extends SceneTree
var failures := 0
var checks := 0
func _initialize() -> void: call_deferred("run")
func check(ok: bool, message: String) -> void:
 checks += 1
 if not ok: failures += 1
 print("PASS " if ok else "FAIL ", message)
func run() -> void:
 var audio := ArenaAudio.new()
 root.add_child(audio)
 for local in [true,false]:
  for i in 8: audio.play_shot("shot_0", Vector3.ZERO, local)
 check(audio.shot_players.size() == 2, "shot players reused rather than allocated per shot")
 for player in audio.shot_players.values():
  check(player.max_polyphony == 3 and player.pitch_scale >= 0.95 and player.pitch_scale <= 1.05, "polyphony and pitch limits")
 var limited := false
 for i in AudioServer.get_bus_effect_count(0): limited = limited or AudioServer.get_bus_effect(0,i) is AudioEffectLimiter
 check(limited, "master limiter installed")
 for profile in WeaponHandling.DATA:
  var states := []
  for rate in [60,240]:
   var state: Array[Vector2] = [Vector2.ZERO, Vector2(profile.kick,profile.rise)*profile.spring*2.1]
   for tick in rate: state = WeaponHandling.settle(state[0],state[1],profile.spring,1.0/rate)
   states.append(state)
  check(states[0][0].distance_to(states[1][0]) < 0.00001, "recoil trajectory endpoint matches at 60/240 Hz")
 var stop := HitStop.new()
 root.add_child(stop)
 var started := Time.get_ticks_usec()
 stop.trigger()
 check(Engine.time_scale == 0.05, "hit-stop applies five percent")
 while stop.running: await process_frame
 var elapsed := (Time.get_ticks_usec()-started)/1000.0
 check(Engine.time_scale == 1.0 and elapsed >= 29 and elapsed < 100, "hit-stop restores on real-time deadline; ms="+str(elapsed))
 stop.trigger()
 stop.restore()
 check(Engine.time_scale == 1.0, "leaving restores time immediately")
 await create_timer(0.5, true, false, true).timeout
 var stage := Node3D.new()
 root.add_child(stage)
 var fighter := Fighter.new()
 fighter.add_child(fighter.movement)
 fighter.add_child(fighter.weapon_controller)
 fighter.add_child(fighter.replication_state)
 fighter.set_process(false)
 fighter.set_physics_process(false)
 stage.add_child(fighter)
 fighter.process_mode = Node.PROCESS_MODE_DISABLED
 var target := StaticBody3D.new()
 target.position = Vector3(0,0,-5)
 var box := BoxShape3D.new()
 var collider := CollisionShape3D.new()
 collider.shape = box
 target.add_child(collider)
 stage.add_child(target)
 await physics_frame
 await physics_frame
 var hit := HitscanRay.cast(fighter, Vector3.ZERO, Vector3(0,0,-10), 1)
 check(hit.get("collider") == target and fighter.get_node("HitscanRay") is RayCast3D, "RayCast3D hits world cover immediately")
 check(HitscanRay.cast(fighter, Vector3.ZERO, Vector3(0,5,-10), 1).is_empty(), "RayCast3D clears previous hit on miss")
 stage.queue_free()
 audio.queue_free()
 stop.queue_free()
 await process_frame
 print("POLISH RESULT ", checks-failures,"/",checks)
 quit(1 if failures else 0)