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 outside the range of the sensor trying to touch the object on the game screen..
Is there anyway I can scale the skeletal values so that the users can easily touch objects on the screen without having to stretch or bend too much?
You can get a position relative to the screen resolution, then it's just a matter of tweaking the values to find what works.
From http://kinectxna.blogspot.ie/2012/02/tutorial-5-skeletal-tracking.html :
foreach (Joint joint in skeleton.Joints)
{
Vector2 position = new Vector2((((0.5f * joint.Position.X) + 0.5f) * (resolution.X)), (((-0.5f * joint.Position.Y) + 0.5f) * (resolution.Y)));
spriteBatch.Draw(img, new Rectangle(Convert.ToInt32(position.X), Convert.ToInt32(position.Y), 10, 10), Color.White);
}
Instead of drawing to this position you could use it in your update logic. The values aren't perfect but they should get you on the right track.
Edit:
If in fullscreen you'll want to find the current resolution of the user's monitor. You can find it using:
GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Width GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Height
Just put this in place of resolution in the above code and you should be good to go.
If this doesn't work try:
graphics.PreferredBackBufferWidth
graphics.PreferredBackBufferHeight
Where graphics is the GraphicsDeviceManager (declared in the game's constructor when creating a new XNA game). Depending on the scaling of the game one or the other of these should work.
