class_name Arena
extends Node3D

# A reusable stadium: terrain, lighting, environment, two team goals, and
# spawn markers. An arena holds no rules and no state — game modes query it
# for spawn transforms and goals, then spawn ships/ball themselves.

# Per-arena Environment tuning. These live as exports (rather than baked
# into each arena's Environment sub-resource) because Godot's scene
# inheritance can only override whole top-level node properties, not
# properties nested inside a sub-resource — so each arena_0N.tscn overrides
# these on the Arena root instead, and _ready() applies them here.
@export var sky_material: Material
@export var ambient_light_color := Color(0.55, 0.6, 0.75, 1)
@export var ambient_light_energy := 0.4
@export var glow_intensity := 0.9
@export var glow_strength := 1.2
@export var glow_bloom := 0.05
@export var glow_hdr_threshold := 1.0


func _ready():
	add_to_group("arena")
	var world_env := get_node_or_null("WorldEnvironment") as WorldEnvironment
	if world_env and world_env.environment:
		var env := world_env.environment
		if sky_material:
			if not env.sky:
				env.sky = Sky.new()
			env.sky.sky_material = sky_material
		env.ambient_light_color = ambient_light_color
		env.ambient_light_energy = ambient_light_energy
		env.glow_intensity = glow_intensity
		env.glow_strength = glow_strength
		env.glow_bloom = glow_bloom
		env.glow_hdr_threshold = glow_hdr_threshold
		VideoSettings.apply_to_environment(env)


func get_ball_spawn() -> Transform3D:
	return $BallSpawn.global_transform


func get_ship_spawns(team: int) -> Array[Transform3D]:
	var spawns: Array[Transform3D] = []
	var container := get_node_or_null("SpawnsTeam%d" % team)
	if container:
		for child in container.get_children():
			if child is Marker3D:
				spawns.append(child.global_transform)
	return spawns


func get_goals() -> Array[Goal]:
	var goals: Array[Goal] = []
	for child in get_children():
		if child is Goal:
			goals.append(child)
	return goals