What could be causing this code to continuously loop without end?

Question

What could be causing this code to continuously loop without end?

I've been scratching my head trying to understand why this code isn't working.

var refP = [];
var calculateDistance = function (p1, p2) {
    return dist(p1.x, p1.y, p2.x, p2.y);
}
while (refP.length < 24) {
    var point = {
        x: -1,
        y: -1,
        closestRefPoint: 9999999
    };
    point.x = (random(0, 400));
    point.y = (random(0, 400));
    for (var i = 0; i < refP.length; i++) {
        if (calculateDistance(point, refP[i]) < point.closestRefPoint) {
            point.closestRefPoint = calculateDistance(point, refP[i]);
        }
    }
    if (point.closestRefPoint > 2) {
        refP[refP.length] = point;
    }
}

After removing the last if-statement and unconditionally pushing 'point' onto 'refP', the loop doesn't seem to work as expected.

Any help or suggestions on how to clean up or simplify this code would be greatly appreciated. Thank you!

javascript if-statement infinite-loop

Answer 1

Answer №1

Have you double-checked the functionality of your random and dist functions?

Try updating your distance function to:

var distance = function (point1, point2) {
  var xs = 0;
  var ys = 0;

  xs = point2.x - point1.x;
  xs = xs * xs;

  ys = point2.y - point1.y;
  ys = ys * ys;

  return Math.sqrt( xs + ys );
}

and replace your random(0, 400) calls with:

pusher.x = Math.floor(Math.random() * 400);
pusher.y = Math.floor(Math.random() * 400);

This adjustment worked for me.

Answer 2

Have you double-checked the functionality of your random and dist functions?

Try updating your distance function to:

var distance = function (point1, point2) {
  var xs = 0;
  var ys = 0;

  xs = point2.x - point1.x;
  xs = xs * xs;

  ys = point2.y - point1.y;
  ys = ys * ys;

  return Math.sqrt( xs + ys );
}

and replace your random(0, 400) calls with:

pusher.x = Math.floor(Math.random() * 400);
pusher.y = Math.floor(Math.random() * 400);

This adjustment worked for me.

What could be causing this code to continuously loop without end?

Answer №1

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