how do you get the location of the mouse
tylers wrote ...
2012/2/17
location of mouse
It says in the Greenfoot API . What you want to do is:
And that's all that there is to it. Wherever you need the mouse's position, just use that code.
1 2 3 4 5 | MouseInfo mouse = Greenfoot.getMouseInfo();//use this to get the x position of the mouse.mouse.getX();//use this to get the y position of the mouse.mouse.getY(); |
That's not *quite* all there is to it unfortunately. getMouseInfo() will return null if the Mouse hasn't moved since the last frame, and will cause that code to throw an error. The code I like to use looks something like this:
Where mx and my are integer variables defined to keep track of the mouse position even when it is not moving. Why this is not the default behavior I don't know.
1 2 3 4 5 | MouseInfo mouse = Greenfoot.getMouseInfo();if(mouse!=null){ mx = mouse.getX(); my = mouse.getY();} |
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