playerID

main.go

@@ -21,8 +21,11 @@ type Player struct {
 	X, Y int // Position on the game grid
 }
 
-var players = make(map[int]*Player)
-var actionQueue = make(map[int][]*pb.Action) // Queue to store actions for each player
+var (
+	players     = make(map[int]*Player)
+	actionQueue = make(map[int][]*pb.Action) // Queue to store actions for each player
+	playerConns = make(map[int]net.Conn)     // Map to store player connections
+)
 
 func main() {
 	ln, err := net.Listen("tcp", port)
@@ -47,7 +50,6 @@ func main() {
 	for {
 		if time.Since(lastTick) >= tickRate {
 			lastTick = time.Now()
-			// log.Printf("Last tick: %s", lastTick)
 			processActions()
 		}
 	}
@@ -59,6 +61,7 @@ func handleConnection(conn net.Conn) {
 	// Assign a new player ID and add the player to the game state
 	playerID := len(players) + 1
 	players[playerID] = &Player{ID: playerID, X: 5, Y: 5} // Start at default position
+	playerConns[playerID] = conn                          // Store the connection
 	fmt.Printf("Player %d connected\n", playerID)
 
 	// Send player ID to the client
@@ -82,6 +85,7 @@ func handleConnection(conn net.Conn) {
 		if err != nil {
 			log.Printf("Error reading from player %d: %v", playerID, err)
 			delete(players, playerID)
+			delete(playerConns, playerID) // Remove connection on error
 			return
 		}
 
@@ -97,6 +101,7 @@ func handleConnection(conn net.Conn) {
 }
 
 func processActions() {
+	// Update players based on queued actions
 	for playerID, actions := range actionQueue {
 		player := players[playerID]
 		for _, action := range actions {
@@ -106,6 +111,31 @@ func processActions() {
 				fmt.Printf("Player %d moved to (%d, %d)\n", playerID, player.X, player.Y)
 			}
 		}
-		actionQueue[playerID] = nil // Clear the queue after processing
+		actionQueue[playerID] = nil // Clear the action queue after processing
+	}
+
+	// Prepare and broadcast the positions of all players
+	for playerID := range players {
+		state := &pb.ServerMessage{}
+		for id, p := range players {
+			state.Players = append(state.Players, &pb.PlayerState{
+				PlayerId: int32(id),
+				X:        int32(p.X),
+				Y:        int32(p.Y),
+			})
+		}
+
+		data, err := proto.Marshal(state)
+		if err != nil {
+			log.Printf("Failed to marshal player state: %v", err)
+			continue
+		}
+
+		// Send to each connected player
+		for _, conn := range playerConns {
+			if _, err := conn.Write(data); err != nil {
+				log.Printf("Failed to send update to player %d: %v", playerID, err)
+			}
+		}
 	}
 }