int packet_handshake(struct client *client, bedrock_packet *p)
{
int32_t proto;
char server_address[BEDROCK_MAX_STRING_LENGTH];
uint16_t server_port;
int32_t state;
packet_read_varint(p, &proto);
packet_read_string(p, server_address, sizeof(server_address));
packet_read_int(p, &server_port, sizeof(server_port));
packet_read_varint(p, &state);
if (p->error)
return p->error;
if (proto != BEDROCK_PROTOCOL_VERSION)
{
packet_send_disconnect(client, "Incorrect version");
return ERROR_OK;
}
switch (state)
{
case STATUS:
client->state = STATE_STATUS;
break;
case LOGIN:
client->state = STATE_LOGIN;
break;
default:
packet_send_disconnect(client, "Unknown state");
return ERROR_UNEXPECTED;
}
return ERROR_OK;
}
int packet_position(struct client *client, bedrock_packet *p)
{
double x, y, z;
bool on_ground;
packet_read_double(p, &x);
packet_read_double(p, &y);
packet_read_double(p, &z);
packet_read_bool(p, &on_ground);
if (p->error)
return p->error;
if (!(client->state & STATE_BURSTING) && (abs(x - client->x) > 100 || abs(z - client->z) > 100))
{
packet_send_disconnect(client, "Moving too fast");
return ERROR_OK;
}
client_update_position(client, x, y, z, client->yaw, client->pitch, y + 1.62, on_ground); // XXX?
return ERROR_OK;
}