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package packets
import (
"github.com/pektezol/bitreader"
"github.com/pektezol/sdp.go/pkg/types"
)
func ParseHeaders(reader *bitreader.Reader, demo *types.Demo) types.Headers {
headers := types.Headers{
DemoFileStamp: reader.TryReadString(),
DemoProtocol: int32(reader.TryReadSInt32()),
NetworkProtocol: int32(reader.TryReadSInt32()),
ServerName: reader.TryReadStringLength(260),
ClientName: reader.TryReadStringLength(260),
MapName: reader.TryReadStringLength(260),
GameDirectory: reader.TryReadStringLength(260),
PlaybackTime: reader.TryReadFloat32(),
PlaybackTicks: int32(reader.TryReadSInt32()),
PlaybackFrames: int32(reader.TryReadSInt32()),
SignOnLength: int32(reader.TryReadSInt32()),
}
if headers.DemoFileStamp != "HL2DEMO" {
panic("invalid demo file stamp")
}
if headers.DemoProtocol != 4 {
panic("this parser only supports demos from new engine")
}
if headers.NetworkProtocol != 2001 {
panic("this parser only supports demos from portal 2")
}
demo.Writer.AppendLine("\nDemo File Stamp: %s", headers.DemoFileStamp)
demo.Writer.AppendLine("Demo Protocol: %d", headers.DemoProtocol)
demo.Writer.AppendLine("Network Protocol: %d", headers.NetworkProtocol)
demo.Writer.AppendLine("Server Name: %s", headers.ServerName)
demo.Writer.AppendLine("Client Name: %s", headers.ClientName)
demo.Writer.AppendLine("Map Name: %s", headers.MapName)
demo.Writer.AppendLine("Game Directory: %s", headers.GameDirectory)
demo.Writer.AppendLine("Playback Time: %f", headers.PlaybackTime)
demo.Writer.AppendLine("Playback Ticks: %d", headers.PlaybackTicks)
demo.Writer.AppendLine("Playback Frames: %d", headers.PlaybackFrames)
demo.Writer.AppendLine("Sign On Length: %d\n", headers.SignOnLength)
return headers
}
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