TO LOAD THIS cartridge in the Pico-8 system, from the immediate mode type:
LOAD #PO
Having seen the THUMBY device (see links below) I thought it surely must be possible to make a device just as small yet instead of using a very small up, down, left, right and (A) and (B) buttons, can't this all be done with a single button instead ?
So I set out to write a proof of concept example in Pico-8. In this it has only two buttons. A MODE on the side and a main center single button.
Button (O) is the center MAIN button and button (X) is the side MODE button.
For the IBM-pc this is key "Z" and "X."
To turn the system on, hold both for a moment. Hold both again to turn the system off.
Once your ship appears there are 2 displays. The upper-left-hand corner shows the number of shots you have fired and the bottom-right shows the direction the ship will move in.
Hold the main button to move the ship in the direction shown.
Tap the main button 2x to reverse the direction.
Tap the main button once to fire off a shot.
I hope this will encourage someone to make a device similar to THUMBY but make it easier for us with bigger hands as the whole thing can truly be controlled from a single button press.
This is where the THUMBY device can be found:
https://www.kickstarter.com/projects/kenburns/thumby-the-tiny-playable-keychain
I first saw this device example HERE:
https://www.lexaloffle.com/bbs/?tid=44927
If someone is interested, I can rewrite this code so it uses only the single button - no mode button at all. In that if you held the main button say 2-seconds, that would signify an ON/OFF signal.