爲什麼此代碼導致無限循環？

Question

我不能爲我的生活找出爲什麼這不起作用。

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

當我刪除最後一條if語句並且無條件地將推送器推送到refP時，它不會給我循環。

謝謝。請讓我知道是否應該清理此代碼，或者嘗試用較少的代碼隔離問題。

Answer 1

您確定您的random和dist功能正常嗎？

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); 
} 

和您的通話random(0, 400)此：

與更換您的distance功能

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

爲我工作。