collision-detection

问题 Anyone know how to check for collision between certain divs? At the moment I'm using getBoundingClientRect() , but it checks for every div: if (this.getBoundingClientRect()) { animateContinue = 1; } How would I go about checking specific ones? Using this for loop I can get the IDs of the divs I want to check. for (var x = 1; x <= noOfBoxArt; x++) { console.log('#boxArt'+x); } 回答1: Okay. Ended up using a modified version of this duplicate. The function which does the work is: var overlaps =

问题 I am writing software that extends Circle-Rectangle collision detection (intersection) to include responses to the collision. Circle-edge and circle-rectangle are rather straight-forward. But circle-circle has me stumped. For example, let two circles collide, one red and one green, in a discrete event simulation. We might have the following situation: Immediately after they collide we could have: Here RIP and GIP were the locations of the circles at the previous clock tick. At the current

问题 How can I programmatically detect whether or not two triangles touch each other, given their vertices on a 2D coordinate plane? This includes touching points or edges, as well as if one triangle is completely inside the other one. 回答1: Use Line Line intersection https://www.topcoder.com/community/data-science/data-science-tutorials/geometry-concepts-line-intersection-and-its-applications/#line_line_intersection Also consider the possibility that some vertex might be touching one of the sides

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed last year . I wanted the black box to detect if it is going to collide on the bordered box. If the black box detected a collision it will move around and go to the position clicked by the user. How to do this with jquery? 回答1: You can try jquery-collision. Full disclosure: I just wrote and released this. I also

问题 I'm working on some 2D games with Pygame. I need to place several objects at the same time randomly without them intersecting . I have tried a few obvious methods but they didn't work. Obvious methods follow (in pseudo): create list of objects for object in list: for other object in list: if object collides with other object: create new list of objects That method took forever. Other method I tried: create list of objects for object in list: for other object in list: if object collides with

问题 I have 2 six faced solids. The only guarantee is that they each have 8 vertex3f's (verticies with x,y and z components). Given this, how can I find out if these are colliding? 回答1: It seems I'm too dumb to quit. Consider this. If any edge of solid 1 intersects any face of solid 2, you have a collision. That's not quite comprehensive because there are case when one is is fully contained in the other, which you can test by determining if the center of either is contained in the other. Checking

问题 I am learning kineticjs through tutorials provided at http://www.html5canvastutorials.com, things are good and easy to understand but, I am having issue in understanding the getIntersection function that i want to use among different objects while dragging to detect collision / overlapping objects. As far as I have understood the example the getIntersection function expects a position and checks if its intersecting with any other object or not.. Though I got them but with some issues. I am

问题 Ok so I am working on a game on Android. I need to implement pixel perfect collision detection. I already have the bounding boxes set up around each of the images, each bounding box is transformed to match the current rotation of the image. That all works great. I also have the pixel data from each bitmap stored in an array. Can someone help me figure out the most efficient way to go about detecting if the pixels overlap? Thanks in advance for any help! 回答1: The basic idea is to create a

问题 I thought about writing a new question, because there were too many comments and some other people could not get the proper idea of my doubt. For this, I have posted my GameScene on Git: https://github.com/henriquesv/iOS_Tests/blob/master/GameScene.m Summerizing: This is a game where I have a few pipes connected and some pieces start already inside of them. The user can touch each piece at a time and slide them through the tubes. So, I have to be able to move each piece with a finger. The

问题 I'm using plane geometries as walls in a game. I'm using ray caster to provide the player from moving through them. The problem is that planes only works one way. When the player comes from the "front" side it works but when it comes from behind it moves through. Cube and sphere geometries works from any directions so my ray caster function seems to do the job. I have set material to be double sided but it doesn't help. Does any one know about this issue? How can I make the plane using both