collision Questions
10
Solved
I'm looking for a hash function that:
Hashes textual strings well (e.g. few collisions)
Is written in Java, and widely used
Bonus: works on several fields (instead of me concatenating them and ap...
8
I uploaded a version of my app – this error pop ups and I dont have any changes from the Google Maps portion of my app. On my first upload, there was no problem.
Me asked 13/4, 2015 at 14:45
2
Solved
I know this may sound stupid, but the pygame documentation on their website says that it is:
x = pygame.Rect(left,top,width,height)
However, in my program, I cannot figure out if that is true, o...
3
Solved
According to the books that i have read, it says that S.H.A(Secure Hash Algorithm) is collision resistant.But if the input space is a 1024 bit number and the output space is a 512 bit message diges...
Drudgery asked 12/3, 2016 at 7:26
5
Solved
Is there a way in pygame to look for a collision between the a particular side of a sprite and a particular side of another sprite in pygame? For example, if the top of sprite A collides with the b...
3
Solved
so I made this way to detect and react to squares moving and touching other squares. It uses Pythagorean theorem to make a third parameter so you don't get two true if statements when squares touch...
Damoiselle asked 7/5, 2021 at 19:26
3
Solved
I am implementing the Gilbert-Johnson-Keerthi algorithm which computes whether two objects are intersecting (ie. colliding).
The entry point to my code is the hasCollided function which takes two ...
Arlyn asked 17/2, 2014 at 1:10
7
Solved
I know there is a minute possibility of a clash but if I generated a batch of 1000 GUIDs (for example), would it be safe to assume they're all unique to save testing each one?
Bonus question
An o...
Scholz asked 4/6, 2010 at 20:30
2
I am making a program that involves elastic ball physics. I have worked out all of the maths for collision against walls and stationary objects, but I cannot figure out what happens when two moving...
6
Solved
This relates to this question. I am using the code below from this answer to generate a UUID in JavaScript:
'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
var r = Math.rando...
Yang asked 2/8, 2011 at 3:22
3
Solved
I'm trying to find a safe way to prevent a cron job collision (ie. prevent it from running if another instance is already running).
Some options I've found recommend using a lock on a file.
Is th...
2
Solved
I'm looking for a Windows equivalent of the GNU tool objcopy. I'm looking to implement the suggestion posted here to my problem, however I need to do it cross-platform (Windows, Linux and Mac). I c...
8
Solved
I have some C++ code that includes a method called CreateDirectory(). Previously the code only used STL and Boost, but I recently had to include <windows.h> so I could look-up CSIDL_LOCAL_APP...
1
So I have this body that is a circle collider
and it has sometimes a big velocity
the problem is that the tiled map of the boundaries is made of small tiles
and at high velocity the body goes th...
4
Solved
Consider the following jfiddle http://jsfiddle.net/bchapman26/9uUBU/29/
//angular.js example for factory vs service
var app = angular.module('myApp', ['module1', 'module2']);
var service1module =...
Whitneywhitson asked 15/11, 2012 at 21:46
3
Solved
I'm aware of how to check if two circles are intersecting one another. However, sometimes the circles move too fast and end up avoiding collision on the next frame.
My current solution to the pro...
Nesline asked 6/7, 2012 at 21:2
4
Solved
I would like to know the best way to tell if a Shape object intersects another shape.
Currently I have collision detection in my game sorted out as long as it involves a Shape intersecting a Rectan...
Flunkey asked 28/3, 2013 at 19:48
2
Solved
I've decided to study some primary documentation in Java. I've started with Object class and I am looking at the equals method. I know that equals is using hashCode method. Although, hashCode retur...
2
I am currently working in an efficient calculation engine for particle simulation both in CPU and GPU. I have been working lately in octrees and I managed to write a working version of octree for p...
Endospore asked 12/7, 2014 at 9:23
7
Solved
I've been working on adding a Quadtree to a program that I'm writing, and I can't help but notice that there are few well explained/performing tutorials for the implementation that I'm lookin...
Mighell asked 30/1, 2017 at 21:50
1
Solved
How to identify whether or not the keys in a std::unordered_map have experienced hash collisions?
That is, how to identify if any collision chaining is present?
Cissoid asked 10/9, 2017 at 6:15
4
Solved
Hash Collision or Hashing Collision in HashMap is not a new topic and I've come across several blogs and discussion boards explaining how to produce Hash Collision or how to avoid it in an ambiguou...
Quote asked 21/8, 2017 at 11:11
1
The problem
I'm looking for feedback on this exploration of a locally unique alternative for GUIDs, with the following requirements:
Has very low chance of collisions (to the point that we'd rat...
Gunny asked 29/5, 2017 at 21:26
3
Solved
One of the most important rules and best practices when writing a library, is putting all symbols of the
library into a library specific namespace. C++ makes this easy, due to the namespace keyword...
3
Solved
I've recently learned a little bit about hash values, and therefore also heard of about the problem of hash collisions.
I therefore wondered: How does one deal with those?
E.g. Swift's Dictonary u...
Kedgeree asked 7/2, 2015 at 7:42
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