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class Box {
constructor(x, y, z, len) {
this.pos = createVector(x, y, z);
this.len = len;
}
show() {
fill(255);
stroke(0);
strokeWeight(4);
push();
translate(this.pos.x, this.pos.y, this.pos.z);
beginShape(QUADS);
const r = this.len / 2;
vertex(-r, -r, 0);
vertex(r, -r, 0);
endShape();
// box(this.len);
pop();
}
}