Box2d world width and height ratio with screen width and height

Posted by Sujith on Game Development See other posts from Game Development or by Sujith
Published on 2014-03-04T10:28:10Z Indexed on 2014/06/03 3:44 UTC
Read the original article Hit count: 252

Filed under:

android

|

jbox2d

I have view, for example GameView which extends SurfaceView . I have integrated Box2D physics in GameView. I have two widths ,

GameView width, height and Box2D physics world width ,height. I need to get the position of box2d world with the GameView co-ordinates.

For example,

Total width of screen = 240 Total height of screen = 320

Screen points needed to be mapped onto box2d co-ordinates (x,y) = 127, 139

For this i need to get the max width and height of the Box2d physics world. Is there is any way to get the max width and height of Box2d world.

or

Can i limit the width and height of box2d world within the screen resolution.

© Game Development or respective owner

Related posts about android

Please verify my layout: bottom button keeps coming up over keyboard

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi everyone, I have a layout which does almost what I want. There's just one bug regarding the button at the bottom. I should stay at the bottom at all times. But whenever I bring up the soft-keyboard the button will be displayed above the keyboard. This is not what I want but it should become covered… >>> More
Android programming. Application stopped unexpectedly.

as seen on Stack Overflow - Search for 'Stack Overflow'
I've just created a prototype of interface for my android app and tried to run it. Unfortunately I get an error that my app has stopped unexpectedly (my reputation doesn't allow me to post images so follow my links): screenshot of error message This is layout mode of editing. Everything looks as… >>> More
Listview Row Overlap Problem

as seen on Stack Overflow - Search for 'Stack Overflow'
I just updated my app and I am getting some odd complaints from people who update it. I am only getting complaints from people with non-stock android phones (phones that manufacturers have modified...HTC phones, cliq, pulse, etc), other phones like the Droid, Nexus work fine. My app (Photo Frame Deluxe)… >>> More
Why are some of my view not aligned correctly at the bottom of my relative layout?

as seen on Stack Overflow - Search for 'Stack Overflow'
I have problems getting some of my views aligned in a relative layout that I use inside a row of my listview. Here is a screenshot from the layout builder in Eclipse, this is what I think it should look like: The next image is from the emulator. Now the TestTestTest View is at the top and covers… >>> More
Android RatingBar weirdness: Whenever I add a RatingBar to my layout, a bunch of the generated tags,

as seen on Stack Overflow - Search for 'Stack Overflow'
Whenever I use a RatingBar view in my layout, I suddenly get all kinds of compile errors. I'm using Android 2.0, but I've also tried 2.0.1, and 2.1, without joy. I also get a message: Shader 'android.graphics.BitmapShader' is not supported in Layout Editor, and an odd warning which may or maynot be… >>> More

Related posts about jbox2d

OutOfBounds Exception when creating a PolygonShape using jbox2d

as seen on Game Development - Search for 'Game Development'
So here's the deal, i'm parsing a file that contains the vertices for a polygon, that i want to create in box2d. I create a new PolygonShape() and then call .set() giving it a defined array of Vec, and that defined array's .length property. I expected this to work, since the documentation for jbox2d… >>> More
JBox2D Polygon Collisions Acting Strange

as seen on Game Development - Search for 'Game Development'
I have been playing around with JBox2D and Slick2D and made a little demo with a ground object, a box object, and two different polygons. The problem I am facing is that the collision-detection for the polygons seems to be off (see picture below), but the box's collision works fine. My Code: Main… >>> More
Using texture() in combination with JBox2D

as seen on Game Development - Search for 'Game Development'
I'm getting some trouble using the texture() method inside beginShape()/endShape() clause. In the display()-method of my class TowerElement (a bar which is DYNAMIC), I draw the object like following: void display(){ Vec2 pos = level.getLevel().getBodyPixelCoord(body); float a = body.getAngle();… >>> More
Which jar has JBox2d's p5 package

as seen on Game Development - Search for 'Game Development'
Using eclipse, I'm trying to write a simple hello world program in processing that simply draws a rectangle on the screen then has gravity drop it as seen in this Tutorial. The problem is that when I try to import the p5 package, it's not resolving so I can't declare my Physics object. I tried… >>> More
2D Polygon Triangulation

as seen on Game Development - Search for 'Game Development'
I am creating a game engine using the JBox2D physics engine. It only allows you to create polygon fixtures up to 8 vertices, To create a body with more than 8 vertices, you need to create multiple fixtures for the body. My question is, How can I split the polygons a user creates into smaller polygons… >>> More