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Questions tagged [collision]

In collision detection problems, the challenge is to determine when shapes intersect each other.

32 votes
3 answers
44k views

Overlapping rectangles

I received the following question in a technical interview today (for a devops/SRE position): Write a function which returns true if the two rectangles passed to it as arguments would overlap if ...
Jim Dennis's user avatar
17 votes
1 answer
4k views

Bouncing stacking boxes

I'm not sure if it would be better to make the envelope into an extension of the Rectangle constructor. The physics seem a bit dodgy, it works well most of the time, but sometimes the boxes overlap ...
Tom's user avatar
  • 431
16 votes
3 answers
7k views

2D Collision Detection in C++

I'm attempting to rewrite the classic snake game in c++. What I am inquiring about is my implementation for a 2D collision detection function. I am utilizing ...
Linny's user avatar
  • 10.3k
15 votes
3 answers
836 views

Setting the scene for a role-playing game

I made some games in Pygame, but I am still new to making games. I made this RPG game, and this code is just a part of the game. The game executes different Pygame files for different levels of the ...
Michael's user avatar
  • 159
13 votes
2 answers
10k views

2D Collision Detection

I wrote this a while ago but wanted to see if I went about it the right way and if my brain is working correctly. I was thinking about these two projects the other day and I recently released the ...
Tyler C's user avatar
  • 325
11 votes
3 answers
2k views

2D tilemap collision method

Is this the optimal method to check for collisions in a 2d-based game? I put together a working demo of 2D collisions here (WSAD to move, orange blocks collide). I currently use the following code ...
Oliver Barnwell's user avatar
11 votes
1 answer
359 views

Basketball Collisions with Box2d

I'm working on a new prototype that is a simple drag and shoot arcade basketball game. For this project I am working with LibGDX and the Box2d physics library. You can play the game here: Play ...
bazola's user avatar
  • 8,569
11 votes
1 answer
586 views

Bounding volume hierarchy

I'm building a bounding volume hierarchy in Golang. I can tell my code works because I did some test on it and it gives the same results as the brute force implementation (brute force is to test all ...
user avatar
11 votes
1 answer
539 views

Battle City (Tank) replica

I'm learning JS and Canvas. A friend of mine gave me the task to create a Battle City replica. I've already managed to make the map and the player to move. Nothing fancy just some squares with a color,...
Frakcool's user avatar
  • 181
10 votes
2 answers
1k views

Design of physics with Collision Detection using SFML

I found out that in Visual Studio 2012, it is possible to create project of SFML easily with a template. I am not an experienced C# programmer. Hence I wanted to implement a physics component just for ...
Vemulo's user avatar
  • 223
10 votes
2 answers
365 views

Artifact collision in plane module

Here's something I tried putting together as I'm learning. Critiques on anything are welcome. There's also a logic bug in the Plane module I can't identify. The long and the short are that it takes ...
Jimmy Hoffa's user avatar
  • 1,545
10 votes
2 answers
584 views

Finding the nearest polygon

Finding the nearest polygon out of a list of polygons seems to be quite a challenge on performance, due to lack of optimization. Consider the following image: I'll give the concept behind this. The "...
FatalSleep's user avatar
9 votes
3 answers
2k views

Performance of collision detection in a grid

I have fairly simple collision checking and handling Python code which is currently bottlenecking my performance quite a bit. I haven't done too much coding in python and I'm quite sure there's ...
warbaque's user avatar
  • 261
9 votes
1 answer
13k views

Line segment to circle collision algorithm

I've written a function (in Python 3) which computes if a line segment (constraint) and a circle (body) collide, and returns the point of intersection (closest point to the centre of the circle): <...
Tochi Obudulu's user avatar
9 votes
3 answers
968 views

Canvas Drawing/Animation

I am trying to learn how to write good, clean, and efficient JavaScript. I consider myself a novice, at best, in JavaScript. Any comments are appreciated. In an effort to become a better JavaScript ...
whall's user avatar
  • 91

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