The rectangle tag has no wiki summary.
0
votes
2answers
30 views
How to find the total bounds rectangle around a list of rectagles
Rectangle object: a simple data structure of 4 floats (w,h,x,y).
I have an array of 2 or more rectangles and want to create a rectangle that surrounds all of them:
The result rectangle, calculated ...
3
votes
2answers
462 views
How can I tell what a rectangle intersects with?
I understand XNA's Rectangle class is rather limited, but surely there is a way to tell what a Rectangle is intersecting with?
If I had Rectangle boundingBox = new Rectangle(stuff here); how would I ...
0
votes
1answer
45 views
How can I determine if an object hit the top of a tile rectangle in MonoGame? [duplicate]
I've been implementing an AI system in my 2D game using MonoGame.
In some situations when a collision between two objects occurs, I need the NPC to move in different directions depending on the ...
0
votes
1answer
77 views
2D Rectangle Collision
I want to make a small 2D game.
In the game you can go in all directions(with the bird's-eye view) and can shoot.
(A little bit like BoxHead http://de.y8.com/games/box_head_2play)
My problem there is ...
1
vote
1answer
187 views
Get screen bounds of 3D object
I'm trying to draw a 2D plane that has minimum dimensions to contain a 3D model (a sphere). How do I calculate the minimum size and position of the rectangle to completely cover a 3D model on screen?
2
votes
2answers
111 views
Intersection of a point and rectangle
I have a mouse cordinates in 2D game (x and y) and a rectangle (x,y, width,height).
How to find if the point is in the rectangle? I do not have any code to post here. I'm just searching for help.
0
votes
2answers
172 views
How to properly translate a point by a matrix?
I wrote a simple Matrix class and it has methods like rotate, translate, etc. They all seem to be working, but whenever I try to translate a rectangle using the matrix, the translation axis seem to be ...
2
votes
1answer
142 views
Getting a uint color array from a portion of a Texture2D
I'm currently using the Farseer tools to create a body from a Texture2D. However, my texture is a spritesheet and I need to get the uint array containing the colors from a portion of the full ...
1
vote
2answers
354 views
Find the Contact Normal of Rectangle Collision
It seems a lot of people have asked similar questions on this site, and every time it seems like a whole bunch of answers that don't work are given.
Basically, I have two rectangles (AABBs) that ...
2
votes
3answers
705 views
Creating Rectangle-based buttons with OnClick events
As the title implies, I want a Button class with an OnClick event handler. It should fire off connected events when it is clicked.
This is as far as I've made it:
public class Button {
public ...
-4
votes
1answer
130 views
Can't add rectangles into rectangle list [closed]
When i run this code, it gives me "Object reference not set to an instance of an object."
here
clickableArea.Add(temp);
here is the entire class
using System;
using System.Collections.Generic;
...
0
votes
2answers
168 views
Draw Rectangle To All Dimensions of Image
I have some rudimentary collision code:
public class Collision {
static boolean isColliding = false;
static Rectangle player;
static Rectangle female;
public static void collision(){
Rectangle ...
2
votes
1answer
223 views
Reacting to rectangle on rectangle collisions
I don't know how to react to collisions between two axis aligned rectangles that have x, y, width and height values (x and y are from the centre of the box) to make them simply not overlap.
I figured ...
2
votes
2answers
6k views
a simple 2D rectangle collision algorithm that also determines which sides that the rectangles collide?
I initially tried out implementing rectangular intersection, which works well. However, when I have to apply the physics system, such as velocity, acceleration, and directional vectors, I would have ...
-1
votes
1answer
157 views
Find a Rectangle by coordinates - XNA
I have 2 coordinates (X,Y). I have also a 10x10 array. By these coordinates I have to find the rectangle in which is my pointer at the moment.
How could I handle it?
-2
votes
2answers
178 views
C# XNA 4.0 Rectangle Rotation Collision
I can easily rotate my sprite, but how could I rotate my rectangle for my collision (Thinking of using the Separating Axis Theorem, But I have no clue how to apply it) Help or Example would be ...
4
votes
1answer
168 views
XNA4 - Trouble updating part of a Texture2D
I have a big Color[] ColorMap in memory (1280x720), and I have a Texture2D that I've uploaded this ColorMap to.
I update parts of the in-memory ColorMap, and want to upload those changed parts to the ...
0
votes
2answers
2k views
Android Java rectangle collision detection not working
I had been hard coding a collision detection system which was buggy. Then I came across using rectangles for collsion detection. So I put it all in and it does not work, I put a log in and it never ...
3
votes
1answer
1k views
Create a rectangle struct to be rotated and have a .Intersects() function
In my XNA program, I am trying to swing a sword. The sword starts at an angle of 180 degrees, then rotates (clockwise) to an angle of 90 degrees.
The Rectangle struct that XNA provides,
Rectangle ...
6
votes
1answer
864 views
XNA Platformer Collision: PerPixel vs Rectangle
I'm writing a platformer engine with XNA and was wondering what method for handling collisions I should use. Would I be seeing some performance issues if I were to try and have PerPixel collisions? ...
5
votes
4answers
1k views
Find the closest point along a rectangle, given an another point and direction
Given a rectangle, and a point with a vector direction towards the rectangle.
How can I find the closest point on the outside of that rectangle to the point in question?
