Top "Collision-detection" questions

Collision detection is the problem of determining if geometric objects intersect.

Why does not my particle system collision work?

I have added a particle system where I have checked the collider option and added a world particle collider. See …

unity3d collision-detection particle-system
Collisions between game objects and the floor with regards to gravity?

How do games with gravity handle the relationship between moving things like players, monsters, or objects and the floor? Is …

collision-detection gravity
Detect collision of two UIView's in swift

I have two UIViews on my ViewController. I added panGesture to first view and when i start moving this view …

ios collision-detection uipangesturerecognizer
Method to detect intersection between a rectangle and a polygon?

What is the best method to detect whether the red rectangle overlaps the black polygon? Please refer to this image:

algorithm math collision-detection
2D collision between a moving circle and a fixed line segment

In the context of a game program, I have a moving circle and a fixed line segment. The segment can …

algorithm 2d collision-detection
OpenGL Vertex buffer object, can I access the vertex data for other uses such as collision detection?

I'm currently using the GLTools classes that come along with the Superbible 5th edition. I'm looking in the GLTriangleBatch class …

opengl collision-detection vertex vertex-buffer vertex-array
Efficient algorithm for collisions in 2D game?

I'm programming a Bomberman in Java following a tutorial (this is my first game). The tutorial suggests the following code …

java 2d collision-detection memory-efficient
RigidBody2D freeze X position

I'm wondering if there is a way to emulate the following line of code using Unity's RigidBody2D as opposed …

c# unity3d collision-detection rigid-bodies
Good Object Oriented Class Design for collision detection in game development

I want to learn how to create good object-oriented (OO) design practice for collision between two objects situation in game …

oop collision-detection
How can I randomly place several non-colliding rects?

I'm working on some 2D games with Pygame. I need to place several objects at the same time randomly without …

python collision-detection pygame rect