class_name VesselGasBomberComponent
extends Node2D

var capability_id := "gas_bomber"
var cooldown_duration := 5.0
var cooldown_left := 0.0

const READY_COLOR := Color(1.0, 0.25, 0.78)
const COOLING_COLOR := Color(0.38, 0.16, 0.32)


func setup() -> void:
	queue_redraw()


func is_ready() -> bool:
	return cooldown_left <= 0.0


func consume_shot(duration: float) -> bool:
	if not is_ready():
		return false
	cooldown_duration = maxf(duration, 0.001)
	cooldown_left = cooldown_duration
	queue_redraw()
	return true


func tick(delta: float) -> void:
	if cooldown_left <= 0.0:
		return
	cooldown_left = maxf(cooldown_left - delta, 0.0)
	queue_redraw()


func cooldown_progress() -> float:
	return 1.0 - cooldown_left / maxf(cooldown_duration, 0.001)


func _draw() -> void:
	var parent_ship: Node = get_parent()
	var core: Color = parent_ship.core_color if parent_ship != null else Color.WHITE
	if is_ready():
		# Bright, complete halo: this bomber owns one available shot.
		NeonDraw.draw_glowing_circle(self, Vector2.ZERO, 31.0, READY_COLOR, 0.9, core)
		draw_circle(Vector2.ZERO, 4.0, Color(READY_COLOR, 0.5))
		return
	# A muted full ring says "not ready"; the bright arc fills clockwise so
	# the individual bomber also communicates how close it is to rearming.
	draw_arc(Vector2.ZERO, 31.0, 0.0, TAU, 48, Color(COOLING_COLOR, 0.65), 4.0, true)
	var progress := cooldown_progress()
	if progress > 0.001:
		draw_arc(Vector2.ZERO, 31.0, -PI / 2.0,
			-PI / 2.0 + TAU * progress, 48, Color(READY_COLOR, 0.92), 4.0, true)