Xna custom mouse not allowing me to move its sprite past certain bounds

Question

I have written a Custom mouse, with a Custom sprite, using MouseState, and getting the X and Y variables. However i also have a camera that i wrote, and this allows me to leave the initial box. One sprite that can freely move this area, but my mouse gets stuck in a box that seems proportional to my screen resolution some times.

  //This is where i create the Texture, Vector and MouseState of the Custom Cursor 
Texture2D Mouse_texture;
MouseState mouse_state;    
Vector2 Mouse_pos;

  // This is my Resolution and i have IsFullScreen = true
graphics.PreferredBackBufferWidth = 1600;
graphics.PreferredBackBufferHeight = 900;

  // Loading the Texture
Mouse_texture = Content.Load<Texture2D>("mouse"); 

  // Getting the current mouse State this is in the update function 
mouse_state = Mouse.GetState();

  // How i set the mouse position Simple Vector2 stuff and i never do anything else
  //   to handle the the position of the mouse 
Mouse_pos = new Vector2(mouse_state.X, mouse_state.Y);

  // and this is me Drawing it
spriteBatch.Draw(Mouse_texture, Mouse_pos, Color.White);

If you need any more code let me know

Answer 1

This sounds like an issue of not translating mouse coordinates / screen coordinates into world coordinates.

The easiest way you could solve this that also comes with its own limitations is to calculate your mouse draw position based on the camera position and the mouse state. Something like:

Mouse_pos = new Vector2(mouse_state.X + Camera.Position.X, mouse_state.Y + Camera.Position.Y);

The exact code for your implementation will likely be slightly different but you should be able to get the gist of it from this snippet.

There are much more versatile solutions than this which include projecting screen coordinates into world coordinates and get away from using pixels as the units for your world altogether. This is going to be a much more elegant solution that you may want to look into, and perhaps someone else could post an answer on, but to keep things simple you can definitely start with what I've shown above.

This solution should also solve the problem if you are shifting the camera negatively along the axis instead of positively.

Here's an image to help better illustrate the problem and the solution: