extends ActiveAbility

const SCAN_DURATION := 8.0
const OVERLAY := preload("res://scripts/ui/scanner_overlay.gd")

func unavailable_reason(ship: CharacterBody2D) -> String:
	if ship.has_node("ScannerOverlay"):
		return "Skaner jest aktywny"
	return "Wymagane 50% energii" if float(ship.get("energy")) < float(ship.get("max_energy")) * 0.5 else ""

func activate(ship: CharacterBody2D) -> void:
	if not unavailable_reason(ship).is_empty():
		return
	ship.set("energy", float(ship.get("energy")) - float(ship.get("max_energy")) * 0.5)
	var layer := CanvasLayer.new()
	layer.name = "ScannerOverlay"
	layer.layer = 8
	ship.add_child(layer)
	var overlay := Control.new()
	overlay.set_script(OVERLAY)
	overlay.set("player", ship)
	overlay.set("remaining", SCAN_DURATION)
	layer.add_child(overlay)
	overlay.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)