XNA Game Studio 4.0 is a programming environment that allows you to use Visual Studio to create games for Windows Phone, the Xbox 360 console, and Windows-based computers.
40
votes
3answers
7k views
Optimizing an XNA 2D game
Does it make sense to implement the logic to skip rendering objects outside the viewport or should I not care about it and let the Framework do it?
2
votes
2answers
2k views
Loading and unloading “chunks” of tiles in a 2d tile engine with 2d camera
I am making a 2d tile based game in C# and XNA 4.0. I am having trouble loading and unloading "chunks" of tiles(blocks). The whole world is randomly generated and is infinate on both axis. How would I ...
30
votes
7answers
10k views
How'd they do it: Millions of tiles in Terraria
I've been working up a game engine similar to Terraria, mostly as a challenge, and while I've figured out most of it, I can't really seem to wrap my head around how they handle the millions of ...
12
votes
1answer
2k views
Disposing only certain resources in XNA?
The ContentManager in XNA 4.0 only has one Unload() method that Unloads all Assets.
I want to have some "global" Assets that are always loaded, but then I want per-Level Assets which should be ...
5
votes
1answer
2k views
Sidescroller variable terrain heightmap for walking/collision
I've been fooling around with moving on sloped tiles in XNA and it is semi-working but not completely satisfactory. I also have been thinking that having sets of predetermined slopes might not give me ...
7
votes
2answers
4k views
How do I disable texture filtering for sprite scaling in XNA 4.0?
I have a sprite that I'm trying to scale up in XNA, but XNA is applying some sort of texture filtering that smooths it and makes it look ugly. I'd like it to just do pixel doubling instead of ...
6
votes
1answer
439 views
How To Approach 360 Degree Snake
I've recently gotten into XNA and must say I love it. As sort of a hello world game I decided to create the classic game "Snake". The 90 degree version was very simple and easy to implement. But as I ...
3
votes
2answers
946 views
Depth buffer and render target
When I use this RenderTarget:
renderTarget = new RenderTarget2D(GraphicsDevice, GraphicsDevice.Viewport.Width,
GraphicsDevice.Viewport.Height, false, SurfaceFormat.Color, DepthFormat.Depth24);
...
2
votes
3answers
2k views
How to make multiple levels game in XNA game studio 4.0?
I am doing 2D game using XNA framework 4.0. I'd like the game to have multiple levels. Where do I store the levels and how do I implement a scoring system for the game? Can I use XML for storing data ...
2
votes
1answer
250 views
How to access the nth element in a 2d texture from a pixel shader in XNA
How can I access the nth element in a texture2d from a pixel shader? For example if I wanted to get the 5th vector4 from 10 x 10 texture2d
1
vote
1answer
119 views
Pixel Shader - apply a mask (XNA)
I'd like to apply a simple few masks to few images.
The first mask I'd like to implement is mask like:
XXXOOO
I mean, that on the right everything is masked (to black), and on the left everything ...
1
vote
3answers
2k views
Alpha blending not rendering properly XNA 4.0
I'm trying to render a tree made out of 2 rectangles intersecting in the center at a 90degree angle. The texture has an alpha channel but which ever rectangle gets rendered second causes a weird ...
13
votes
2answers
3k views
Creating an electricity/lighting/tesla coil effect in a 2D XNA game?
I'd like to create beams of electricity between two points very similar to this video: http://www.youtube.com/watch?v=eMJ8-56L3Lc. The effect is so dynamic, with varying lengths and pseudo-random ...
9
votes
1answer
252 views
How do I prevent XNA from pausing Updates while the window is being resized/moved?
XNA stops calling Update and Draw while the game window is being resized or moved.
Why? Is there a way to prevent this behaviour?
(It causes my network code to desynchronise, because network ...
13
votes
1answer
2k views
How do you add equipment to a 3D character model using XNA/Blender?
I've watched quite a few Blender tutorials, but I have yet to see examples of how to swap out sub-models. So my question is, how do you swap out equipment on a character model? Specifically I’d like ...
10
votes
1answer
756 views
Fog Of War - XNA
I'm creating my own top down 2D RTS game for personal educational purposes. Currently I really just copying Starcraft's design/ideas. I've decided I should probably implement Fog Of War too.
Let me ...
7
votes
5answers
2k views
2D Procedural Terrain Generation - Guaranteeing connectedness?
I'm working on a 2D platformer in XNA. One of things I'd like to be a main design characteristic is procedural content generation. The first step of that is to procedurally generate the terrain. So, ...
4
votes
1answer
155 views
Creating rectangles from the inner part of a texture2D
Ok, this may be hard to understand, but I'll do my best.
You will see that the first image is a normal mario, and the other is the result I am looking for. I'm trying to find a way to extract ...
7
votes
1answer
3k views
Resolution Independent 2D Rendering in XNA
I am trying to figure out the best way to render a 2d game at any resolution.
I am currently rendering the game at 1920x1200. I am trying scale the game to any user selected resolution without ...
10
votes
2answers
865 views
Projective texture and deferred lighting
In my previous question, I asked whether it is possible to do projective texturing with deferred lighting. Now (more than half a year later) I have a problem with my implementation of the same thing. ...
6
votes
2answers
2k views
The true cost to get my XNA game on XBox?
There seem to be many hurdles to get ones game onto Xbox, so far I have uncovered:
You need Visual Studio (once your game becomes commercial you cannot use Express - but have to pay for ...
5
votes
5answers
788 views
Glass shatter simulation
I need to make a simulation with stone thrown on the glass window. Could you please help me choose the tools to make it quickest and easiest? And maybe some tips how to do it :).
I mean, I was ...
4
votes
1answer
260 views
2D Magnet-like repelling behavior
If somebody wanted to develop a system between two intersecting rectangles so that the rectangles would, in a gradual process, push eachother away from one another until no longer intersecting, with ...
4
votes
2answers
2k views
Drawing a texture line between two vectors in XNA WP7
I want to create a simple graph maker in WP7.
The goal is to draw a texture line between two vectors what the user defines with touch. I already made the rotation, and it is working, but not ...
4
votes
2answers
384 views
Does XNA support 1 dimensional textures
Does XNA support 1 dimensional textures. And by 1 dimension texture I mean something like Texture1d not a Texture2d where one dimension is 1 (because of the 4096 limit)
3
votes
4answers
491 views
Some advice for settling on a map format for a tile game?
I am using XNA 4.0 and am currently working on a simple tile game to pass the time. Basically, I'm using the tried and true method of having numbers refer to tile types, where in 0 would be an empty ...
2
votes
1answer
403 views
Friction in 2D game
I'm developing a 2D platformer, although this question could probably apply to just about any 2D type physics; What is the equation for friction? I have sort of a hacky type of friction set up in my ...
2
votes
2answers
981 views
XNA Camera 2D confusion
I have followed the tutorial at http://www.david-amador.com/2009/10/xna-camera-2d-with-zoom-and-rotation/ to implement my 2D camera and everything works just fine. However this leaves me confused. ...
1
vote
2answers
2k views
Create a body of an irregular 2D sprite in Farseer
I'm trying to create a body of a irregular 2D sprite Farseer 3.3.1.
The regular shapes that BodyFactory provides are not that I want. Is there a way that one can create irregular objects? Could it be ...
6
votes
2answers
419 views
How does one specify raster operations in XNA?
I'm looking for a way to add a sprite using a particular logic operation (like XOR). I can't find anything on Google and I'm not sure where to look in the documentation.
I've looked into ...
5
votes
5answers
2k views
45° Slopes in a Tile based 2D platformer
I want to have simple 45° slopes in my tile based platformer, however I just cant seem to get the algorithm down. Please take a look at the code and video, maybe I'm missing the obvious?
...
5
votes
1answer
407 views
How to attach two XNA models together?
I go back on unsolved question I asked about attaching two models together, could you give me some help on this ?
For example, If I want to attach together Model1 (= Main model) & Model2 ?
I ...
3
votes
2answers
278 views
Cutting out smaller rectangles from a larger rectangle
The world is initially a rectangle. The player can move on the world border and then "cut" the world via orthogonal paths (not oblique).
When the player reaches the border again I have a list of path ...
3
votes
1answer
944 views
XNA mouse position in windows forms
I am using this code in Update method in XNA RenderControl in Windows Forms:
...
Mouse.WindowHandle = renderControl1.Handle;
MouseState stat=Mouse.GetState();
...
Everything works fine but when I ...
3
votes
1answer
826 views
2D platformer corner collision
Repost from my question on stack overflow, didnt know this site existed.
I have a 2d platformer and I need help with collision. To show you my current collision system, here is picture:
Top picture ...
2
votes
1answer
1k views
How to get file paths in XNA 4.0?
Is it possible to use OpenFileDialog in XNA 4.0 to get the file path? If not, what is the alternative?
I'm using XNA 4.0 to create a graphic display (not a game) and I have a file that contains ...
2
votes
2answers
370 views
How to store “chunks” of tiles or How to make my implementation work
I asked a previous question about the loading and unload of chunk data and people noted that my way of storing chunks is weird and I was wondering how I would go about doing it properly. @Byte56 ...
2
votes
1answer
676 views
Combine 3D objects in XNA 4
Currently I am writing on my thesis for university, the theme I am working on is 3D Visualization of hierarchical structures using cone trees.
I want to do is to draw a cone and arrange a number of ...
1
vote
2answers
184 views
Weird behavior with XNA SpriteBatch.Draw origin
I have a texture with 256x256 pixels.
Consider this piece of code:
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
...
1
vote
2answers
306 views
Background blur in 2D game?
In an XNA 2D game, I am thinking about blurring the background slightly to increase the feeling of depth? I am already using parallax scrolling which works pretty well in terms of enhancing depth ...
1
vote
1answer
356 views
Making XNA Play Nice With 3DS Max, Boundiing Spheres
I'm using 3DS Max 2010 with the KW x-porter plugin, which outputs a .X file (just downloaded the very latest version).
Been getting some odd results:
...
1
vote
1answer
307 views
XNA objects not occluding properly
I have got simple 1x1x1 cube model. I draw 3 of them. They are located at:
1,0,0
2,0,0
3,0,0
I draw them in the same order every time. When I move the camera and look at them from one end everything ...
1
vote
2answers
630 views
Getting a black scene with XNA, what am I doing wrong?
I'm new to XNA (ver 4) and I'm obviously doing something wrong but I don't know what.
So far I have managed to model my scene (quite simple, just a bunch of squares which are calculated--there are no ...
0
votes
1answer
134 views
Binding BoundingSpheres to a world matrix in XNA
I made a program that loads the locations of items on the scene from a file like this:
using (StreamReader sr = new StreamReader(OpenFileDialog1.FileName))
{
...
0
votes
2answers
2k views
Basic 3D Collision detection in XNA 4.0
I have a problem with detecting collision between 2 models using BoundingSpheres in XNA 4.0. The code I'm using i very simple:
private bool IsCollision(Model model1, Matrix world1, Model model2, ...
0
votes
1answer
1k views
XNA 4.0 - Mixing 3D and 2D - SpriteBatch putting weird alpha texture over whole scene
I am working on a game in XNA 4.0 that has been entirely in 3D so far but now I want to incorporate a HUD.
I have tried doing a simple test using spriteBatch as such:
spriteBatch.Begin();
...
0
votes
2answers
231 views
What does tex1D do with a 2d texture?
If I call tex1d from my pixel shader on a texture that has been initialized as a texture2d will it treat the data as a one dimensional array and then just take the element at whichever position you ...
