raylib/examples/core_random_values.c

/*******************************************************************************************
*
*   raylib [core] example - Generate random values
*
*   This example has been created using raylib 1.1 (www.raylib.com)
*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
*   Copyright (c) 2014 Ramon Santamaria (Ray San - raysan@raysanweb.com)
*
********************************************************************************************/

#include "raylib.h"

int main()
{
    // Initialization
    //--------------------------------------------------------------------------------------
    int screenWidth = 800;
    int screenHeight = 450;

    InitWindow(screenWidth, screenHeight, "raylib [core] example - generate random values");

    int framesCounter = 0;  // Variable used to count frames

    int randValue = GetRandomValue(-8,5);   // Get a random integer number between -8 and 5 (both included)

    SetTargetFPS(60);       // Set our game to run at 60 frames-per-second
    //--------------------------------------------------------------------------------------

    // Main game loop
    while (!WindowShouldClose())    // Detect window close button or ESC key
    {
        // Update
        //----------------------------------------------------------------------------------
        framesCounter++;

        // Every two seconds (120 frames) a new random value is generated
        if (((framesCounter/120)%2) == 1)
        {
            randValue = GetRandomValue(-8,5);
            framesCounter = 0;
        }
        //----------------------------------------------------------------------------------

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

            ClearBackground(RAYWHITE);

            DrawText("Every 2 seconds a new random value is generated:", 130, 100, 20, MAROON);

            DrawText(FormatText("%i", randValue), 360, 180, 80, LIGHTGRAY);

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

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

    return 0;
}