Ballang

Am esoteric programming language about a ball moving around.

How it works

The program is read from program.txt, while input.txt shall contain an initial (integer) value.

The text file for the program is to be thought as a 2D space, where the ball will travel in order to reach the program end.

Example program

*---?/.|
     _ <
     -
     ?
     > ^
     +
     .
     |

This program returns 1 (true) if the input value is >= 4. 0 (false) otherwise.

Syntax

The language supports 12 characters that define the behavior of the ball. When the ball steps on one symbols, the following behaviors take place:

symbol	behaviour
*	The entry point. The ball will start from this symbol (moving left to right). The ball has one value, given by input.txt.
+	Add 1 to the current held value.
-	Subtract 1 to the current held value.
/	Turn the ball clockwise.
\	Turn the ball counter clockwise.
^	Turn the ball upwards.
_	Turn the ball downwards.
<	Turn the ball left.
>	Turn the ball right.
.	Print output.
?	Conditional. The subsequent command will be executed only if the current value is greater than 0.
|	Stop execution.