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Module.arguments.push('-mnull', '-snull', '-vsdl:relative_mode');
Module['websocket'] = { url: function(host, port, proto) {
/* openttd.org hosts a WebSocket proxy for the content service. */
if (host == "content.openttd.org" && port == 3978 && proto == "tcp") {
return "wss://content.openttd.org/";
}
/* Everything else just tries to make a default WebSocket connection.
* If you run your own server you can setup your own WebSocket proxy in
* front of it and let people connect to your server via the proxy. You
* are best to add another "if" statement as above for this. */
return null;
} };
Module.preRun.push(function() {
personal_dir = '/home/web_user/.openttd';
content_download_dir = personal_dir + '/content_download'
/* Because of the "-c" above, all user-data is stored in /user_data. */
FS.mkdir(personal_dir);
FS.mount(IDBFS, {}, personal_dir);
Module.addRunDependency('syncfs');
FS.syncfs(true, function (err) {
/* FS.mkdir() tends to fail if parent folders do not exist. */
if (!FS.analyzePath(content_download_dir).exists) {
FS.mkdir(content_download_dir);
}
if (!FS.analyzePath(content_download_dir + '/baseset').exists) {
FS.mkdir(content_download_dir + '/baseset');
}
/* Check if the OpenGFX baseset is already downloaded. */
if (!FS.analyzePath(content_download_dir + '/baseset/opengfx-0.6.0.tar').exists) {
window.openttd_downloaded_opengfx = true;
FS.createPreloadedFile(content_download_dir + '/baseset', 'opengfx-0.6.0.tar', 'https://installer.cdn.openttd.org/emscripten/opengfx-0.6.0.tar', true, true);
} else {
/* Fake dependency increase, so the counter is stable. */
Module.addRunDependency('opengfx');
Module.removeRunDependency('opengfx');
}
Module.removeRunDependency('syncfs');
});
window.openttd_syncfs_shown_warning = false;
window.openttd_syncfs = function() {
/* Copy the virtual FS to the persistent storage. */
FS.syncfs(false, function (err) { });
/* On first time, warn the user about the volatile behaviour of
* persistent storage. */
if (!window.openttd_syncfs_shown_warning) {
window.openttd_syncfs_shown_warning = true;
Module.onWarningFs();
}
}
window.openttd_exit = function() {
Module.onExit();
}
window.openttd_abort = function() {
Module.onAbort();
}
window.openttd_server_list = function() {
add_server = Module.cwrap("em_openttd_add_server", null, ["string", "number"]);
/* Add servers that support WebSocket here. Example:
* add_server("localhost", 3979); */
}
var leftButtonDown = false;
document.addEventListener("mousedown", e => {
if (e.button == 0) {
leftButtonDown = true;
}
});
document.addEventListener("mouseup", e => {
if (e.button == 0) {
leftButtonDown = false;
}
});
window.openttd_open_url = function(url, url_len) {
const url_string = UTF8ToString(url, url_len);
function openWindow() {
document.removeEventListener("mouseup", openWindow);
window.open(url_string, '_blank');
}
/* Trying to open the URL while the mouse is down results in the button getting stuck, so wait for the
* mouse to be released before opening it. However, when OpenTTD is lagging, the mouse can get released
* before the button click even registers, so check for that, and open the URL immediately if that's the
* case. */
if (leftButtonDown) {
document.addEventListener("mouseup", openWindow);
} else {
openWindow();
}
}
/* https://github.com/emscripten-core/emscripten/pull/12995 implements this
* properly. Till that time, we use a polyfill. */
SOCKFS.websocket_sock_ops.createPeer_ = SOCKFS.websocket_sock_ops.createPeer;
SOCKFS.websocket_sock_ops.createPeer = function(sock, addr, port)
{
let func = Module['websocket']['url'];
Module['websocket']['url'] = func(addr, port, (sock.type == 2) ? 'udp' : 'tcp');
let ret = SOCKFS.websocket_sock_ops.createPeer_(sock, addr, port);
Module['websocket']['url'] = func;
return ret;
}
});
Module.postRun.push(function() {
/* Check if we downloaded OpenGFX; if so, sync the virtual FS back to the
* IDBFS so OpenGFX is stored persistent. */
if (window['openttd_downloaded_opengfx']) {
FS.syncfs(false, function (err) { });
}
});
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