✨ Block placing

Scripts/Launcher.cs

@@ -3,7 +3,7 @@ using Godot;
 
 namespace CodingLand.Scripts;
 
-public partial class Multiplayer : Node
+public partial class Launcher : Node
 {
 	[Export] public World World;
 	
@@ -30,6 +30,12 @@ public partial class Multiplayer : Node
 		}
 	}
 
+	public void StartAsSingle()
+	{
+		GameUnfreeze();
+		World.StartGame();
+	}
+
 	public bool StartAsServer(int port)
 	{
 		var peer = new ENetMultiplayerPeer();

Scripts/Logic/PlayerInput.cs

@@ -6,22 +6,26 @@ public partial class PlayerInput : MultiplayerSynchronizer
 {
     [Export] public bool IsDashing;
 
+    [Export] public Vector2 BuildingAt;
+
     [Export] public Vector2 MovementDirection;
 
+    private bool IsCurrentPlayer => GetMultiplayerAuthority() == Multiplayer.GetUniqueId();
+
     public override void _Ready()
     {
-        if (GetMultiplayerAuthority() != Multiplayer.GetUniqueId())
-        {
-            SetProcess(false);
-            SetPhysicsProcess(false);
-        }
+        if (IsCurrentPlayer) return;
+        SetProcess(false);
+        SetPhysicsProcess(false);
     }
 
     [Rpc(CallLocal = true)]
     private void Dash()
-    {
-        IsDashing = true;
-    }
+        => IsDashing = true;
+
+    [Rpc(CallLocal = true)]
+    private void Build(Vector2 pos)
+        => BuildingAt = pos;
 
     public override void _Process(double delta)
     {
@@ -30,4 +34,11 @@ public partial class PlayerInput : MultiplayerSynchronizer
         if (Input.IsActionJustPressed("move_dash"))
             Rpc(nameof(Dash));
     }
+
+    public override void _Input(InputEvent evt)
+    {
+        if (!IsCurrentPlayer) return;
+        if (evt is InputEventMouseButton { Pressed: true })
+            Rpc(nameof(Build), GetViewport().GetMousePosition());
+    }
 }

Scripts/Logic/World.cs

@@ -1,4 +1,3 @@
-using System.Numerics;
 using Godot;
 using Vector2 = Godot.Vector2;
 

Scripts/Player.cs

@@ -6,20 +6,22 @@ namespace CodingLand.Scripts;
 public partial class Player : CharacterBody2D
 {
 	private int _currentPlayerId = 1;
-	
+
 	[Export] public float MaxSpeed = 400f;
 	[Export] public float Acceleration = 500f;
 	[Export] public float Deceleration = 500f;
 	[Export] public float RotationSpeed = 5f;
 
+	[Export] public int Reach = 5;
+
 	[Export] public Camera2D PlayerCamera;
 
 	[Export] public PlayerInput PlayerInput;
 
-	[Export] public Timer PlayerDashCountdown;
 	[Export] public float PlayerDashAcceleration = 2f;
 
-	[Export] public int PlayerId
+	[Export]
+	public int PlayerId
 	{
 		get => _currentPlayerId;
 		set
@@ -34,18 +36,34 @@ public partial class Player : CharacterBody2D
 		PlayerId = id;
 		PlayerInput.SetMultiplayerAuthority(id);
 	}
+	
+	private TilesManager _tilesMgr;
 
 	public override void _Ready()
 	{
 		if (PlayerId == Multiplayer.GetUniqueId())
 			PlayerCamera.Enabled = true;
+		_tilesMgr = GetNode<TilesManager>("../Tiles");
+	}
+
+	public override void _Process(double delta)
+	{
+		var vec = GetGlobalMousePosition();
+		if (PlayerInput.BuildingAt == Vector2.Zero) return;
+		var distance = Position.DistanceTo(vec);
+		if (distance <= Reach * _tilesMgr.TileSize)
+		{
+			// Able to build
+			Rpc(nameof(AddTile), vec);
+		}
+
+		PlayerInput.BuildingAt = Vector2.Zero;
 	}
 
 	public override void _PhysicsProcess(double delta)
 	{
 		var input = PlayerInput.MovementDirection;
 
-
 		if (input != Vector2.Zero)
 		{
 			input = input.Normalized();
@@ -59,14 +77,27 @@ public partial class Player : CharacterBody2D
 			Velocity = Velocity.MoveToward(Vector2.Zero, Deceleration * (float)delta);
 		}
 
-		if (PlayerInput.IsDashing && PlayerDashCountdown.IsStopped())
+		var dashCountdown = GetNode<Timer>("DashCountdown");
+		if (PlayerInput.IsDashing && dashCountdown.IsStopped())
 		{
 			PlayerInput.IsDashing = false;
 			Velocity *= PlayerDashAcceleration;
-			PlayerDashCountdown.Start();
+			dashCountdown.Start();
 		}
 
 		Position += Velocity * (float)delta;
 		MoveAndSlide();
 	}
+	
+	[Rpc(mode: MultiplayerApi.RpcMode.AnyPeer, CallLocal = true)]
+	public void AddTile(Vector2 pos)
+	{
+		if (_tilesMgr.GetTileByPosition<Node2D>(pos) != null) return;
+		
+		var tileVec = new Vector2(_tilesMgr.TileSize, _tilesMgr.TileSize);
+		var blueprint = GD.Load<PackedScene>("res://Scenes/Tiles/Brick.tscn");
+		var instance = blueprint.Instantiate<Node2D>();
+		instance.Position = pos.Snapped(tileVec);
+		_tilesMgr.AddChild(instance);
+	}
 }

Scripts/TilesManager.cs

@@ -0,0 +1,35 @@
+using Godot;
+
+namespace CodingLand.Scripts;
+
+public partial class TilesManager : Node2D
+{
+    [Export] public float TileSize = 51.2f;
+
+    [Rpc(CallLocal = true)]
+    public void AddTile(Vector2 pos)
+    {
+        if (GetTileByPosition<Node2D>(pos) == null)
+        {
+            var tileVec = new Vector2(TileSize, TileSize);
+            // TODO Replace the brick to player selection
+            var blueprint = GD.Load<PackedScene>("res://Scenes/Tiles/Brick.tscn");
+            var instance = blueprint.Instantiate<Node2D>();
+            instance.Position = pos.Snapped(tileVec);
+            AddChild(instance);
+        }
+    }
+
+    public T GetTileByPosition<T>(Vector2 position) where T : Node2D
+    {
+        foreach (var item in GetChildren())
+        {
+            if (item is T tile && tile.Position == position)
+            {
+                return tile;
+            }
+        }
+
+        return null;
+    }
+}

Scripts/UI/StartScreen.cs

@@ -2,15 +2,16 @@ using Godot;
 
 namespace CodingLand.Scripts.UI;
 
-public partial class MultiplayerUi : Control
+public partial class StartScreen : Control
 {
 	[Export] public int DefaultServerPort = 4343;
 	[Export] public string DefaultServerAddr = "127.0.0.1";
 
-	[Export] public Multiplayer MultiplayerController;
+	[Export] public Launcher Launcher;
 
 	[Export] public LineEdit ServerPortInput;
 	[Export] public LineEdit ServerAddrInput;
+	[Export] public Button StartAsSingleButton;
 	[Export] public Button StartAsServerButton;
 	[Export] public Button StartAsClientButton;
 
@@ -41,6 +42,11 @@ public partial class MultiplayerUi : Control
 		ServerPortInput.Text = DefaultServerPort.ToString();
 		ServerAddrInput.Text = DefaultServerAddr;
 
+		StartAsSingleButton.Pressed += () =>
+		{
+			Launcher.StartAsSingle();
+			Hide();
+		};
 		StartAsServerButton.Pressed += () =>
 		{
 			if (!DoValidation())
@@ -50,7 +56,7 @@ public partial class MultiplayerUi : Control
 			}
 
 			var port = ServerPortInput.Text;
-			var result = MultiplayerController.StartAsServer(int.Parse(port));
+			var result = Launcher.StartAsServer(int.Parse(port));
 			
 			if (result)
 				Hide();
@@ -65,7 +71,7 @@ public partial class MultiplayerUi : Control
 
 			var addr = ServerAddrInput.Text;
 			var port = ServerPortInput.Text;
-			var result = MultiplayerController.StartAsClient(addr, int.Parse(port));
+			var result = Launcher.StartAsClient(addr, int.Parse(port));
 
 			if (result)
 				Hide();