Light Chasing
-------------


Follow the LED to proceed to the next state.

.. image:: light_chasing.svg
   :align: center

.. tab-set::

   .. tab-item:: Python

    .. literalinclude:: ../../../../examples/light_chasing.py
       :language: python
       :start-at: from bpod_core.

   .. tab-item:: JSON

    .. code-block:: json

       {
         "states": {
           "Port1Active1": {
             "transitions": {
               "Port1_High": "Port2Active1"
             },
             "actions": {
               "PWM1": 255
             }
           },
           "Port2Active1": {
             "transitions": {
               "Port2_High": "Port3Active1"
             },
             "actions": {
               "PWM2": 255
             }
           },
           "Port3Active1": {
             "transitions": {
               "Port3_High": "Port1Active2"
             },
             "actions": {
               "PWM3": 255
             }
           },
           "Port1Active2": {
             "transitions": {
               "Port1_High": "Port2Active2"
             },
             "actions": {
               "PWM1": 255
             }
           },
           "Port2Active2": {
             "transitions": {
               "Port2_High": "Port3Active2"
             },
             "actions": {
               "PWM2": 255
             }
           },
           "Port3Active2": {
             "transitions": {
               "Port3_High": ">exit"
             },
             "actions": {
               "PWM3": 255
             }
           }
         }
       }

   .. tab-item:: YAML

    .. code-block:: yaml

       states:
         Port1Active1:
           transitions:
             Port1_High: Port2Active1
           actions:
             PWM1: 255
         Port2Active1:
           transitions:
             Port2_High: Port3Active1
           actions:
             PWM2: 255
         Port3Active1:
           transitions:
             Port3_High: Port1Active2
           actions:
             PWM3: 255
         Port1Active2:
           transitions:
             Port1_High: Port2Active2
           actions:
             PWM1: 255
         Port2Active2:
           transitions:
             Port2_High: Port3Active2
           actions:
             PWM2: 255
         Port3Active2:
           transitions:
             Port3_High: '>exit'
           actions:
             PWM3: 255