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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How can I create a 2D camera with zoom and parallax scrolling that works on every Windows Phone resolution?

Mario game that uses parallax scrolling: http://www.youtube.com/watch?v=de5f3mvRyIY I want to create a Windows Phone jump-and-run game with parallax scrolling. The parallax scrolling should be like ...
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 ...
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0answers
36 views

How can I measure the weight in Farseer?

I have two different objects(star and rectangle) and I want to measure the entire weight that lies on the balance. How can I do that? Is it possible to know the entire weight that presses on the ...
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0answers
87 views

How can I increase the return from from ads?

I made a little Windows Phone game and I want to use AdRotator to show ads in the game. My game has 50 levels. Some levels take 30 seconds, other levels more than 3 minutes to complete them. Will I ...
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1answer
307 views

Monogame: Why is my sprite looking the same on every resolution?

I want that my sprite(Mario) don't look the same on every Windows Phone resolution. If I use this code, the sprite is on every resolution on the right position but it also has the same size on every ...
2
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1answer
220 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
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2answers
308 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 ...
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1answer
347 views

Was my horizontal drag performed from left to right or from right to left?

I want to determine if a horizontal drag was performed from left to right or from right to left. In addition, I want to do the same with the vertical drag. How can I do that? How can I check if the ...
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0answers
12 views

How can I move an object with the Windows Phone accelerometer? [duplicate]

I want to move an object with the Windows Phone accelerometer. If the Windows Phone device is getting tilt to the right, the object should move 50 pixel to the right. The same with the other three ...
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1answer
222 views

How can I control an object with tilt gestures?

I want an object (for example a ball) to move right when I tilt my Windows Phone device to the right. The same with the directions left, up and down. If the Windows Phone device isn't getting tilt in ...
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1answer
84 views

How can I move an object diagonally on Windows Phone?

I want to pull a sprite from point A(vector2) to point B(vector2) in my Windows Phone XNA game. GestureType.HorizontalDrag moves it horizontally and GestureType.VerticalDrag moves it vertically, how ...
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0answers
57 views

Simulating Windows Phone Trial mode is not working

I want to simulate a Windows Phone Trial mode. I created a little game in XNA and uploaded it as a beta on my Windows Phone Dev Center account. After that, I installed the game from my Dev Center ...
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1answer
217 views

How can I support more than one resolution/language on WP7/8?

I want that my Windows Phone game runs on the following three resolutions: 480x800, 768x1280 and 720x1280. And maybe later on 1920x1080. But in the XAP file information, it's just written ...
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vote
1answer
65 views

XNA flip SpriteBatch on click

Is there any way to make a SpriteBatch flip when its clicked, something like Android Animation? I know that spriteBatch.Draw() have SpriteEffects, but it literally flip it and I want to flip it like ...
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votes
1answer
153 views

Port a WP7 game to WP8 with Monogame

I have a full working game for WP7, I want to port it to WP8 with Monogame. I have installed Monogame and I have done all tests to see that it is working inside Visual Studio Express 2012 for Windows ...
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2answers
172 views

Custom timeout for xna wp7 Webclient [closed]

Since there is no timeout for responce in windows phone xna version of WebClient i need to implement one. The idea is to make MyWebClient derived class from WebClient with timer. But i got stuck on ...
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1answer
192 views

How can I make a clickable menu in WP 7/8?

I'm trying to make a clickable menu for my XNA Windows Phone game. If the player makes a tap gesture on a button(rectangle), something will happen. For example, the game will start if you touch the ...
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1answer
219 views

Difficulties with zoom point

I want to zoom about an arbitrary zoom point. For example, if the player tabs on a place on his windows phone display, this place(position) should get the new center of his viewport. In addition, the ...
2
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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 ...
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0answers
71 views

Certain grid lines not rendering as expected

I am drawing a simple quad (a triangle strip with 4 vertices) as the floor and then drawing an 8x8 grid over top (a collection of vertex pairs for a line list). The vertical grid lines work fine ...
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1answer
465 views

Windows Phone XAML and XNA Apps with Game Components

I am using the Windows Phone Template "Windows Phone XAML and XNA Apps" and targeting Windows Phone 7/8. Most examples show your game inheriting from Microsoft.Xna.Framework.Game and then adding ...
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 ...
1
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0answers
152 views

scale rotating boundingbox

I want to use basic rectangular collision detection. I have a rotating sprite and a method that calculates the bounding box every time in the Update() method. I simply check for intersection between ...
1
vote
1answer
114 views

colliding 2 moving and rotating sprites in xna 2d

I recently started making a game in windows phone XNA, I have a rocket in the middle that I can rotate and has a thrust to speed up in the direction it is facing and meteors coming out. The point is ...
3
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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 ...
2
votes
1answer
397 views

Why am I seeing unbounded memory usage in my WP8 game?

I recently upgraded to VS2012 and tried my game out on the new WP8 emulators. I was dismayed to find out the emulator now crashes and throws an out of memory exception during my sprite loading ...
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0answers
501 views

cocos2d-xna CCScale9Sprite usage

I'm trying to get a CCControlButton to render on my game. Using a basic CCScale9Sprite as the button's background works using the following: var myScale9Sprite = ...
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vote
1answer
220 views

Windows Phone XNA guarding storage data

For a typical windows phone game where storage files could contain high scores or in-game currency data, how does one go about protecting these files from user tampering?
2
votes
0answers
148 views

What's a simple way of sending game data between phones? [closed]

Using windows phones I need to send small amounts of data between phones in a turn based game. It's only a few bytes of data and does not need to be real time, something like in wordfeud or similar. ...
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." ...
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 ...
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vote
2answers
822 views

Mobile game textures sizes

I am developing a Windows Phone 7 game using XNA 4.0 which I plan to later port to iOS and android using Monotouch and Monodroid. My question is how to determine what texture size should I include? ...
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2answers
186 views

How do I achieve one touch one shot for WP7 game?

I want to be able to have a sprite shoot in a game for WP7. What I have at the moment is that as long as the shoot button is held down the sprite constantly shoots. How do I sort it that only one ...
1
vote
2answers
941 views

Drawing with SpriteBatch and GraphicsDevice.DrawPrimitives

I've faced with a problem when i tried to draw 2d game with SpriteBatch and GraphicsDevice.DrawUserPrimitives. I suppose that what is drawing with SpriteBatch has higher priority, because i can not ...
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 ...
5
votes
2answers
405 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). ...
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votes
2answers
422 views

Is opengl ES a necessity for developping mobile games [closed]

I learned some OpenGL ES and some shader coding. But is it really a necessity for developing Android, iOS and windows phone games? Windows phone I'm 99% sure that it is not even supported but have not ...
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. ...
1
vote
1answer
615 views

XNA Per-Polygon Collision Check

I'm working on a project in XNA for WP7 with a low-poly environment, my problem is I need to setup a working per-polygon collision check between 2 or more 3d meshes. I've checked tons of tutorials ...
0
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2answers
189 views

Drawing an animation over an already drawn screen

I am working on a XNA WP7 card game whose basic prototype is complete. In game screen, 6 cards are displayed at a time (3 for each of the two players say 1,2 and 3). If player A attacks one of player ...
1
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1answer
306 views

windows phone 7 apps marketplace paid to free

I have question about paid and free + ad-based apps/games in wp7 marketplace, can I publish my app as paid version initially and later(after a month or so) can i publish the same app/game as free + ad ...
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
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
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 ...
1
vote
2answers
423 views

Loss of texture detail in XNA (Banding 16 bit issue)

I'm loading in a background texture for my game, it's not vert detailed, it's just there too add some variance. The problem is that there looks like a large reduction in detail. I've included images ...
1
vote
2answers
750 views

Random position of object in foreach loop

i need help with some "scary" thing. I'm creating some objects in foreach loop. Each object has implemented in Update function random change of position. But while i'm creating this objects in foreach ...
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 ...
1
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2answers
2k views

Position sprite at center of screen

I am trying to get a sprite to position itself at the center of the screen but nothing seems to be working for me. I'm trying Viewport viewport = graphics.GraphicsDevice.Viewport; logoPosition = new ...
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 ...
0
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1answer
344 views

How many update and draw calls can a windows phone suppport

I'm making a Windows Phone game (XNA 4.0) which requires a lot of activity on the screen. It's working well for now. But what I am concerned about is that it uses a lot of sprites and many of them as ...