extends SceneTree

const ORIGINAL_JUMP_INTENSITY := 430.0
const GRAVITY := 1200.0

var failures: Array[String] = []


func _init() -> void:
	var scene: PackedScene = load("res://scenes/characters/player.tscn")
	if scene == null:
		push_error("Could not load player.tscn")
		quit(1)
		return
	
	var player: Node = scene.instantiate()
	var jump_intensity: float = float(player.get("jump_intensity"))
	var expected_height: float = _jump_height(ORIGINAL_JUMP_INTENSITY) * 0.5
	var actual_height: float = _jump_height(jump_intensity)
	
	if absf(actual_height - expected_height) > 0.01:
		failures.append("jump height expected %.3f, got %.3f from jump_intensity %.3f" % [
			expected_height,
			actual_height,
			jump_intensity,
		])
	
	player.free()
	
	if failures.is_empty():
		print("PASS jump height")
		quit(0)
	else:
		for failure: String in failures:
			push_error(failure)
		quit(1)


func _jump_height(jump_intensity: float) -> float:
	return jump_intensity * jump_intensity / (2.0 * GRAVITY)