mcproto/packet.ha


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use math;
use trace;

export fn encode_packet(out: *[]u8, packet_id: i32, in: []u8) void = {
	let id_size = math::bit_size_u32(packet_id: u32);
	if (id_size == 0) id_size = 1;
	const id_size = id_size / 7 + id_size % 7;
	assert(len(in) + id_size <= 0x1fffff,
		"TODO: sent packet too long. this should be handled better.");

	encode_varint(out, packet_id);
	append(out, in...);
};