132 lines
3.3 KiB
Vue
132 lines
3.3 KiB
Vue
<template>
|
|
<div ref="canvasContainer" id="canvasContainer"></div>
|
|
</template>
|
|
|
|
<script>
|
|
import p5 from 'p5';
|
|
|
|
export default {
|
|
mounted() {
|
|
if (process.client) {
|
|
this.p5Instance = new p5(this.sketch, this.$refs.canvasContainer);
|
|
}
|
|
},
|
|
beforeDestroy() {
|
|
if (this.p5Instance) {
|
|
this.p5Instance.remove();
|
|
}
|
|
},
|
|
methods: {
|
|
sketch(p) {
|
|
let brushStrokes = [];
|
|
const fadingTime = 2000;
|
|
const brushDensity = 30;
|
|
const textureDensity = 2;
|
|
const brushSize = 4;
|
|
|
|
p.setup = () => {
|
|
p.createCanvas(p.windowWidth, p.windowHeight);
|
|
p.clear();
|
|
p.colorMode(p.HSL);
|
|
p.noStroke();
|
|
};
|
|
|
|
p.draw = () => {
|
|
p.clear();
|
|
for (let i = brushStrokes.length - 1; i >= 0; i--) {
|
|
let brushStroke = brushStrokes[i];
|
|
let elapsedTime = p.millis() - brushStroke.startTime;
|
|
if (elapsedTime > fadingTime) {
|
|
brushStrokes.splice(i, 1);
|
|
continue;
|
|
}
|
|
|
|
let isSwiperOpen;
|
|
let swipers = document.querySelectorAll('.swiper');
|
|
for (let swiper of swipers) {
|
|
if (swiper.style.opacity == 1) isSwiperOpen = true;
|
|
}
|
|
|
|
|
|
|
|
if (!isSwiperOpen) {
|
|
let alpha = p.map(elapsedTime, 0, fadingTime, 1, 0);
|
|
|
|
|
|
for (let j = 0; j < brushStroke.dots.length; j++) {
|
|
p.fill(
|
|
brushStroke.dots[j].color.h,
|
|
brushStroke.dots[j].color.s,
|
|
brushStroke.dots[j].color.l,
|
|
alpha);
|
|
|
|
p.ellipse(
|
|
brushStroke.dots[j].x,
|
|
brushStroke.dots[j].y,
|
|
brushStroke.dots[j].size,
|
|
brushStroke.dots[j].size
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
};
|
|
|
|
p.mouseMoved = () => {
|
|
let dots = [];
|
|
for (let j = 0; j < brushDensity; j++) {
|
|
let angle = p.random(p.TWO_PI);
|
|
let r = p.sqrt(p.pow(p.random(1), 2)) * gaussian(brushSize, 3);
|
|
let x = p.mouseX + r * p.cos(angle);
|
|
let y = p.mouseY + r * p.sin(angle);
|
|
dots.push({
|
|
x: x,
|
|
y: y,
|
|
size: p.random(1) * textureDensity,
|
|
color: {
|
|
h: 178,
|
|
s: 20,
|
|
l: constrainedGaussian(22, 10, 10, 100)
|
|
}
|
|
});
|
|
}
|
|
brushStrokes.push({
|
|
x: p.mouseX,
|
|
y: p.mouseY,
|
|
startTime: p.millis(),
|
|
dots: dots
|
|
});
|
|
}
|
|
|
|
function gaussian(mean, sd) {
|
|
let u1 = p.random();
|
|
let u2 = p.random();
|
|
let z0 = p.sqrt(-2.0 * p.log(u1)) * p.cos(p.TWO_PI * u2);
|
|
return z0 * sd + mean;
|
|
}
|
|
|
|
function constrainedGaussian(mean, sd, min, max) {
|
|
let value;
|
|
do {
|
|
value = gaussian(mean, sd);
|
|
} while (value < min || value > max);
|
|
return value;
|
|
}
|
|
}
|
|
|
|
},
|
|
|
|
}
|
|
</script>
|
|
|
|
<style scoped>
|
|
#canvasContainer {
|
|
pointer-events: none;
|
|
top: 0;
|
|
left: 0;
|
|
z-index: 2;
|
|
position: fixed;
|
|
width: 100vw;
|
|
height: 100vh;
|
|
}
|
|
</style> |