Files
GoakeFlax/Source/Game/Player/PlayerInputDemo.cs
2025-03-19 23:00:03 +02:00

103 lines
2.9 KiB
C#

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using Console = Game.Console;
namespace Game;
#if false
public class PlayerInputDemo : PlayerInput
{
protected List<PlayerInputState> buffer = new List<PlayerInputState>();
protected IEnumerator<PlayerInputState> bufferEnumerable;
public bool IsPlaying
{
get
{
return bufferEnumerable != null;
}
}
public PlayerInputDemo(string demoPath)
{
if (!File.Exists(demoPath))
return;
int expectedPlayerInputStateSize = Unsafe.SizeOf<PlayerInputState>();
Stopwatch sw = Stopwatch.StartNew();
using FileStream fileStream = File.OpenRead(demoPath);
using GZipStream stream = new GZipStream(fileStream, CompressionMode.Decompress);
int ver = stream.ReadByte();
int inputStateSize = stream.ReadByte();
if (ver != DemoVer || inputStateSize != expectedPlayerInputStateSize)
{
Console.Print("demover mismatch: version " + ver + " != " + DemoVer + ", inputStateSize " +
inputStateSize + " != " + Unsafe.SizeOf<PlayerInputState>());
stream.Close();
return;
}
Span<byte> b = stackalloc byte[expectedPlayerInputStateSize];
while (true)
{
int bytesLeftInBuffer = expectedPlayerInputStateSize;
do
{
int readBytes = stream.Read(b.Slice(expectedPlayerInputStateSize - bytesLeftInBuffer, bytesLeftInBuffer));
if (readBytes == 0)
break;
bytesLeftInBuffer -= readBytes;
} while (bytesLeftInBuffer > 0);
if (bytesLeftInBuffer > 0)
break; // EOF;
buffer.Add(MemoryMarshal.Read<PlayerInputState>(b));
}
sw.Stop();
bufferEnumerable = buffer.GetEnumerator();
Console.Print($"Demo parse time {sw.Elapsed.TotalMilliseconds}ms, frames: {buffer.Count} ");
OnEndFrame(); // advances to first frame
}
public override void OnEndFrame()
{
// TODO: check if the current state frame matches the current frame number before advancing
/*asdf++;
if (asdf < 8)
return;*/
if (bufferEnumerable == null || !bufferEnumerable.MoveNext())
{
if (buffer.Any())
{
bufferEnumerable.Dispose();
bufferEnumerable = null;
buffer.Clear();
Console.Print("Demo ended");
}
return;
}
//var actorState = currentState.actor;
currentState.input = bufferEnumerable.Current;
//frame++;
//currentState.actor = actorState;
}
}
#endif