ScrapExplorer - sdl2.cpp
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[FILE BEGIN]
1/* CPP_SDL
2 * Ignore my crap code please
3 */
4
5#include <SDL.h>
6
7int main(int argc, char** argv)
8{
9    SDL_Init(SDL_INIT_VIDEO);
10    SDL_Window* window = SDL_CreateWindow("Window", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_SHOWN);
11    SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
12    SDL_SetWindowResizable(window, SDL_TRUE);
13
14    int cursor_last_x = 1, cursor_last_y = 1;
15    int pixel_size = 10;
16    bool running = true;
17    SDL_Rect box = {0, 0, pixel_size, pixel_size};
18
19    while (running)
20    {
21        SDL_Event e;
22        while (SDL_PollEvent(&e))
23        {
24            switch (e.type)
25            {
26                case SDL_QUIT:
27                    running = false;
28                    break;
29                case SDL_KEYDOWN:
30                    switch (e.key.keysym.sym)
31                    {
32                        case SDLK_ESCAPE:
33                            running = false;
34                            break;
35                        case SDLK_UP:
36                            box.y--;
37                            break;
38                        case SDLK_DOWN:
39                            box.y++;
40                            break;
41                        case SDLK_LEFT:
42                            box.x--;
43                            break;
44                        case SDLK_RIGHT:
45                            box.x++;
46                            break;
47                        default:
48                            break;
49                    }
50                    break;
51                default:
52                    break;
53            }
54        }
55
56        if (box.x != cursor_last_x || box.y != cursor_last_y)
57        {
58            SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0x00, 0xFF);
59            SDL_RenderClear(renderer);
60
61            SDL_SetRenderDrawColor(renderer, 0xFF, 0x00, 0x00, 0xFF);
62            box.x = box.x * pixel_size;
63            box.y = box.y * pixel_size;
64            SDL_RenderFillRect(renderer, &box);
65
66            SDL_RenderPresent(renderer);
67
68            cursor_last_x = box.x;
69            cursor_last_y = box.y;
70        }
71        SDL_Delay(1000 / 60);
72    }
73
74    SDL_DestroyRenderer(renderer);
75    SDL_DestroyWindow(window);
76    SDL_Quit();
77
78    return 0;
79}
80
[FILE END]
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