raylib-cs/Examples/text/text_writing_anim.cs

using Raylib;
using static Raylib.Raylib;

public partial class text_writing_anim
{
    /*******************************************************************************************
    *
    *   raylib [text] example - Text Writing Animation
    *
    *   This example has been created using raylib 1.4 (www.raylib.com)
    *   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
    *
    *   Copyright (c) 2016 Ramon Santamaria (@raysan5)
    *
    ********************************************************************************************/


    public static int Main()
    {
        // Initialization
        //--------------------------------------------------------------------------------------
        int screenWidth = 800;
        int screenHeight = 450;

        InitWindow(screenWidth, screenHeight, "raylib [text] example - text writing anim");

        string message = "This sample illustrates a text writing\nanimation effect! Check it out! ;)";

        int framesCounter = 0;

        SetTargetFPS(60);
        //--------------------------------------------------------------------------------------

        // Main game loop
        while (!WindowShouldClose())    // Detect window close button or ESC key
        {
            // Update
            //----------------------------------------------------------------------------------
            if (IsKeyDown(KEY_SPACE)) framesCounter += 8;
            else framesCounter++;

            if (IsKeyPressed(KEY_ENTER)) framesCounter = 0;
            //----------------------------------------------------------------------------------

            // Draw
            //----------------------------------------------------------------------------------
            BeginDrawing();

                ClearBackground(RAYWHITE);

                DrawText(message.SubText(0, framesCounter/10), 210, 160, 20, MAROON);

                DrawText("PRESS [ENTER] to RESTART!", 240, 260, 20, LIGHTGRAY);
                DrawText("PRESS [SPACE] to SPEED UP!", 239, 300, 20, LIGHTGRAY);

            EndDrawing();
            //----------------------------------------------------------------------------------
        }

        // De-Initialization
        //--------------------------------------------------------------------------------------
        CloseWindow();        // Close window and OpenGL context
        //--------------------------------------------------------------------------------------

        return 0;
    }
}