Artificial Intelligence in Video Games: Towards a Unified Framework

Algorithm 15

Modified target selection in Graven. Health is compared instead of distance.

void  CptTargetingSystem::Update()

{

 int  LowestHPSoFar = MaxInt;

 m_pCurrentTarget = 0;

 //grab a list of all the opponents the owner can sense

 std::list<CptMvAgent2D>  SensedBots;

 SensedBots = m_pOwner->GetSensoryMem()->GetListOfRecentlySensedOpponents();

 std::list<CptMvAgent2D>::const_iterator curBot = SensedBots.begin();

 for  (curBot; curBot != SensedBots.end(); ++curBot)

 {

  //make sure the bot is alive and that it is not the owner

  if  ((curBot)->isAlive() && (curBot != m_pOwner->GetAgent()))

  {

   int  hp = (curBot)->Health();

   if  (hp < LowestHPSoFar)

   {

    LowestHPSoFar = hp;

    m_pCurrentTarget =  curBot;

   }

  }

 }

}