game-physics

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why we do the things we do to calculate collision response between 2d rigid bodies

Hey looking at this page which describes how to calculate collisions between any two polygons, I have a few questions on why the author takes some of the steps he does. He thoroughly shows how to calc[详细]

2023-04-12 18:58 分类：问答
Given a polygon and a point in 2D, how can one find the feature (vertex or edge) of the polygon closest to the point?

A naive approach is to find, for each edge in the polygon, the point on that edge closest to the given point, and then take the one that\'s closest. Is there a faster algorithm? My goal is to implemen[详细]

2023-04-10 10:32 分类：问答
How to restrict motion to vertical in box2d

I have a box2d body that has a fixture of a ball. It just bounces up and down on top of a rectangular box. Sometimes it will fall off of the box for n开发者_如何学Pythono apparent reason. I there a wa[详细]

2023-04-07 19:23 分类：问答
How many pixels is an impulse in box2d

I have a ball that you blow on with air. I want the ball to be blown more if it is close to the blower and blown less if it is farther away from the blower. I am using box2d and I am us开发者_如何学Go[详细]

2023-04-06 20:13 分类：问答
moving an object from point to point in a linear path

I\'m trying to move a sprite across the screen in a straight line, towards on the location where\'ve I touched the screen, what i did was upon the update() in each loop , it checks to see if the curre[详细]

2023-04-05 15:37 分类：问答
How to make Gears mesh

(I don\'t know a lot of gear type terminology...) I have two gears (Gear A and B) that I\'m trying to get to mesh.[详细]

2023-04-04 17:05 分类：问答
Problem with collision detection of a fast moving ball with a racket controlled by mouse

In unity, i have a racket which is supposed to hit a ball, and the racket is controlled directly by the mouse, i.e the bat is being moved by the mouse using mouse axes and the using transform.translat[详细]

2023-04-04 08:06 分类：问答
Which OpenGL / 3d Framework is used by Android game's developer? [closed]

Closed. This question is seeking recommendations for books, tools, software libraries, and more. It does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-04-04 06:38 分类：问答
Mathematical Vectors and Rotations (Topdown java game dev - physics problem)

I\'ve been working on a top down car game for quite a while now, and it seems it always comes back to being able to do one thing properly.In my instance it\'s getting my car physics properly done.[详细]

2023-04-02 08:40 分类：问答
How do I make a solid rectangle in Java? [closed]

It's difficult to tell what is being asked here. This ques开发者_StackOverflowtion is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current[详细]

2023-04-02 03:24 分类：问答