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View Code? Open in Web Editor NEWThe canvas animation effect.
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一年没碰HTML了
HTML和js语法早忘光了
h
发现小bug
鼠标跟随那个；当箭头在原地时，箭头不停地来回变换方向，这是个bug；解决方案。在arrow.x += vx;这一句之前加上if(Math.abs(dx) < speed && Math.abs(dy) < speed){vx = 0;vy = 0;}
当然这是在speed数值较小时，较大时我也暂时不知道怎么做，希望有高人指点。
图片挂了
《每周一点canvas动画》——桌球运动(2)
http://supperjet.github.io/2016/08/01/%E3%80%8A%E6%AF%8F%E5%91%A8%E4%B8%80%E7%82%B9canvas%E5%8A%A8%E7%94%BB%E3%80%8B%E2%80%94%E2%80%94%E6%A1%8C%E7%90%83%E8%BF%90%E5%8A%A8-2/
这篇文章的图全都挂了，segmentfault的文章也删了，能不能补充上图片
一个小建议
三角函数与动画/rotate-to-mouse.html 看这个文件时候 发现RotationToMouse，找了一下才知道在 utils.js 里面，博主可以把RotationToMouse 作为utils的一个属性，这样看起来稍微好点
碰撞检测bug
大神你好！感谢你的教程！我从第一篇一直学到万有引力，非常有帮助！不过我在桌球运动这一篇发现一个bug，有时候小球在碰撞的时候会融合在一起，然后就满屏幕乱跑，我以为是我的代码问题，但是我用了你的代码文件也一样会出现这个问题，尤其是小球比较多的时候。能否请大神指点一二？谢谢！
（我在codepen上面放了我的代码：[https://codepen.io/Joey-z-rp/pen/gxdqgw] ）
作者你好棒
希望能够持续更新，我跟着学 (,,• ₃ •,,)
segmentfault系列文章无法看了
贴上你的博客地址吧
博主应该注明参考文献的
阅读了博主的canvas系列文章，能总结是好事，但是有些文字是直接copy的，而且只字未提《HTML5+Javascript动画基础》这本书，未免有些不厚道了。
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