CompSci 94 Fall 22 Exam 1 Solutions

1. B

2A. Decimal number
2B. direction
2C. object
2D. TextString

3. A

4. With parameters you will write less code since you do not need to make
multiple copies of a function with one slight change. Instead you add a
parameter.

5. C
6. A
7. B

8A. 8, 9, 10, 11, 12
8B. story
8C. camel, quadruped
8D. "red train", 8.46, this.bear
8E. phrase, amount, creature
8F. this.bear move forward number
8G. bunny will be smaller
8H. IGNORE, NOT GRADED

9. See additional page for drawing

10A. 
camera move and orient to pig       (camera in pig facing same direction as pig)
camera move forward 1.5
camera turn right 0.5
cameraPigView move and orient to camera         (poodle was renamed to cameraPigView)

ALTERNATE SOLN:

camera moveTo cow
camera orientTo Upright
camera move up 1.0
camera turn right 0.25
camera move forward 0.5
cameraPigView move and orient to camera

10B.

this.camera move and orientTo camera PigView

11.
this.hare move to this.yetiBaby
this.hare turn left 1.0 asSeenBy this.pig
this.hare turnToFace this.panda
this.hare move up 2.0 * this.panda getHeight
this.hare move forward this.hare getDistanceTo this.panda +
                              randomRealNumberInRange 1.0, 2.0
this.hare move down 2.0 * this.panda getHeight +
                         (this.hare getHeight * 0.5)
do together
    this.panda turn backward 0.25
    this.pig turn right 0.25


12A.

procedure RideAndSpin Biped creature, DecimalNumber numberSpins,
                                      DecimalNumber howHigh

do together
    this turnToFace creature
    creature turnToFace this
this move forward this getDistanceInFrontOf creature - 1.0
this move up creature getHeight - 0.5
this move forward 1.3
this turn right 0.5
this setVehicle creature
creature move up howHigh
creature turn right numberSpins
creature move down howHigh