CODEWITHSUNDEEP
game-makergmlgame-maker-studio-1.4
Jimi Gaspar
Jimi Gaspar

Reputation: 11

Game Maker Networking Issue on Port Bind

I want to create a simple server using GameMaker 1.4. But it's function never works on the first try, no idea why..

var networkType = network_socket_tcp;
var port = 50000;
var maxClients = 32;
var bufferSize = 1024;
var bufferType = buffer_fixed;
var bufferAlign = 1;

server = network_create_server(networkType, port, maxClients);

global.buffer = buffer_create(bufferSize,bufferType,bufferAlign);
sockets = ds_list_create();

if server s_msg("Server is up! Port: " + string(port));
else s_msg("Server is down!");

The message will be "Server down". No matter the port neither the net type. When I try the same code with a loop, it works on the second try. Like this:

var networkType = network_socket_tcp;
var port = 50000;
var maxClients = 32;
var bufferSize = 1024;
var bufferType = buffer_fixed;
var bufferAlign = 1;

server = network_create_server(networkType, port, maxClients);

//////////////////////////////////////////////////////

while (!server && port < 65535){
   port++;
   server = network_create_server(networkType, port, maxClients);
}

//////////////////////////////////////////////////////

global.buffer = buffer_create(bufferSize,bufferType,bufferAlign);
sockets = ds_list_create();

if server s_msg("Server is up! Port: " + string(port));
else s_msg("Server is down!");

Here the message will result on "Server up! Port: 50001". As I said, no matter the port.. it could be set to 50001 at the beginning resulting on create the server to 50002. Could someone point my mistake?

Upvotes: 0

Views: 193

Answers (1)

Jimi Gaspar
Jimi Gaspar

Reputation: 11

SOLUTION (From user Humayun in GM Forums): network_create_server returns an index from 0, so it can't be checked as false/true since the first index would be 0 which returns false. Explains that on the second try i was creating a second instance to the sever variable indexed as 1, and so returning true.

Upvotes: 0

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