Hi,
Here are a few bits of code I have lying around. Some people might find useful. They're pretty simple, but some people might have some use for them.
Flickering Light
Exploding Barrel

and here's a health and armor code (ready for A5 templates, change to _health__003 and _armor__003 for template 6).

Code:

---

//============================= 
//Health And Armor Pack Code 
//--------------- 
//Created By: James A. Burke 
//email: contact@jabigp.com 
//============================= 
//----------------------------- 
//Defines 
//----------------------------- 
DEFINE _health_val, skill1;   //Medical pack value 
DEFINE _armor_val, skill1;      //Armor pack value 

//----------------------------- 
//Prototype Functions 
//----------------------------- 
function healthPackEvent();   //Event called when player collides with a health pack entity 
function armorPackEvent();      //Event called when player collides with an armor pack entity 

//----------------------------- 
//Functions 
//----------------------------- 
//--------------- 
//Desc: Gives the player health 
//--------------- 
function healthPackEvent() 
{ 
   if(player._health + my._health_val > 100) 
   { 
      player._health = 100;   //Don't give the player over 100 health 
   } 
   if(player._health + my._health_val <= 100) 
   { 
      player._health += my._health_val; 
   } 
   my.enable_impact = off; 
   my.event = null; 
   my.invisible = on; 
   my.passable = on; 
   wait(1); 
   ent_remove(my);   //Remove the model 
} 

//--------------- 
//Desc: Gives the player armor 
//--------------- 
function armorPackEvent() 
{ 
   if(player._armor + my._armor_val > 100) 
   { 
      player._armor = 100;   //Don't give the player over 100 armor 
   } 
   if(player._armor + my._armor_val <= 100) 
   { 
      player._armor += my._armor_val; 
   } 
   my.enable_impact = off;   //Inactive now 
   my.event = null; 
   my.invisible = on; 
   my.passable = on; 
   wait(1); 
   ent_remove(my);   //Remove the model 
} 

//----------------------------- 
//Actions 
//----------------------------- 
//--------------- 
//Desc: Standard health pack 
//--------------- 
//uses: _health_val 
action health_pack 
{ 
   while(player == null) 
   { 
      wait(1);      //Prevent empty pointer errors 
   } 
   if(my._health_val <= 0) 
   { 
      my._health_val = 25;      //Give it a default value 
   } 
   while(1) 
   { 
      if(player != null) 
      { 
         if(vec_dist(my.x, player.x) < 100) 
         { 
            player._health = 100; 
            ent_remove(my); 
            return; 
         } 
      } 
      my.pan += 2 * time;   //Rotate the entity 
      wait(1); 
   } 
} 

//--------------- 
//Desc: Standard armor pack 
//--------------- 
//uses: _armor_val 
action armor_pack 
{ 
   if(my._armor_val <= 0) 
   { 
      my._armor_val = 25;      //Give it a default value 
   } 
   my.enable_impact = on; 
   my.event = armorPackEvent; 
} 

---

I would also be happy to hear any suggestions for other codes
Hope this helps,
James