别离设置色彩、字体大小、用定位来实现不能重叠性能
设置字体大小
Math.floor(Math.random()*10)+10
setColor() {
var r=Math.floor(Math.random()*256);
var g=Math.floor(Math.random()*256);
var b=Math.floor(Math.random()*256);
return "rgb("+r+','+g+','+b+")";
},
setLeft() {
return Math.random() * 100 * 3 + 200
},
setTop() {
if (this.words.length == this.randomTopArr.length) return
let randomTxt = Math.random() * 100 * 3
randomTxt = randomTxt > 230 ? randomTxt / 3 : randomTxt
this.randomTopArr.length && this.randomTopArr.forEach(res => {
if (Math.abs(res - randomTxt) < 30) {
randomTxt = res > randomTxt ? randomTxt - 20 : res - 20
}
})
this.randomTopArr.push(randomTxt)
return randomTxt
}
不能重叠的次要思路是设置top值,只有在肯定范畴内的区间,就不会重叠,用每个随机生成的top值跟曾经存起来的数组每一项进行比照,如果间隔太近,做一下扭转
发表回复