Xcode-iPhoneOS/Template/SDL Application/main.c
author Ryan C. Gordon <icculus@icculus.org>
Sun, 10 Jan 2010 05:06:03 +0000
changeset 3623 9a73fecd9181
parent 3277 20326ba2bda2
child 5125 b6c7a6b07ebf
permissions -rw-r--r--
Reverted r5460 ... this was merged from 1.2, but was later reverted there.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/*
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 *	rectangles.c
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 *	written by Holmes Futrell
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 *	use however you want
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 */
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#include "SDL.h"
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#include <time.h>
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#define SCREEN_WIDTH 320
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#define SCREEN_HEIGHT 480
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int
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randomInt(int min, int max)
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{
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    return min + rand() % (max - min + 1);
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}
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void
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render(void)
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{
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    Uint8 r, g, b;
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    /*  Come up with a random rectangle */
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    SDL_Rect rect;
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    rect.w = randomInt(64, 128);
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    rect.h = randomInt(64, 128);
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    rect.x = randomInt(0, SCREEN_WIDTH);
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    rect.y = randomInt(0, SCREEN_HEIGHT);
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    /* Come up with a random color */
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    r = randomInt(50, 255);
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    g = randomInt(50, 255);
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    b = randomInt(50, 255);
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    /*  Fill the rectangle in the color */
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    SDL_RenderFill(r, g, b, 255, &rect);
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    /* update screen */
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    SDL_RenderPresent();
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}
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int
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main(int argc, char *argv[])
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{
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    SDL_WindowID windowID;
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    int done;
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    SDL_Event event;
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    /* initialize SDL */
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    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
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        printf("Could not initialize SDL\n");
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    }
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    /* seed random number generator */
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    srand(time(NULL));
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    /* create window and renderer */
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    windowID =
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        SDL_CreateWindow(NULL, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT,
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                         SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
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    if (windowID == 0) {
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        printf("Could not initialize Window\n");
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    }
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    if (SDL_CreateRenderer(windowID, -1, 0) != 0) {
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        printf("Could not create renderer\n");
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    }
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    /* Fill screen with black */
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    SDL_RenderFill(0, 0, 0, 0, NULL);
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    /* Enter render loop, waiting for user to quit */
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    done = 0;
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    while (!done) {
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        while (SDL_PollEvent(&event)) {
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            if (event.type == SDL_QUIT) {
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                done = 1;
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            }
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        }
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        render();
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        SDL_Delay(1);
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    }
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    /* shutdown SDL */
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    SDL_Quit();
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    return 0;
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}