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0
votes
1answer
90 views

Designing advanced n-body physics that lead to a stable state [closed]

I'm currently organizing a map with a physics engine that implements a realtime n-body simulation with (somewhat) elastic links. The forces also decrease over time. I've extended it to also work with ...
1
vote
0answers
37 views

Sliding Collision Detection (Java) [migrated]

I need a really specific kind of square collision in my game. In it, if a square entity moves into, say, a vertical wall from the left, the entity is set to the left of the wall, but any vertical ...
0
votes
1answer
47 views

Changing coordinate systems in python

I am working on a visual python program that is meant to model the orbit of an electron around the core of a Hydrogen atom. In order to avoid the singularity at r = 0 in the equation for coulomb ...
1
vote
1answer
30 views

System for deducting velocity against sources pf gravity

Say I have a particle-based physics engine (which I do) that uses lots of particles with a x and y coordinate and velocity. These particles can also have a mass, which means that these particles (with ...
0
votes
1answer
60 views

Convert x and y velocity to x and y velocity relative to another point

The question I asked probably isn't very clear, so I'll explain. If I have an x and y velocity, where the y goes towards the bottom of the screen, and the x goes towards the right of the screen, how ...
4
votes
1answer
99 views

How to define the motion path of one object on a surface of the other one?

I have an uncommon problem. There are 2 3D objects, which are represented by arrays of vertices and triangles (.stl files). Each of them contains a big enough amount of vertices: 1-10 mln ones. The ...
-3
votes
1answer
417 views

Physics Engine with Fixed-Point Positions [closed]

Fixed-point object locations allow for worlds which are much more scale-able. Using a 64-bit integer (per dimension), and 0.1 millimeter precision, a world can be created which is 100% numerically ...
15
votes
12answers
2k views

Teaching myself, as a physicist, to become a better programmer [closed]

I've always liked physics, and I've always liked coding, so when I got the offer for a PhD position doing numerical physics (details are not relevant, it's mostly parallel programming for a cluster) ...
1
vote
1answer
226 views

Help me understand this “mindmap / constellation” visual pattern

Please help me identify and understand this visual pattern, what's the common name used for such mindmap / constellation visualisations? http://asterisq.com/products/constellation/roamer/demo ...
3
votes
4answers
4k views

confusion between these two networking terms: transmission rate vs. propagation speed [closed]

I read this in TCP/IP PROTOCOL SUITE second edition, written by Behrouz A. Forouzan and Sophia Chung Fegan. In traditional Ethernet, the minimum frame length is 520 bits, the transmission rate is ...
13
votes
5answers
532 views

Idea for a physics–computer science joint curriculum and textbook [closed]

I want to write (and have starting outlining) a physics textbook which assumes its reader is a competent computer programmer. Normal physics textbooks teach physical formulas and give problems that ...
6
votes
2answers
2k views

Is video game programming usually physics related?

I know this is obviously not true for some games, minesweeper, card games, etc. But what about any game involving simulating the real world environment. Obviously these games have some form of a ...