How to lock mouse in window without mousemovement?

**JoKa** · 14th December 2006, 08:55 AM

Is this possible? I created a custom mouse movement using the "Mouse Object" extension, so I can't use MMF's built-in mouse movement to hold the mouse within the window.

Instead, I check if the mouse gets close to the window borders and set it's position back to (Border-80 pixels). That works, but not perfect. If the player moves the mouse very fast and clicks at the wrong moment, then the mouse will slip out of the window for a fraction of a second. If, for example, the windows explorer lies under the game window, the player could drag and drop a folder without even noticing it. To prevent this, I have set the window maximized.

But I'd be glad if there's a better way to tame the mouse

**Dynasoft** · 14th December 2006, 09:24 AM

It's never a good idea to lock the mouse to a window, it annoys people if they can't get out easily (to click on a chat window and talk to their mate for example).

Generally games compromise by making the mouse return to normal if you pause the game, and make the game really easy to pause (eg the escape key).

I don't have any ideas about how to lock the mouse to the window using the mouse object (I assume you're changing the cursor?) but a common technique is to hide the mouse, record the amount of mouse movement from one frame to the next and add that to the position of an active, then move the mouse to the centre of the window. This means it would only be possible to have the mouse escape the window if the player could move it faster than the width of your window in one frame.

**JoKa** · 14th December 2006, 09:35 AM

The player sprite is stuck to the mouse pointer, while the mouse itself is invisible, so I can't record the distance only.

Of course, you can pause the game easily by pressing any key. While the game is paused, the mouse becomes visible again and is no longer limited to the window. The game also enters paused mode automatically if it's window loses focus, just in case the player uses Alt-Tab or something like this.