raysan5.raylib/tests/test_mouse_wheel.c

/*******************************************************************************************
*
*   raylib test - Testing GetMouseWheelMove()
*
*   This example has been created using raylib 1.0 (www.raylib.com)
*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
*   Copyright (c) 2013 Ramon Santamaria (Ray San - [email protected])
*
********************************************************************************************/

#include "raylib.h"

int main()
{
    // Initialization
    //--------------------------------------------------------------------------------------
    int screenWidth = 800;
    int screenHeight = 450;
    
    InitWindow(screenWidth, screenHeight, "raylib test - Mouse wheel");
    
    int positionY = 0;
    int scrollSpeed = 4;    // Scrolling speed in pixels
    
    SetTargetFPS(60);
    //--------------------------------------------------------------------------------------
    
    // Main game loop
    while (!WindowShouldClose())    // Detect window close button or ESC key
    {
        // Update
        //----------------------------------------------------------------------------------
        positionY -= (GetMouseWheelMove()*scrollSpeed);
        //----------------------------------------------------------------------------------
        
        // Draw
        //----------------------------------------------------------------------------------
        BeginDrawing();
        
            ClearBackground(RAYWHITE);
            
            DrawRectangle(200, positionY, 80, 80, MAROON);
            
            DrawText(FormatText("%i", positionY), 10, 10, 20, GRAY);
        
        EndDrawing();
        //----------------------------------------------------------------------------------
    }

    // De-Initialization
    //--------------------------------------------------------------------------------------
    CloseWindow();        // Close window and OpenGL context
    //--------------------------------------------------------------------------------------
    
    return 0;
}