gamelobby: restrict actions to agent player

gamelobby.go

@@ -16,6 +16,7 @@ type GameLobbyPlayer struct {
 
 type GameLobby struct {
 	lock    *sync.Mutex
+	agent   *GameLobbyPlayer
 	players map[string]*GameLobbyPlayer
 	playerOrder []string
 }
@@ -50,6 +51,7 @@ func (gl *GameLobby) Register(glp *Player) {
 	}
 	gl.players[glp.name] = p
 	gl.playerOrder = append(gl.playerOrder, p.name)
+	gl.agent = gl.players[gl.playerOrder[0]]
 	go gl.Loop(p)
 	gl.Update()
 	gl.Unlock()
@@ -59,6 +61,11 @@ func (gl *GameLobby) Register(glp *Player) {
 func (gl *GameLobby) Unregister(name string) {
 	gl.Lock()
 	gl.unregisterUnlocked(name)
+	if len(gl.playerOrder) > 0 {
+		gl.agent = gl.players[gl.playerOrder[0]]
+	} else {
+		gl.agent = nil
+	}
 	gl.Unlock()
 	glp := gs.players[name]
 	glp.Close()
@@ -116,16 +123,29 @@ func (gl *GameLobby) StartGame() {
 	NewGame(ps, []string{"base", "ext1"})
 }
 
+func (gl *GameLobby) agentAction(p *GameLobbyPlayer, key Key) {
+	switch key {
+	case keyReturn:
+		go gl.StartGame()
+	}
+}
+
+func (gl *GameLobby) patientAction(p *GameLobbyPlayer, key Key) {
+}
+
 func (gl *GameLobby) Loop(p *GameLobbyPlayer) {
 	for {
 		select {
 		case <-p.lobbyEvent:
 		case input := <-p.inputEvent:
 			key := toKey(input)
-			switch key {
-			case keyReturn:
-				// TODO only allow starting game for player #1
-				go gl.StartGame()
+			gl.Lock()
+			a := gl.agent
+			gl.Unlock()
+			if a == p {
+				gl.agentAction(p, key)
+			} else {
+				gl.patientAction(p, key)
 			}
 		}
 		select { // check kill before doing anything that may lock