CompSci 94 Fall 2024 Exam 1 Solutions

1. B) this.panda move RIGHT 1.0

2. A) Object
   B) TextString
   C) Integer OR Whole Number
   D) Decimal Number

3. C) this.pig move UP 1.0

4. A) The objects must look realistic

5. D) do in order
            this.tortoise turn LEFT 0.25
            this.tortoise move BACKWARDS 1.0

6. D) do in order
            this.panda moveAndOrientTo this.pig
            this.panda move LEFT 1.0

7. A) do in order
            this.bunny turn LEFT, 0.5, asSeenBy this.tortoise
            this.tortoise turn RIGHT, 0.5

8. 
A) moveFast
B) amount, saying, someDirection
C) 2.5, "This is fun", RIGHT
D) playWithFriend
E) yes, SJointedModel includes Biped, it is a superclass of Biped
F) paint
G) The bunny turns green in color
H) The tortoise is still visible, just see through. It has lost 60 percent of its visibility. 

9. see drawing

10.
a) One Soln (moves poodle to position)
this.pandaBackView moveAndOrientTo this.panda
this.pandaBackView move BACKWARD 1.5
this.pandaBackView move UP 0.5
this.pandaBackView setOpacity 0.0

ALTERNATIVE SOLN: (moves camera to position, then places poodle on top of camera)
this.camera moveAndOrientTo this.panda
this.camera move BACKWARD 1.5
this.camera move UP 0.5
this.pandaBackView moveAndOrientTo this.camera
this.pandaBackView setOpacity 0.0

ALTERNATIVE SOLN 2: (moves camera to position different way, 
then places poodle on top of camera)
this.camera moveTo this.panda
this.camera orientToUpright
this.camera turn right 0.5
this.camera move BACKWARD 1.5
this.camera move UP 0.5
this.pandaBackView moveAndOrientTo this.camera
this.pandaBackView setOpacity 0.0


b) this.camera moveAndOrientTo this.pandaBackView

11.
this.whiteRabbit turnToFace this.pig
this.whiteRabbit move FORWARD whiteRabbit getdistanceTo this.pig -1.5
this.pig turn LEFT 0.25
this.pig turn RIGHT 0.5 asSeenBy this.whiteRabbit
this.pig turnToFace this.panda
this.pig say "hello there"
this.pig move DOWN this.pig getHeight / 2.0
this.pig move FORWARD this.pig getDistanceTo this.panda - 0.5
this.panda setPaint ORANGE
this.panda setVehicle this.pig
this.pig move FORWARD 20.0 

ALTERNATIVE SOLUTION
this.whiteRabbit turnToFace this.pig
this.whiteRabbit move FORWARD whiteRabbit getdistanceInFrontOf this.pig -1.0
this.pig turn RIGHT 0.25
this.pig turn LEFT 0.5 asSeenBy this.whiteRabbit
this.pig turnToFace this.panda
this.pig say "hello there"
this.pig move DOWN this.pig getHeight * 0.5
this.pig move FORWARD this.pig getDistanceTo this.panda - this.panda getDepth /2.0
this.panda setPaint ORANGE
this.panda setVehicle this.pig
this.pig move FORWARD 20.0 

12. 
A)
declare procedure exchange with parameters: Biped friend, DecimalNumber distancePast, TextString greeting
do together
    this turnToFace friend
    friend turnToFace this
this say greeting
this move FORWARD this getDistanceTo friend - 1.5
this move UP friend getHeight
this move FORWARD 1.0
do together
    this move DOWN friend getHeight
    friend move FORWARD distancePast

B)
this.tortoise exchange friend: this.panda, distancePast: 6.0, greeting: "Hi Panda"