Mirai's Miscellaneous Misadventures
M2 / engines / sdl2.c
#include <stdlib.h>
#include <SDL2/SDL.h>
#include "../game.h"
struct mirai_sdl2
{
SDL_Renderer *renderer;
};
static void mirai_sdl2_stamp(void *opaque, int x, int y, struct mirai_image *image)
{
struct mirai_sdl2 *data = opaque;
SDL_Renderer *renderer = data->renderer;
SDL_Rect rect;
rect.x = x - image->width / 2;
rect.y = y - image->height;
rect.w = image->width;
rect.h = image->height;
SDL_RenderFillRect(renderer, &rect);
}
int main(int argc, char **argv)
{
atexit(&SDL_Quit);
SDL_Init(SDL_INIT_VIDEO);
SDL_Window *window;
SDL_Renderer *renderer;
SDL_CreateWindowAndRenderer(mirai_width, mirai_height, 0, &window, &renderer);
SDL_RenderSetLogicalSize(renderer, mirai_width, mirai_height);
SDL_SetWindowTitle(window, "Mirai's Miscellaneous Misadventures");
struct mirai_sdl2 data = {renderer};
struct mirai_engine engine = {&data, &mirai_sdl2_stamp};
struct mirai_game *game = malloc(mirai_game_size);
mirai_start(game, &engine);
Uint32 past = SDL_GetTicks();
for (;;)
{
Uint32 current = SDL_GetTicks();
Uint32 delay = current - past;
if (delay < 33) SDL_Delay(33 - delay);
past = current;
SDL_Event event;
while (SDL_PollEvent(&event))
{
if (event.type == SDL_QUIT) return 0;
if (event.type == SDL_KEYDOWN)
{
switch (event.key.keysym.sym)
{
default: continue;
case SDLK_q: return 0;
}
}
}
struct mirai_keys keys = {0, 0};
unsigned char *keyboard = SDL_GetKeyboardState(NULL);
if (keyboard[SDL_SCANCODE_LEFT]) keys.left = 1;
if (keyboard[SDL_SCANCODE_RIGHT]) keys.right = 1;
SDL_SetRenderDrawColor(renderer, 0xEE, 0xEE, 0xEE, 0xEE);
SDL_RenderClear(renderer);
SDL_SetRenderDrawColor(renderer, 0x33, 0x33, 0x33, 0x33);
mirai_step(game, keys);
SDL_RenderPresent(renderer);
}
}