Uploaded July 2024 | Updated September 2026, 3 weeks ago
Continuing Homework 1 from
Joachim Breitner's class https://www.seas.upenn.edu/~cis1940/fall16/. We reach Exercise 3, where we finally begin working on some of the functions that will be used in our Sokoban game. Many mistakes are made.
00:00:00 - Intro
00:02:25 - Drawing some boring boxes
00:06:10 - Implementing drawTile
00:12:00 - pictureOfMaze
00:13:50 - I forget how cartesian coordinates work
00:16:00 - Recursion!
00:19:00 - drawRows, drawColumns
00:23:30 - Success!
00:24:40 - Am I helping or hurting my viewers?
Join this channel to get access to perks; the "Thanks, peterb!" tier is a great way to show your support without breaking the bank, and the "Early Access" tier gets you access to most of my videos about a week early.
youtube.com/channel/UCd7i-ppmXgznXLKf-HsB2QQ/join
Continuing Homework 1 from
Joachim Breitner's class https://www.seas.upenn.edu/~cis1940/fall16/. We reach Exercise 3, where we finally begin working on some of the functions that will be used in our Sokoban game. Many mistakes are made.
00:00:00 - Intro
00:02:25 - Drawing some boring boxes
00:06:10 - Implementing drawTile
00:12:00 - pictureOfMaze
00:13:50 - I forget how cartesian coordinates work
00:16:00 - Recursion!
00:19:00 - drawRows, drawColumns
00:23:30 - Success!
00:24:40 - Am I helping or hurting my viewers?
Join this channel to get access to perks; the "Thanks, peterb!" tier is a great way to show your support without breaking the bank, and the "Early Access" tier gets you access to most of my videos about a week early.
youtube.com/channel/UCd7i-ppmXgznXLKf-HsB2QQ/join
![Wordle - on an Apple ][!](https://i.ytimg.com/vi/Q76OnQnY4w8/mqdefault.jpg "Wordle - on an Apple ][!
This week’s video is about Wordle, BASIC, and 8-bit computers. It’s based off a great tweet from one Katie Anderson, katie_panda on Twitter, who wrote a BASIC version of Wordle for the BBC Micro computer, and then went so far as to make a “magazine page” for it in the style of the old game listings from Creative Computing.
For those of you too young to remember this, in the late 1970s and early 1980s, one of the most popular ways of distributing programs wasn’t disk, or even cassette tape, but just…paper. Magazines would have program listings in them - sometimes very, very long program listings, and you would type them in to your computer, run them, and probably save them to cassette or disk yourself. Katie went to the trouble of making this BBC game, so today we’re going to type this listing in to an Apple ][ and see if it works.
When you’re transcribing a game like this, there are three main types of errors. First, sometimes you’d simply type something in wrong. Second, sometimes the programs in the magazine themselves would have typos. Third, sometimes the program would be written for a computer other than the one you were using, and so the commands wouldn’t work the same! Today, I can almost promise you that we’ll see all three of these sorts of errors.
The fun part, though, is that it was the process of encountering and fixing these errors that gave a lot of people their start in programming. Typing in a program is definitely a ponderous way to get your start in computers, but it’s actually a surprisingly effective way to learn.
Let’s hop over to the Apple ][ and get to work.")
