I'm working with a game in C# XNA and I want to draw a texture and a position in the middle of the screen. The thing is that I want the viewport to move around and not the player. So for example: If I push right I want the viewport to move right and keep the player in the middle of the screen.
Since GraphicsDevice.Viewport.X and Y are not variables, I have no idea how to do this.
the best way would be to integrate a camera class there are many tutorials for that
i assume you will be using it for a 2d game...so :
http://adambruenderman.wordpress.com/2011/04/05/create-a-2d-camera-in-xna-gs-4-0/
http://www.david-amador.com/2009/10/xna-camera-2d-with-zoom-and-rotation
Now I know how to do it :)
In SpriteBatch.Begin() you type:
spriteBatch.Begin(SpriteSortMode.Texture,
null,null,null,null,null,
Matrix.CreateTranslation(X,Y,0));
Since it is a 2D game I'm working on the Z axis is 0.
X and Y are where you want your camera to be, so for my example I can type:
Player_position.X - drawOffSet
Player_position.Y - drawOffSet
But thanks for the help anyway
Viewport object, which isn't nearly as basic. The lesson here is: when you have no idea how to do something, don't assume it must be done in this particular way and then ask how to do that particular thing - just ask about the original fundamental thing you want to do.
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Commented
Apr 20, 2012 at 23:57
if you want to move your viewport you only have to do:
GraphicsDevice.Viewport = new Viewport(X,Y,WIDTH, HEIGHT);
but I'm not sure that it is what you need... usually is used to work with a camera, so the viewport is fixed and you change the camera... like if you were watching tv...
the tv, (your viewport), is fixed..., but the camera is what you moves to show other parts of the film's world.
I haven't worked with xna in a while now, but aren't you supposed to update the camera coordinates and update the viewport with the camera?
