godot multiplayer tutorial

https://www.youtube.com/watch?v=V4a_J38XdHk&ab_channel=BatteryAcidDev

game_managerからmultiplayer_managerのbecom_host,join_as_player_2を呼び出せる

multiplayer_+mangerはauto load

game_managerはUI発火からmultiplayer_manager becom_host, join_as_player_2を呼び出す

multiplayer_modeの時は何かをする際にmultiplayer_managerを参照、呼び出している

multiplayer_manager

EnetMultiplayerPeer.をserver_peerとしてnew()

code:gdscript

func become_host():

_players_spawn_node = get_tree().get_current_scene().get_node("Players")

multiplayer_mode_enabled = true

host_mode_enabled = true

var server_peer = ENetMultiplayerPeer.new()

# Nat越え対応してないね。

server_peer.create_server(SERVER_PORT)

multiplayer.multiplayer_peer = server_peer

# peer_connected,peer_disconnected signalとメソッドを接続

# クライアントが接続したら_add_player_to_gameを実行する。

multiplayer.peer_connected.connect(_add_player_to_game)

multiplayer.peer_disconnected.connect(_del_player)

# マルチプレイしない場合はシングルローカルプレイ用のplayer nodeを削除

_remove_single_player()

# dedicated serverでなければ、先ほど作成したhost中のserverに自身を追加

if not OS.has_feature("dedicated_server"):

_add_player_to_game(1)

func _add_player_to_game(id: int):

print("Player %s joined the game!" % id)

var player_to_add = multiplayer_scene.instantiate()

player_to_add.player_id = id

player_to_add.name = str(id)

_players_spawn_node.add_child(player_to_add, true)

multiplayer_controller

code:gdscript

func _apply_movement_from_input(delta):

# Add the gravity.

if not is_on_floor():

velocity.y += gravity * delta

# Handle jump.

if do_jump and is_on_floor():

velocity.y = JUMP_VELOCITY

do_jump = false

# Get the input direction: -1, 0, 1

# 肝の部分　InputSynchronizerのinput_directionから値を取得している点

# Synchronizerから同期される入力情報をみてキャラクターを動かしている

#

direction = %InputSynchronizer.input_direction

# Apply movement

if direction:

velocity.x = direction * SPEED

else:

velocity.x = move_toward(velocity.x, 0, SPEED)

move_and_slide()

InputSynchronizer

code:gdscript

extends MultiplayerSynchronizer

@onready var player = $".."

var input_direction

# Called when the node enters the scene tree for the first time.

func _ready():

if get_multiplayer_authority() != multiplayer.get_unique_id():

set_process(false)

set_physics_process(false)

input_direction = Input.get_axis("move_left", "move_right")

func _physics_process(delta):

input_direction = Input.get_axis("move_left", "move_right")

# Called every frame. 'delta' is the elapsed time since the previous frame.

func _process(delta):

if Input.is_action_just_pressed("jump"):

jump.rpc()

@rpc("call_local")

func jump():

if multiplayer.is_server():

player.do_jump = true