Tooltips and selecting actors

Scripting Issues
6

Do it within a constantly running task in your gui class.

This is more or less what I use. (I use a CollisionHandlerQueue. If you use a CollisionHandlerEvent, then the code will look different.)

self.mx = 0
self.my = 0
self.over = None
taskMgr.add(self.guiTask)

def guiTask():
    mwn = base.mouseWatcherNode
    if mwn.hasMouse():
        mx,my = mwn.getMouse()
        if mx,my == self.mx,self.my:
            if self.over:
                self.over.onOver()
            return
        mx,my = self.mx,self.my
        over = self.getCollisions(self.mx,self.my)
        if over != self.over:
            if self.over:
                self.over.onExit()
            if over:
                over.onEnter()
        if over:
            over.onOver()

To clarify, getCollisions(x,y) is a function in my gui class that sets a picker ray to from the camera node to x,y.