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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XNA - Darkening background and drawing something on top

In a game a group of friends and I are working on using XNA, we wanted to create an effect where we could darken the screen and draw something else on top of the darkened portion. For example, we have ...
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8 views

Unity or XNA allowing modifications from Steam Workshop

I'm about to start a sandbox project game for Steam, so modifications are important - before I begin, how do I allow people to create mods for the game through the Steam Workshop? I've looked but I've ...
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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 clas namespace WindowsGame4 { public enum MoveDirection { Left, Right, ...
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1answer
144 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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15 views

XNA/MonoGame RenderTargets not working

I'm having a problem with drawing 2 RenderTargets to the screen. using System; using System.Collections.Generic; using System.Linq; using System.Text; using Microsoft.Xna.Framework; using ...
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1answer
111 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
28 views

How to draw to a surface, then draw that surface to the screen

i have a 2D MonoGame Game (using DirectX), that was originally an XNA game. It involves prerendered shadows (they are Texture2Ds drawn with SpriteBatch.draw). Right now the shadows are being drawn ...
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1answer
22 views

Can I generate collision boxes from a model file with BepuPhysics and XNA?

I am currently developing a game using BepuPhysics in XNA 4.0, and I am trying to reasonably match the in game collision Entities with the Model they are associated with. My current workflow involves ...
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1answer
79 views

Pixel Shaders To Create Predator Effect

I am learning shaders, and I figured I would try to use them to create sort of a predator effect. I got to the point where I rendered my level to a rendertarget and passed that to the shader file, ...
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1answer
70 views

Center a 3D model to cursor's position

I am having a hard time understanding how to go about this. I have a 2D game with some 3D models in it. I want to move a 3D model to where the mouse cursor is currently at in every frame (In other ...
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3answers
118 views

How to achieve high Level of Detail on 3D models

I'm developing a 3D space-based game which allows free movement in all directions and features planets. Currently I am using the Visual Studio content manager to import models (spheres) with 2D ...
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20 views

How can I change the gear of my 2D character? [duplicate]

Is it possible to change the clothes of a 2D character(it's a 2D Windows Phone game) without creating new animations for that character? I want that the player can change the clothes of the character, ...
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1answer
57 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
358 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
36 views

XNA Rendering Blocks

I am currently building a little game in XNA and found something strange. I want to draw many blocks next to another (1x1x1 with a texture on the side) So what happens when I do it this lines ...
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1answer
72 views

Camera movement constrained to pixel boundaries

So a friend and me, we are currently making a game in C# using XNA. We are trying to get the camera to move in full pixel motion, but we just don't get it right. This concept is hard to explain, but ...
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31 views

Impassable Tiles With XNA/C# [on hold]

I can't get this to work for the life of me and I'm not entirely sure why, as I'm checking whether the tile is passable or not. I have a Tile class which contains a tileIndex, a tileSet and a boolean ...
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1answer
312 views

How to implement simple shadows on XNA?

UPDATE: See photos below the description I try desperately to implement shadows on my XNA games. My game is a style of games like Voxel (minecraft). The problem is that I do not find support / ...
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7answers
6k views

How can I implement hexagonal tilemap picking in XNA?

I have a hexagon tiled map in which i need to check when a hexagon is clicked. The hexagons aren't actually touching, rather they have a slight gap in between each of them. Does anyone know how I ...
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1answer
35 views

how to stop camera at the end of world map when zoomed in

Im building a tile-based game, and Im trying to implement zooming in on the center of the screen. My problem is, when I get to the edge of the map and im zoomed in, Im noticing that my camera doesn't ...
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2answers
65 views

Help on transition from one position to another

I'm pretty sure I'm over thinking stuff, but I can't seem to figure this out. I want to move the object from one location to another. Here's what I got. I searched this up earlier here, and I found ...
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1answer
64 views

Draw many flashlights' focused lights' “circles” on a voxel engine map (and other objects)

So, I've been searching the internet for a while and I still didn't understand how to create a flashlight's "circle" in front of the camera over other objects. I found the following links: using ...
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1answer
106 views

Is sidescroller movement just offsetting the background?, MonoGame/XNA

When I make a sidescroller game and what to move my character do I just offset the background, or is there another better way?
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1answer
55 views

FPS issue between computers results in slow down of animations and moving

I have been developing my game on two computers. I recently got a new computer and have noticed an issue that seems to be happening in my game. When computer 1 runs the game at 60 FPS everything ...
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2answers
521 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
61 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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1answer
307 views

Disappearring instances of VertexPositionColor using MonoGame

I am a complete beginner in graphics developing with XNA/Monogame. Started my own project using Monogame 3.0 for WinRT. I have this unexplainable issue that some of the vertices disappear while doing ...
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1answer
529 views

Spritebatch Vertex shader world matrix change after each draw

I have a spritebatch where I draw some textures transformed in 3d space. The easy way was just Begin with the transformation matrix, draw, and end it right after. But that is silly, so I'm trying ...
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1answer
22 views

XNA C# Texture Atlases

Fairly new to XNA and not an expert on C# either. So I was following a tutorial, specifically this one http://rbwhitaker.wikidot.com/texture-atlases-1, and there is a bit of code I am unfamiliar with. ...
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1answer
38 views

Porting WP8 to IOS GraphicsDevice Error (Monogame/Xamarin)

I seem to be having a problem porting to IOS. I have my game working on WP8 and Android with any major issues but when trying to run on iPhone I seem to get an error when initialising the ...
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1answer
432 views

In Monogame, why is multiple tile drawing slow when rendering in “windowed fullscreen”?

I have this drawing function (recommended as a solution here). It draws tiles on the whole window with no problem but my game slows down to ~30fps after maximizing it to "windowed fullscreen", which ...
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1answer
30 views

XNA Starting a parallel Thread during a draw loop is slower than doing the same task in the main thread in update loop

I'm using XNA and all of my drawing is done in the main thread. I am CPU-bound and I thought I could gain performance by moving some non-update logic (like animation update) from the update loop into ...
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1answer
27 views

Bug in XNA Developer function CalculateEigenVector() from the file “xnacollision.cpp”?

I am trying to decipher the content of the Microsoft XNA Developer source file "xnacollision.cpp" and I've found a function that calculates one of the three eigenvectors of a homogeneous system of ...
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1answer
36 views

Issue with rotating particle effects with DrawUserPrimitves

I am creating a voxel-like game in XNA/Monogame. I am trying to create particle effect of which I create by making a list that is populated every frame. My issue is here: I am using a WorldMatrix to ...
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1answer
59 views

XNA Distortion Shader problem

So I came up with a distortion pixel shader in hlsl, but it has some issues. First of all, here is how it works: The shader uses another texture generated by the program as a distortion "map" (if ...
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1answer
539 views

C# XNA - How to animate using Texture Atlas/ Sprite Sheet

I have a problem which I need to resolve. I am making a Space Invaders game in C# XNA. I've been following this tutorial for the Invaders: ...
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1answer
47 views

What is the recommended way to store game entity data? [closed]

The following is specific to my problem, but I believe the principles can be applied to any game. I am currently working on a 3D game which will have many different types of spaceships. The physics ...
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3answers
78 views

Simple way to shoot bullets from a ship at angles for shoot em up

Just like the title says. I'm working on a shoot em up for a personal project, and I can't seem to get this to work. I don't have any code for it, but I do have the code to make my ship shoot, but ...
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1answer
778 views

3DS Max MassFX — Animation to XNA without bones/skins?

I made a model in which a number of cobble stones fall into a hole using the rigid bodies in 3DS Max 2012 MassFX. They are just editable polys, no skin, no bone. I want this to play (Take 001, 0-100 ...
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3answers
144 views

MonoGame 3.3 Font loading

Is there any way to have fonts in game without making a separate Content Project and adding a .spritefont file in the new 3.3 Monogame? You can now load other resources directly from the Content ...
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1answer
125 views

How to setup a particular blend state where the alpha channel is additive?

I would like to set a blend state to be "additive" and do the following: Result.R = Source.R + Destination.R; Result.G = Source.G + Destination.G; Result.B = Source.B + Destination.B; Result.A = ...
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7answers
1k views

UI mockups to the code

My UI designer has made a lovely photoshop PSD of the UI and everything pretty. The biggest problem I'm having is converting some of the more elegant fonts used into something renderable in-game. Is ...
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1answer
155 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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2answers
65 views

Collision detection problem in XNA

I'm having two problems with my collision detection in XNA. There are two boxes, the red box represents a player and the blue box represents a wall. The first problem is when the player moves to the ...
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3answers
165 views

Is there a way to scale a texture via GPU rather than by CPU?

For my game that I'm developing I want to have my cards dynamically drawn so if there is any changes done to them it could be drawn on the card itself. What I have currently is that the cards are ...
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1answer
66 views

XNA game publishing help with incompatibilities via content built at runtime

MY XNA game is finally complete, but I'm having difficulty getting it to run on other Windows computers. I've read similar other stackexchange topics here, here, and here, but I'm still gonna need ...
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1answer
114 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
84 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
102 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
178 views

How to deform 2D tileable texture in XNA/MonoGame

I'm looking for a way to deform tillable texture in a 2D game I'm building using MonoGame but I'm not sure how this effect is called and searching the internet for "deforming textures" gives me mostly ...