Everything in the event-impact block will be handeled on event_impact no matter what entity triggered it. You have to take care for it by yourself.
Maybe something like this (sry if i missunderstood your question):
Code
void testevent(){
   // --- do every frame
   if (event_type == EVENT_FRAME){ 
      //nothing here right now, just wanted to show how to react on different types in one event
      //c_move/ent_animate what ever
   }
   // --- handle scan events (use SCAN_ENTS[!] to trigger via c_scan)
   //if (event_type == EVENT_SCAN){ 
      //if (you) if (you.ent_id == id_explosion) do_booooom_me_in_the_air_now();
   //}
   // --- finally handle the impact event
   if (event_type == EVENT_IMPACT){ // handle impacts with ALL ents
      if (you) {
         //if (you == ent2){
            //pXent_setcollisionflag (me, ent2, NX_NOTIFY_ON_START_TOUCH); // if me == ent1 dont know right now...
         //}
         //if (you == ent3){
            //pXent_setcollisionflag (me, ent3, NX_NOTIFY_ON_START_TOUCH);
         //}
         pXent_setcollisionflag (me, you, NX_NOTIFY_ON_START_TOUCH); // or maybe only this if ent1=me and you(impacting ent) unknown...
      }
   }
}
action Test_WED(){
   //ent1 = me; // ???
   my.emask |= ENABLE_FRAME|ENABLE_IMPACT; // |ENABLE_SCAN;
   my.event = testevent;
}
Hope this shows the logic behind. Normally you use one event only / ent.

Something like an "id"-skill can helpsto identify different ent-types in events, scans, traces or whatever. Example:
Code
#define ent_id   skill90   // i would not use skill1-10 because you often use them in WED to input unique values for some ents placed in the map.
#define id_dog      1000

action Dog_WED(){
   my.ent_id = id_dog;
   ...
}
...
if (you) if (you.ent_id == id_dog) do_bark();
...


Greets



edit:
tip besides...try to use as few as possible global entity pointers (+always check them before using, make sure not using them while a level loads and so on)!When your project grows, something like this may be hard to track down later (interaction between different entitys causing handle errors etc).

For myself i use a global var called level_loading. Events and other stuff do something like this:
Code
if (event_type == EVENT_FRAME && !level_loading && !freeze_mode){
   ...
}
This way iam sure no empty pointers causing problems when switching the level for example. A good example is a global player entity pointer. Maybe he dies and you simply want to respawn him. While respawning you must take care that no other entity is using the player-pointer cause it might be empty for a frame or more. Such errors might feel like a "random" first.

Another info: If you remove me entity (safe_remove, ptr_remove) in any of the event-type-blocks, make sure to jump out fex via return; cause next thing in the event block will try to use the removed me pointer which may lead to a crash pretty sure cause its empty now.


Btw...
Just wondering is event impact triggered from physic collisions? My guess right now is not, only from ent to ent. Not sure yet...have enough own problems to solve laugh

Acknex umgibt uns...zwischen Dir, mir, dem Stein dort...
"Hey Griswold ... where u gonna put a tree that big ?"
1998 i married my loved wife ... Sheeva from Mortal Kombat, not Evil-Lyn as might have been expected
rayp.flags |= UNTOUCHABLE;