<file-system>
<gui-element>
<gui-environment>
+ <gui-font>
<gui-image>
<gui-skin>
<gui-static-text>
drop!
end-scene
get-absolute-transformation
+ get-built-in-font
get-cursor-control
get-event-key
get-event-key-pressed
get-event-type
get-file-system
+ get-font
get-fps
get-gui-environment
get-mesh
reset-box3d!
run
set-animation-speed!
+ set-font!
set-frame-loop!
set-material!
set-material-flag!