GameModeとGameStateとPlayerStateの関連について再度確認してみる。
毎回、
「GameModeはサーバーだけにしかなくて、GameStateは各端末毎に生成されるんだっけ？」
「PlayerStateは？PlayerControllerは？」
とその都度確認しているので再度確認してみる。
各クラスの概要
UE4のオフィシャルドキュメント。
簡単にまとめると以下の通り。
GameMode
- サーバーにしか存在しない
GameState
- 各マシン毎に存在
- PlayerArrayという変数でプレイヤ分のPlayerStateを保持
- Ownerは持たない（GetOwner()はnullptr）
PlayerState
- 全てのマシン上で、全てのプレイヤーに対してPlayerStateが存在
- OwnerはPlayerController（GetOwner()でPlayerControllerを返す）
PlayerController
- 操作しているPawnを所持（GetControlledPawn()で操作しているPawnが取得できる）
- Ownerは持たない（GetOwner()はnullptr）
Playerが操作しているPawn
- SpawnされてPossessされるとPlayerControllerに所有される
シングルプレイ、マルチプレイでの構成について確認してみる。
シングルプレイの場合
マルチプレイの場合
Server
Client1
Client2
確認
パーシスタントレベルにBPを組んでログで確認。
※BPのスクリーンショットは割愛
シングルプレイ
LogBlueprintUserMessages: [Test_Map_C_1] found GameMode : MyGameMode LogBlueprintUserMessages: [Test_Map_C_1] found GameState : MyGameState LogBlueprintUserMessages: [Test_Map_C_1] GameState : not found Owner LogBlueprintUserMessages: [Test_Map_C_1] found PlayerState : MyPlayerState LogBlueprintUserMessages: [Test_Map_C_1] found Owner : MyPlayerController LogBlueprintUserMessages: [Test_Map_C_1] PlayerController : not found Owner LogBlueprintUserMessages: [Test_Map_C_1] found GetControlledPawn : MyPlayerPawn LogBlueprintUserMessages: [Test_Map_C_1] locally controlled LogBlueprintUserMessages: [Test_Map_C_1] all actors > PlayerPawn : 1 LogBlueprintUserMessages: [Test_Map_C_1] Player : MyPlayer LogBlueprintUserMessages: [Test_Map_C_1] all actors > PlayerController : 1 LogBlueprintUserMessages: [Test_Map_C_1] player controller : MyPlayerController
マルチプレイ
Server
GameModeもGameStateもClinet含めたPlayerStateもPlayerController、PlayerPawnも全て生成されていることが確認できる。
PlayerPawnは必ずしも順番通りにはならいことに注意。
LogBlueprintUserMessages: [Test_Map_C_2] Server: found GameMode : MyGameMode LogBlueprintUserMessages: [Test_Map_C_2] Server: found GameState : MyGameState LogBlueprintUserMessages: [Test_Map_C_2] Server: GameState : not found Owner LogBlueprintUserMessages: [Test_Map_C_2] Server: found PlayerState MyPlayerState LogBlueprintUserMessages: [Test_Map_C_2] Server: found Owner : MyPlayerController LogBlueprintUserMessages: [Test_Map_C_2] Server: found GetControlledPawn : MyPlayerPawn LogBlueprintUserMessages: [Test_Map_C_2] Server: locally controlled LogBlueprintUserMessages: [Test_Map_C_2] Server: found PlayerState : MyPlayerState1 LogBlueprintUserMessages: [Test_Map_C_2] Server: found Owner : MyPlayerController1 LogBlueprintUserMessages: [Test_Map_C_2] Server: found GetControlledPawn : MyPlayrPawn1 LogBlueprintUserMessages: [Test_Map_C_2] Server: not locally controlled LogBlueprintUserMessages: [Test_Map_C_2] Server: found PlayerState : MyPlayerState2 LogBlueprintUserMessages: [Test_Map_C_2] Server: found Owner : MyPlayerController2 LogBlueprintUserMessages: [Test_Map_C_2] Server: found GetControlledPawn : MyPlayerPawn2 LogBlueprintUserMessages: [Test_Map_C_2] Server: not locally controlled LogBlueprintUserMessages: [Test_Map_C_2] Server: all actors > PlayerPawn : 3 LogBlueprintUserMessages: [Test_Map_C_2] Server: Player : MyPlayerPawn2 LogBlueprintUserMessages: [Test_Map_C_2] Server: Player : MyPlayerPawn LogBlueprintUserMessages: [Test_Map_C_2] Server: Player : MyPlayerPawn1 LogBlueprintUserMessages: [Test_Map_C_2] Server: all actors > PlayerController : 3 LogBlueprintUserMessages: [Test_Map_C_2] Server: player controller : MyPlayerController LogBlueprintUserMessages: [Test_Map_C_2] Server: player controller : MyPlayerController1 LogBlueprintUserMessages: [Test_Map_C_2] Server: player controller : MyPlayerController2
Client1
クライアントの場合はGameModeは生成されていない。
GameStateは生成されてPlayerArrayを回すとPlayerState自体はプレイヤー人数分取得できる。
PlayerControllerは自分のみ生成されている。
PlayerPawnはプレイヤー分生成されない。
実際に２人分のみが生成されていることが分かる。
他の端末との距離や表示範囲などで同期が必要ない場合はSpawnされない。
一定範囲や描画されるなどで同期が必要になったタイミングで初めてSpawnされる。
必ず同期取りたい場合はPawnのプロパティにAlwaysRelevantを有効にすることで必ず同期を取るようになるので最初にSpawnされるようになる。
LogBlueprintUserMessages: [Test_Map_C_2] Client 1: not found GameMode LogBlueprintUserMessages: [Test_Map_C_2] Client 1: found GameState : MyGameState LogBlueprintUserMessages: [Test_Map_C_2] Client 1: GameState : not found Owner LogBlueprintUserMessages: [Test_Map_C_2] Client 1: found PlayerState : MyPlayerState LogBlueprintUserMessages: [Test_Map_C_2] Client 1: not found Owner LogBlueprintUserMessages: [Test_Map_C_2] Client 1: found PlayerState : MyPlayerState1 LogBlueprintUserMessages: [Test_Map_C_2] Client 1: found Owner : MyPlayerController LogBlueprintUserMessages: [Test_Map_C_2] Client 1: found GetControlledPawn : PlayerPawn LogBlueprintUserMessages: [Test_Map_C_2] Client 1: locally controlled LogBlueprintUserMessages: [Test_Map_C_2] Client 1: found MyPlayerState : MyPlayerState2 LogBlueprintUserMessages: [Test_Map_C_2] Client 1: not found Owner LogBlueprintUserMessages: [Test_Map_C_2] Client 1: all actors > Player : 2 LogBlueprintUserMessages: [Test_Map_C_2] Client 1: Player : PlayerPawn LogBlueprintUserMessages: [Test_Map_C_2] Client 1: Player : PlayerPawn2 LogBlueprintUserMessages: [Test_Map_C_2] Client 1: all actors > PlayerController : 1 LogBlueprintUserMessages: [Test_Map_C_2] Client 1: player controller : MyPlayerController
AlwaysRelevantを有効にした場合は全員Spawnされている。
：
：
LogBlueprintUserMessages: [Test_Map_C_2] Client 2: all actors > PlayerPawn : 3
LogBlueprintUserMessages: [Test_Map_C_2] Client 2: Player : MyPlayerPawn
LogBlueprintUserMessages: [Test_Map_C_2] Client 2: Player : MyPlayerPawn1
LogBlueprintUserMessages: [Test_Map_C_2] Client 2: Player : MyPlayerPawn2
Client2
Clinet2も同様。
LogBlueprintUserMessages: [Test_Map_C_2] Client 2: not found GameMode LogBlueprintUserMessages: [Test_Map_C_2] Client 2: found GameState : MyGameState LogBlueprintUserMessages: [Test_Map_C_2] Client 2: GameState : not found Owner LogBlueprintUserMessages: [Test_Map_C_2] Client 2: found PlayerState : MyPlayerState LogBlueprintUserMessages: [Test_Map_C_2] Client 2: not found Owner LogBlueprintUserMessages: [Test_Map_C_2] Client 2: found PlayerState : MyPlayerState1 LogBlueprintUserMessages: [Test_Map_C_2] Client 2: not found Owner LogBlueprintUserMessages: [Test_Map_C_2] Client 2: found PlayerState : MyPlayerState2 LogBlueprintUserMessages: [Test_Map_C_2] Client 2: found Owner : MyPlayerController LogBlueprintUserMessages: [Test_Map_C_2] Client 2: found GetControlledPawn : MyPlayerPawn LogBlueprintUserMessages: [Test_Map_C_2] Client 2: locally controlled LogBlueprintUserMessages: [Test_Map_C_2] Client 2: all actors > PlayerPawn : 2 LogBlueprintUserMessages: [Test_Map_C_2] Client 2: Player : MyPlayerPawn LogBlueprintUserMessages: [Test_Map_C_2] Client 2: Player : MyPlayerPawn1 LogBlueprintUserMessages: [Test_Map_C_2] Client 2: all actors > PlayerController : 1 LogBlueprintUserMessages: [Test_Map_C_2] Client 2: player controller : MyPlayerController
