private void DrawShape(PascalShape shape)
{
SDL.SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
SDL.SDL_RenderClear(renderer);
SDL.SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
var points = shape.Points;
SDL.SDL_RenderDrawPoints(renderer, points, points.Length);
SDL.SDL_RenderPresent(renderer);
}
public MainForm()
{
InitializeComponent();
Thread thread = new Thread(() =>
{
SDL.SDL_Init(SDL.SDL_INIT_EVERYTHING);
IntPtr wnd = SDL.SDL_CreateWindow("Pascal shape SDL", 100, 100, 800, 600, SDL.SDL_WindowFlags.SDL_WINDOW_RESIZABLE |
SDL.SDL_WindowFlags.SDL_WINDOW_SHOWN);
var shape = new PascalShape();
renderer = SDL.SDL_CreateRenderer(wnd, -1, SDL.SDL_RendererFlags.SDL_RENDERER_ACCELERATED);
DrawShape(shape);
bool quit = false;
while (!quit)
{
SDL.SDL_Event sdlEvent;
SDL.SDL_PollEvent(out sdlEvent);
switch (sdlEvent.type)
{
case SDL.SDL_EventType.SDL_QUIT:
{
quit = true;
break;
}
case SDL.SDL_EventType.SDL_KEYDOWN:
{
var key = sdlEvent.key;
switch (key.keysym.sym)
{
case SDL.SDL_Keycode.SDLK_DOWN:
shape.TransformY += 10;
break;
case SDL.SDL_Keycode.SDLK_UP:
shape.TransformY -= 10;
break;
case SDL.SDL_Keycode.SDLK_LEFT:
shape.TransformX -= 10;
break;
case SDL.SDL_Keycode.SDLK_RIGHT:
shape.TransformX += 10;
break;
case SDL.SDL_Keycode.SDLK_LCTRL:
shape.Rotate += 10;
break;
case SDL.SDL_Keycode.SDLK_RCTRL:
shape.Rotate -= 10;
break;
}
break;
}
case SDL.SDL_EventType.SDL_MOUSEBUTTONDOWN:
{
if (sdlEvent.button.button == SDL.SDL_BUTTON_LEFT)
{
if (shape.Scale < 3)
{
shape.Scale += 0.1;
}
}
if (sdlEvent.button.button == SDL.SDL_BUTTON_RIGHT)
{
if (shape.Scale > 0.2)
{
shape.Scale -= 0.1;
}
}
break;
}
}
DrawShape(shape);
Thread.Sleep(10);
}
SDL.SDL_DestroyRenderer(renderer);
SDL.SDL_DestroyWindow(wnd);
SDL.SDL_Quit();
});
thread.Start();
thread.Join();
}
