collision-detection | 易学教程

Collision detection tutorials [closed]

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Closed. This question is off-topic . It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I'm supposed to develop a Java game using AWT. I'm stuck with the concept of "collision detection". If you can help me with any tutorials that explain the concept (how it works) or give examples (source code), I'd be grateful. ins0m A strong tutorial on 2d collision detection can be found at metanetsoftware (makes of N) The authors write about the theoretical fundamentals and the challenges. They give you some

Nodes in a Scene from different layers will not interact

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问题 Apologies in advance as this Question involves allot of code. I have a GameScene with multiple layers holding Nodes/SpriteNodes for HUD/Scores/ etc. One layer, LayerProjectile, holds a Weapon Entity. Said Entity has both Sprite and Physics Components. Problem is the Projectile nodes in the LayerProjectile do not interact with nodes in the main layer (worldLayer), of the GameScene. All physics bodies are dynamic, and the GameScene has its PhysicWorldDelgate class GamePlayMode: SGScene,

C# simple 3D Collision detection

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问题 I'm trying to develop a simple 3d environment (in openTK, so basically openGL) and implement simple collision detection. I will have the camera object which will have a bounding cube and a world full of triangles and quads. If I'm given a bounding cube (or bounding sphere if that's easier) and a list of polygons, is there a quick and dirty way to do basic collision detection? Thanks for any help 回答1: Ok, for simple bounding box collision, I wrote the following method that will accept a

Sceneform Collisions With Camera

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I'm stretching my very limited ARCore knowledge. My question is similar (but different) to this question I want to work out if my device camera node intersects/overlaps with my other nodes, but I've not been having any luck so far I'm trying something like this (the camera is another node): scene.setOnUpdateListener(frameTime -> { Node x = scene.overlapTest(scene.getCamera()); if (x != null) { Log.i(TAG, "setUpArComponents: CAMERA HIT DETECTED at: " + x.getName()); logNodeStatus(x); } }); Firstly, does this make sense? I can detect all node collisions in my scene using: for (Node node : nodes)

Collision detection between a BoundingBox and a Sphere in libgdx

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In my libgdx game I have 3D BoundingBoxes and Spheres for map and player objects. I want to calculate whether they collide with each other in order to properly simulate the motion of these objects. What method can I use to calculate whether these objects collide/intersect? You can use the following method: public static boolean intersectsWith(BoundingBox boundingBox, Sphere sphere) { float dmin = 0; Vector3 center = sphere.center; Vector3 bmin = boundingBox.getMin(); Vector3 bmax = boundingBox.getMax(); if (center.x < bmin.x) { dmin += Math.pow(center.x - bmin.x, 2); } else if (center.x > bmax

Collision detection between ball & bricks in brick breaker game [closed]

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Closed . This question needs to be more focused . It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post . Closed 3 years ago . How do you detect a collision between ball & bricks in a brick breaker game? Bounding Box Collision That should get you started, and give you some terms to search for. Essentially you treat each brick as a bounding box. Based on the ball position you should be able to determine if the ball collides, this is based on the fact you treat the ball as a simple bounding box, with a set

jquery .animate() collision detection

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I'm using animate to move a div within a grid of divs. As a test I am setting some of the grid divs as obstacles. If the animated div collides with one of the obstacles I want to end the animation. A plug in is fine or a snippet of code. I kind of suspect I am sniffing up the wrong tree with .animate() so any shove in the right direction or improvement on what I am doing is appreciated: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html lang="en"> <head> <meta charset="utf-8"> <title>Game Test</title> <!-- meta tags -

Efficient algorithm for collisions in 2D game?

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问题 I'm programming a Bomberman in Java following a tutorial (this is my first game). The tutorial suggests the following code for detecting collisions. for (int p=0; p<entities.size(); p++) { for (int s=p+1; s<entities.size(); s++) { Entity me = (Entity) entities.get(p); Entity him = (Entity) entities.get(s); if (me.collidesWith(him)) { me.collidedWith(him); him.collidedWith(me); } } By now, entities is an array list containing the enemies and the player. As I want to also detect the player

How to prevent draggable child elements from dragging over each other?

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How to prevent draggable child elements from dragging over each other in absolute position? Something like: if( ($("#firstChild").position().left) >= ($("#secondChild").position().left) ) { $(this).draggable({ disabled: true }); } but this only disables dragabble when stop dragging, the goal is to prevent from overdragging in some way...Or with Droppable??? Any ideas for CASE 2? EDIT: Also, this is maximum for child1 towards child2 , so no overlap occurs , but child1 can push child2 on right, and child2 can push child1 on left, important thing is that no overlap ocurrs! Some notes before / in

How do I detect collision detection in flash AS3?

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I wanted to create a maze in flash AS3, with the user guiding the character. I tried using this (below) but this will require me to make all the maze walls individual and setting collision detection to each one. Is there an easier way of accomplishing the same thing? monkey.addEventListener( Event.ENTER_FRAME, handleCollision) function handleCollision( e:Event ):void { if(monkey.hitTestObject(wall)) { trace("HIT"); } else { trace("MISS"); } } You can use the Collision Detection Kit : https://code.google.com/p/collisiondetectionkit/ prototypical One way you could do this, is to use hitTestPoint