Function PackUserCmd

source/core/d_protocol.cpp:180–235

Returns the number of bytes written

// Returns the number of bytes written
int PackUserCmd (const InputPacket *ucmd, const InputPacket *basis, uint8_t **stream)
{
	uint8_t flags = 0;
	uint8_t *temp = *stream;
	uint8_t *start = *stream;
	InputPacket blank;

	if (basis == NULL)
	{
		memset (&blank, 0, sizeof(blank));
		basis = ␣
	}

	WriteByte (0, stream);			// Make room for the packing bits

	if (ucmd->actions != basis->actions)
	{
		flags |= UCMDF_BUTTONS;
		WriteLong(ucmd->actions, stream);
	}
	if (ucmd->ang.Pitch != basis->ang.Pitch)
	{
		flags |= UCMDF_PITCH;
		WriteFloat ((float)ucmd->ang.Pitch.Degrees(), stream);
	}
	if (ucmd->ang.Yaw != basis->ang.Yaw)
	{
		flags |= UCMDF_YAW;
		WriteFloat ((float)ucmd->ang.Yaw.Degrees(), stream);
	}
	if (ucmd->vel.X != basis->vel.X)
	{
		flags |= UCMDF_FORWARDMOVE;
		WriteFloat ((float)ucmd->vel.X, stream);
	}
	if (ucmd->vel.Y != basis->vel.Y)
	{
		flags |= UCMDF_SIDEMOVE;
		WriteFloat ((float)ucmd->vel.Y, stream);
	}
	if (ucmd->vel.Z != basis->vel.Z)
	{
		flags |= UCMDF_UPMOVE;
		WriteFloat ((float)ucmd->vel.Z, stream);
	}
	if (ucmd->ang.Roll != basis->ang.Roll)
	{
		flags |= UCMDF_ROLL;
		WriteFloat ((float)ucmd->ang.Roll.Degrees(), stream);
	}

	// Write the packing bits
	WriteByte (flags, &temp);

	return int(*stream - start);
}

FSerializer &Serialize(FSerializer &arc, const char *key, ticcmd_t &cmd, ticcmd_t *def)