Inside King's Quest(1984)

if (isset(f5(newRoom))) {
  load.pic(0);
  draw.pic(0);          // Draw castle background
  discard.pic(0);
  set.horizon(50);      // Sky/ground boundary

  // Place moat creatures
  load.view(107);
  animate.obj(11);
  animate.obj(12);
  set.view(11, 107);
  position(11, 121, 161);
  position(12, 73, 166);
  object.on.water(11);
  object.on.water(12);
  wander(11);           // Random movement
  wander(12);

  draw(0);              // Draw ego (Graham)
  show.pic();
  accept.input();
}

// Player types "look"
if (said(2, 137)) {
  print("You are standing outside a castle surrounded
         by an alligator filled moat.");
}

// Player types "swim" near moat
if (said(2, 151)) {
  print("The water in the moat is not conducive
         to swimming.");
}

// Witch appears and chases Graham
load.view(3);           // Witch sprite
animate.obj(1);
set.view(1, 3);         // Assign witch to object 1

// Protection checks
if (isset(f75)) {
  print("Lucky for you that you are invisible,
         the witch can't find you.");
}

if (isset(f70)) {
  print("The witch can feel your protective spell
         and bids a hasty retreat.");
}

// Goat scares witch away!
if (isset(f68)) {
  print("There is a witch in the area, but since
         you have that menacing goat with you,
         she will keep her distance.");
}

// Witch catches you
print("The witch swoops down, grabs you by the neck,
       and carries you off to a fate worse than death.");

// Dragon encounter setup
load.view(33);          // Dragon sprite
load.view(61);          // Fire breath effect
animate.obj(1);
set.view(1, 33);

// Player throws dagger
if (said(174, 146) && has(9)) {
  print("Nervously, you throw the dagger at the dragon
         and strike it in the heart. Death for the
         dragon is instant.");
  // Dragon dies, reveal mirror treasure
}

// Player tries to fight without weapon
print("You need a weapon to fight a dragon!");