brainfrick

brainfrick is a Brainfuck interpreter made in GML using GameMaker Studio 2.

Features:

• Run code written in brainfuck
• Destroy any and all remaining brain cells you ever had.
• Save and load programs you've written or whatever

What and why?

I wanted to challenge myself. Brainfuck is a super simple programming language. Maybe not in terms of programming for, but in terms of how it works internally. It consists of 8 commands that are all incredibly simple in nature. The entirety of the programming language consists of one array with 30,000 byte cells. All of these cells start at 0 and the program starts on the leftmost entry in the array (Think array[0])

Commands:

>	Increases the data pointer. eg. If the pointer was at 3, you would be at array[2], > would bring you to array[3]
<	Decreases the data pointer. eg. If the pointer was at 3, you would be at array[2], < would bring you to array[1]
+	Increases the current byte. eg. If the pointer was at 3, you would be at array[2], + would be the equivalent of array[2]++
-	Decreases the current byte. eg. If the pointer was at 3, you would be at array[2], - would be the equivalent of array[2]--
.	Prints the current byte. eg. If the pointer was at 3, you would be at array[2], . would be the equivalent of printing the ASCII character of array[2];
,	Accepts a byte of input. eg. If the pointer was at 3, you would be at array[2], , would be the equivalent of setting array[2] to equal the byte inputted
[	Loops everything following it until the current byte equals zero. eg. If the pointer was at 3, you would be at array[2], [ would be the equivalent of while(array[2] > 0){
]	Tells loop where to end, and where to skip to once loop has ended. eg. If the pointer was at 3, you would be at array[2], ] would be the equivalent of }

Closing thoughts:

This was interesting to make. Only took me about 3 hours to create and was really good for learning how programming languages as simple as Brainfuck actually work. If it's something you would all be interested in then I may follow this up with a tutorial on how to recreate the language in GML yourselves, explaining every step along the way. Let me know what you think :)