If you are searching for a specific function, most modern scripts for this game include:
Keep in mind that this is a highly simplified example and a real game would require a much more complex implementation. Undertale 3d Boss Battles Script Pastebin
# Define player class class Player: def __init__(self, x, y): self.x = x self.y = y self.health = 100 Undertale 3D Boss Battles: A Scripted Revolution 4
def update(self): # Update enemy AI and animation Undertale 3d Boss Battles Script Pastebin
def main(): pygame.init() display = (800,600) pygame.display.set_mode(display, DOUBLEBUF|OPENGL)