javascript - 我想创建一个页面，该页面的按钮应放置在随机位置

Question

我想创建一个页面，该页面的按钮应放置在随机位置:

积分:

1)buttons should come within the screen

2)buttons should not collide

Answer 1

我已经扩展了可用的解决方案 here您可以执行以下操作:

[请注意，此解决方案使用 jQuery 而不是 Angular。]

var min_x = 0;
var max_x = 200;
var min_y = 0;
var max_y = 200;
var filled_areas = new Array();

$('.word').each(function() {
    var rand_x=0;
    var rand_y=0;
    var area;
    do {
        rand_x = Math.round(min_x + ((max_x - min_x)*(Math.random() % 1)));
        rand_y = Math.round(min_y + ((max_y - min_y)*(Math.random() % 1)));
        area = {x: rand_x, y: rand_y, width: $(this).width(), height: $(this).height()};
    } while(check_overlap(area));
    
    filled_areas.push(area);
    
    $(this).css({left:rand_x, top: rand_y});
});

function check_overlap(area) {
    for (var i = 0; i < filled_areas.length; i++) {
        
        check_area = filled_areas[i];
        
        var bottom1 = area.y + area.height;
        var bottom2 = check_area.y + check_area.height;
        var top1 = area.y;
        var top2 = check_area.y;
        var left1 = area.x;
        var left2 = check_area.x;
        var right1 = area.x + area.width;
        var right2 = check_area.x + check_area.width;
        if (bottom1 < top2 || top1 > bottom2 || right1 < left2 || left1 > right2) {
            continue;
        }
        return true;
    }
    return false;
}

.word {
    position: absolute;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="word1" class="word"><button>hello</button></div>
<div id="word2" class="word"><button>tag</button></div>
<div id="word3" class="word"><button>cloud</button></div>
<div id="word4" class="word"><button>hello</button></div>