set(d,1);
screentosphere(mouse.x,mouse.y, h,v);
spheretospace(h,v,d, x,y,z);
calc(fh, floorhs.floorheight_cm - view.ty);
calc(x, x*fh/y);
calc(z, z*fh/y);
set(floorhs, tx=calc(view.tx + x), tz=calc(view.tz + z), ty=calc(view.ty + fh));
targeths.getcenter(target_h, target_v);
calc(floorhs.ry, target_h + 0);
copy(hs, hotspot[floorspot]);
tween(hs.alpha, 1);
asyncloop(caller.hovering,
place_floorspot_at_mouse_pos(get(caller), get(hs));
,
tween(hs.alpha, 0, 0.2, default, null,
place_floorspot_at_mouse_pos(get(caller), get(hs))
);
);