From 9cdc7f962caa5bb21da7a5519b60146e2dcb713c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=A7=89?= <huan0016@gmail.com>
Date: Mon, 23 Oct 2023 02:24:25 +0800
Subject: [PATCH] =?UTF-8?q?=E5=BC=95=E5=8A=9B=E5=8F=96=E5=8F=8D?=
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---
 main.js | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/main.js b/main.js
index 21bc55c..e530b2f 100644
--- a/main.js
+++ b/main.js
@@ -72,14 +72,13 @@ function updateParticles () {
       particle.vy += forceValue * Math.sin(forceAngle) // 粒子在y轴上的速度
     }
 
-    // 模拟引力
-    particle.x += particle.vx * 1000
-    particle.y += particle.vy * 1000
+    // 引力取反
+    particle.vx *= -1
+    particle.vy *= -1
 
-    // 只打印第一个粒子的速度
-    if (i === 0) {
-      console.log(particle.vx, particle.vy)
-    }
+    // 模拟引力
+    particle.x += particle.vx * 10000    // 快进 10000 倍
+    particle.y += particle.vy * 10000    // 快进 10000 倍
   }
 }