Time for action – shooting the arrow

Here is the fun part. We're going to shoot the arrow:

1. Open the Hunter.h header file and add the following method declaration after the aimAtPoint: method declaration:

   -(CCSprite*)shootAtPoint:(CGPoint)point;

2. Then, open the Hunter.m file and add the following implementation part of this method:

   -(CCSprite*)shootAtPoint:(CGPoint)point
   {
       //1
       [self aimAtPoint:point];
       
       //2
       CCSprite *arrow = 
         [CCSprite spriteWithImageNamed:@"arrow.png"];
       
       //3
       arrow.anchorPoint = ccp(0, 0.5f);
       
       //4
       CGPoint torsoCenterGlobal = 
         [self torsoCenterInWorldCoordinates];
       arrow.position = torsoCenterGlobal;
       arrow.rotation = _torso.rotation;
       
       //5
       [self.parent addChild:arrow];
       
       //6
       CGSize viewSize = [CCDirector sharedDirector].viewSize;
       CGPoint forwardVector = ccp(1.0f, 0);
       
       float angleRadians =
         -1 * CC_DEGREES_TO_RADIANS(_torso.rotation);
       CGPoint arrowMovementVector =
         ccpRotateByAngle...