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
making dynamic bodies fall JBox2D

I\'m having some problems with JBox2D. I\'ve created a ball and world and everything as far as I can tell correctly, but when I call the world.step() method it dosen\'t make the ball fall from gravity[详细]

2023-04-12 13:46 分类：问答
Corona SDK and moving objects

I have shapes (Rectangle) in my game and want to implement something like - when the shape object is pressed for small amount of time and pushed in any direction it should move small distance but pres[详细]

2023-04-12 12:01 分类：问答
Finding Contact point - Box2d with Cocos2d

I\'m building a game with Cocos2d + Box2d I want my hero\'s jump direction to be orthogonal to the ground he is standing on.[详细]

2023-04-10 19:59 分类：问答
reaching particular co-ordinate in projectile motion?

As I wanted to animate an image in projectile motion, My code is as follows, but it did not reach the target and give projectile animation, any help please?[详细]

2023-04-08 21:24 分类：问答
Find nanoparticles

I need some help. I have this sample: which is a piece of plastic with some nanoparticles insi开发者_如何学JAVAde (you can see the small black dots). Can someone help me figure out a quick and dir[详细]

2023-04-07 09:50 分类：问答
RK4 in 2D gravity simulation probs

In actionscript 3.0, I have two objects (a central red star and a orbiting blue planet). I want to use RK4 to plot the orbit. I\'m running the simulation once per frame, and drawing once per frame. I[详细]

2023-04-06 17:59 分类：问答
What is a good way to simulate particle movement?

I am trying to simulate the following: 10 balls that are moving in an area of fixed dimensions Whenever two or more balls come into a proximity range of say 40m, I want an event[详细]

2023-04-05 21:09 分类：问答
Collision response between two 2d circles

I am trying to write a sim in which two circles will collide and then bounce apart in an 开发者_Python百科elastic collision.Each circle has a position, velocity, mass, and radius.I already have the co[详细]

2023-04-05 07:20 分类：问答
Space Physics for missiles, spaceships - Learning Calculus edition

Supposing we have Missile A, with a position vector and velocity magnitude (ignoring acceleration, as many games do) and Spaceship B, with position and velocity vectors. Now,开发者_运维技巧 this missi[详细]

2023-04-05 01:36 分类：问答