[EDIT] FILE: planet_and_moon.cpython-311.pyc
� !A?h � � � d Z ddlmZmZmZmZ dZ G d� de� � Z G d� de� � Z d� Z e d k r e � � e� � d S d S ) a� turtle-example-suite: tdemo_planets_and_moon.py Gravitational system simulation using the approximation method from Feynman-lectures, p.9-8, using turtlegraphics. Example: heavy central body, light planet, very light moon! Planet has a circular orbit, moon a stable orbit around the planet. You can hold the movement temporarily by pressing the left mouse button with the mouse over the scrollbar of the canvas. � )�Shape�Turtle�mainloop�Vec2D� c � � e Zd Zd� Zd� Zd� ZdS )�GravSysc �0 � g | _ d| _ d| _ d S )Nr g{�G�z�?)�planets�t�dt)�selfs �3/usr/lib64/python3.11/turtledemo/planet_and_moon.py�__init__zGravSys.__init__ s � ��� ��������� c �B � | j D ]}|� � � �d S )N)r �init)r �ps r r z GravSys.init s, � �� � � �A� �F�F�H�H�H�H� � r c � � t d� � D ]5}| xj | j z c_ | j D ]}|� � � ��6d S )Ni' )�ranger r r �step)r �ir s r �startz GravSys.start sX � ��u� � � � �A� �F�F�d�g� �F�F��\� � ��������� � � r N)�__name__� __module__� __qualname__r r r � r r r r sA � � � � � �� � �� � �� � � � r r c �& � e Zd Zd� Zd� Zd� Zd� ZdS )�Starc �4 � t j | |�� � | � � � || _ | � |� � || _ |j � | � � || _ | � d� � | � � � d S )N)�shape�user) r r �penup�m�setpos�vr �append�gravSys� resizemode�pendown)r r$ �xr& r( r! s r r z Star.__init__' s� � ����E�*�*�*�*� � � � � � ���� � � �A��������� � �t�$�$�$� �� � ���� � � � � � �����r c � � | j j }| � � � | _ | j d|z | j z z | _ d S )N� �?)r( r �acc�ar& �r r s r r z Star.init1 s6 � � �\�_�����������#�b�&���-�'����r c �� � t dd� � }| j j D ]Y}|| k rQ|� � � | � � � z }|t |j z t |� � dz z |z z }�Z|S )Nr � )�Vecr( r �pos�Gr$ �abs)r r/ �planetr& s r r. zStar.acc5 sp � � ��!�H�H���l�*� .� .�F���~�~��J�J�L�L������+���a���j��Q�����*�A�-�-����r c � � | j j }| � | � � � || j z z � � | j j � | � � dk r8| � | � | j j d � � � � | � � � | _ | j || j z z | _ d S )Nr ) r( r r% r4 r& r �index� setheading�towardsr. r/ r0 s r r z Star.step< s� � � �\�_�� � � �D�H�H�J�J��D�F��*�+�+�+� �<� � %� %�d� +� +�q� 0� 0� �O�O�D�L�L�� �)=�a�)@� A� A� B� B� B����������"�T�V�)�#����r N)r r r r r r. r r r r r r & sP � � � � � � � � �(� (� (�� � �$� $� $� $� $r r c �F � t � � } | � � � | � � � � dd� � | � � � | � � � | � d� � | � d� � | � � � | � dd� � | � � � | � � � }| � � � | � dd� � | � � � | � � � }t d� � }|� |d� � |� |d� � | � � � � d|� � | � � � � d d� � t � � }t! d t# dd� � t# dd � � |d � � }|� d � � |� d� � |� � � t! dt# dd� � t# dd� � |d� � }|� d� � |� d� � t! d t# dd� � t# dd� � |d� � }|� d� � |� d� � |� � � |� � � dS )Nr � �Z � �compound�orange�bluer7 � i@B g ��circle�yellowg������?i�0 �� �� �greeng�������?�� i' r- zDone!)r �reset� getscreen�tracer�ht�pu�fd�lt� begin_polyrD �end_poly�get_polyr � addcomponent�register_shaper r r3 �color� shapesize�pencolorr r )�s�m1�m2� planetshape�gs�sun�earth�moons r �mainra F sh � ����A��G�G�I�I�I��K�K�M�M����1� � � ��D�D�F�F�F��D�D�F�F�F��D�D��G�G�G��D�D��H�H�H��L�L�N�N�N��H�H�Q������J�J�L�L�L� ��� � �B��L�L�N�N�N��H�H�Q�s�O�O�O��J�J�L�L�L� ��� � �B�� �#�#�K�� � �R��)�)�)�� � �R��'�'�'��K�K�M�M� � ��;�7�7�7��K�K�M�M����1� � � � ���B� �w��A�a���#�a��+�+�r�8� <� <�C��I�I�h�����M�M�#�����F�F�H�H�H� ���C�� � �C��#�J�J��H� =� =�E� �N�N�7���� �O�O�C���� ��3�s�1�:�:�s�1�S�z�z�2�x� 8� 8�D��M�M�&�����N�N�3�����G�G�I�I�I��H�H�J�J�J� �7r �__main__N) �__doc__�turtler r r r r3 r5 �objectr r ra r r r r �<module>rf s� ��� �$ 9� 8� 8� 8� 8� 8� 8� 8� 8� 8� 8� 8��� � � � � �f� � � � $� $� $� $� $�6� $� $� $�@%� %� %�N �z����D�F�F�F� �H�J�J�J�J�J� �r
SAVE
CANCEL