collision

问题 I'm making a 2D game in SFML and I'm trying to figure out how to collide with tiles in a tilemap. I've written some code but the problem is that I get stuck in the tile I'm colliding with as you can see in the picture below. I cannot move in any direction and around 5 pixels of the player is in the wall. This is my collision / movement code void Player::update(float delta, std::vector<Tile>& tiles) { canMove = true; for (int i = 0; i < tiles.size(); i++) { if (Collision::PixelPerfectTest

问题 I am working through an iOS swift Tetris tutorial* and have it completed and working. But I am puzzled about one particular aspect - the Hashable protocol. The function: class Block: Hashable, Printable { [...] var hashValue: Int { return self.column ^ self.row } Rows go 0..9, and Columns 0..20. The notes says of this function "We return the exclusive-or of our row and column properties to generate a unique integer for each Block.". But my understanding is that 0^1 would be the same as 1^0,

问题 I have two different modules. Now I need to add different authentication mechanism for both modules. So I added event code first module's Module.php's onBootstrap method $listener = $serviceManager->get('First\Service\AuthListener'); $listener->setAdapter($serviceManager->get('First\Service\BasicAuthAdapter')); $eventManager->attach(MvcEvent::EVENT_ROUTE, $listener, 0); and in second module's Module.php's onBootstrap method $listener = $serviceManager->get('Second\Service\AuthListener');

问题 I'm working on a simple game and I'm trying to simplify part of the 2D collision reaction in the game. When certain objects hit walls, I'm calculating a collision normal ( collisionPoint - objectCenter ) and reflecting based on that normal. I'm interested in rounding that normal vector to its nearest 15° but I'm not sure of a good way to go about that. My current thought is doing something like this float angle = atan2(normal.Y, normal.X) * Rad2Deg; float newAngle = ((int)(angle + 7.5f) / 15)

问题 I am a newbie at Java, but decided to make a application that has a bunch of balls bouncing around. Please keep in mind that I know almost nothing about normals, which I have seen mentioned a lot in this kind of thread. I have also only take Algebra 1, and know a little bit of trig (sin, cosin and tangent). Anyways... I have collision detection covered, using if (java.awt.geom.Point2D.distance(X1, Y1, X2, Y2) < ball1.radius + ball2.radius) {return true;} else {return false;} and if (ball.x +

问题 I've tried for several days and spent hours searching the web to no avail. I'm having trouble with collision, i can detect the collision but my problem is preventing the player from entering the tile. I've tried all i can think of. I'm detecting the collision of my tilemap using 1 for solid and 0 for passive for(int i = 0; i < tiles.size(); i++) { if(colMap[tiles[i].y][tiles[i].x] == 1) { myrect.setFillColor(sf::Color::Red); collide = true; break; } else { collide = false; break; } } This

问题 I have a deforming triangle, whose vertices all move between t0 and t1. I am shooting a ray toward the triangle. The ray doesn't hit the triangle at t0 or t1, but somewhere within that interval of time. How do I calculate the exact point of intersection for the ray, and at what time (between t0 and t1) that the ray hits the triangle? Here's an image that hopefully helps illustrate the question better: 来源： https://stackoverflow.com/questions/43771759/how-to-determine-point-time-of-intersection

问题 I have to make a game with Windows Forms for school. My game consists of a user having to get through a maze. I'm trying to prevent my user from going straight through the walls using collision detection, but am getting stuck because of the varying shape of the rectangles being used to represent walls. Here's an image of the game. This question may be similar to this one, however with my movement I believe that it is quite different, as I don't have a grid system or graphical map laid out. As

问题 I have a git repository with two branches; one for code that's used for manufacturing/test and one that's the actual production firmware (they're nearly identical). It's now time to cut a release to send to the manufacturer, so I naturally want to put down some appropriate tags on both branches. But, it seems that git won't let me put the same tag name on both branches. If I try to tag the branches individually it tells me the tag already exists when I go to tag the seconds branch. I tried

问题 I've got a question about libGDX collision detection. Because it's a rather specific question I have not found any good solution on the internet yet. So, I already created "humans" that consist of different body parts, each with rectangle-shaped collision detection. Now I want to implement weapons and skills, which for example look like this: Skill example image Problem Working with rectangles in collision detections would be really frustrating for players when there are skills like this: