引力取反
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main.js
13
main.js
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@ -72,14 +72,13 @@ function updateParticles () {
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particle.vy += forceValue * Math.sin(forceAngle) // 粒子在y轴上的速度
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}
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// 模拟引力
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particle.x += particle.vx * 1000
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particle.y += particle.vy * 1000
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// 引力取反
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particle.vx *= -1
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particle.vy *= -1
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// 只打印第一个粒子的速度
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if (i === 0) {
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console.log(particle.vx, particle.vy)
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}
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// 模拟引力
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particle.x += particle.vx * 10000 // 快进 10000 倍
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particle.y += particle.vy * 10000 // 快进 10000 倍
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}
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}
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