extends SceneTree
## Thrown-spear hit test. The bull's body sits on collision layer BULL, so a spear whose mask
## only covered WORLD flew straight through it — every throw whiffed, even against a stationary
## bull. This launches a spear dead-on at a still fake bull and asserts the projectile masks BULL
## and actually lands the hit. Run: godot --headless --script res://tests/matador_spear_test.gd

# physics_layers.gd is pure constants (safe to preload); spear_projectile.gd references the
# Settings autoload, whose global identifier isn't registered when a --script entry compiles its
# preloads — so it's loaded at runtime inside _run instead, once the autoloads exist.
const PhysicsLayers = preload("res://physics_layers.gd")

var _pass := 0
var _fail := 0


func _init() -> void:
	_run.call_deferred()


func _ok(c: bool, m: String) -> void:
	if c:
		_pass += 1
		print("  PASS: ", m)
	else:
		_fail += 1
		print("  FAIL: ", m)


func _run() -> void:
	# Stationary fake bull at the origin, on the BULL layer like the real one.
	var bull := CharacterBody3D.new()
	bull.collision_layer = PhysicsLayers.BULL
	bull.collision_mask = 0
	bull.add_to_group(&"player")
	bull.set_script(load("res://tests/_fake_bull.gd"))
	var bcs := CollisionShape3D.new()
	var bshape := CapsuleShape3D.new()
	bshape.radius = 0.6
	bshape.height = 1.4
	bcs.shape = bshape
	bull.add_child(bcs)
	root.add_child(bull)
	bull.global_position = Vector3.ZERO
	await physics_frame

	# Launch a spear flat, dead-on from 3 m out; low gravity so the short flight stays level.
	var spear_script := load("res://spear_projectile.gd")
	var mesh := (load("res://Spear.tscn") as PackedScene).instantiate() as Node3D
	root.add_child(mesh)
	var origin := Vector3(0.0, 0.0, -3.0)
	var spear := spear_script.launch(root, mesh, origin, Vector3(0.0, 0.0, 12.0), 0.05) as RigidBody3D

	_ok(spear.collision_mask & PhysicsLayers.BULL != 0, "spear masks the BULL layer (can collide with the bull)")

	for i in 90:
		await physics_frame
		if bull.hits >= 1:
			break

	_ok(bull.hits >= 1, "thrown spear hits a stationary bull")

	_finish()


func _finish() -> void:
	print("Results: %d passed, %d failed" % [_pass, _fail])
	quit(1 if _fail > 0 else 0)