using System; using System.Collections; using System.Collections.Generic; using Microsoft.Xna.Framework; using Microsoft.Xna.Framework.Input; using Microsoft.Xna.Framework.Graphics; using TrueCraft.Client.Rendering; using TrueCraft.Client.Input; namespace TrueCraft.Client.Interface { public class ChatInterface : Control { private static bool TryParseKey(Keys key, bool shift, out char value) { // Credit to Roy Triesscheijn for thinking of this. // His implementation of this solution can be found at: // http://roy-t.nl/index.php/2010/02/11/code-snippet-converting-keyboard-input-to-text-in-xna/ switch (key) { case Keys.NumPad1: value = '1'; break; case Keys.NumPad2: value = '2'; break; case Keys.NumPad3: value = '3'; break; case Keys.NumPad4: value = '4'; break; case Keys.NumPad5: value = '5'; break; case Keys.NumPad6: value = '6'; break; case Keys.NumPad7: value = '7'; break; case Keys.NumPad8: value = '8'; break; case Keys.NumPad9: value = '9'; break; case Keys.NumPad0: value = '0'; break; case Keys.D1: value = (shift) ? '!' : '1'; break; case Keys.D2: value = (shift) ? '@' : '2'; break; case Keys.D3: value = (shift) ? '#' : '3'; break; case Keys.D4: value = (shift) ? '$' : '4'; break; case Keys.D5: value = (shift) ? '%' : '5'; break; case Keys.D6: value = (shift) ? '^' : '6'; break; case Keys.D7: value = (shift) ? '&' : '7'; break; case Keys.D8: value = (shift) ? '*' : '8'; break; case Keys.D9: value = (shift) ? '(' : '9'; break; case Keys.D0: value = (shift) ? ')' : '0'; break; case Keys.A: value = (shift) ? 'A' : 'a'; break; case Keys.B: value = (shift) ? 'B' : 'b'; break; case Keys.C: value = (shift) ? 'C' : 'c'; break; case Keys.D: value = (shift) ? 'D' : 'd'; break; case Keys.E: value = (shift) ? 'E' : 'e'; break; case Keys.F: value = (shift) ? 'F' : 'f'; break; case Keys.G: value = (shift) ? 'G' : 'g'; break; case Keys.H: value = (shift) ? 'H' : 'h'; break; case Keys.I: value = (shift) ? 'I' : 'i'; break; case Keys.J: value = (shift) ? 'J' : 'j'; break; case Keys.K: value = (shift) ? 'K' : 'k'; break; case Keys.L: value = (shift) ? 'L' : 'l'; break; case Keys.M: value = (shift) ? 'M' : 'm'; break; case Keys.N: value = (shift) ? 'N' : 'n'; break; case Keys.O: value = (shift) ? 'O' : 'o'; break; case Keys.P: value = (shift) ? 'P' : 'p'; break; case Keys.Q: value = (shift) ? 'Q' : 'q'; break; case Keys.R: value = (shift) ? 'R' : 'r'; break; case Keys.S: value = (shift) ? 'S' : 's'; break; case Keys.T: value = (shift) ? 'T' : 't'; break; case Keys.U: value = (shift) ? 'U' : 'u'; break; case Keys.V: value = (shift) ? 'V' : 'v'; break; case Keys.W: value = (shift) ? 'W' : 'w'; break; case Keys.X: value = (shift) ? 'X' : 'x'; break; case Keys.Y: value = (shift) ? 'Y' : 'y'; break; case Keys.Z: value = (shift) ? 'Z' : 'z'; break; case Keys.OemTilde: value = (shift) ? '~' : '`'; break; case Keys.OemSemicolon: value = (shift) ? ':' : ';'; break; case Keys.OemQuotes: value = (shift) ? '"' : '\''; break; case Keys.OemQuestion: value = (shift) ? '?' : '/'; break; case Keys.OemPlus: value = (shift) ? '+' : '='; break; case Keys.OemPipe: value = (shift) ? '|' : '\\'; break; case Keys.OemPeriod: value = (shift) ? '>' : '.'; break; case Keys.OemOpenBrackets: value = (shift) ? '{' : '['; break; case Keys.OemCloseBrackets: value = (shift) ? '}' : ']'; break; case Keys.OemMinus: value = (shift) ? '_' : '-'; break; case Keys.OemComma: value = (shift) ? '<' : ','; break; case Keys.Space: value = ' '; break; default: value = default(char); return false; } return true; } private class ChatMessage { public string Message { get; set; } public DateTime Time { get; set; } public ChatMessage(string message) { Message = message; Time = DateTime.UtcNow; } } public bool HasFocus { get; set; } public MultiplayerClient Client { get; set; } public KeyboardHandler Keyboard { get; set; } public FontRenderer Font { get; set; } private readonly object Lock = new object(); private string Input { get; set; } private List Messages { get; set; } private Texture2D DummyTexture { get; set; } public ChatInterface(MultiplayerClient client, KeyboardHandler keyboard, FontRenderer font) { Client = client; Keyboard = keyboard; Font = font; Input = string.Empty; Messages = new List(); DummyTexture = new Texture2D(keyboard.Game.GraphicsDevice, 1, 1); DummyTexture.SetData(new[] { Color.White }); Client.ChatMessage += OnChatMessage; Keyboard.KeyDown += OnKeyDown; } protected override void OnShow() { } protected override void OnUpdate(GameTime gameTime) { lock (Lock) { for (int i = 0; i < Messages.Count; i++) { var message = Messages[i]; if ((DateTime.UtcNow - message.Time).TotalSeconds > 10) { Messages.RemoveAt(i); i--; } } } } protected override void OnDrawSprites(GameTime gameTime, SpriteBatch spriteBatch) { // UI scaling var scale = GetScaleFactor(); var xOrigin = (int)(10 * scale); var yOffset = (int)(25 * scale); var yOrigin = (int)(5 * scale) + (spriteBatch.GraphicsDevice.Viewport.Height - (yOffset * 7)); var color = Color.Lerp(Color.Transparent, Color.Black, 0.5f); lock (Lock) { if ((Messages.Count == 0) && !HasFocus) return; spriteBatch.Draw(DummyTexture, new Rectangle(xOrigin - 2, yOrigin - 2, (int)(600 * scale) + 4, (yOffset * 5) + 4), color); var total = 5; for (int i = (Messages.Count - 1); i >= 0; i--) { var message = Messages[i]; total--; Font.DrawText(spriteBatch, xOrigin , yOrigin + (yOffset * total), message.Message, scale); if (total == 0) break; } if (HasFocus) { spriteBatch.Draw(DummyTexture, new Rectangle(xOrigin - 2, yOrigin + (yOffset * 5) + xOrigin - 2, (int)(600 * scale) + 4, yOffset + 4), color); Font.DrawText(spriteBatch, xOrigin, yOrigin + (yOffset * 5) + xOrigin, "> " + Input, scale); } } } private void OnChatMessage(object sender, Events.ChatMessageEventArgs e) { AddMessage(e.Message); } private void OnKeyDown(object sender, KeyboardKeyEventArgs e) { if (HasFocus) { if (e.Key == Keys.Back) Input = Input.Length > 0 ? Input.Substring(0, Input.Length - 1) : Input; else { var shift = (Keyboard.State.IsKeyDown(Keys.LeftShift) || Keyboard.State.IsKeyDown(Keys.RightShift)); var value = default(char); if (TryParseKey(e.Key, shift, out value)) Input += new string(new char[] { value }); } } else { if (Input != string.Empty) { Client.SendMessage(Input); Input = string.Empty; } } } protected override void OnHide() { } public void AddMessage(string message) { lock (Lock) { Messages.Add(new ChatMessage(message)); Console.WriteLine(message); } } } }