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use fmt;
use sdl2;
export fn main() void = {
sdl2::SDL_Init(sdl2::SDL_INIT_VIDEO)!;
defer sdl2::SDL_Quit();
fmt::println(size(i32), size(i64), size(int), size(size))!;
const win = sdl2::SDL_CreateWindow("hi", sdl2::SDL_WINDOWPOS_UNDEFINED, sdl2::SDL_WINDOWPOS_UNDEFINED, 640, 480, sdl2::SDL_WindowFlags::NONE)!;
defer sdl2::SDL_DestroyWindow(win);
const wsurf = sdl2::SDL_GetWindowSurface(win)!;
const format = wsurf.format;
assert(format.bytesperpixel == 4, "can only work with u32 pixels");
fmt::printfln("got format {}. bytes per pixel {}. r{:x} g{:x} b{:x} a{:x}",
format.format, format.bytesperpixel, format.rmask, format.gmask, format.bmask, format.amask)!;
fmt::printfln("red: {:x} green {:x} blue {:x}",
sdl2::SDL_MapRGB(format, 255, 0, 0),
sdl2::SDL_MapRGB(format, 0, 255, 0),
sdl2::SDL_MapRGB(format, 0, 0, 255))!;
fmt::println(wsurf.w * wsurf.h)!;
fmt::println(sdl2::SDL_GetPixelFormatName(format.format))!;
let dstate = drawing_state {
drawing = false,
pos = (0,0),
picture = picture_from_surface(wsurf)
};
let quit = false;
let n = 0z;
let lasttime = sdl2::SDL_GetTicks();
for (!quit) {
let ev = sdl2::event { ... };
for (sdl2::SDL_PollEvent(&ev)! == 1) switch (ev.event_type) {
case sdl2::SDL_EventType::QUIT => quit = true;
case sdl2::SDL_EventType::KEYDOWN =>
const keysym = ev.key.keysym.sym;
if (keysym == sdl2::SDL_Keycode::ESCAPE) quit = true;
case sdl2::SDL_EventType::MOUSEBUTTONDOWN,
sdl2::SDL_EventType::MOUSEBUTTONUP =>
const edata = ev.button;
dstate.pos = (edata.x, edata.y);
if (edata.button == 1)
dstate.drawing = (edata.state == 1);
case sdl2::SDL_EventType::MOUSEMOTION =>
const edata = ev.motion;
dstate.pos = (edata.x, edata.y);
case => void;
};
do_drawing(&dstate);
// if (drawing) {
// circle(pic, mousex, mousey, 5, 0x00ffff);
// };
// circle(pic, 100, 100, n:int, 0xff0000);
sdl2::SDL_UpdateWindowSurface(win)!;
n += 1;
sdl2::SDL_Delay(1000/60);
// if (n % 100 == 0) {
// const thistime = sdl2::SDL_GetTicks();
// const dt = (thistime - lasttime): f64;
// lasttime = thistime;
// const dt = dt / 100.0;
// const fps = 1000.0/dt;
// fmt::printfln("fps: {}",fps)!;
// };
};
};
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