collision-detection

问题 I have made a very simple 2D Java game class made up of the general 2D game methods such as render and update, I have set up all my if statements so that the player moves around the map with the keyboard arrow input. I am now trying to set up what I have read is a collision detection, I know the basics of what I need to do because I did a lot of reading before I actually came here to ask the question, from what I have read it goes something like this: Make 2 rectangles Rectangle rectOne = new

问题 I am making a game with Pygame. For this game I need to be able to detect not only that two rectangles have collided, but also the point of collision between them. I looked at the documentation but couldn't seem to find any answers. Is something like this possible? 回答1: You can use Rect.clip: crops a rectangle inside another clip(Rect) -> Rect Returns a new rectangle that is cropped to be completely inside the argument Rect. If the two rectangles do not overlap to begin with, a Rect with 0

问题 I would like your suggestion about this problem... To make it simple, I'll consider only the x axis. Image an object in position 10, and its width also 10 units, which is moving forward 100 units per second, and due to low frame, on each update it should move 80 units. After the first update is called, its position is now 90 and there is another object of the same size in position 120. The next update, will move the object to position 170. Considering that I need to implement collision

问题 I am making a game in java which involves characters moving around a map and having some solid collision objects (i.e. buildings) placed around the map by reading certain data from a text file. There will be multiple maps where these objects' locations will change. My question is would painting a rectangle in a certain color that indicates collision behind such structures or would reading mouse coordinates and searching an array of these structures to see if that point lies on a building,

问题 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? 回答1: 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 =

问题 I'm having an issue with some collisions. I have two objects equal size and mass. When one collides into another that is at rest I get the correct behavior (grey area in image). When I have two objects that are next to each other the behavior isn't quite right. Spritekit result on the left. Expected/needed result on right. I think I know what is going on, but not sure what to do about it. If the object was one object with twice the mass then the spritekit behavior would be correct, but they

问题 I've been working on an iOS project, using Cocos2D 1.0 and Box2D, and I've run into a bit of a problem. What I need to be able to do is determine the orientation of a surface my player has hit. For example, if we have a rectangular platform, and the player collides with it, I need to know whether the player has hit the left, right, top, or bottom face of it. ALL the objects in the game are square, and the ONLY one moving is the player. I'm currently using a b2ContactListener in Box2D (well,

问题 I'm working on a small platformer game in which you place blocks to make a level, then play it. I got gravity, jumping, and left and right movement.. but I am not sure how to make the player collide with walls when moving left or right. The way I want it to work is like this- if key[K_LEFT]: if not block to the left: move to the left How would I go about doing this (relative to this source): import pygame,random from pygame.locals import * import itertools pygame.init() screen=pygame.display

问题 I'm new to libGDX and from what I can tell the Intersector class has overlap methods for Rectangle/Rectangle, Circle/Circle, Circle/Rectangle, and Polygon/Polygon, but for some reason it doesn't seem to have any methods for checking Polygon/Rectangle or Polygon/Circle. Is there a recommended way to check for collision between polygon and rect/circle? Also, is there some reason why this has been left out of the Intersector class? (ie, should I avoid it? If so, what's the recommended

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . I need physics engine to simulate game world on server. I googled for .Net physics engines and they all were released in 2006-2009. So