Logic for jsWarrior to beat the game. http://jswarrior.fusioncharts.com/

jsWarriorLogic

var maxHealth = 20,
    criticalHealth = 5,
    checkedBehind = false;

jsWarrior.turn = function(warrior) {
  warrior.takingDamage = warrior.lastHealth > warrior.getHealth();
  
  if (warrior.check() == "enemy") {
    warrior.attack();
  }
  else if (warrior.check() == "diamond") {
    warrior.collect();
  } 
  else if (warrior.check('backward') == "diamond") {
    warrior.collect('backward');  
  }
  else if (warrior.check() == "wall") {
    warrior.pivot();
  }
  else if (warrior.takingDamage && warrior.getHealth() < criticalHealth) {
    warrior.walk('backward');    
  } 
  else if (!warrior.takingDamage && warrior.getHealth() < maxHealth) {
    warrior.rest();
  }
  else if (!checkedBehind) {
    warrior.walk('backward');
    checkedBehind = true;
  }
  else {
    warrior.walk()
  }
  
  warrior.lastHealth = warrior.getHealth();
}