1
vote
1answer
99 views

Libgdx 2D Game, Random generated World of random size, how to get mouse coordinates?

I'm a noob and English is not my mothertongue, so please bear with me! I'm generating a map for a Sidescroller out of a 2D-array. That is, the array holds different values and I create blocks based ...
2
votes
1answer
74 views

Why are my 2D world click-positions offset after camera movement?

I'm writing a 2D game engine. I need to add a camera to my world that can zoom in and out as well as move away from its initial position at (0,0) at the center of the world. The main issue can be ...
1
vote
1answer
150 views

Cartesian Coordinates & Layout [duplicate]

The way cartesian coordinations are presented and used is kinda confusing. When working with 2D the vertical axis is Y, though when working with 3D the vertical axis is Z and Y becomes the "depth" ...
1
vote
1answer
90 views

XNA 3D coordinates seem off

I'm going through a book, and the example it gave me seems like is should work, but when I try and implement it, it falls short. My Camera class takes three vectors in to generate View and Projection ...
13
votes
1answer
426 views

Orthographic unit translation mismatch on grid (e.g. 64 pixels translates incorrectly)

I am looking for some insight into a small problem with unit translations on a grid. Update and Solved I solved my own issue. See below for details. Everything in this part of the post turned out to ...
0
votes
4answers
3k views

XNA spritebatch drawing to the centre of screen

I have bit of a silly problem. Is is possible to use SpriteBatch.Draw() method to draw to the centre of screen using coords from the beginning of window (So resolution 800x600 would use 400;300) ...
4
votes
1answer
1k views

Obtaining a world point from a screen point with an orthographic projection

I assumed this was a straightforward problem but it has been plaguing me for days. I am creating a 2D game with an orthographic camera. I am using a 3D camera rather than just hacking it because I ...
6
votes
3answers
4k views

Why / how does XNA's right-handed coordinate system effect anything if you can specify near/far Z values?

I am told repeatedly that XNA Game Studio uses a right-handed coordinate system, and I understand the difference between a right-handed and left-handed coordinate system. But given that you can use a ...