blocks|key|52909|text|我真的很喜欢这个，它是一周前刚到的，除了相对论效果之外，它是你想要的一切：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|52910|http://www.amazon.com/Physics-Game-Programmers-Grant-Palmer/dp/159059472X|offset|length|52911|entityMap|0|LINK|mutability|MUTABLE|url|https://rads.stackoverflow.com/amzn/click/com/159059472X^0|0|0|21|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

I really like this one, it just arrived a week ago and it's everything you could want short of doing relativistic effects:

<a href="https://rads.stackoverflow.com/amzn/click/com/159059472X" rel="nofollow noreferrer" rel="nofollow noreferrer">http://www.amazon.com/Physics-Game-Programmers-Grant-Palmer/dp/159059472X</a>

blocks|key|2537275|text|物理引擎非常复杂。你最好使用现有的一个。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2537276|2537277|Farseer+(从旧版本的Box2D).|unordered-list-item|offset|length|2537278|Box2d衍生而来的bindings)|2537279|Chipmunk+(C#+)+(C%2B%2B，它有.NET端口(C，我不认为它有C#端口，但你可以做一个)。|2537280|2537281|如果你想在你的游戏中使用物理，使用Farseer或者Box2D绑定。如果你想学习物理学，可以考虑制作Box2D的C#+port，或者花鼠。如果你只是好奇，他们所有的代码都是开源的。|2537282|entityMap|0|LINK|mutability|MUTABLE|url|http://farseerphysics.codeplex.com/|1|http://code.google.com/p/box2d/|2|http://code.google.com/p/chipmunk-physics/^0|0|0|0|7|0|0|0|5|1|0|0|8|2|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|11|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|12|8|@]|9|@$F|13|G|14|1|15]]|A|$]]|$1|H|3|I|5|E|7|16|8|@]|9|@$F|17|G|18|1|19]]|A|$]]|$1|J|3|K|5|E|7|1A|8|@]|9|@$F|1B|G|1C|1|1D]]|A|$]]|$1|L|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|1F|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]|W|$5|R|S|T|A|$U|X]]|Y|$5|R|S|T|A|$U|Z]]]]

Physics engines are very complicated. You would be much better off using an existing one.

<ul>
<li><a href="http://farseerphysics.codeplex.com/" rel="nofollow noreferrer">Farseer</a> (C#, derived from an older version of Box2D).</li>
<li><a href="http://code.google.com/p/box2d/" rel="nofollow noreferrer">Box2d</a> (C++, It has .NET bindings)</li>
<li><a href="http://code.google.com/p/chipmunk-physics/" rel="nofollow noreferrer">Chipmunk</a> (C, I don't think it has a C# port, but you could make one).</li>
</ul>

If you want to use physics in your game, use Farseer, or a Box2D bindings. If you want to learn about physics, consider making C# port of Box2D, or Chipmunk. If you are just curious, all of their code is open source.

blocks|key|52829|text|你需要多少细节？回答这些问题中的一些将帮助您消除不能完成所需功能的包。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|52830|你需要担心对象的旋转吗？然后你需要关注杠杆臂，角动量，惯性矩和扭矩。|52831|你需要担心变形吗？然后你需要进入有限元分析，应力/应变等--描述物体内部如何对外力做出反应的东西。|52832|那么摩擦效应呢？然后你需要摩擦系数，或者可能的空气阻力的速度模型。|52833|引力效应？电磁效应？其他力量？|52834|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|O|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

How much detail do you need? Answering some of these questions would help you eliminate packages that don't do what you need.

Do you have to worry about object rotation? Then you need to be concerned about lever arms, angular momentum, moments of inertia, and torques.

Do you have to worry about deformation? Then you need to get into finite element analysis, stress/strain, etc. -- something that describes how the objects respond internally to external forces.

What about frictional effects? Then you'll need coefficients of friction, or possibly velocity models for air resistance.

Gravitational effects? Electromagnetic effects? Other forces?

blocks|key|2537337|text|您已经提到的N+tutorial是一个很好的入门资源。我也推荐一篇非常好的文章2D+Polygon+Collision+Detection。它为使用分离轴定理的多边形碰撞检测提供了一个很好的C#实现和示例，并更好地解释了一些概念。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2537338|就对冲突的响应而言，这取决于场景。对于游戏，您可能希望基于当前速度检查可能的碰撞，然后简单地调整实际速度以防止碰撞。你也可以实现某种“反弹”效果。在任何情况下，它都可能同时调整对象的速度和方向。|2537339|可以使用分离轴定理进行碰撞检测，也可以使用多边形投影在特定轴上找到到目标的距离。(大多数情况下是您移动的向量)。|2537340|entityMap|0|LINK|mutability|MUTABLE|url|http://www.metanetsoftware.com/technique/tutorialA.html|1|http://www.codeproject.com/KB/GDI-plus/PolygonCollision.aspx^0|6|A|0|13|U|1|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]|$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|Z|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|10|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]]]

The <a href="http://www.metanetsoftware.com/technique/tutorialA.html" rel="noreferrer">N tutorial</a> that you mentioned already is a great resource to start with. I also recommend the very good article <a href="http://www.codeproject.com/KB/GDI-plus/PolygonCollision.aspx" rel="noreferrer">2D Polygon Collision Detection</a>. It comes with a great C# implementation and example for polygon collision detection using the Separating Axis Theorem and explains some of the concepts better.

As far as responding to a collision is concerned it depends on the scenario. For games you might want to check for a possible collision based on the current velocity and then simply adjust the actual velocity to prevent collision. You could also implement some sort of 'bounce' effect. In any case it will likely be adjusting both the velocity and direction of the object.

You can use the Separating Axis Theorem to do the collision detection and also use polygon projection to find the distance to the target on a specific axis. (most of the time the vector on which you move).

blocks|key|2537342|text|你看过Cocos2d吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2537343|2537344|Intro+to+Cocos2D+Tutorial|unordered-list-item|2537345|Intro+to+Box2D+Tutorial|2537346|How+to+Create+a+Breakout+Game+with+Box2D+and+Cocos2D+Tutorial:+Part+1/2|2537347|How+to+Create+a+Breakout+Game+with+Box2D+and+Cocos2D+Tutorial:+Part+2/2|2537348|2537349|entityMap|0|LINK|mutability|MUTABLE|url|http://www.cocos2d.org/|1|http://www.raywenderlich.com/352/how-to-make-a-simple-iphone-game-with-cocos2d-tutorial|2|http://www.raywenderlich.com/457/intro-to-box2d-with-cocos2d-tutorial-bouncing-balls%2522|3|http://www.raywenderlich.com/475/how-to-create-a-simple-breakout-game-with-box2d-and-cocos2d-tutorial-part-12?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%253A%2BRayWenderlich%2B%2528Ray%2BWenderlich%2B%7C%2BiPhone%2BDeveloper%2Band%2BGamer%2529&utm_content=Google%2BReader|4|http://www.raywenderlich.com/505/how-to-create-a-simple-breakout-game-with-box2d-and-cocos2d-tutorial-part-22?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%253A%2BRayWenderlich%2B%2528Ray%2BWenderlich%2B%7C%2BiPhone%2BDeveloper%2Band%2BGamer%2529&utm_content=Google%2BReader^0|3|7|0|0|0|0|P|1|0|0|N|2|0|0|1Z|3|0|0|1Z|4|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@$A|15|B|16|1|17]]|C|$]]|$1|D|3|-4|5|6|7|18|8|@]|9|@]|C|$]]|$1|E|3|F|5|G|7|19|8|@]|9|@$A|1A|B|1B|1|1C]]|C|$]]|$1|H|3|I|5|G|7|1D|8|@]|9|@$A|1E|B|1F|1|1G]]|C|$]]|$1|J|3|K|5|G|7|1H|8|@]|9|@$A|1I|B|1J|1|1K]]|C|$]]|$1|L|3|M|5|G|7|1L|8|@]|9|@$A|1M|B|1N|1|1O]]|C|$]]|$1|N|3|-4|5|6|7|1P|8|@]|9|@]|C|$]]|$1|O|3|-4|5|6|7|1Q|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]|W|$5|R|S|T|C|$U|X]]|Y|$5|R|S|T|C|$U|Z]]|10|$5|R|S|T|C|$U|11]]|12|$5|R|S|T|C|$U|13]]]]

Have you looked at <a href="http://www.cocos2d.org/" rel="nofollow noreferrer">Cocos2d</a>? 

<ul>
<li><a href="http://www.raywenderlich.com/352/how-to-make-a-simple-iphone-game-with-cocos2d-tutorial" rel="nofollow noreferrer">Intro to Cocos2D Tutorial</a></li>
<li><a href="http://www.raywenderlich.com/457/intro-to-box2d-with-cocos2d-tutorial-bouncing-balls%22" rel="nofollow noreferrer">Intro to Box2D Tutorial</a></li>
<li><a href="http://www.raywenderlich.com/475/how-to-create-a-simple-breakout-game-with-box2d-and-cocos2d-tutorial-part-12?utm_source=feedburner&amp;utm_medium=feed&amp;utm_campaign=Feed%3A+RayWenderlich+%28Ray+Wenderlich+|+iPhone+Developer+and+Gamer%29&amp;utm_content=Google+Reader" rel="nofollow noreferrer">How to Create a Breakout Game with Box2D and Cocos2D Tutorial: Part 1/2</a></li>
<li><a href="http://www.raywenderlich.com/505/how-to-create-a-simple-breakout-game-with-box2d-and-cocos2d-tutorial-part-22?utm_source=feedburner&amp;utm_medium=feed&amp;utm_campaign=Feed%3A+RayWenderlich+%28Ray+Wenderlich+|+iPhone+Developer+and+Gamer%29&amp;utm_content=Google+Reader" rel="nofollow noreferrer">How to Create a Breakout Game with Box2D and Cocos2D Tutorial: Part 2/2</a></li>
</ul>

blocks|key|2537362|text|如果您想要冲突响应的基本答案，请参阅以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2537363|for+each+pair+of+objects+that+collide
++++ask+gently+to+the+collision+detection+lib+their+interpenetration+distance
++++Apply+an+impulse+(i.e.+a+force+in+the+duration+of+the+frame)+to+both+objects+:
++++++++force+proportional+to+penetration+depth+(you+will+have+to+tune+the+coef+by+hand)
++++++++direction+:+perpendicular+to+the+collision+normal.
++++++++application+point+:+the+collision+point+(approximately,+since+it+s+not+a+point+anymore+but+a+volume)
integrate+(Euler,+Verlet,+)\|code-block|syntax|javascript|2537364|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you want a basic answer for collision response, here it is : 

<pre><code>for each pair of objects that collide
 ask gently to the collision detection lib their interpenetration distance
 Apply an impulse (i.e. a force in the duration of the frame) to both objects :
 force proportional to penetration depth (you will have to tune the coef by hand)
 direction : perpendicular to the collision normal.
 application point : the collision point (approximately, since it s not a point anymore but a volume)
integrate (Euler, Verlet, )\
</code></pre>

blocks|key|2747302|text|我也在搜索同样的信息，到目前为止我发现的最有用的东西是|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2747303|http://www.myphysicslab.com/collision.html|offset|length|2747304|对我来说最糟糕的事情是，这是没有摩擦的(只有正切碰撞脉冲)，我认为有这种摩擦脉冲的会更好，但仍然找不到如何正确实现的教程。|2747305|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|16|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@$D|Q|E|R|1|S]]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|C]]]]

I was searching for same info too, The most usable
thing i found so far was

<a href="http://www.myphysicslab.com/collision.html" rel="nofollow">http://www.myphysicslab.com/collision.html</a>

the worse thing here for me is tahat this is
withoout friction (tangent collision impulse 
only normal impulse) and I think the one with 
such friction impulse would be better but still
not found a tutorial how to correctly implement 
that

Hey, I'm currently looking for various methods of implementing collision response in 2D video games, something similar to this tutorial Metanet has: <a href="http://www.metanetsoftware.com/technique/tutorialA.html" rel="noreferrer">N Tutorial</a> I'm looking to implement something in XNA, but any language would be fine. I'm more interested in implementing programmatically than actual theory. I'd prefer more beginner friendly material, but I do welcome more advance topics.
So could someone suggest some good 2D collision response articles/books?
(PS: I'm more interested in response than detection)

Good 2D Collision Response References

嘿，我目前正在寻找在2D视频游戏中实现碰撞响应的各种方法，类似于本教程Metanet有：我希望在XNA中实现一些东西，但任何语言都可以。我对以编程方式实现的更感兴趣，而不是实际的理论。我更喜欢更适合初学者的材料，但我确实欢迎更高级的主题。因此，有人可以推荐一些好的2D碰撞响应文章/书籍吗？(PS:我更感兴趣的是响应而不...

问良好的2D碰撞响应参考
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