import pygame

from Moon import MOON_ANGLE, Moon
from compute import rot_2D

APOLLO_DISTANCE = 40.0
APOLLO_RADIUS = 5
APOLLO_ANGLE = -2 * MOON_ANGLE
RED = (255, 0, 0)


class Apollo(Moon):
    """Apollo kreist gegenläufig mit doppelter Winkelgeschwindigkeit um den Mond."""

    def __init__(self, title="Apollo", fps=60, size=(640, 400)):
        super().__init__(title, fps, size)

    def init_positions(self):
        super().init_positions()
        self.position_apollo = (APOLLO_DISTANCE, 0.0)
        self.rot_apollo = rot_2D(APOLLO_ANGLE)

    def update_positions(self):
        super().update_positions()
        self.position_apollo = self.rotate_point(self.position_apollo, self.rot_apollo)

    def draw_scene(self):
        super().draw_scene()
        self.draw_apollo()

    def draw_apollo(self):
        position = (
            self.position_moon[0] + self.position_apollo[0],
            self.position_moon[1] + self.position_apollo[1],
        )
        pygame.draw.circle(
            self.screen, RED, self.to_screen(position), APOLLO_RADIUS
        )


if __name__ == "__main__":
    Apollo().run()