using System;
using System.Runtime.InteropServices;

// 1ms timer resolution so the 120Hz fixed timestep's Thread.Sleep doesn't overshoot
// (default ~15.6ms granularity caps the loop at 80-90 FPS; OmegaTimer did the same)
[DllImport("winmm.dll")] static extern uint timeBeginPeriod(uint ms);
[DllImport("winmm.dll")] static extern uint timeEndPeriod(uint ms);
timeBeginPeriod(1);

try
{
    using var game = new FreedomFighter.Game1();
    // debug aid: --shot <file> [frames] renders, saves the backbuffer to a PNG, and exits
    var cmdArgs = Environment.GetCommandLineArgs();
    for (int i = 1; i < cmdArgs.Length - 1; i++)
    {
        if (cmdArgs[i] == "--shot")
        {
            game.ShotFile = cmdArgs[i + 1];
            if (i + 2 < cmdArgs.Length && int.TryParse(cmdArgs[i + 2], out int frames))
                game.ShotFrames = frames;
        }
        if (cmdArgs[i] == "--level" && int.TryParse(cmdArgs[i + 1], out int level))
            game.StartLevel = level;
    }
    game.Run();
}
finally
{
    timeEndPeriod(1);
}