Summer Singleton

end_game() -> void
set_time_limit(seconds: float) -> void
get_time_remaining() -> float
get_players() -> Array
get_player_count() -> int
get_max_players() -> int
send_announcement(text: String) -> void
spawn_npc(scene: PackedScene, position: Vector3) -> SummerNPC
spawn_object(scene: PackedScene, position: Vector3) -> SummerObject
spawn_projectile(scene: PackedScene, origin: Vector3, direction: Vector3, speed: float) -> SummerObject
is_server() -> bool
is_client() -> bool

Summer.set_time_limit(300)
Summer.send_announcement("Round started")

if Summer.get_time_remaining() <= 0.0:
    Summer.end_game()

var players = Summer.get_players()
var current = Summer.get_player_count()
var max_players = Summer.get_max_players()

Summer.send_announcement("Sudden death starts now!")

var npc = Summer.spawn_npc(npc_scene, Vector3(0, 0, 0))
var pickup = Summer.spawn_object(pickup_scene, Vector3(2, 0, 2))
var projectile = Summer.spawn_projectile(bullet_scene, origin, direction, 30.0)

if Summer.is_server():
    # scoring, persistence, win conditions
    update_game_state()