!752

static int viewSize = 21;
static int interval = 100;
static float speed = 0.3f;
static float minOffset = 0f; // 0.5f; // offset needed to move at all
volatile sbool useDarkCentroid = false;

static JCheckBox cbDark;

p {
  awt {
    showControls(jcenteredLine(
      cbDark = jCheckBox("Focus on dark things", useDarkCentroid, r {
        useDarkCentroid = cbDark.isSelected();
      })
    ));
  }
  new MouseMover mover;
  mover.endAfterInterference = false;
  mover.blockTimeAfterInterference = 1000;
  mover.enable();
  while licensed {
    sleep(interval);
    if (mover.blocked()) continue;
    Point p = mouseLocation();
    Rect area = new Rect(p.x-viewSize/2, p.y-viewSize/2, viewSize, viewSize);
    BWImage img = shootScreenBW(area);
    Pair<Float, Float> c = bwCentroid(img, useDarkCentroid);
    ImageSurface is = quickShowZoomedImage(img.toRGB(), 4);
    float cx = c.a-viewSize/2, cy = c.b-viewSize/2;
    //Pt p2 = new Pt(iround(p.x+cx*speed), iround(p.y+cy*speed));
    Pt p2 = new Pt(p.x+signWithThreshold(cx, minOffset), p.y+signWithThreshold(cy, minOffset));
    print("Moving mouse " + (p2.x-p.x) + "/" + (p2.y-p.y) + " (centroid: " + formatDouble(cx, 2) + "/" + formatDouble(cy, 2) +")");
    mover.moveMouseImmediate(p2);
  }
  mover.disable();
}

Began life as a copy of #1005820