function playerMissile::fire(%this)
{
   %this.setWorldLimit( kill, "0 -1 100 75" );
   %this.setLinearVelocityX(%this.missileSpeed);
   %this.setPosition(%this.player.getPosition());
   %this.setImageMap(playerMissileImageMap);
   %this.setSize(12, 2);
   %this.setCollisionActive( true, true );
   %this.setCollisionPhysics(false, false);
   %this.setCollisionCallback(true);
}

function playerMissile::onCollision( %srcObj, %dstObj, %srcRef, %dstRef, %time, %normal, %contactCount, %contacts )
{
   if(%dstObj.class $= "enemyShip")
   {
      %srcObj.explode();
      %dstObj.explode();
   }
}

function playerMissile::explode(%this)
{
   %this.safeDelete();
}