API reference:
ComponentReference
Controller
ControllerProtocol
OnUpdateProcessor
ProcessorReference
Prototype
add_component()
controller()
delete()
get_component()
get_components()
has_component()
remove_component()
DirectoryPopulatorRule
DirectoryResourcePopulator
project_path()
EventDispatcher
EventHandler
event_handler()
Loop
Quit
SimpleLoop
SwitchWorld
quit_loop()
switch()
Mat3
Mat4
Vec2
Vec3
Vec4
clamp()