Update License

Reviewed-on: #4

.gitignore

@@ -0,0 +1,13 @@
+# Build artifacts
+build/
+goonscape
+goonscape.exe
+
+# IDE files
+.vscode/
+.idea/
+*.swp
+
+# OS files
+.DS_Store
+Thumbs.db 

.woodpecker.yml

@@ -0,0 +1,25 @@
+pipeline:
+  build:
+    image: golang:1.23
+    commands:
+      # Install build dependencies
+      - apt-get update && apt-get install -y gcc-mingw-w64 cmake zip libasound2-dev mesa-common-dev libx11-dev libxrandr-dev libxi-dev xorg-dev libgl1-mesa-dev libglu1-mesa-dev libwayland-dev wayland-protocols libxkbcommon-dev
+      
+      # Build for all platforms
+      - make all
+    
+    when:
+      event: tag
+      tag: v*
+
+  # Optional: Create Gitea release with built artifacts
+  release:
+    image: plugins/gitea-release
+    settings:
+      api_key: 
+        from_secret: gitea_token
+      base_url: https://gitea.boner.be
+      files: build/*.zip
+    when:
+      event: tag
+      tag: v* 

LICENSE

@@ -1,11 +1,21 @@
-“Commons Clause” License Condition v1.0
+MIT License
 
-The Software is provided to you by the Licensor under the License, as defined below, subject to the following condition.
+Copyright (c) 2025 bdnugget
 
-Without limiting other conditions in the License, the grant of rights under the License will not include, and the License does not grant to you,  right to Sell the Software.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
 
-For purposes of the foregoing, “Sell” means practicing any or all of the rights granted to you under the License to provide to third parties, for a fee or other consideration (including without limitation fees for hosting or consulting/ support services related to the Software), a product or service whose value derives, entirely or substantially, from the functionality of the Software.  Any license notice or attribution required by the License must also include this Commons Cause License Condition notice.
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
 
-Software: GoonScape
-License: Commons Clause v1.0
-Licensor: bdnugget
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Makefile

@@ -3,7 +3,7 @@
 include scripts/platforms.mk
 
 BINARY_NAME=goonscape
-VERSION=1.0.0
+VERSION=1.1.0
 BUILD_DIR=build
 ASSETS_DIR=resources
 

README.md

@@ -16,24 +16,57 @@ A multiplayer isometric game inspired by Oldschool RuneScape, built with Go and
 ## Prerequisites
 
 - Go 1.23 or higher
+- GCC (for CGO/SQLite support)
+- OpenGL development libraries
 - Raylib dependencies (see [raylib-go](https://github.com/gen2brain/raylib-go#requirements))
 
 ## Installation
 
-1. Clone the repository:
+### Pre-built Binaries
+The easiest way to get started is to download the latest release from:
+```
+https://gitea.boner.be/bdnugget/goonscape/releases
+```
+Choose the appropriate zip file for your platform:
+- Windows: `goonscape-windows-amd64-v1.1.0.zip`
+- Linux: `goonscape-linux-amd64-v1.1.0.zip`
+
+Extract the zip and run the executable.
+
+### Quick Start
+For development:
+```bash
+# Run directly (recommended for development)
+go run main.go
+
+# Run with local server
+go run main.go -local
+```
+
+### Server Setup
+The server requires CGO for SQLite support:
+```bash
+# Enable CGO
+go env -w CGO_ENABLED=1
+
+# Clone and build server
+git clone https://gitea.boner.be/bdnugget/goonserver.git
+cd goonserver
+go build
+```
+
+### Client Installation
+Then install or build:
+```bash
+# Install the client
+go install gitea.boner.be/bdnugget/goonscape@latest
+```
+
+Or build from source:
 ```bash
 git clone https://gitea.boner.be/bdnugget/goonscape.git
 cd goonscape
-```
-
-2. Install dependencies:
-```bash
-go mod tidy
-```
-
-3. Build and run:
-```bash
-go run main.go
+go build
 ```
 
 ## Controls

build/linux/amd64/resources/models/coomer.mtl

@@ -1,12 +0,0 @@
-# Blender 3.6.0 MTL File: 'None'
-# www.blender.org
-
-newmtl Material.001
-Ns 250.000000
-Ka 1.000000 1.000000 1.000000
-Ks 0.500000 0.500000 0.500000
-Ke 0.000000 0.000000 0.000000
-Ni 1.450000
-d 1.000000
-illum 2
-map_Kd coomer.png

build/linux/amd64/resources/models/goonion.mtl

@@ -1,12 +0,0 @@
-# Blender 3.6.0 MTL File: 'None'
-# www.blender.org
-
-newmtl Material.001
-Ns 250.000000
-Ka 1.000000 1.000000 1.000000
-Ks 0.500000 0.500000 0.500000
-Ke 0.000000 0.000000 0.000000
-Ni 1.450000
-d 1.000000
-illum 2
-map_Kd goonion.png

build/linux/amd64/resources/models/shreke.mtl

@@ -1,12 +0,0 @@
-# Blender 3.6.0 MTL File: 'None'
-# www.blender.org
-
-newmtl Material.001
-Ns 250.000000
-Ka 1.000000 1.000000 1.000000
-Ks 0.500000 0.500000 0.500000
-Ke 0.000000 0.000000 0.000000
-Ni 1.450000
-d 1.000000
-illum 2
-map_Kd shreke.png

build/windows/amd64/resources/models/coomer.mtl

@@ -1,12 +0,0 @@
-# Blender 3.6.0 MTL File: 'None'
-# www.blender.org
-
-newmtl Material.001
-Ns 250.000000
-Ka 1.000000 1.000000 1.000000
-Ks 0.500000 0.500000 0.500000
-Ke 0.000000 0.000000 0.000000
-Ni 1.450000
-d 1.000000
-illum 2
-map_Kd coomer.png

build/windows/amd64/resources/models/goonion.mtl

@@ -1,12 +0,0 @@
-# Blender 3.6.0 MTL File: 'None'
-# www.blender.org
-
-newmtl Material.001
-Ns 250.000000
-Ka 1.000000 1.000000 1.000000
-Ks 0.500000 0.500000 0.500000
-Ke 0.000000 0.000000 0.000000
-Ni 1.450000
-d 1.000000
-illum 2
-map_Kd goonion.png

build/windows/amd64/resources/models/shreke.mtl

@@ -1,12 +0,0 @@
-# Blender 3.6.0 MTL File: 'None'
-# www.blender.org
-
-newmtl Material.001
-Ns 250.000000
-Ka 1.000000 1.000000 1.000000
-Ks 0.500000 0.500000 0.500000
-Ke 0.000000 0.000000 0.000000
-Ni 1.450000
-d 1.000000
-illum 2
-map_Kd shreke.png

game/chat.go

@@ -53,6 +53,7 @@ func (c *Chat) HandleServerMessages(messages []*pb.ChatMessage) {
 	for _, msg := range messages {
 		localMsg := types.ChatMessage{
 			PlayerID: msg.PlayerId,
+			Username: msg.Username,
 			Content:  msg.Content,
 			Time:     time.Unix(0, msg.Timestamp),
 		}
@@ -117,8 +118,14 @@ func (c *Chat) Draw(screenWidth, screenHeight int32) {
 
 	for i := startIdx; i < endIdx; i++ {
 		msg := c.messages[i]
-		text := fmt.Sprintf("[%d]: %s", msg.PlayerID, msg.Content)
-		rl.DrawText(text, int32(chatX)+5, int32(messageY), 20, rl.White)
+		var color rl.Color
+		if msg.PlayerID == 0 { // System message
+			color = rl.Gold
+		} else {
+			color = rl.White
+		}
+		text := fmt.Sprintf("%s: %s", msg.Username, msg.Content)
+		rl.DrawText(text, int32(chatX)+5, int32(messageY), 20, color)
 		messageY += messageHeight
 	}
 

game/game.go

@@ -5,6 +5,7 @@ import (
 	"time"
 
 	"gitea.boner.be/bdnugget/goonscape/assets"
+	"gitea.boner.be/bdnugget/goonscape/network"
 	"gitea.boner.be/bdnugget/goonscape/types"
 	pb "gitea.boner.be/bdnugget/goonserver/actions"
 	rl "github.com/gen2brain/raylib-go/raylib"
@@ -19,19 +20,13 @@ type Game struct {
 	Chat         *Chat
 	MenuOpen     bool
 	QuitChan     chan struct{} // Channel to signal shutdown
+	loginScreen  *LoginScreen
+	isLoggedIn   bool
 }
 
 func New() *Game {
 	InitWorld()
 	game := &Game{
-		Player: &types.Player{
-			PosActual:  rl.NewVector3(5*types.TileSize, 0, 5*types.TileSize),
-			PosTile:    GetTile(5, 5),
-			Speed:      50.0,
-			TargetPath: []types.Tile{},
-			UserData:   nil,
-			QuitDone:   make(chan struct{}),
-		},
 		OtherPlayers: make(map[int32]*types.Player),
 		Camera: rl.Camera3D{
 			Position:   rl.NewVector3(0, 10, 10),
@@ -42,8 +37,8 @@ func New() *Game {
 		},
 		Chat:        NewChat(),
 		QuitChan:    make(chan struct{}),
+		loginScreen: NewLoginScreen(),
 	}
-	game.Player.UserData = game
 	game.Chat.userData = game
 	return game
 }
@@ -64,6 +59,35 @@ func (g *Game) LoadAssets() error {
 }
 
 func (g *Game) Update(deltaTime float32) {
+	if !g.isLoggedIn {
+		username, password, isRegistering, submitted := g.loginScreen.Update()
+		if submitted {
+			conn, playerID, err := network.ConnectToServer(username, password, isRegistering)
+			if err != nil {
+				g.loginScreen.SetError(err.Error())
+				return
+			}
+
+			// Assign model based on player ID
+			modelIndex := int(playerID) % len(g.Models)
+			g.Player = &types.Player{
+				Speed:      50.0,
+				TargetPath: []types.Tile{},
+				UserData:   g,
+				QuitDone:   make(chan struct{}),
+				ID:         playerID,
+				Model:      g.Models[modelIndex].Model,
+				Texture:    g.Models[modelIndex].Texture,
+			}
+
+			go network.HandleServerCommunication(conn, playerID, g.Player, g.OtherPlayers, g.QuitChan)
+			g.isLoggedIn = true
+			return
+		}
+		g.loginScreen.Draw()
+		return
+	}
+
 	// Handle ESC for menu
 	if rl.IsKeyPressed(rl.KeyEscape) {
 		g.MenuOpen = !g.MenuOpen
@@ -174,11 +198,23 @@ func (g *Game) Render() {
 	rl.BeginDrawing()
 	rl.ClearBackground(rl.RayWhite)
 
+	if !g.isLoggedIn {
+		g.loginScreen.Draw()
+		rl.EndDrawing()
+		return
+	}
+
 	rl.BeginMode3D(g.Camera)
 	g.DrawMap()
 	g.DrawPlayer(g.Player, g.Player.Model)
 	for id, other := range g.OtherPlayers {
-		g.DrawPlayer(other, g.Models[int(id)%len(g.Models)].Model)
+		if other.Model.Meshes == nil {
+			// Assign model based on player ID for consistency
+			modelIndex := int(id) % len(g.Models)
+			other.Model = g.Models[modelIndex].Model
+			other.Texture = g.Models[modelIndex].Texture
+		}
+		g.DrawPlayer(other, other.Model)
 	}
 	rl.EndMode3D()
 
@@ -312,3 +348,7 @@ func (g *Game) Shutdown() {
 	rl.CloseWindow()
 	os.Exit(0)
 }
+
+func (g *Game) HandleServerMessages(messages []*pb.ChatMessage) {
+	g.Chat.HandleServerMessages(messages)
+}

game/login.go

@@ -0,0 +1,185 @@
+package game
+
+import (
+	rl "github.com/gen2brain/raylib-go/raylib"
+)
+
+type LoginScreen struct {
+	username      string
+	password      string
+	errorMessage  string
+	isRegistering bool
+	focusedField  int // 0 = username, 1 = password
+}
+
+func NewLoginScreen() *LoginScreen {
+	return &LoginScreen{}
+}
+
+func (l *LoginScreen) Draw() {
+	screenWidth := float32(rl.GetScreenWidth())
+	screenHeight := float32(rl.GetScreenHeight())
+
+	// Draw background
+	rl.DrawRectangle(0, 0, int32(screenWidth), int32(screenHeight), rl.RayWhite)
+
+	// Draw title
+	title := "GoonScape"
+	if l.isRegistering {
+		title += " - Register"
+	} else {
+		title += " - Login"
+	}
+	titleSize := int32(40)
+	titleWidth := rl.MeasureText(title, titleSize)
+	rl.DrawText(title, int32(screenWidth/2)-titleWidth/2, 100, titleSize, rl.Black)
+
+	// Draw input fields
+	inputWidth := float32(200)
+	inputHeight := float32(30)
+	inputX := screenWidth/2 - inputWidth/2
+
+	// Username field
+	rl.DrawRectangleRec(rl.Rectangle{
+		X: inputX, Y: 200,
+		Width: inputWidth, Height: inputHeight,
+	}, rl.LightGray)
+	rl.DrawText(l.username, int32(inputX)+5, 205, 20, rl.Black)
+	if l.focusedField == 0 {
+		rl.DrawRectangleLinesEx(rl.Rectangle{
+			X: inputX - 2, Y: 198,
+			Width: inputWidth + 4, Height: inputHeight + 4,
+		}, 2, rl.Blue)
+	}
+
+	// Password field
+	rl.DrawRectangleRec(rl.Rectangle{
+		X: inputX, Y: 250,
+		Width: inputWidth, Height: inputHeight,
+	}, rl.LightGray)
+	masked := ""
+	for range l.password {
+		masked += "*"
+	}
+	rl.DrawText(masked, int32(inputX)+5, 255, 20, rl.Black)
+	if l.focusedField == 1 {
+		rl.DrawRectangleLinesEx(rl.Rectangle{
+			X: inputX - 2, Y: 248,
+			Width: inputWidth + 4, Height: inputHeight + 4,
+		}, 2, rl.Blue)
+	}
+
+	// Draw error message
+	if l.errorMessage != "" {
+		msgWidth := rl.MeasureText(l.errorMessage, 20)
+		rl.DrawText(l.errorMessage, int32(screenWidth/2)-msgWidth/2, 300, 20, rl.Red)
+	}
+
+	// Draw buttons
+	buttonWidth := float32(100)
+	buttonHeight := float32(30)
+	buttonY := float32(350)
+
+	// Login/Register button
+	actionBtn := rl.Rectangle{
+		X:      screenWidth/2 - buttonWidth - 10,
+		Y:      buttonY,
+		Width:  buttonWidth,
+		Height: buttonHeight,
+	}
+	rl.DrawRectangleRec(actionBtn, rl.Blue)
+	actionText := "Login"
+	if l.isRegistering {
+		actionText = "Register"
+	}
+	actionWidth := rl.MeasureText(actionText, 20)
+	rl.DrawText(actionText,
+		int32(actionBtn.X+actionBtn.Width/2)-actionWidth/2,
+		int32(actionBtn.Y+5),
+		20, rl.White)
+
+	// Switch mode button
+	switchBtn := rl.Rectangle{
+		X:      screenWidth/2 + 10,
+		Y:      buttonY,
+		Width:  buttonWidth,
+		Height: buttonHeight,
+	}
+	rl.DrawRectangleRec(switchBtn, rl.DarkGray)
+	switchText := "Register"
+	if l.isRegistering {
+		switchText = "Login"
+	}
+	switchWidth := rl.MeasureText(switchText, 20)
+	rl.DrawText(switchText,
+		int32(switchBtn.X+switchBtn.Width/2)-switchWidth/2,
+		int32(switchBtn.Y+5),
+		20, rl.White)
+}
+
+func (l *LoginScreen) Update() (string, string, bool, bool) {
+	// Handle input field focus
+	if rl.IsMouseButtonPressed(rl.MouseLeftButton) {
+		mousePos := rl.GetMousePosition()
+		screenWidth := float32(rl.GetScreenWidth())
+		inputWidth := float32(200)
+		inputX := screenWidth/2 - inputWidth/2
+
+		// Check username field
+		if mousePos.X >= inputX && mousePos.X <= inputX+inputWidth &&
+			mousePos.Y >= 200 && mousePos.Y <= 230 {
+			l.focusedField = 0
+		}
+		// Check password field
+		if mousePos.X >= inputX && mousePos.X <= inputX+inputWidth &&
+			mousePos.Y >= 250 && mousePos.Y <= 280 {
+			l.focusedField = 1
+		}
+
+		// Check buttons
+		buttonWidth := float32(100)
+		if mousePos.Y >= 350 && mousePos.Y <= 380 {
+			// Action button
+			if mousePos.X >= screenWidth/2-buttonWidth-10 &&
+				mousePos.X <= screenWidth/2-10 {
+				return l.username, l.password, l.isRegistering, true
+			}
+			// Switch mode button
+			if mousePos.X >= screenWidth/2+10 &&
+				mousePos.X <= screenWidth/2+buttonWidth+10 {
+				l.isRegistering = !l.isRegistering
+			}
+		}
+	}
+
+	// Handle text input
+	key := rl.GetCharPressed()
+	for key > 0 {
+		if l.focusedField == 0 && len(l.username) < 12 {
+			l.username += string(key)
+		} else if l.focusedField == 1 && len(l.password) < 20 {
+			l.password += string(key)
+		}
+		key = rl.GetCharPressed()
+	}
+
+	// Handle backspace
+	if rl.IsKeyPressed(rl.KeyBackspace) {
+		if l.focusedField == 0 && len(l.username) > 0 {
+			l.username = l.username[:len(l.username)-1]
+		} else if l.focusedField == 1 && len(l.password) > 0 {
+			l.password = l.password[:len(l.password)-1]
+		}
+	}
+
+	// Handle tab to switch fields
+	if rl.IsKeyPressed(rl.KeyTab) {
+		l.focusedField = (l.focusedField + 1) % 2
+	}
+
+	return "", "", false, false
+}
+
+func (l *LoginScreen) SetError(msg string) {
+	l.errorMessage = msg
+}

go.mod

@@ -3,7 +3,7 @@ module gitea.boner.be/bdnugget/goonscape
 go 1.23.0
 
 require (
-	gitea.boner.be/bdnugget/goonserver v0.0.0-20250113131525-49e23114973c
+	gitea.boner.be/bdnugget/goonserver v1.1.0
 	github.com/gen2brain/raylib-go/raylib v0.0.0-20250109172833-6dbba4f81a9b
 	google.golang.org/protobuf v1.36.3
 )

main.go

@@ -11,20 +11,21 @@ import (
 )
 
 func main() {
-	local := flag.Bool("local", false, "Use local server instead of remote")
-	addr := flag.String("addr", "boner.be:6969", "Server address (hostname:port or hostname)")
+	// Parse command line flags
+	local := flag.Bool("local", false, "Connect to local server")
+	addr := flag.String("addr", "", "Server address (host or host:port)")
 	flag.Parse()
 
-	if *local && *addr != "boner.be:6969" {
-		log.Fatal("Cannot use both -local and -addr flags")
-	}
-
+	// Set server address based on flags
 	if *local {
+		if *addr != "" {
+			log.Fatal("Cannot use -local and -addr together")
+		}
 		network.SetServerAddr("localhost:6969")
 	} else if *addr != "" {
-		// If only hostname is provided, append default port
+		// If port is not specified, append default port
 		if !strings.Contains(*addr, ":") {
-			*addr = *addr + ":6969"
+			*addr += ":6969"
 		}
 		network.SetServerAddr(*addr)
 	}
@@ -32,36 +33,24 @@ func main() {
 	rl.InitWindow(1024, 768, "GoonScape")
 	rl.SetExitKey(0)
 	defer rl.CloseWindow()
+
 	rl.InitAudioDevice()
 	defer rl.CloseAudioDevice()
 
+	rl.SetTargetFPS(60)
+
 	game := game.New()
 	if err := game.LoadAssets(); err != nil {
 		log.Fatalf("Failed to load assets: %v", err)
 	}
 	defer game.Cleanup()
 
-	conn, playerID, err := network.ConnectToServer()
-	if err != nil {
-		log.Fatalf("Failed to connect to server: %v", err)
-	}
-	defer conn.Close()
-
-	game.Player.ID = playerID
-	modelIndex := int(playerID) % len(game.Models)
-	game.Player.Model = game.Models[modelIndex].Model
-	game.Player.Texture = game.Models[modelIndex].Texture
-
-	go network.HandleServerCommunication(conn, playerID, game.Player, game.OtherPlayers, game.QuitChan)
-
 	rl.PlayMusicStream(game.Music)
 	rl.SetMusicVolume(game.Music, 0.5)
-	rl.SetTargetFPS(60)
 
 	for !rl.WindowShouldClose() {
-		rl.UpdateMusicStream(game.Music)
 		deltaTime := rl.GetFrameTime()
-
+		rl.UpdateMusicStream(game.Music)
 		game.Update(deltaTime)
 		game.Render()
 	}

network/network.go

@@ -3,56 +3,89 @@ package network
 import (
 	"bufio"
 	"encoding/binary"
+	"fmt"
 	"io"
 	"log"
 	"net"
 	"time"
 
-	"gitea.boner.be/bdnugget/goonscape/game"
 	"gitea.boner.be/bdnugget/goonscape/types"
 	pb "gitea.boner.be/bdnugget/goonserver/actions"
+	rl "github.com/gen2brain/raylib-go/raylib"
 	"google.golang.org/protobuf/proto"
 )
 
+const protoVersion = 1
+
 var serverAddr = "boner.be:6969"
 
 func SetServerAddr(addr string) {
 	serverAddr = addr
 }
 
-func ConnectToServer() (net.Conn, int32, error) {
+func ConnectToServer(username, password string, isRegistering bool) (net.Conn, int32, error) {
 	conn, err := net.Dial("tcp", serverAddr)
 	if err != nil {
 		log.Printf("Failed to dial server: %v", err)
 		return nil, 0, err
 	}
 
-	log.Println("Connected to server. Waiting for player ID...")
-	reader := bufio.NewReader(conn)
+	log.Println("Connected to server. Authenticating...")
 
-	// Read message length (4 bytes)
+	// Send auth message
+	authAction := &pb.Action{
+		Type:     pb.Action_LOGIN,
+		Username: username,
+		Password: password,
+	}
+	if isRegistering {
+		authAction.Type = pb.Action_REGISTER
+	}
+
+	authBatch := &pb.ActionBatch{
+		Actions:         []*pb.Action{authAction},
+		ProtocolVersion: protoVersion,
+	}
+
+	if err := writeMessage(conn, authBatch); err != nil {
+		conn.Close()
+		return nil, 0, fmt.Errorf("failed to send auth: %v", err)
+	}
+
+	// Read server response
+	reader := bufio.NewReader(conn)
 	lengthBuf := make([]byte, 4)
 	if _, err := io.ReadFull(reader, lengthBuf); err != nil {
-		log.Printf("Failed to read message length: %v", err)
-		return nil, 0, err
+		conn.Close()
+		return nil, 0, fmt.Errorf("failed to read auth response: %v", err)
 	}
 	messageLength := binary.BigEndian.Uint32(lengthBuf)
 
-	// Read the full message
 	messageBuf := make([]byte, messageLength)
 	if _, err := io.ReadFull(reader, messageBuf); err != nil {
-		log.Printf("Failed to read message body: %v", err)
-		return nil, 0, err
+		conn.Close()
+		return nil, 0, fmt.Errorf("failed to read auth response body: %v", err)
 	}
 
 	var response pb.ServerMessage
 	if err := proto.Unmarshal(messageBuf, &response); err != nil {
-		log.Printf("Failed to unmarshal server response: %v", err)
-		return nil, 0, err
+		conn.Close()
+		return nil, 0, fmt.Errorf("failed to unmarshal auth response: %v", err)
+	}
+
+	if response.ProtocolVersion > protoVersion {
+		conn.Close()
+		return nil, 0, fmt.Errorf("server requires newer protocol version (server: %d, client: %d)",
+			response.ProtocolVersion, protoVersion)
+	}
+
+	if !response.AuthSuccess {
+		conn.Close()
+		return nil, 0, fmt.Errorf(response.ErrorMessage)
 	}
 
 	playerID := response.GetPlayerId()
-	log.Printf("Successfully connected with player ID: %d", playerID)
+	log.Printf("Successfully authenticated with player ID: %d", playerID)
 	return conn, playerID, nil
 }
 
@@ -67,6 +100,9 @@ func HandleServerCommunication(conn net.Conn, playerID int32, player *types.Play
 	// Create a channel to signal when goroutines are done
 	done := make(chan struct{})
 
+	// Create a set of current players to track disconnects
+	currentPlayers := make(map[int32]bool)
+
 	go func() {
 		for {
 			select {
@@ -161,7 +197,19 @@ func HandleServerCommunication(conn net.Conn, playerID int32, player *types.Play
 			player.Unlock()
 
 			for _, state := range serverMessage.Players {
+				currentPlayers[state.PlayerId] = true
 				if state.PlayerId == playerID {
+					player.Lock()
+					// Update initial position if not set
+					if player.PosActual.X == 0 && player.PosActual.Z == 0 {
+						player.PosActual = rl.Vector3{
+							X: float32(state.X * types.TileSize),
+							Y: 0,
+							Z: float32(state.Y * types.TileSize),
+						}
+						player.PosTile = types.Tile{X: int(state.X), Y: int(state.Y)}
+					}
+					player.Unlock()
 					continue
 				}
 
@@ -172,8 +220,15 @@ func HandleServerCommunication(conn net.Conn, playerID int32, player *types.Play
 				}
 			}
 
-			if g, ok := player.UserData.(*game.Game); ok && len(serverMessage.ChatMessages) > 0 {
-				g.Chat.HandleServerMessages(serverMessage.ChatMessages)
+			// Remove players that are no longer in the server state
+			for id := range otherPlayers {
+				if !currentPlayers[id] {
+					delete(otherPlayers, id)
+				}
+			}
+
+			if handler, ok := player.UserData.(types.ChatMessageHandler); ok && len(serverMessage.ChatMessages) > 0 {
+				handler.HandleServerMessages(serverMessage.ChatMessages)
 			}
 		}
 	}

scripts/build.sh

@@ -6,12 +6,15 @@ build() {
     local arch=$2
     local output=$3
 
-    # Set CGO flags for static linking
-    export CGO_ENABLED=1
+    # Set GOOS and GOARCH for cross-compilation
     export GOOS=$os
     export GOARCH=$arch
 
-    # Platform specific flags
+    # Disable CGO only for cross-compilation
+    if [ "$os" != "$(go env GOOS)" ] || [ "$arch" != "$(go env GOARCH)" ]; then
+        export CGO_ENABLED=0
+    fi
+
     if [ "$os" = "windows" ]; then
         export CC=x86_64-w64-mingw32-gcc
         export CXX=x86_64-w64-mingw32-g++

types/types.go

@@ -39,6 +39,7 @@ type ModelAsset struct {
 
 type ChatMessage struct {
 	PlayerID int32
+	Username string
 	Content  string
 	Time     time.Time
 }
@@ -49,6 +50,10 @@ type FloatingMessage struct {
 	ScreenPos  rl.Vector2 // Store the screen position for 2D rendering
 }
 
+type ChatMessageHandler interface {
+	HandleServerMessages([]*pb.ChatMessage)
+}
+
 const (
 	MapWidth   = 50
 	MapHeight  = 50