how to packets.c

int MakeSendPacket(int BoxType, int TeamNumber, int RecTeamNumber) {
	// 0000000000000011 BoxType << 12
	// 0011000000000000

	int Packed = BoxType << 12;
	Packed = Packed | (TeamNumber << 6);
	Packed = Packed | RecTeamNumber;

	return Packed;
}

int DecomposePacket(int Packed, int *BoxType, int *TeamNumber, int *RecTeamNumber) {
	// 0011001000110111
	//&1111000000000000
	// 0011000000000000 >> 12
	//&0000000000001111
	// 0000000000000011
	// 
	// 0011001000110111
	//&0000111111110000 (0x0FF0)
	// 0000001000110000 >> 6
	// 0000000000001000
	// 
	// 0011001000110111
	//&0000000000111111 (0x3F)
	// 0000000000110111

	*BoxType = ((Packed & 0xF000) >> 12) & 0x000F;
	*TeamNumber = (Packed & 0x0FFF) >> 6;
	*RecTeamNumber = Packed & 0x003F;
}