The high-level multiplayer API in Godot appears to introduce ways for players to cheat too easily. As a precaution, players can now hopefully only send messages to the server, which relays them to each player, after potentially validating them. - Player's Name is set to their network ID, DisplayName accessible through new property - Add Authenticating NetworkStatus: This is where new players will send data about themselves, currently appearance. - Use _Ready instead of _EnterTree where applicable - Add Init extension method: Allows initializing members before the node has been added to the scene tree. - Add Rpc/RsetExcept extension methodsmain
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14 changed files with 321 additions and 222 deletions
@ -1,21 +0,0 @@ |
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using Godot; |
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public class Camera : Camera2D |
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{ |
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public Cursor Cursor { get; private set; } |
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public override void _EnterTree() |
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{ |
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// Cursor = GetViewport().GetNode<Cursor>("Cursor"); |
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} |
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public override void _Process(float delta) |
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{ |
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// TODO: Implement some kind of "zoom" mechanic? |
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// var mousePos = GetTree().Root.GetMousePosition(); |
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// var centerPos = OS.WindowSize / 2; |
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// var scale = ((Viewport)GetViewport()).Scale; |
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// Position = !Cursor.Visible ? Vector2.Zero |
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// : ((mousePos - centerPos) / scale).Clamped(MaxDistance) / 2; |
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} |
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} |
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using Godot; |
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using System; |
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public class LocalPlayer : Player |
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{ |
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public TimeSpan JumpEarlyTime { get; } = TimeSpan.FromSeconds(0.2F); |
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public TimeSpan JumpCoyoteTime { get; } = TimeSpan.FromSeconds(0.2F); |
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[Export] public float Speed { get; set; } = 120; |
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[Export] public float JumpSpeed { get; set; } = 180; |
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[Export] public float Gravity { get; set; } = 400; |
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[Export(PropertyHint.Range, "0,1")] |
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public float Friction { get; set; } = 0.1F; |
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[Export(PropertyHint.Range, "0,1")] |
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public float Acceleration { get; set; } = 0.25F; |
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private Vector2 _velocity = Vector2.Zero; |
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private DateTime? _jumpPressed = null; |
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private DateTime? _lastOnFloor = null; |
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public override void _PhysicsProcess(float delta) |
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{ |
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var moveDir = Input.GetActionStrength("move_right") - Input.GetActionStrength("move_left"); |
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_velocity.x = (moveDir != 0) ? Mathf.Lerp(_velocity.x, moveDir * Speed, Acceleration) |
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: Mathf.Lerp(_velocity.x, 0, Friction); |
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_velocity.y += Gravity * delta; |
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_velocity = MoveAndSlide(_velocity, Vector2.Up); |
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if (Input.IsActionJustPressed("move_jump")) |
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_jumpPressed = DateTime.Now; |
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if (IsOnFloor()) |
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_lastOnFloor = DateTime.Now; |
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if (((DateTime.Now - _jumpPressed) <= JumpEarlyTime) && |
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((DateTime.Now - _lastOnFloor) <= JumpCoyoteTime)) { |
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_velocity.y = -JumpSpeed; |
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_jumpPressed = null; |
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_lastOnFloor = null; |
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} |
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} |
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} |
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@ -1,42 +1,93 @@ |
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using Godot; |
using Godot; |
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using System; |
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public class Player : KinematicBody2D |
// FIXME: Player name should not be stored in "Name". |
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public class Player : KinematicBody2D, IInitializer |
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{ |
{ |
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public TimeSpan JumpEarlyTime { get; } = TimeSpan.FromSeconds(0.2F); |
[Export] public NodePath DisplayNamePath { get; set; } |
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public TimeSpan JumpCoyoteTime { get; } = TimeSpan.FromSeconds(0.2F); |
[Export] public NodePath SpritePath { get; set; } |
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[Export] public float Speed { get; set; } = 120; |
public Label DisplayNameLabel { get; private set; } |
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[Export] public float JumpSpeed { get; set; } = 180; |
public Sprite Sprite { get; private set; } |
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[Export] public float Gravity { get; set; } = 400; |
public Network Network { get; private set; } |
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[Export(PropertyHint.Range, "0,1")] |
public bool IsLocal => this is LocalPlayer; |
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public float Friction { get; set; } = 0.1F; |
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[Export(PropertyHint.Range, "0,1")] |
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public float Acceleration { get; set; } = 0.25F; |
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private Vector2 _velocity = Vector2.Zero; |
private int _networkId = -1; |
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private DateTime? _jumpPressed = null; |
public int NetworkId { |
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private DateTime? _lastOnFloor = null; |
get => _networkId; |
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set => SetNetworkId(value); |
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} |
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public Color Color { |
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get => Sprite.Modulate; |
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set => SetColor(value); |
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} |
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public string DisplayName { |
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get => DisplayNameLabel.Text; |
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set => SetDisplayName(value); |
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} |
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public void Initialize() |
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{ |
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DisplayNameLabel = GetNode<Label>(DisplayNamePath); |
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Sprite = GetNode<Sprite>(SpritePath); |
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} |
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public override void _Ready() |
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{ |
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Initialize(); |
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Network = GetNode<Network>("/root/Game/Network"); |
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RsetConfig("position", MultiplayerAPI.RPCMode.Puppetsync); |
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Sprite.RsetConfig("modulate", MultiplayerAPI.RPCMode.Puppetsync); |
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DisplayNameLabel.RsetConfig("text", MultiplayerAPI.RPCMode.Puppetsync); |
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} |
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public override void _Process(float delta) |
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{ |
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if (GetTree().NetworkPeer != null) { |
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// TODO: Only send position if it changed. |
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// Send unreliable messages while moving, and a reliable once the player stopped. |
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if (GetTree().IsNetworkServer()) |
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this.RsetUnreliableExcept(NetworkId, "position", Position); |
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else if (Network.Status == NetworkStatus.ConnectedToServer) |
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RpcUnreliable(nameof(OnPositionChanged), Position); |
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} |
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} |
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[Master] |
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private void OnPositionChanged(Vector2 value) |
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{ if (GetTree().GetRpcSenderId() == NetworkId) Position = value; } |
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private void SetNetworkId(int value) |
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{ |
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_networkId = value; |
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Name = (_networkId > 0) ? value.ToString() : "LocalPlayer"; |
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} |
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private void SetColor(Color value) |
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{ |
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Sprite.Modulate = value; |
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if (IsInsideTree() && GetTree().NetworkPeer != null) { |
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if (GetTree().IsNetworkServer()) Sprite.RsetExcept(NetworkId, "modulate", value); |
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else Rpc(nameof(OnColorChanged), value); |
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} |
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} |
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[Master] |
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private void OnColorChanged(Color value) |
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{ if (GetTree().GetRpcSenderId() == NetworkId) Color = value; } |
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public override void _PhysicsProcess(float delta) |
private void SetDisplayName(string value) |
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{ |
{ |
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var moveDir = Input.GetActionStrength("move_right") - Input.GetActionStrength("move_left"); |
DisplayNameLabel.Text = value; |
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_velocity.x = (moveDir != 0) ? Mathf.Lerp(_velocity.x, moveDir * Speed, Acceleration) |
if (IsInsideTree() && GetTree().NetworkPeer != null) { |
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: Mathf.Lerp(_velocity.x, 0, Friction); |
if (GetTree().IsNetworkServer()) DisplayNameLabel.RsetExcept(NetworkId, "text", value); |
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_velocity.y += Gravity * delta; |
else Rpc(nameof(OnDisplayNameChanged), value); |
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_velocity = MoveAndSlide(_velocity, Vector2.Up); |
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if (Input.IsActionJustPressed("move_jump")) |
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_jumpPressed = DateTime.Now; |
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if (IsOnFloor()) |
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_lastOnFloor = DateTime.Now; |
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if (((DateTime.Now - _jumpPressed) <= JumpEarlyTime) && |
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((DateTime.Now - _lastOnFloor) <= JumpCoyoteTime)) { |
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_velocity.y = -JumpSpeed; |
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_jumpPressed = null; |
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_lastOnFloor = null; |
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} |
} |
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} |
} |
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[Master] |
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private void OnDisplayNameChanged(string value) |
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{ if (GetTree().GetRpcSenderId() == NetworkId) DisplayName = value; } |
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} |
} |
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