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shanecelis

Cart #xpbd-0 | 2023-11-05 | Code ▽ | Embed ▽ | No License
4

Library

This is a library to simulate physics using the eXtended Position Based Dynamics (XPBD) methodology.

xpbd.p8

  • page 0, library - 1368 tokens
  • page 1, demo - 698 tokens

Demo

It contains the following demos you can access with the left and right keys:

  • a single bead on a ring;
  • multiple beads on a ring;
  • a squishy square;
  • and an about page with particles.

The bead examples are ports of Matthias Muller's [ten minute physics][10min] examples.

Usage

Include the first page for the library contents without any demo code.

 
#include xpbd.p8:0

function _init()
  local a = particle:new { pos = vec(64, 64) } }
  local b = particle:new { pos = vec(74, 64) } }

[ [size=16][color=#ffaabb] [ Continue Reading.. ] [/color][/size] ](/bbs/?pid=136950#p)
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1 comment




keyboard-lemons.p8

  • page 1, library - 181 tokens
  • page 2, demo - 301 tokens

This cart is principally a library for interacting with the user in a query and response format using the keyboard.

Usage

You can include the library in your own cart by including only the first page:

 
#include keyboard-lemons.p8:1

The second page includes a demo with an old kids' game called lemons. The most salient feature is that user queries can be written straightfowardly:

 
answer = prompt("what's 2+2? ")

The magic—as it often does—lies in a little thing called coroutines.

Demo

Cart #keyboard_lemons-0 | 2023-10-26 | Code ▽ | Embed ▽ | No License
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This is actually one of the first computer games I ever wrote, back then in gw-basic. It was a silly

[ Continue Reading.. ]

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I've started to dip my toe into thinking about token minimization. Now I write most of my code in Emacs' pico8-mode, which I love since it presents the code in the same font as pico-8 so I don't feel I've strayed too far.

But I've been aching for a way to count tokens outside of pico8's editor. I found the p8tool which can do that and more, so I wrote this elisp function to make it accessible for me within Emacs. 

(defun pico8-token-count (beginning end)
    "Calculate the number of pico-8 tokens in the file or region."
    (interactive "r")
    (let ((path (if (use-region-p)
                  (let ((temp-file (make-temp-file "token-count-" nil ".p8")))
                      (write-region "pico-8 cartridge // http://www.pico-8.com\nversion 5\n__lua__\n" nil temp-file)
                      (write-region beginning end temp-file t)

[ [size=16][color=#ffaabb] [ Continue Reading.. ] [/color][/size] ](/bbs/?pid=136058#p)
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Cart #tinytest-0 | 2023-09-09 | Code ▽ | Embed ▽ | No License
2


This is the tinytest library for pico-8; it was inspired by the tinytest javascript library by Joe Walnes. It provides a basic unit test framework.

You can use it one of two ways: as a no frills library or as a singing, dancing cart.

Library Usage

You will enjoy colored text reports but otherwise no frills, but it's very flexible this way.

 
#include tinytest.p8

tinytest:new():run({
  demo_pass = function(t)
    t:ok(true, "hi")
  end,

  demo_fail = function(t)
    t:ok(false, "bye")
  end,

  demo_error = function(t)

[ [size=16][color=#ffaabb] [ Continue Reading.. ] [/color][/size] ](/bbs/?pid=134089#p)
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Cart #cardboard_toad-0 | 2023-02-28 | Code ▽ | Embed ▽ | No License
4

My six year old and I made this game for her upcoming birthday. She was inspired by paper mario and the idea of a pinata that ran away.

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