100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Problem Set 3 - UBC - CPSC 110 CA$6.26   Add to cart
Quickly navigate to
Preview
  2.  
  3. University Of British Columbia (UBC )
  4.  
  5. Computer Science
  6.  
  7. CPSC 110

Class notes

Problem Set 3 - UBC - CPSC 110
 54 views  0 purchase

Completed file for problem set 3. Remember to copy the pdf file to Dr Racket for a better view. This file should be exactly identical except that the file has answers for each problems.

Preview 2 out of 11  pages

Document information

  • December 20, 2022
  • 11
  • 2022/2023
  • Class notes
  • Gregor kiczales
  • All classes

Subjects

Written for

All documents for this subject (19)

Seller

avatar-seller
tranghane

Reviews received

Content preview

;; DO NOT PUT ANYTHING PERSONALLY IDENTIFYING BEYOND YOUR
CWL IN THIS FILE.
;; YOUR CWLs WILL BE SUFFICIENT TO IDENTIFY YOU AND, IF YOU HAVE
ONE, YOUR
;; PARTNER.
;;

(require 2htdp/image)
(require 2htdp/universe)
(require spd/tags)

(@assignment psets/pset-03);Do not edit or remove this tag

;; If you are:
;; - A 110 or 107 student replace the first set of '???'s with your cwl.
;; For problem sets, If you have a partner, please replace the second
;; set of '???'s with their cwl. Remember this, it is what you will
;; do with these @cwl annotations for the whole course.
;; - A UBC Extended Learning student, replace the first set of ??? with
;; your email address as confirmed in the email you received from
;; extended learning. The handin password is also in that email.
;; Remember this, it is what you will do with these @cwl annotations
;; for the whole course.
;;
(@cwl ??? ???)

;; Bounce a single ball around the screen.

;; IMPORTANT:
;; This problem set will form the basis for problem sets 4 and 5 as well.
;; You are strongly advised to put in the effort to do well on this
;; problem set so that you then have an easier time with problem sets
;; 4 and 5.
;;

;; For this problem set you must complete the design of a world program.
;; The complete program must have the following behaviour:
;; - there is a green background, with a single white ball
;; bouncing around inside that box
;; - when the ball hits the top/right/bottom/left of the box it
;; bounces in the usual way a ball would bounce off of a wall

, ;; - clicking the mouse replaces the ball with a new ball, at the
;; current mouse position, and with a small random x,y velocity
;;
;; Note that we are giving you significant help in the starter file.
;; There is a complete data design, some complete helper functions, as
;; well as a some wish list entries. You absolutely MUST
;; - not edit any of the complete design elements we give you
;; - complete the wish list entries we give you, and do so in a way
;; that is consistent with the rest of the design we give you
;; - must use the helpers we give you as part of your solution
;;
;; We recommend that you begin by first going through the entire file to
;; understand what is already complete and what you need to complete.
;;
(@problem 1)
(@htdw Ball)

;; Constants:
(define WIDTH 605)
(define HEIGHT 535)

(define BALL-RADIUS 10)

(define TOP (+ 0 BALL-RADIUS)) ;these constants define the "inner box"
(define BOT (- HEIGHT 1 BALL-RADIUS)) ;that constrains the center of the ball
(define LEF (+ 0 BALL-RADIUS)) ;
(define RIG (- WIDTH 1 BALL-RADIUS)) ;

(define BALL (circle BALL-RADIUS "solid" "white"))

(define MTS (rectangle WIDTH HEIGHT "solid" "green"))


;;
============================================================
===============
;;
============================================================
===============
;; Data definitions:

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller tranghane. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$6.26. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

78600 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$6.26
  • (0)
  Add to cart