TXYBNIZ

This project is a web app combining two awesome creative coding systems - tixy.land and IBNIZ.

The IBNIZ VM is not yet complete, and can basically only evaluate simple expressions right now.

Documentation

IBNIZ is a stack based language, and this explanation assumes some familiarity with this type of language. It uses 16.16 fixed point numbers as the only data type, and most operations are a single character.

Every frame, for each dot, your IBNIZ program will be run. The stack is reset for each run, unlike the original IBNIZ VM. Three values are pushed to the stack for each run - the current time, the y position of the current dot, and the x position of the current dot. Time is given in seconds, and positions are given in the range -1 to 1. The value you leave at the top of the stack will be used as the value for the current dot, in the range -1 to 1.

Operations

The only operation that is more than one character is the immediate value operation. A sequence of uppercase hex characters, possibly including a radix point (.) will be interpreted as a hexadecimal 16.16 fixed point number, and pushed directly to the stack.

Character	Operation	Notes
+	Add
-	Subtract
*	Multiply
/	Divide	If second input is 0, result is 0.
%	Modulo	If second input is 0, result is 0.
q	Square Root	If input is negative, result is 0.
&	And
|	Or
^	Xor
r	Right Rotate
l	Left Shift
~	Not
s	Sin	sin(a * 2PI)
a	Atan2	atan2(a, b) / 2PI
<	Is Negative	If input is positive, result is 0, otherwise input.
>	Is Positive	If input is negative, result is 0, otherwise input.
=	Is Zero	If input is 0, result is 1, otherwise 0.
d	Duplicate
p	Pop
x	Exchange
v	Rotate	Move third element to top of stack
)	Pick	Copy value from position on stack
(	Bury	Overwrite position on stack with value

Running

Use the web version at soxfox.me/txybniz.

Alternatively, clone the repo and run:

npm install
npm start

Then open a browser to localhost:1234.