120 lines
3.7 KiB
GDScript
120 lines
3.7 KiB
GDScript
extends Node2D
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var nakama_client: NakamaClient
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var nakama_session: NakamaSession
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var nakama_socket: NakamaSocket
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@export var player: Player
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var predicted_tick = 0
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var delta_counter = 0
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var bullet_lerp_factor := 0.0
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var bullets = []
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var current_match_id = ""
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func _ready() -> void:
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child_exiting_tree.connect(_on_child_exiting_tree)
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print("Attempting auth.")
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await attempt_auth()
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print("Attempting to create debug match.")
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await create_and_join_debug_match()
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nakama_socket.received_match_state.connect(self._on_match_state)
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func _process(delta: float) -> void:
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if current_match_id == "":
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return
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predict_tick_and_broadcast(delta)
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for bullet in bullets:
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var prev_pos = bullet.get_current_pos(predicted_tick)
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var next_pos = bullet.get_current_pos(predicted_tick + 1)
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var interpolated_pos = prev_pos.lerp(next_pos, bullet_lerp_factor)
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bullet.position = interpolated_pos
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if bullet.beyond_kill_boundary(predicted_tick):
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bullet.queue_free()
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func _on_match_state(p_state : NakamaRTAPI.MatchData):
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match p_state.op_code:
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2:
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var data = JSON.parse_string(p_state.data)
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# Set player position given server bounds-checking
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if data["forcePlayerPos"]:
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player.set_position_data(
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Vector2(
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float(data["playerPos"]["x"]),
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float(data["playerPos"]["y"])
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),
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float(data["playerPos"]["radius_multiplier"])
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)
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if int(data["deathTimer"]) > 0:
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print("server says u died")
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%Player.kill()
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# Spawn new bullets
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for b in data["newBullets"]:
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var bullet = DanmakuBullet.new()
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bullet.setup_bullet(
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int(b["class"]),
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int(b["tick"]),
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b["x"],
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b["y"],
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b["radius_multiplier"] * Globals.SERVER_SIZE.x,
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b["vel_x"],
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b["vel_y"])
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bullet.texture = load("res://test-bullet.png")
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bullet.position = bullet.get_current_pos(int(b["tick"]))
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# Reimplemented from ScalableSprite2D here atm
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var scale_ratio = ((b["radius_multiplier"] * 2) * Globals.SERVER_SIZE.x) / bullet.texture.get_width()
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bullet.scale = Vector2(scale_ratio, scale_ratio)
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add_child(bullet)
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bullets.append(bullet)
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predicted_tick = int(b["tick"])
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delta_counter = 0
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func attempt_auth() -> void:
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nakama_client = Nakama.create_client("defaultkey", "127.0.0.1", 7350, "http")
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nakama_session = await nakama_client.authenticate_device_async(OS.get_unique_id())
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nakama_socket = Nakama.create_socket_from(nakama_client)
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var connected: NakamaAsyncResult = await nakama_socket.connect_async(nakama_session)
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if connected.is_exception():
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print("An error occured when creating nakama socket: %s" % connected)
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return
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print("Oh baby we're ready.")
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func create_and_join_debug_match() -> void:
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var response: NakamaAPI.ApiRpc = await nakama_client.rpc_async(nakama_session, "manual_force_create_br_match_rpc")
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if response.is_exception():
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print("An error occurred when calling manual_force_create_br_match_rpc: %s" % response)
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return
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var debug_br_match: NakamaRTAPI.Match = await nakama_socket.join_match_async(response.payload)
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if debug_br_match.is_exception():
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print("An error occurred when joining debug BR match: %s" % response)
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return
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else:
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current_match_id = response.payload
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func predict_tick_and_broadcast(delta):
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delta_counter += delta
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# New tick (60 tick rate), broadcast player inputs
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var tick_time = 0.01666666666
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if delta_counter >= tick_time:
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predicted_tick += 1
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delta_counter -= tick_time
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var pos = get_node("../Player").position
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var json_string = JSON.stringify({"x": pos.x, "y": pos.y})
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nakama_socket.send_match_state_async(current_match_id, 0, json_string)
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bullet_lerp_factor = delta_counter / tick_time
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func _on_child_exiting_tree(node: DanmakuBullet):
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bullets.erase(node)
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