Vertex Docs

Scene.update()

Description: The update() method contains all game logic that must run continuously while the scene is active. This method is automatically called every frame by the GameEngine and is responsible for handling input, movement, physics, timers, and other logical operations.

Without update(), your game would render visuals but nothing would move, react, or respond to player input.

Example: Usage

from VertexEngine.scenes import Scene

class Main(Scene):
    def __init__(self, engine):
        super().__init__(engine)

    def update(self):
        # Handle input
        # Update positions
        # Run game logic
        pass

Parameters

• self — Refers to the current scene instance. It allows access to scene variables, the engine, and other systems.

Responsibilities

• Process player input
• Update entity positions and states
• Run timers, animations, and logic
• Control game rules and conditions

Returns

None. This method updates the internal state of the scene each frame.

Notes

• Called once per frame before or alongside draw()
• Should not contain drawing code
• Heavy logic should be optimized to avoid FPS drops