+
+
+
+func _on_area_entered(area):
+	if area is player:
+		area.take_damage(1)
+		queue_free()