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.

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SetRenderTarget(null) clearing previous draw calls

I'm not sure if everything's working as it should be or whether I'm just not doing something properly, but I couldn't find anything that discussed this so I thought I'd ask here. I'm using Monogame ...
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1answer
172 views

XNA Skinned Model - Keyframe.Bone out of range exception

I'm getting an IndexOutOfRangeException on this line of AnimationPlayer.cs: boneTransforms[keyframe.Bone] = keyframe.Transform; I don't get what it's really referring to. The error happens when ...
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32 views

C# XNA 4.0 2D Tilemap based detection [closed]

So, the first thing I want to mention that I seem to do differently than others is I don't use a velocity, I just increment the player's position by 2 px every keystroke. What I am trying to achieve ...
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Trying to stop constant movement i want to used the triggers to speed them up [closed]

{ /// /////////// /// 22/9/14 /// public class Game1 : Microsoft.Xna.Framework.Game { GraphicsDeviceManager graphics; SpriteBatch spriteBatch; int ...
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2answers
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Can you save a png in XNA larger than the backbuffer width?

I'm looking at using the 'savetopng' method of the texture2D class to draw out custom textures. My problem is that my viewport is quite small (the application runs in a window) and the textures will ...
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How do I open/edit a *.xnb file in XNA Game Studio 4.0?

I've downloaded a *.xnb font sprite, but I don't know how to open/edit it. I installed XNA Frameword 4.0 in VS 2010. Thanks for your help!
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2answers
58 views

Speeding up sprite the second time it passes the screen [closed]

I'm a student studying Games Development. I want a sprite to speed up on it's second passing of the screen. How do I do this? Code I wrote so far: public class Game1 : Microsoft.Xna.Framework.Game { ...
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2answers
210 views

Water Physics In top down 2D game

I have been making a game like Minecraft or Terraria in which you add blocks and such to the world, and I came across this interesting debacle, the game is in a top down 2D perspective, and I would ...
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2answers
474 views

XNA 3.1 to 4.0 Vertex Shader Not Drawing

I have recently been converting our XNA 3.1 game to XNA 4.0 and am stuck on the shaders. I have the game running, but nothing is drawing to the screen, except things not using a shader. This is only ...
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91 views

Collision detection implementation suggestions

I'm working on a simple 2D game involving a rotating octagonal ring where a sphere sprite moves up/down avoiding objects as the ring rotates faster and faster. I'm having a difficult time with the ...
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1answer
287 views

How do I generate a mipmap for a texture loaded from a stream?

I am loading a Texture2d from a stream: public static Texture2D GetTexture(GraphicsDevice dev, System.Drawing.Bitmap bmp) { Texture2D texture; using (MemoryStream s = new MemoryStream()) ...
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1answer
267 views

Scaling Skeletal values to be able to reach objects on the screen

I have created a game using Kinect + XNA and the game runs on full screen mode.. However when i try to touch or reach a certain area on the screen using hand.. I cant reach it.. I will already be ...
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1answer
590 views

Stencil mask with AlphaTestEffect

I am trying to pull off the following effect in XNA 4.0: http://eng.utah.edu/~brendanw/question.jpg The purple area has 50% opacity. I have gotten pretty close with the following code: public ...
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1answer
199 views

Issues with touch buttons in XNA (Release state to be precise)

I am trying to make touch buttons in WP8 with all the states (Pressed, Released, Moved), but the TouchLocationState.Released is not working. Here's my code: Class variables: bool touching = false; ...
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3answers
109 views

Get highest (Y-axis) vertices from primitive d20 dice in xna

I have created a d20 dice (icosahedron) in xna and used BEPU physics to roll it. But now I'm trying to get the value from the dice after its rolled. I was thinking about looking for the 3 vertices ...
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1answer
652 views

Should the networking of my game be a component or a service?

I am working on a windows game and I am trying to understand the XNA GameComponents and GameServices classes and use. From what I understand about a component is that it has an Update method that ...
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1answer
655 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 ...
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55 views

How to block Kinect rotation

I'm developing a Kinect Project using C# and XNA 4.0. Now facing a problem that I couldn't solve. When the player turn around himself, the avatar doesn't turn, but its arms and legs are trying to ...
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3answers
2k views

XNA: Rotating Bones

XNA 4.0 I am trying to learn how to rotate bones on a very simple tank model I made in Cinema 4D. It is rigged by 3 bones, Root -> Main -> Turret -> Barrel I have binded all of the objects to the ...
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2answers
148 views

Detecting Hitbox Collisions (Rectangle)

So I have some Hitboxes set up on 2 classes, HealthPickup and Player. public static Rectangle Hitbox; public override void Initialize() { Hitbox = new Rectangle(Pos.X, Pos.Y, 32, 32); } That's ...
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5answers
1k views

How can I simulate shattering glass?

I need to make a simulation with stone thrown through a glass window. How can I accomplish that? I mean, I was thinking about making a 3D model of a stone and glass in 3D Studio Max 2012, shatter the ...
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2answers
186 views

The XNA redistributable isn't in the prerequisites list; how do I include it when publishing?

So I created a small project in XNA 4.0, and wanted to try and publish it, and so I did. Yet when attempting to install it on a different computer it didn't seem to work. I've read and studied about ...
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47 views

graphics.IsFullScreen resetting to false after game constructor and graphics.ApplyChanges()

This is a MonoGame 3.2 Windows (DirectX) Project. I've tried setting graphics.IsFullScreen to true in the game's constructor and in the game's initialize function, both times running ...
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2answers
409 views

Set a 2d camera's position so that a building is under the players feet

My issue is this: i am making a scrolling game in XNA, and the camera updates based on the players velocity, but the player never actually moves, he is always in the center of the screen. When he hits ...
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1answer
90 views

Why am I getting a return value of zero from my position computation function?

Ok I have a Function int x(), which is used in new Rectangle(x(),a,a,a); in DrawMethod in XNA but when I use it I get x() = 0 as as the answer.Here is my CODE: int x() { int px ...
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84 views

Find world matrix

I'm making my first 3D-game with XNA (MonoGame) and have come to a point where I wish to add a crosshair for the player. To do this I need the on-screen coordinates of the location where my fighter ...
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1answer
28 views

XNA Texture2D storage question

Are Texture2D objects stored on the graphics card or on system memory? I am thinking that the backbuffer is located on the graphics card (by default) and that the textures are on the system memory. I ...
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2answers
77 views

Loading and storing content efficiently

So for example I have a class called TypingKeyboard. It allows you to display a string while it's being typed by the computer with sounds. I need one in the menu, for the title. And one for the ...
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1answer
32 views

XNA - Autodeploy .exe of game upon succesfull commit to GIT

I know of ClickOnce which creates an .exe file so a user can play my XNA game. However, I have to manually go through a wizard in order to create this file. I would like for the new .exe to be ...
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1answer
67 views

How can I determine whether a unit is in range or not?

I'm programming a small game that's going to be somewhat like a tower defence. I was playing around with how I determin whether a unit is in range or not. public void Update(GameTime theGameTime) ...
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1answer
32 views

Should I Open/Close SpriteBatch with different settings?

I'm still new in game developpement, and I'm trying to complete my 1st game. Its a simple 2d game, but i'm trying to add lots of differents techniques in it. It's all good when you take a single ...
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58 views

Any easier way to add networking to an XNA game? [closed]

I know that the MSDN has an article on this but I'm not developing for Xbox so I'm not sure if I should use NetworkSession or LocalGamer etc etc because I think they are Xbox only. But I haven't tried ...
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3answers
116 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 ...
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2answers
112 views

How to Calculate Velocity in a 2D space game

I am currently using screenpos.X = (float)(screenpos.X + velocity * Math.Sin(r)); screenpos.Y = (float)(screenpos.Y - velocity * Math.Cos(r)); For my Movement with r being the Rotation in Radians. ...
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1answer
70 views

XNA 4: RenderTarget2D textures getting transparent on fullscreen

I'm generating a Texture2D object using RenderTarget2D as in the following code public static Texture2D GetTextTexture(string text, Vector2 position, SpriteFont font, Color foreColor, Color ...
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187 views

How can I make an object's hitbox rotate with its texture?

In XNA, when you have a rectangular sprite that doesnt rotate, it's easy to get its four corners to make a hitbox. However, when you do a rotation, the points get moved and I assume there is some kind ...
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1answer
58 views

XNA tempory pause

I need to do a temporary pause. If I do a collision with an enemy I want to pause the game for 1.5 seconds. Take a look here to my code: bool tPause; float timer; public ovveride Update(GameTime ...
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3answers
154 views

Rotation matrix for a 3D vector

I have a direction vector on which I have to apply some rotation to align it to positive z-axis. To use Matrix.CreateRotationX(angle) of XNA, I need the angle for which I'd have to compute cos or tan ...
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Sprite sheets, Clamp or Wrap?

I'm using a combination of sprite sheets for well, sprites and individual textures for infinite tiling. For the tiling textures I'm obviously using Wrap to draw the entire surface in one call but up ...
9
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4answers
652 views

Make the player run onto stairs smoothly

I have a 2D Platform game, where the player Always runs to the right, but the terrain isn't Always horizontal. Example: I implemented a bounding-box collision system that just checks for ...
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1answer
53 views

Applying textures to 3D models

I want to apply textures to a 3D Model in XNA 4. Whatever I saw on the internet was to apply the textures in the modeling tool and then load the model (*.fbx) into XNA. Is it possible to load the ...
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1answer
54 views

RenderState in XNA 4

I was going through this tutorial for having transparency which can be used to solve my problem here. The code is written in XNA 3 but I'm using XNA 4. What is the alternative for the following code ...
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XNA Windows Resolution / Mouse Position Bug

In XNA, when in windowed mode and resolution (set via PreferredBackBufferWidth/Height) is close to the resolution of the display, the view is distorted (zoomed in a bit)and the mouse coordinates are ...
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29 views

Transparency in XNA-4 primitives

I'm using XNA 4 with Visual Studio 2010. I'm trying to create a simple 3D world with walls and doors in which the user to free to roam around. A wall is just a rectangle which is currently being ...
3
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1answer
376 views

XNA, how to draw two cubes standing in line parallelly?

I just got a problem with drawing two 3D cubes standing in line. In my code, I made a cube class, and in the game1 class, I built two cubes, A on the right side, B on the left side. I also setup an ...
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2answers
175 views

Collide with rotation of the object

I'm developing a mirror for lazer beam(Ball sprite). There I'm trying to redirect the laze beam according to the ration degree of the mirror(Rectangle). How can I collide the ball to the correct angle ...
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1answer
40 views

When to get input state: multiple times or one time in a static class?

Let's say I have these classes: Player Here I want to make the player jump: current_state_ = Keyboard.GetState(); if ((current_state_.IsKeyDown(Keys.Space) || ...
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1answer
88 views

XNA 4.0 HLSL - strange depth map

I want to draw my pre-rendered depth map to the scene. I get my depth value in the following way: basically (Pixel Shader) // Depth is stored as distance from camera / far plane distance, 1-d for ...
2
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1answer
100 views

SpriteBatch, trying to reduce draw calls

This my main draw call: Matrix Camera_transformation = player_camera_.GetTransformation(); // Background - AlphaBlend spritebatch.Begin(SpriteSortMode.Deferred, ...
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25 views

XNA alpha channel mask

I'm trying to highlight a portion of the screen, such that the entire screen is covered with a semi-transparent black mask but part of that mask is "cut out", kind of like it's being lit up while ...