178 lines
3.9 KiB
Vue
178 lines
3.9 KiB
Vue
<template>
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<div class="dv-decoration-1" :ref="ref">
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<svg :width="`${svgWH[0]}px`" :height="`${svgWH[1]}px`" :style="`transform:scale(${svgScale[0]},${svgScale[1]});`">
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<template
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v-for="(point, i) in points"
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>
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<rect
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v-if="Math.random() > 0.6"
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:key="i"
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fill="#fff"
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:x="point[0] - halfPointSideLength"
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:y="point[1] - halfPointSideLength"
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:width="pointSideLength"
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:height="pointSideLength"
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>
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<animate
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v-if="Math.random() > 0.6"
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attributeName="fill"
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values="#fff;transparent"
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dur="1s"
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:begin="Math.random() * 2"
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repeatCount="indefinite"
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/>
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</rect>
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</template>
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<rect
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v-if="rects[0]"
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fill="#0de7c2"
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:x="rects[0][0] - pointSideLength"
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:y="rects[0][1] - pointSideLength"
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:width="pointSideLength * 2"
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:height="pointSideLength * 2"
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>
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<animate
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attributeName="width"
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:values="`0;${pointSideLength * 2}`"
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dur="2s"
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repeatCount="indefinite"
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/>
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<animate
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attributeName="height"
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:values="`0;${pointSideLength * 2}`"
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dur="2s"
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repeatCount="indefinite"
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/>
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<animate
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attributeName="x"
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:values="`${rects[0][0]};${rects[0][0] - pointSideLength}`"
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dur="2s"
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repeatCount="indefinite"
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/>
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<animate
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attributeName="y"
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:values="`${rects[0][1]};${rects[0][1] - pointSideLength}`"
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dur="2s"
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repeatCount="indefinite"
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/>
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</rect>
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<rect
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v-if="rects[1]"
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fill="#0de7c2"
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:x="rects[1][0] - 40"
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:y="rects[1][1] - pointSideLength"
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:width="40"
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:height="pointSideLength * 2"
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>
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<animate
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attributeName="width"
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values="0;40;0"
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dur="2s"
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repeatCount="indefinite"
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/>
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<animate
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attributeName="x"
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:values="`${rects[1][0]};${rects[1][0] - 40};${rects[1][0]}`"
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dur="2s"
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repeatCount="indefinite"
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/>
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</rect>
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</svg>
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</div>
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</template>
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<script>
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import autoResize from '../../mixins/autoResize.js'
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export default {
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name: 'Decoration1',
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mixins: [autoResize],
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data () {
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const pointSideLength = 2.5
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return {
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ref: 'decoration-1',
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svgWH: [200, 50],
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svgScale: [1, 1],
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rowNum: 4,
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rowPoints: 20,
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pointSideLength,
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halfPointSideLength: pointSideLength / 2,
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points: [],
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rects: []
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}
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},
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methods: {
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afterAutoResizeMixinInit () {
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const { calcSVGData } = this
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calcSVGData()
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},
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calcSVGData () {
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const { calcPointsPosition, calcRectsPosition, calcScale } = this
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calcPointsPosition()
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calcRectsPosition()
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calcScale()
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},
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calcPointsPosition () {
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const { svgWH, rowNum, rowPoints } = this
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const [w, h] = svgWH
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const horizontalGap = w / (rowPoints + 1)
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const verticalGap = h / (rowNum + 1)
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let points = new Array(rowNum).fill(0).map((foo, i) =>
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new Array(rowPoints).fill(0).map((foo, j) => [
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horizontalGap * (j + 1), verticalGap * (i + 1)
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]))
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this.points = points.reduce((all, item) => [...all, ...item], [])
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},
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calcRectsPosition () {
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const { points, rowPoints } = this
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const rect1 = points[rowPoints * 2 - 1]
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const rect2 = points[rowPoints * 2 - 3]
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this.rects = [rect1, rect2]
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},
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calcScale () {
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const { width, height, svgWH } = this
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const [w, h] = svgWH
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this.svgScale = [width / w, height / h]
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},
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onResize () {
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const { calcSVGData } = this
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calcSVGData()
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}
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}
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}
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</script>
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<style lang="less">
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.dv-decoration-1 {
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width: 100%;
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height: 100%;
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svg {
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transform-origin: left top;
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}
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}
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</style>
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