C64 BASIC Part 3: IF Logic, Positioning Text, and Reading the Keyboard

[@TheDarkmore]

Bubble sort is great, I use it in RPGs to find out which character has the highest value in a skill and I make the skillcheck against that, took some time to find it out on my own, great idea to include it here!

[@RetroGameCoders]

Cool! Yeah it is a bit overkill for sorting 4 numbers but it is a very useful subroutine to have in the toolbox :D

[@alexmcd378]

Bubble sort hurts me deep inside. Please don't use it. There are so much better options.

[@RetroGameCoders]

@@alexmcd378 depends on your definition of better. In this case it is easy to understand, quick to implement and works "good enough" :)

[@alexmcd378]

@@RetroGameCoders yes, for 4 elements it's not too bad. But I could easily see someone carrying it forward to 100+ elements and wondering why it takes forever.

[@RetroGameCoders]

@@alexmcd378 well in the video I’m sure I do say it’s not the most efficient :)

[@RasVoja]

Its great to see CBM Basic lessons. I wonder when will someone have similar lessons for MEGA65 newer basic, Sinclair QL SuperBASIC and I believe BBC Basic as best and mightiest basic versions

[@DavideNastri]

Thanks for this great series of videos!

[@RetroGameCoders]

Thank you, I appreciate it - my videos never get many views so I live for positive comments ;)

[@be236]

In Commodore BASIC 2.0, it seems with IF, there's no ELSE clause, that later BASIC versions have... interesting...

[@RetroGameCoders]

Yeah IF ELSE was not in the earlier Commodore versions, the closest was a kind of Switch ability using ON (ON X GOTO 100,200,300)

[@rodneydaub3812]

This is great

[@RetroGameCoders]

Thank you!

[@AllGamingStarred]

So i use Get a$ to read the keyboard, then (left) and so on for character movement?

[@RetroGameCoders]

Yes a$ will contain the pressed key

[@AllGamingStarred]

@@RetroGameCoders Here's what I don't get though: I checked your code and nowhere does it state that the @ key is the character, unless the long string of characters then the @ key is it. Anyway, I tried it a few times, Didn't work. Also, your site doesn't have the code written in plain text. Could you update with that in mind?

[@AllGamingStarred]

@@RetroGameCoders I understand now. thank you

[@tylertaylor7800]

Have you setup a Discord for this channel?

[@RetroGameCoders]

No, there didn't seem enough interest :)

[@tylertaylor7800]

@@RetroGameCoders build it and they will come.

[@CityXen]

Is there a repository for these examples?

[@RetroGameCoders]

There’s a zip containing the d64