Creating a GUI: Adding the mouse

The correct way to access the mouse position in Cosmos is through the MouseManager class. To initialise the mouse, set both the MouseManager.ScreenWidth and MouseManager.ScreenHeight to the correct values. Then the position of the mouse can be determined by getting the values MouseManager.X and MouseManager.Y.

Creating a mouse is quite difficult because Cosmos has removed the pre-built mouse device. We have to make our own mouse device, which is hard for newcomers. But, to facilitate our work, we'll download a pre-built mouse device. You'll then have to place it in your project, change the namespace, and use it. Let's do that now!

Drawing a mouse is now very simple. Add a reference to the Mouse device, then in our previous InitGUI() function, place this code:

Mouse m = new Mouse(800, 600); // Note that you'll have to specify the screen resolution (width and height).
bool OK = true; // Directly using true will cause debugging issues, and even if you disable it, (to make the GUI not lag) it's still very useful to just disable the GUI.
while (OK)
{
   m.Draw(driver); // Draws the mouse with the specified driver
   driver.Update(0, 0, Width, Height); // Updates the screen as a whole to reduce flicker.
}

Well done! You now have a 100% working and flawlessly moving mouse. ~ ShiningLea