微信小程序canvas下雨下雪效果
<!-- wxml -->
<canvas canvas-id="rainCanvas" id="canvas1"></canvas>
<canvas canvas-id="snowCanvas" id="canvas2"></canvas>
<!-- js -->
new DropAnimation({
el: '#canvas1',
ctx: wx.createCanvasContext('rainCanvas'),
speed: 4,
color: '#cccccc',
type: 'rain',
count: 10
})
new DropAnimation({
el: '#canvas2',
ctx: wx.createCanvasContext('snowCanvas'),
speed: 1,
color: '#cccccc',
type: 'snow',
count: 15
})