Final exam version

UML_classes.puml

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+@startuml
+skinparam classAttributeIconSize 0
+
+class SpaceObject {
+    x
+    y
+    radius
+    color
+    mass
+    draw()
+}
+
+class Star {
+    name
+    planets
+    set_position()
+    add_planet()
+    update()
+    draw()
+}
+
+class Planet {
+    star
+    orbit_number
+    orbit_radius
+    angle
+    angular_speed
+    linear_speed
+    direction
+    calculate_position()
+    update()
+    shift_angle()
+    draw()
+}
+
+class SolarSystem {
+    width
+    height
+    stars
+    show_orbits
+    paused
+    create_system()
+    get_direction()
+    resize()
+    update()
+    prevent_planet_intersections()
+    draw()
+    toggle_pause()
+    toggle_orbits()
+    get_all_objects()
+    get_total_mass()
+    get_planet_count()
+}
+
+class SolarApp {
+    system
+    screen
+    clock
+    font
+    resize_window()
+    draw_text()
+    draw_info()
+    run()
+}
+
+class solar_input {
+    handle_events()
+    save_system_to_file()
+}
+
+SpaceObject <|-- Star
+SpaceObject <|-- Planet
+SolarSystem *-- Star
+Star *-- Planet
+SolarApp --> SolarSystem
+SolarApp ..> solar_input
+
+@enduml