1,007
edits
Changes
→Writing a Tracker class
== Writing a Tracker class ==
<pre>
function FooTracker() {
this._init();
}
FooTracker.prototype = {
__proto__: Tracker.prototype,
_logName: "FooTracker",
file: "foo",
_init: function FooTracker_init() {
// The ugly syntax on the next line calls the base class's init method:
this.__proto__.__proto__.init.call(this);
/* Here is where you would register your tracker as an observer, so that
its onEvent() (or other appropriately named) method can be called
in response to events. */
},
onEvent: function FooTracker_onEvent() {
/* Here is where you'd handle the event. See the documentation for
whatever service you are observing to find out what to call this
method, what arguments to expect, and how to interpret them. */
var guid = 0;
/* Here is where you'd include code to figure out the GUID of the item
that has changed... */
this.addChangedId(guid);
// Update the score as you see fit:
this._score += 10;
}
};
</pre>
== Writing an Engine class ==
