Manual:DIL Examples

Construction

Every DIL program has the following structure:

 dilbegin programname();
 var
 code
 {}
 dilend

It's nice to think about dils in different categories.

Every dil must run on an object. That object is always going to be 'self' to the program. It will be running from one of the following things:

• A room
• A mobile (npc)
• A player
• An object (thing)
  

Keeping this in mind will help with your program's construction. You can also use dot notation to reference objects relative to the dil or the objects it interacts with. Take self.outside and we'll look at it from each of the object types.

Dil On an Object

So let's say this particular DIL lives on a gem. The gem says nice things to you when it's held. Considerations:
Does it speak when you're incapacitated? Meditating? Fighting? Does it speak when you're invisible? Can other people hear it? How often can it speak?

dilbegin gem_speak();
          var
          code 
          {
             heartbeat := 90*PULSE_SEC; //every 90 seconds. 
             :start:
             wait(SFB_TICK, TRUE and self.outside.type == UNIT_ST_PC);
             act("$1n says 'You look lovely today!'", A_ALWAYS, self.outside, self, null, TO_CHAR);
             goto start;
          }
          dilend

DIL on an NPC

So this particular DIL will live on a NPC or mobile. Perhaps it will say "Greetings" every time an actual player enters the room.

dilbegin hi();
         var
         code
         {
          :start: 
          wait(SFB_DONE, command(CMD_AUTO_ENTER) and activator.type == UNIT_ST_PC);
          exec("say Hello, "+ activator.name +"!", self);
          goto start;
         }
         dilend