Script Based Events
Those events are tie to a script name/ResRef they will run whenever the script that they are registered to is called. It is good to change the behaviour or a specific script by bypassing it or when the caller doesn't matter, but if you want to do something only when something happen to a specific object, you should use the Variable Based Event system.
Registering / Unregistering a Script Based Event
This is done with the 2 following functions:
void RegisterEvent(string sEvent, string sScript);
void UnregisterEvent(string sEvent, string sScript);
For example, the following line:RegisterEvent("pc_ev_death", "myerf_ev_pcdeath")... will cause the myerf_ev_pcdeath script to be called before and every time that the pc_ev_death is about to be executed.
The parameters can be accessed the same way as the original script and the caller will be the same.
Creating / Running a Script Based Event
If in the middle of a script you want to notify everyone interested by what is happening, you can use the [Execute Script] function, but better, you can use the RunEvent(ReturnType) functions, which will create a script based event that can be registered, have parameters and a return value:
int RunEvent(string sScript, object oTarget, array aParams);int RunEventInt(string sScript, object oTarget, array aParams);object RunEventObject(string sScript, object oTarget, array aParams);string RunEventString(string sScript, object oTarget, array aParams);float RunEventFloat(string sScript, object oTarget, array aParams);effect RunEventEffect(string sScript, object oTarget, array aParams);array RunEventArray(string sScript, object oTarget, array aParams);dictionary RunEventDictionary(string sScript, object oTarget, array aParams);vector RunEventVector(string sScript, object oTarget, array aParams);location RunEventLocation(string sScript, object oTarget, array aParams);