public void Dispose()
{
SDL.DestroyRenderer(this.IntPtr);
if (TextureManager != null)
{
var queue = new Queue <IntPtr>(TextureManager.Values.Select(x => x.IntPtr));
while (queue.Any())
{
SDL.DestroyTexture(queue.Dequeue());
}
}
}
/// <summary>
/// Sets up a window and enters the gameloop. (Code after this call won't run until the game has exited.)
/// </summary>
public static void Run(float speed = 100f)
{
SDL.Init(SDL.InitFlags.EVERYTHING);
IMG.Init(IMG.InitFlags.EVERYTHING);
Mix.Init(Mix.InitFlags.EVERYTHING);
TTF.Init();
//open window
SDL.SetHint(SDL.HINT_RENDER_VSYNC, "1");
SDL.SetHint(SDL.HINT_RENDER_SCALE_QUALITY, "2");
WindowHandle = SDL.CreateWindow("HatlessEngine", SDL.WINDOWPOS_UNDEFINED, SDL.WINDOWPOS_UNDEFINED, 800, 600, SDL.WindowFlags.WINDOW_SHOWN | SDL.WindowFlags.WINDOW_RESIZABLE | SDL.WindowFlags.WINDOW_INPUT_FOCUS);
RendererHandle = SDL.CreateRenderer(WindowHandle, -1, (uint)(SDL.RendererFlags.RENDERER_ACCELERATED | SDL.RendererFlags.RENDERER_PRESENTVSYNC));
SDL.SetRenderDrawBlendMode(RendererHandle, SDL.BlendMode.BLENDMODE_BLEND);
Window.SetIcon();
//add default view that spans the current window
new View("default", new Rectangle(Point.Zero, Window.Size), new Rectangle(Point.Zero, new Point(1f, 1f)));
//initialize audio system and let Resources handle sound expiration
Mix.OpenAudio(44100, SDL.AUDIO_S16SYS, 2, 4096);
Mix.AllocateChannels((int)(speed * 2)); //might want to dynamically create and remove channels during runtime
Mix.ChannelFinished(new Mix.ChannelFinishedDelegate(Resources.SoundChannelFinished));
Mix.HookMusicFinished(new Mix.MusicFinishedDelegate(Resources.MusicFinished));
//initialize loop
StepsPerSecond = speed;
Running = true;
if (Started != null)
{
Started(null, EventArgs.Empty);
}
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
//do a step before the first draw can occur
Step();
long lastStepTick = 0;
long lastDrawTick = 0;
long lastStepTime = 0;
long lastDrawTime = 0;
while (Running)
{
//perform step when needed
if (stopWatch.ElapsedTicks >= lastStepTick + TicksPerStep)
{
if (CatchUpSteps)
{
lastStepTick = lastStepTick + TicksPerStep;
}
else
{
lastStepTick = stopWatch.ElapsedTicks;
}
Step();
_ActualSPS = (int)(Stopwatch.Frequency / (stopWatch.ElapsedTicks - lastStepTime));
lastStepTime = stopWatch.ElapsedTicks;
}
//perform draw when ready for a new one
if (!RenderframeReady && Running && stopWatch.ElapsedTicks >= lastDrawTick + TicksPerDraw)
{
lastDrawTick = lastDrawTick + TicksPerDraw;
Draw();
_ActualFPS = (int)(Stopwatch.Frequency / (stopWatch.ElapsedTicks - lastDrawTime));
lastDrawTime = stopWatch.ElapsedTicks;
}
}
//cleanup and uninitialization
Resources.UnloadAllExternalResources();
Log.CloseAllStreams();
Input.CloseGamepads();
SDL.DestroyWindow(WindowHandle);
WindowHandle = IntPtr.Zero;
SDL.DestroyRenderer(RendererHandle);
RendererHandle = IntPtr.Zero;
Mix.CloseAudio();
SDL.Quit();
IMG.Quit();
Mix.Quit();
TTF.Quit();
}
