Utilities

mouse

Global object for mouse interaction.

• mouse.pos (NvVector2) — mouse coordinates.
• mouse.left_fdown (bool) — LMB was pressed exactly in this frame (First Down).
• mouse.left_down (bool) — LMB is being held down.
• mouse.left_up (bool) — LMB was released in this frame.
• mouse.any_wheel, mouse.wheel_up, mouse.wheel_down — mouse wheel state.

keyboard

Global object for keyboard interaction.

• keyboard.is_fdown(Keys.A) — Key 'A' was pressed in this frame.
• keyboard.is_down(Keys.Space) — Spacebar is being held down.

time

Global time object.

• time.dt (float) — Delta time (time between frames). Multiply any movements by this for FPS independence.
• time.fps (int) — Current FPS.

NevuEvent

Event subscription system.

from nevu_ui import NevuEvent, EventType

def my_callback():
    print("Hovered!")

my_button.subscribe(NevuEvent(sender=my_button, function=my_callback, type=EventType.OnHover))

Available types (EventType): OnHover, OnUnhover, OnKeyDown (click), OnKeyUp, OnChange, Update, Draw.