extends Control

const FONT := preload("res://assets/fonts/font2.ttf")
const LOW_HULL_RATIO := 0.25
var player: CharacterBody2D
var _elapsed := 0.0

func _ready() -> void:
	mouse_filter = Control.MOUSE_FILTER_IGNORE
	set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)

func _process(delta: float) -> void:
	_elapsed += delta
	queue_redraw()

func _draw() -> void:
	if not is_instance_valid(player) or bool(player.get("_is_destroyed")):
		return
	var hull := float(player.get("hull"))
	var max_hull := maxf(1.0, float(player.get("max_hull")))
	if hull / max_hull > LOW_HULL_RATIO or bool(player.get("is_docked")):
		return
	var pulse := 0.55 + 0.25 * (sin(_elapsed * TAU) + 1.0) * 0.5
	var warning_color := Color(1.0, 0.32, 0.26, pulse)
	draw_rect(Rect2(Vector2(3, 3), size - Vector2(6, 6)), warning_color, false, 3)
	var warning := "NISKI KADŁUB — %d%%" % roundi(hull / max_hull * 100)
	draw_string(FONT, Vector2(0, 34), warning, HORIZONTAL_ALIGNMENT_CENTER, size.x, 18, warning_color)