feat: backporting existing raylib-cs examples and new official raylib examples to WASM, adopting raylib's original code style

Examples/Shapes/DashedLine.cs

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+/*******************************************************************************************
+*
+*   raylib [shapes] example - dashed line
+*
+*   Example complexity rating: [★☆☆☆] 1/4
+*
+*   Example originally created with raylib 5.5, last time updated with raylib 5.5
+*
+*   Example contributed by Luís Almeida (@luis605)
+*
+*   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
+*   BSD-like license that allows static linking with closed source software
+*
+*   Copyright (c) 2025 Luís Almeida (@luis605)
+*
+********************************************************************************************/
+
+using System.Numerics;
+using static Raylib_cs.Raylib;
+
+namespace Examples.Shapes;
+
+public partial class DashedLine : IExample
+{
+    private const int screenWidth = 800;
+    private const int screenHeight = 450;
+
+    public string Name => "Shapes / Dashed Line";
+
+    public string Title => "raylib [shapes] example - dashed line";
+
+    // Line Properties
+    private Vector2 lineStartPosition;
+    private Vector2 lineEndPosition;
+    private float dashLength;
+    private float blankLength;
+
+    // Color selection
+    private Color[] lineColors;
+    private int colorIndex;
+
+    public void Init()
+    {
+        // Line Properties
+        lineStartPosition = new Vector2(20.0f, 50.0f);
+        lineEndPosition = new Vector2(780.0f, 400.0f);
+        dashLength = 25.0f;
+        blankLength = 15.0f;
+
+        // Color selection
+        lineColors = new[] { Color.Red, Color.Orange, Color.Gold, Color.Green, Color.Blue, Color.Violet, Color.Pink, Color.Black };
+        colorIndex = 0;
+    }
+
+    public void Update()
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        lineEndPosition = GetMousePosition(); // Line endpoint follows the mouse
+
+        // Change Dash Length (UP/DOWN arrows)
+        if (IsKeyDown(KeyboardKey.Up)) dashLength += 1.0f;
+        if (IsKeyDown(KeyboardKey.Down) && dashLength > 1.0f) dashLength -= 1.0f;
+
+        // Change Space Length (LEFT/RIGHT arrows)
+        if (IsKeyDown(KeyboardKey.Right)) blankLength += 1.0f;
+        if (IsKeyDown(KeyboardKey.Left) && blankLength > 1.0f) blankLength -= 1.0f;
+
+        // Cycle through colors ('C' key)
+        if (IsKeyPressed(KeyboardKey.C)) colorIndex = (colorIndex + 1)%lineColors.Length;
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(Color.RayWhite);
+
+            // Draw the dashed line with the current properties
+            DrawLineDashed(lineStartPosition, lineEndPosition, (int)dashLength, (int)blankLength, lineColors[colorIndex]);
+
+            // Draw UI and Instructions
+            DrawRectangle(5, 5, 265, 95, Fade(Color.SkyBlue, 0.5f));
+            DrawRectangleLines(5, 5, 265, 95, Color.Blue);
+
+            DrawText("CONTROLS:", 15, 15, 10, Color.Black);
+            DrawText("UP/DOWN: Change Dash Length", 15, 35, 10, Color.Black);
+            DrawText("LEFT/RIGHT: Change Space Length", 15, 55, 10, Color.Black);
+            DrawText("C: Cycle Color", 15, 75, 10, Color.Black);
+
+            DrawText($"Dash: {dashLength:F0} | Space: {blankLength:F0}", 15, 115, 10, Color.DarkGray);
+
+            DrawFPS(screenWidth - 80, 10);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    public void Unload()
+    {
+    }
+
+    public static int Main()
+    {
+        // Initialization
+        //--------------------------------------------------------------------------------------
+        InitWindow(screenWidth, screenHeight, "raylib [shapes] example - dashed line");
+
+        SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
+        //--------------------------------------------------------------------------------------
+
+        var game = new DashedLine();
+        game.Init();
+
+        // Main game loop
+        while (!WindowShouldClose())    // Detect window close button or ESC key
+        {
+            game.Update();
+        }
+
+        game.Unload();
+
+        // De-Initialization
+        //--------------------------------------------------------------------------------------
+        CloseWindow();        // Close window and OpenGL context
+        //--------------------------------------------------------------------------------------
+
+        return 0;
+    }
+}