Using a Camera in 3D - Flash 3D: Animation, Interactivity, and Games - page 243

Since all of the flags are contained in movie clips that have been created inside the
scene3D movie clip, we can write a function for the user clicking on the scene (line
89). There is nothing else in the scene but the flags, so we can set up a for loop to
loop over them (line 92). We can tell which flag has been selected in line 96 by using a
movie clip hitTest() method to check whether the cursor ( _xmouse,_ymouse ) has hit
a flag.

Once the flag has been determined, the visibility of flag_txt is turned on (line 99).
After grabbing the name of the country from flagArray , it is put into the text of
flag_txt (line 100) and displayed on the screen.

// ----------------------------------------------------------
// define the background and scene actions

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// click on a flag to move the viewer towards it
scene3D.onRelease = function()
{
// loop over the objects in the scene
for (k=1; k<=numberOfObjects; k++)
{
thisObj = scene3D["object"+k];
// find the selected flag
if ( thisObj.hitTest(_xmouse,_ymouse) )
{
// turn on the selected flag message
title_mc.flag_txt._visible = true;
title_mc.flag_txt.text =
"You clicked on the flag of " + flagArray[k];
// set the viewer destination coordinates
viewer.dx = thisObj.x;
viewer.dy = thisObj.y;
viewer.dz = thisObj.z/2;
break; // break out of the loop
}
}
}

// click on background to zoom out
var back:Boolean = false;
bg_mc.onRelease = function() {back = true; }