pwab

# This implementation is based on CollisionShapes and RayCasts.
# It has one major flaw: It detects intersections of different lines and not only of the line itself.
# I'm pretty sure this can be circumvented by changing the collision_layers of each line
# or by keeping track of each line and then excluding their collision_bodies when ray casting
# or by removing all the collision bodies when intersection_scanning is done

extends Line2D

var intersections = []  # Keep track of every intersection
var segments = []  # Keep track of every segment

bellbind

// lisp interpreter
// for nodejs-v5: node --es_staging lisp.js
"use strict";

function tokenize(code) {
    const comment = /;.*$/gm;
    const token = /\(|\)|'|,@?|`|"(?:[^"]|\\")*"|[^\s"'`,\(\)]+/g;
    return code.replace(comment, "").match(token) || [];
}
function parse(tokens, depth, tree) {