mini_arcade_core.backend
========================

.. py:module:: mini_arcade_core.backend

.. autoapi-nested-parse::

   Backend module for rendering and input abstraction.
   Defines the Backend interface and related types.
   This is the only part of the code that talks to SDL/pygame directly.



Submodules
----------

.. toctree::
   :maxdepth: 1

   /autoapi/mini_arcade_core/backend/backend/index
   /autoapi/mini_arcade_core/backend/config/index
   /autoapi/mini_arcade_core/backend/events/index
   /autoapi/mini_arcade_core/backend/keys/index
   /autoapi/mini_arcade_core/backend/sdl_map/index
   /autoapi/mini_arcade_core/backend/types/index
   /autoapi/mini_arcade_core/backend/utils/index
   /autoapi/mini_arcade_core/backend/viewport/index


Classes
-------

.. autoapisummary::

   mini_arcade_core.backend.Backend


Package Contents
----------------

.. py:class:: Backend

   Bases: :py:obj:`Protocol`


   Interface that any rendering/input backend must implement.
   mini-arcade-core only talks to this protocol, never to SDL/pygame directly.

   :ivar window (WindowProtocol): Window management interface.
   :ivar audio (AudioProtocol): Audio management interface.
   :ivar input (InputProtocol): Input management interface.
   :ivar render (RenderProtocol): Rendering interface.
   :ivar text (TextProtocol): Text rendering interface.
   :ivar capture (CaptureProtocol): Frame capture interface.


   .. py:attribute:: window
      :type:  WindowProtocol


   .. py:attribute:: audio
      :type:  AudioProtocol


   .. py:attribute:: input
      :type:  InputProtocol


   .. py:attribute:: render
      :type:  RenderProtocol


   .. py:attribute:: text
      :type:  TextProtocol


   .. py:attribute:: capture
      :type:  CaptureProtocol


   .. py:method:: init()

      Initialize the backend and open a window.
      Should be called once before the main loop.



   .. py:method:: set_viewport_transform(offset_x: int, offset_y: int, scale: float)

      Set the viewport transformation.

      :param offset_x: Horizontal offset.
      :type offset_x: int
      :param offset_y: Vertical offset.
      :type offset_y: int
      :param scale: Scaling factor.
      :type scale: float



   .. py:method:: clear_viewport_transform()

      Clear the viewport transformation (reset to defaults).