XNA is a game framework by Microsoft that allows deployment for Xbox Live Indie Games as well as Windows Phone 7.

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3answers
108 views

2d camera shaking back and forth

I'm trying to create a smooth moving 2d camera but the camera is shaking back and forth 1 pixel. Player camera rectangle: public Rectangle recCamPosition(Global global) { return new ...
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2answers
187 views

How i can do colisions with irregular hitboxes [XNA]?

I'm developing my new platform engine and i don't know how to program collisions with slopes - I'm using hitboxes. For the collisions of rectangles i use this: if (player.rec(Position, ...
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2answers
585 views

Sprite collision with color?

Is this possible? To elaborate, I am making a PacMan offshoot. Essentially it is a "zoomed in" version of the game, but the board is randomly generated. I have 11 .png files each to be used as a ...
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2answers
101 views

XNA My Texture's Transparency is shown Black

I am trying to draw an image on to the screen. My image is drawn correctly but the background color which is transparent is shown black. Why is this so? My code: spriteBatch.Draw(Texture, Position + ...
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2answers
152 views

XNA: How to capture precise time of button press?

I'm guessing the default XNA model encourages checking for button presses in Update(). However, I am developing a game-like application for research and need to measure reaction times as quickly as ...
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2answers
558 views

C# - How to properly play background songs in XNA

So I'm using the game states (enum) to change my game screens. I have 2 songs for main menu and game playing states, respectively. To play songs, I'm using an old code example I saw at MSDN, like ...
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2answers
45 views

In XNA, how do I make a sprite move towards another?

I am making a shoot-em-up with a player-controlled sprite with a gun: I have most of the game working, but I have gotten to the point where I need to load in the enemy characters and make them move ...
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2answers
46 views

How can I follow the player sprite with the camera?

I've spent the last 4 days trying to figure out how to get a camera to follow the player sprite. I've followed every tutorial I could find and none of them worked. My Camera script looks like this. ...
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1answer
1k views

Drawing Shape in DebugView (Farseer)

As the title says, I need to draw a shape/polygon in Farseer using debugview. I have this piece of code which converts a Texture to polygon: //load texture that will represent the tray ...
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1answer
853 views

Clipping polygons in XNA with stencil (not using spritebatch)

The problem... i'm drawing polygons, in this case boxes, and i want clip children polygons with its parent's client area. // Class Region public void Render(GraphicsDevice Device, Camera ...
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1answer
38 views

Monogame / XNA - Multple 2D Cameras (Rectangle) on screen

I recently started building a simple 2D roguelike game using Monogame 3.4. I was keen on building the game "engine" myself as I saw it as a fun learning curve. Monogame was pretty much the best option ...
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1answer
51 views

Shadow map depth error makes all light be covered and hidden

I've been following the tutorials listed below: http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series3/Shadow_map.php http://xbox.create.msdn.com/en-US/education/catalog/sample/shadow_mapping_1 ...
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1answer
148 views

XNA game structure question

I see to be running into a problem here. I know it's easier to show code samples so here you go. This is my main game class namespace WindowsGame4 { public enum MoveDirection { Left, Right, Up, ...
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1answer
197 views

Lightning bolt effect with particles is not continuous

I am Drawing a lightning effect animation using this image: Below the result: As you can see the outcome is not a continuous purple color as I wanted it to be, but it has black spaces in ...
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1answer
74 views

How to order objects with the same depth in the spritebatch cycle?

I have a tilemap in a isometric 2.5 view and i have also many objects moving and static. The problem is many statics are standing in a "integer" place for obvious reasons and the depths of each object ...
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1answer
111 views

XNA/Winforms - Nothing being drawn after calling SetRenderTarget(null)

I'm creating a basic scene/level editor using XNA/Winforms using the base classes from http://xbox.create.msdn.com/en-US/education/catalog/sample/winforms_series_1 Everything works fine and gets drawn ...
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1answer
136 views

Having trouble getting shader to work with sprite batch in XNA #4

I found a neat "CRT screen" effect shader on the web, but I've never used shaders before and I can't seem to get it working properly. If I do the second sprite batch in my code here normally without ...
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1answer
189 views

Remove item after crafting

I'm having one last problem with my crafting system. Say an item takes 2 rocks, 1 twig, and 1 vine. When I craft the item, only 1 of each item is removed instead of the correct amount of items related ...
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1answer
120 views

Incomplete mesh using DrawIndexedPrimitives after rotating mesh

Through help on this site I was able to draw the triangles of an unrotated, nonscaled nontransformed mesh created in Blender and exported to OBJ, accurately imported through Assimp and rendered in XNA ...
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1answer
394 views

How to update “dynamicVertexBuffer” correctly with “setdata” on XNA?

I developed a small 3d games xna and uses a "DynamicVertexBuffer" and "DynamicIndexBuffer" to store and draw my vertices. Everything works fine, but my problem is the "Update" function where I update ...
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1answer
392 views

How can I disable mipmapping on textures loaded from .X files?

I'm trying to render a plane mesh textured with a simple grid pattern. The problem is that XNA keeps mip-mapping the texture in horrible, horrible ways. What I'm trying to achieve is to get this ...
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1answer
53 views

Logic outside of game loop running slower than calculated

I've been trying to figure out what is happening when I run functions from the update loop in XNA that the game freezes for a few seconds until the function is done. When I do performance testing to ...
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1answer
169 views

Why are the coordinates interchanged in Monogame?

If I use XNA Gamestudio, I can draw a sprite on a specific position like this: spriteBatch.Draw(Texture2D, new Vector2(PositionX, PositionY), Color.White); But in Monogame, I must change the ...
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1answer
1k views

Xna tile map collision

I finally found a tutorial on tile maps and loading them in from a file that I understand (http://circlessuck.blogspot.co.uk/2012/09/xna-tutorial-basic-tile-engine-part-2.html), however the tutorial ...
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1answer
217 views

XNA changing color alpha

I know I can take a color and multiply it by a float to reduce its alpha like that: Color color = Color.Green * 0.15f; But how do I return the color's alpha to it's original value? I tried doing ...
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1answer
330 views

3d Wall sliding collision

I'm working on collision for walls in my game and the way I currently have it I get stuck walking into a wall. I'm trying to make my character slide on the walls but still collide. My character moves ...
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1answer
97 views

Setting texture in effect pass

I created different types of cubes for my cube class and based on the height of the cube, the cube type is different. This means changing the texture for the cube. if (y >= 1) ...
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1answer
82 views

A quick question about culling

So I have some vertices that I'm drawing with XNA and the issue I had ages ago was that they weren't appearing when the camera was placed above them. By turning on backface culling this fixed it, but ...
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1answer
242 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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1answer
158 views

SpriteBatch memory leak

I have a strange problem with XNA 4. I'm constructing a SpriteBatch using this.spriteBatch = new SpriteBatch( GraphicsDevice );. This leads to a memory leak up to 600 MB memory consumption. This ...
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votes
1answer
117 views

How to remove line between two Points XNA 4.0?

I'm new to XNA and wondering if it is possible to remove a line (that lies between two vectors) when the mouse clicks on that line. I've searched everywhere but I can't seem to find anything. My ...
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1answer
303 views

Programmatically creating a 3d mesh in XNA

Surprise! Another question related to Minecraft. Anyways: Rather than drawing thousands of blocks each frame, I remember reading somewhere that Minecraft breaks the map into 16x16x256 chunks, and ...
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1answer
184 views

How to shoot lasers from Ship(XNA)?

I want a code which allows me to shoot multiple lasers from my Ship. Its a 2D game and the laser TEXTURE2D moves in a straight line. My Solution: I use List<> class of my Laser Class. ...
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1answer
214 views

How Do Game Timers Work?

I don't understand the whole game timer things, I know XNA comes with one but im realying on VSync to do the work rather then a game timer. I know what they are It's just can someone show me of a ...