//====== Copyright (c) 2016, Valve Corporation, All rights reserved. ========//
//
// Redistribution and use in source and binary forms, with or without 
// modification, are permitted provided that the following conditions are met:
//
// Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// Redistributions in binary form must reproduce the above copyright notice, 
// this list of conditions and the following disclaimer in the documentation 
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
// THE POSSIBILITY OF SUCH DAMAGE.
//===========================================================================//
//
// Purpose: The file defines our Google Protocol Buffers which are used in over 
// the wire messages for the Source engine.
//
//=============================================================================

// Note about encoding:
//	http://code.google.com/apis/protocolbuffers/docs/encoding.html
//
// TL;DR: Use sint32/sint64 for values that may be negative.
//
// There is an important difference between the signed int types (sint32 and sint64)
// and the "standard" int types (int32 and int64) when it comes to encoding negative
// numbers.  If you use int32 or int64 as the type for a negative number, the
// resulting varint is always ten bytes long – it is, effectively, treated like a
// very large unsigned integer.  If you use one of the signed types, the resulting
// varint uses ZigZag encoding, which is much more efficient.


// Commenting this out allows it to be compiled for SPEED or LITE_RUNTIME.
// option optimize_for = SPEED;

// We don't use the service generation functionality
option cc_generic_services = false;


// 
// STYLE NOTES:
//
// Use CamelCase CMsgMyMessageName style names for messages.
// 
// Use lowercase _ delimited names like my_steam_id for field names, this is non-standard for Steam,
// but plays nice with the Google formatted code generation.  
// 
// Try not to use required fields ever. Only do so if you are really really sure you'll never want them removed. 
// Optional should be preffered as it will make versioning easier and cleaner in the future if someone refactors
// your message and wants to remove or rename fields.
//
// Use fixed64 for JobId_t, GID_t, or SteamID.  This is appropriate for any field that is normally
// going to be larger than 2^56.  Otherwise use int64 for 64 bit values that are frequently smaller
// than 2^56 as it will safe space on the wire in those cases.
//
// Similar to fixed64, use fixed32 for RTime32 or other 32 bit values that are frequently larger than
// 2^28.  It will safe space in those cases, otherwise use int32 which will safe space for smaller values.
// An exception to this rule for RTime32 is if the value will frequently be zero rather than set to an actual 
// time.
//

import "google/protobuf/descriptor.proto";

message CEngineGotvSyncPacket
{
	optional uint64 match_id = 1;			// Unique Match ID
	optional uint32 instance_id = 2;			// GoTV instance ID
	optional uint32 signupfragment = 3;		// Numeric value index of signup fragment
	optional uint32 currentfragment = 4;	// Numeric value index of current fragment
	optional float tickrate = 5;			// number of ticks per second on server
	optional uint32 tick = 6;				// Start Tick of the current fragment
	optional float rtdelay = 8;				// delay of this fragment from real-time, seconds
	optional float rcvage = 9;				// Receive age: how many seconds since relay last received data from game server
	optional float keyframe_interval = 10;	// the interval between full keyframes, in seconds
}; 


// Do not remove this comment due to a bug on the Mac OS X protobuf compiler - <sergiy> integrated from Dota