Windows Phone 7 is a phone operating system built by Microsoft to replace Windows Mobile. Key features include, Metro Design, access to XBOX Live, Office, Skydrive. Applications written for Windows Phone 7 are built with Silverlight or XNA Game Studio.

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12
votes
6answers
5k views

Making (or emulating) a “D-Pad” on a touch-screen; virtual d-pad

With the proliferation of touch based devices, many lacking a true D-Pad, I'm wondering if anyone has any resources on how to emulate a D-Pad on a touch screen? I'm specifically interested in XNA ...
12
votes
2answers
2k views

Playing a Song causing WP7 to crash on phone, but not on emulator

I am trying to implement a song into a game that begins playing and continually loops on Windows Phone 7 via XNA 4.0. On the emulator, this works fine, however when deployed to a phone, it simply ...
11
votes
4answers
4k views

What are the app file size limitations for different smartphone OSes & carriers?

I know the iPhone App Store limits how large an app can be in general and there are also limitations with AT&T over the size it can be to transmit over a data plan vs WiFi. I have no idea what, if ...
9
votes
1answer
418 views

Zune same features as WP7? (gesture, accelerometer)

We don't have zune HD in Canada (yet) just wondering if it has the same programmable features as WP7? Like gestures and accelerometer. Basically if I am just making a game, with screen controls ...
8
votes
3answers
6k views

How do I make objects move along a path?

I'm trying to get something like the below image. As you can see, there's a highway and inside of it, there'll be some objects moving (millisecond). I guess the street behavior is like a pipeline. ...
7
votes
1answer
1k views

XNA Sprite Flash Effect

I'm looking for a way to render every non-transparent pixel in a sprite solid white (to 'flash' the sprite white when the player takes damage etc). This is on Windows Phone 7. I was using a very ...
7
votes
2answers
398 views

Windows Phone Performance Analysis makes game run faster. Possible reasons?

A XNA game I was making was running slowly on my WP7 device. However when I started it in Windows Phone Performance Analysis to find the bottleneck, the game ran smoothly on the same device. I ...
6
votes
1answer
443 views

First Steps. Windows Phone game development

I'm pretty new in game development. Have a couple ideas wich could be cool. First that comes to mind is to develop a 2D game (kinda puzzles) for Windows Phone Mango. You may ask: "Why Windows Phone?". ...
6
votes
3answers
314 views

What is the “pricing standard” on Windows Phone?

On iOS, I find it is more usual to see light versions of a game for free (with ads and less features) and a full version for a cost and all the features. On Android, I see more games that have both a ...
6
votes
2answers
1k views

How to do smooth sprite movement on WP7 XNA

What's the correct technique for getting smooth sprite translations with XNA? I've been developing the WP7 version of an app for a startup, so when we heard Angry Birds got ported today we wanted to ...
6
votes
1answer
793 views

Font library for XNA

Is there a free type library kind of implementation available for XNA? I wish to use it on WP7, so it should be a managed code. I know can alternatively use spritefont, but I wish to know if other ...
6
votes
2answers
433 views

How do you publish a Xbox Live game on Windows Phone?

Curious if any of you have gone through the process? How did you kick it off? Is there anything in particular that we should be aware of when trying to make a Live game?
6
votes
2answers
2k views

Sketchup for modelling, Blender for lightmaps, rendering in Xna Reach profile?

This question moved from http://stackoverflow.com/questions/4319183/sketchup-for-modelling-blender-for-lightmaps-rendering-in-xna-reach-profile Hello. I'm a programmer looking to add some 3D assets ...
6
votes
2answers
681 views

Showing Unicode in XNA on Windows Phone 7

I am creating an application which downloads names from server. These names can be any unicode language text which I need to render in XNA on WP7. The biggest problem I see here is WP7 xna system ...
5
votes
2answers
404 views

Black bars on 720p emulator?

I'm making a game for Windows Phone 8 using XNA 4.0 in Visual Studio express 2012. I'm trying to add a background image to the game with a size of 1366x768 (as i believe WP8 only supports up to 720p). ...
5
votes
1answer
2k views

XNA / WP7 accelerometer sample / example ball rolling

Does anyone know of a good WP7 accelerometer sample of a ball rolling around on a screen?
4
votes
3answers
448 views

Does anyone know where I can find wp7 indie game sales data?

I am curious about whether to develop an xna game for the windows phone 7. It would be nice to know how the games are doing on that platform sales wise. Something like this would be very helpful: ...
4
votes
2answers
685 views

How should I manage events in XNA on the Windows Phone 7 without impacting performance?

It's best-practice to not to create lots of short-lived temporary objects the heap as it'll eventually force a garbage collection during game-play. It is best to create short lived value objects. ...
4
votes
4answers
556 views

How can I draw a shadow under my character?

I created a 2D tile-based jump and run game for Windows Phone and I want to draw a shadow under the character. How can I do that? The shadow must also be drawn on the tiles if the character jumps. The ...
4
votes
1answer
807 views

Fade from one Color to another

How would one go about gradually fading a sprite from one color to another?
4
votes
1answer
629 views

Cinematic in 2D games

I am searching for a way to create and integrate cinematic in a simple 2D game with XNA for Windows Phone. I don't know if the best way is to create an animation with sprite and commonly process to ...
4
votes
2answers
3k 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 ...
3
votes
6answers
1k views

Should I go with Windows Phone 7 or Try Android? [closed]

I already know C# and am familiar with XNA. So it would make sense to develop for the Windows Phone 7, but would it be worth while to learn Java, get familiar with Android, and instead develop for ...
3
votes
2answers
8k views

Rotate vector by matrix?

If I have a Vector, say (1,1), how can I rotate it around the origin (0,0)? I'm working in XNA if that helps.
3
votes
2answers
218 views

Game maps with “counties” that are split along lines that aren't necessarily straight

I want to create a game environment that supports a 2D map. This is a really basic map, but must be split along lines that are not necessarily straight. So imagine a country with county boundaries. ...
3
votes
2answers
353 views

Handling sound effects for Multiple Collisions

How can I generate somewhat realistic sound effects for collisions in a physics engine that simulates lots of objects? E.g. take >10 marbles that are bouncing off walls and off each other. If I ...
3
votes
1answer
315 views

How to sync the actions in a mutiplayer game?

I connect the clients with UDP (its a peer to peer connection on a multicast network) and the clients are sending their positions in every frame (in WP7 it means the default 30 FPS) to each other. ...
3
votes
1answer
115 views

Saving data across same game in multiple devices [closed]

Is there any library or something that works like iCloud but for different operating systems (Android, IOS, Windows Phone) that allow me to save game data to cloud and open the game data from another ...
3
votes
1answer
209 views

CPU Usage on the UI thread Warning - XNA WP7.1

When I run the Store Test Kit's profiler against my game, I get a warning that says something along the likes of "Very high CPU usage on the UI thread for operations other than frame drawing." ...
3
votes
2answers
729 views

16-Bit textures in XNA 4 on WP7

WP7 textures are supported in the Reach-Profile that WP7 devices falls into. But XNA converts all my ressources upon adding them to a project to RGBA8, that's insane, the displays of WP7 devices are ...
3
votes
1answer
2k views

How do I implement SkyBox in xna 4.0 Reach Profile (for Windows Phone 7)?

I'm trying to Implement SkyBox in my phone game. Most of the samples in the web are for HiDef profile, and they are using custom effects (that not supported on Windows Phone). I've tried to follow ...
3
votes
1answer
770 views

How can I draw beautiful lines with XNA on WP7?

I'm trying to figure out how to draw good looking lines using XNA on the WP7 platform. By good looking I mean something not skinny and flat that a simple primitive gives you. A nice gradient, or ...
3
votes
1answer
482 views

No response to touch from XNA page after navigated from Silverlight page

I am creating XNA/Silverlight game in Windows Phone Mango. Testing with the emulator in both the Release and Debug mode. From the main page, I call a settings page written in Silverlight. Then I back ...
3
votes
1answer
235 views

XNA windows phone release black textures

i just made a 3d game in XNA for windows phone 7. I build it in release mode on visual studio 2010 and suddenly when I run game there is no textures on models - 2 models are black and one is ...
3
votes
1answer
527 views

How can I use orientation to compute position in Windows Phone 7? [closed]

I'm using the motion API and I'm trying to figure out a control scheme for the game I'm currently developing. What I'm trying to achive is for an orienation of the device to correlate directly to a ...
2
votes
2answers
1k views

2D physics engine for WP7?

I'm looking for a 2D physics engine for Windows Phone 7. Is there a port of something existing for use?
2
votes
2answers
920 views

Why does my sprite jitter when it arrives at its destination?

I have just started looking into XNA for WP7 - and I am definitely the sort of person who likes to find answers to my questions without begging for help! I searched here to find an answer but I found ...
2
votes
2answers
307 views

How can I measure the velocity of a drag gesture?

I want to measure the velocity of a drag(FreeDrag, VerticalDrag, HorizontalDrag) gesture on my Windows Phone. For example, if the measured velocity of a drag is 40 km/h, the player will shoot a bullet ...
2
votes
1answer
80 views

Draw depth works on WP7 emulator but not device

I am making a game on a WP7 device using C# and XNA. I have a system where I always want the object the user is touching to be brought to the top, so every time it is touched I add float.Epsilon to ...
2
votes
3answers
588 views

Publishing a game — any way to target both WP7 and Win8 Store?

I'm at a dilemma which seems should soon become an important issue for a lot of developers. If I build a game in XNA, I won't be able to publish it on the Windows 8 Store, as it would be a classic ...
2
votes
1answer
980 views

How do I load Gleed 2D levels in WP7 XNA game?

I've been trying so long to use this modified version of GLEED2D that includes WP7 support, I'm stuck into loading the level into my game, now my Game1.cs class has the following: protected ...
2
votes
1answer
122 views

XNA project won't target .NET 4.0

I am trying to reference the System.Threading.Task assembly. If I am not mistaken, it should be part of mscorlib. But no matter what I do, my project always defaults to the .net 2.0 runtime. Even if I ...
2
votes
1answer
199 views

Dynamically Discovering Game Content

I am trying to determine the best way to dynamically discover new levels in my Windows Phone game. This is necessary because I will be selling some levels separately to those included with the initial ...
2
votes
1answer
603 views

Why is my primitive xna square not drawn/shown?

I have made this class to draw a rectangle, but I cant get it to be drawn, I have no issues displaying a 3d model created in 3dmax, but shown these primitives seems much harder I use this to create ...
2
votes
1answer
306 views

Are mobile devices a viable platform/market for “User-Generated Content”-based games?

I intend to do a lot of research into this, but I know this community has a knack for delivering hard-to-find gems of knowledge, so I figured I'd ask here first. Preamble (My Situation) I'm ...
2
votes
1answer
85 views

Can I sell Windows Phone 7 games on the marketplace from India?

I am a developer from India working on a game in WP7. I need to know, can I sell my game in Windows phone apps marketplace or is it like Android market where only free/ad-based is allowed?
2
votes
1answer
218 views

Can I use the inclinometer and accelerometer on every Windows Phone device?

I want to do a little game that uses the Windows Phone inclinometer to control an object's pitch, roll and yaw. In addition, I need the accelerometer in another project to let an object jump. Can I ...
2
votes
1answer
242 views

XNA Framework Reach profile does not support separate alpha blend

Yesterday I released my app 'Pic Words' to the windows phone store. It is an Silverlight/XNA app that runs on Windows Phone 7.1 & 8. I have BugSense incorporated into my app. Today I started ...
2
votes
1answer
118 views

How I support different display resolutions? [duplicate]

I'm developing a 2D windows phone game. The game should look the same on every windows phone device. But I have no idea what to do so that my game looks great on every display resolution. How can I do ...
2
votes
1answer
311 views

Is it possible to update the livetile in XNA WP7 game?

( I'm not sure if this question belongs here, but since it is related to game development and I have no idea where else I should post this, I will post this here ) As the title says, what I am ...