1
vote
2answers
26 views

C# - Collision Detection problem with platforms on Monogame(XNA)

So I am having issues with my platformer that I am developing. I can detect collisions fine when there are a line of parralel blocks or even single blocks. The issue I have is when blocks form an L ...
1
vote
2answers
96 views

Simple square hit the wall and turn around without stopping

I am coding and making my very first plat former game in Unity 4.5 2D. Basically I want my character to ping pong between two walls. I have set up a GroundCheck and CeilingCheck. I was thinking to ...
0
votes
1answer
41 views

Continous collision happening in Unity2d

I am working on Unity2d. I have a game object called gameobject1 on screen. It holds an image (named "state"). When I drag a tree on a gameobject1 collision is happening continuosly in the same layer ...
0
votes
1answer
81 views

How should I detect collisions with objects on a “timeline”?

I'd like to replicate this game's mechanic of the player smashing walls with a precise timing to a background rhythm. How should I check when each wall should be broken? Does the player animation use ...
2
votes
2answers
136 views

Pathplanning A* Getting stuck in wall

I'm having a problem with my pathplanning. I can plan a path and make my character follow it, that's not a problem but then i plan a path around a wall it takes the shortest way as A* suggests, which ...
1
vote
1answer
90 views

Trigger for Melee-attack not working

I'm currently trying to add a melee-slash attack to my Sidescroller. For that I decided to to have an invisible box-colliders infront of my character. My idea is to activate it when the attack-key is ...
1
vote
3answers
111 views

Removing something on Collision?

I have my collision detection code working so how would I tell my HealthPickup to disappear when my Player collides with it? I haven't played around with it yet but I think I may have to somehow ...
0
votes
1answer
81 views

Can't get the logic behind my AABB collision

This is my collision detection function in the maze game im working at. I never made a game before and I dont have that much programming experience. The question I keep asking me continously is why ...
0
votes
1answer
145 views

How to solve the overlap of two circles that collide

I have two circles , one of the circles is static the other is moving around. I have a method that checks whether the two circles collide. How to make the two circles don't overlap when colliding? ...
0
votes
0answers
47 views

Trying to get an object to move back and forth on collision between two collidable objects

Im trying to get a box object to hit a collidable wall on the right and when it hits it move left and hit the left wall and switch back and so on and so forth. Im having trouble with this because ...
1
vote
0answers
51 views

Setting up 3d Collision for Primitive shapes

Im having some trouble understanding how to set up collision detection between my first person camera and my primitive shapes which are made using the vertex buffer. Do i give my camera a boundingBox ...
0
votes
1answer
76 views

How to retrieve a cube collision by faces

I work for a while on a minecraft game (voxel). I am front a problem for a long time about the collision detection. I want recover the cubes collision from my highlighted black's cube like on the ...
2
votes
2answers
105 views

Sweep collision between two moving spheres?

Say I have a scenario like this: Here I got two spheres (sphere A and B) that moves from on spot to another during a frame. How can I predict where these two collide if they collide at all? In ...
2
votes
1answer
93 views

How to impale and stack targets correctly according to the collider and its coordinate?

I'm making another simple game, a catch game, where a spawning target game object must be captured using a skewer to impale it. Here how: At the start, the falling object (in red) will fall in a ...
0
votes
0answers
75 views

Precalculating timespan of bullet collision on cubic bezier curve circles?

I'm fairly new to game logics, C#/XNA (The language/library of choice) and bezier curves in general, and is stuck in my current project. I'm going to try to explain as thoroughly as I can what the ...
0
votes
1answer
216 views

How does Raycasting work in XNA Farseer and player collision?

Wanting to know how to figure out if player's bottom is colliding with object so that I could allow the player to jump. I was trying to use OnCollision but was referred to ray-casting, I looked ...
0
votes
0answers
94 views

Farseer Player Movement and Collision

I have added a video link for any one who whats to see what the problems are by watching the game. I am trying to create a player movement system and there are small problems that I am running into. ...
0
votes
0answers
128 views

Non-rectangular hitbox methods in XNA

I'm creating a 2D top-down RPG, and many of my buildings/scenery have non-rectangular corners to the textures. Does anyone know a good way to create circular/triangular/polygonal hitboxes, or is too ...
1
vote
1answer
212 views

Player Movement Systems

I am working on a project were in class my group of students help produce a video game. We are creating a 2D platformer and was trying to make a pixel based system collision witch fell through. Now I ...
0
votes
0answers
71 views

Interactions between camera and procedural terrain

QUESTION REWORKED I need to update every frame camera position along a surface with hills and drops. In this picture you can see a particle of the surface terrain (just one triangle) and a sphere ...
1
vote
1answer
204 views

Strange collision behaviour in 2D game even though the collision is very basic [closed]

I have a player ship (cube) and some enemy laser projectiles. When the player ship has position X values greater than 1, collision with the enemy projectiles occur but when it has lower X values, the ...
0
votes
0answers
90 views

Smooth circular collisions with edges/collision boxes [C# + XNA]

So, me and a friend are working on our top-down perspective 2D game, and have come to work on perfecting our collisions. In its current state our player sprite is colliding with walls, but is ...
1
vote
2answers
291 views

2D AABBs and resolving multiple collisions

Okay, so this is a problem I've been trying to figure out for quite some time. Mine is a 2D platformer game with a world made up of (usually) immobile tiles and mobile sprites, both of which use AABBs ...
0
votes
0answers
306 views

NavMesh agents pushing other NavMesh Agents in Unity Pro

Using the NavMesh system in Unity, I created pathing system for my player character as well as the enemy AI. When a group of enemy NavMesh Agents surround my player character, they can be pushed out ...
1
vote
1answer
268 views

Sprite collision with color?

Is this possible? To elaborate, I am making a PacMan offshoot. Essentially it is a "zoomed in" version of the game, but the board is randomly generated. I have 11 .png files each to be used as a ...
1
vote
1answer
48 views

A Sensor’s ContactList Keeps Old / Ignores New Contacts, When That Contact Is still

Okay this is a hard one to explain so I’ll try my best. Basically every time my enemy class updates, it runs a SightCone Sensor Contact List test, so this is every single frame it checks for all the ...
0
votes
1answer
98 views

How to loop through objects in class (XNA)? [closed]

In my game I have an Enemy class, and in that I have a constructor which I use to make Enemy objects. How do I add all Enemy objects to a list or loop through all of them using a foreach loop? I ...
0
votes
1answer
102 views

AABB SAT code detects collision wrongly [closed]

I've been having trouble getting my SAT code working using AABBs, and I've been trying to find a solution but, I'm scratching my head. For some reason, it detects collisions very wrongly, as shown by ...
7
votes
3answers
598 views

Reusable top-down collision class

I've recently picked up monogame and am working on a simple top down game to get me started and learn the basics. I've got the movement and the rotation to follow the mouse sorted out but I'm stuck ...
0
votes
1answer
95 views

Rectangle collision doesn't work on WP 8

Collision detection is not working correctly when my 64x64 pixel block touches a bigger block. The big(rect2big) block measures 128x128 pixel. The falling block should change it's color to black when ...
-1
votes
1answer
702 views

Xna tile map collision

I finally found a tutorial on tile maps and loading them in from a file that I understand (http://circlessuck.blogspot.co.uk/2012/09/xna-tutorial-basic-tile-engine-part-2.html), however the tutorial ...
-1
votes
1answer
227 views

3d Wall sliding collision

I'm working on collision for walls in my game and the way I currently have it I get stuck walking into a wall. I'm trying to make my character slide on the walls but still collide. My character moves ...
2
votes
1answer
207 views

3D movement on an authoritiative server?

I'm developing an MMORPG, using Unity for the client and "standard" C# 4.0 for the authoritative server. The server should check each player's movement and ensure that it does not collide with props ...
1
vote
0answers
278 views

XNA Monogame How to handle tile collision [closed]

I am working on a simple XNA side scrolling game as a learning exercise. It works by creating a level object which creates a matrix of tiles based on a map within a text file. The tiles are then drawn ...
1
vote
3answers
367 views

Preventing tunneling of small, fast objects

I'm making a basic shooter game with my friend and i have encountered a problem. I kind of know solution this but i just cant implement it. This is my first game made with XNA/MonoGame and i'm not too ...
3
votes
1answer
176 views

Why would a Bounding Sphere and BoundingBox not intersect (when they should)?

I have a bounding sphere and a bounding box that should be intersecting, however, Intersects(...) is returning false. For example, the following returns false: new BoundingSphere(new Vector3(500, ...
3
votes
1answer
114 views

How to determine depth of a pixel perfect collision

I am trying to figure out how to determine the depth of a pixel perfect collision in XNA. I want to know the depth in order to be able to use it in my collision response. At the moment I have the ...
3
votes
1answer
144 views

How do you get the collision plane when using AABBs? [duplicate]

My collision detection initially seemed to work well enough, but my answer to this question shows that I have went with SAT testing now instead. My goal was to find the plane at which to slide the ...
0
votes
2answers
464 views

C# XNA AABB vs AABB collision resolution, AABBs ghost through each other

I've been learning a bit of collision resolution through a tutorial here and I can't seem to get the AABBvsAABB resolution working, I have CirclevsCircle and AABBvsCircle resolution working with the ...
4
votes
3answers
224 views

XNA Collision is quircky/wobbly, how to improve?

I am sorry if this was already answered but I couldn't find the answer. So I am doing a tile based platformer and when I was making collision I had quiet a struggle I looked here and googled for ...
1
vote
1answer
136 views

Rectangle collision is not working correctly [closed]

I have difficulties with the rectangle collision. My character can go through the right side and through the bottom of each platform rectangle. I guess their is a mathematical problem with the ...
1
vote
1answer
168 views

Recommended collision response needed [closed]

In my game, I have Player class Enemy class Wall class GameComponents class ( Which is the base class for Player, Enemy and Wall) The rules are Enemy chase Player, if collided with Walls, ...
-1
votes
2answers
134 views

Jittery effects with collisions [closed]

I have been having some problems with my coding lately. I am trying to create a platform-based game and I have been having some troubles. A friend of mine said that some update functions are out of ...
3
votes
2answers
375 views

Collision Detection - Slide Around Sprite

I'm creating an RPG using XNA/C# and am trying to add some complicated collision detection code. I have the playable character 'Wizard' and when it collides with something, a method gets called in his ...
2
votes
3answers
897 views

How should I calculate the new angle/direction of my ball hitting a wall? [duplicate]

I'm building a Pong game and I am stuck at how the ball should bounce when hitting a horizontal wall. I tried a few methods but none seems to work. So far I have an update method, which is called ...
1
vote
1answer
385 views

I'm having trouble with collision detection in XNA [closed]

I've written a tile editor and game in XNA, with velocities and gravity, and am having trouble with some of my collision detection things. It works okay, but seems to glitch between just inside and ...
-2
votes
1answer
98 views

Help me debug my 3-d collision code [closed]

I have been havaing a problem doing 3-d collision in a game i have been trying to make for several weeks now. What i am trying to do is prevent a PlayerModel object from colliding with Obstacle(cube) ...
0
votes
1answer
584 views

Creating A Bounding Box around each item in a list XNA 4.0

I have asked a similar question before except i am more experienced and have more understanding of XNA. I have bullets that shoot whenever you press RightTrigger. I am having trouble though creating ...
5
votes
2answers
264 views

How can I normalize a vector if I am handling movment of each axis seperatley?

I am writing a 2D tile based game engine in XNA, and I've recently fine-tuned my collision detection using the answers provided here and more specifically here. The tile based collision detection now ...
2
votes
2answers
443 views

3D Collision Detection with XNA

So I'm trying to implement some collision detection in XNA. I'm aware of the Bounding Spheres, but I worry with the accuracy, most items in my game are cubic in nature, so it seems very square-peg in ...