.. role:: ada(code)
    :language: ada

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Exceptions
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*Solar_System API collides!*

The purpose of this exercise is to use exceptions, for some original bodies physics.

.. figure:: img/05_1.png
    :height: 300px
    :name:

    Expected result

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Question 1
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We will start by declaring an exception :code:`Bodies_Collision` in
:file:`solar_system.adb`.

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Question 2
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Raise this exception in the :code:`Move` procedure when a collision is detected.

Run the code, an exception should be raised soon.

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Question 3
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Catch this exception in the :code:`Move_All` procedure and invert the :code:`Speed`
of the body when this happens.