apollo Hausaufgabe

Moon.py

@@ -0,0 +1,58 @@
+import pygame
+
+from compute import matmul, rot_2D, transpose
+from game import Game
+
+EARTH_RADIUS = 30
+MOON_RADIUS = 10
+BLACK = (0, 0, 0)
+WHITE = (255, 255, 255)
+BLUE = (0, 0, 255)
+
+
+class Moon(Game):
+    """Der Mond kreist um die Erde."""
+
+    def __init__(
+            self,
+            title: str = "Moon",
+            fps: int = 60,
+            size: tuple[int, int] = (640, 400),
+    ) -> None:
+        """Legt Startposition, Drehwinkel und Rotationsmatrix fest."""
+        super().__init__(title, fps, size)
+        self.centre = (size[0] // 2, size[1] // 2)
+
+        self.position_moon = [0.0, -150.0]
+
+        theta = 0.01
+        self.rot_moon = rot_2D(theta)
+
+    def update_game(self) -> bool:
+        """Dreht den Mond ein Stück weiter."""
+        self.update_moon_position()
+        return True
+
+    def update_moon_position(self) -> None:
+        point = transpose([self.position_moon])  # [x, y] wird zur Spalte [[x], [y]]
+        result = matmul(self.rot_moon, point)  # Ergebnis: [[x'], [y']]
+        self.position_moon = [result[0][0], result[1][0]]
+
+    def draw_game(self) -> None:
+        self.screen.fill(BLACK)
+        self.draw_earth()
+        self.draw_moon()
+        pygame.display.flip()
+
+    def draw_earth(self) -> None:
+        pygame.draw.circle(self.screen, BLUE, self.centre, EARTH_RADIUS)
+
+    def draw_moon(self) -> None:
+        moon_x = int(self.centre[0] + self.position_moon[0])
+        moon_y = int(self.centre[1] + self.position_moon[1])
+        pygame.draw.circle(self.screen, WHITE, (moon_x, moon_y), MOON_RADIUS)
+
+
+if __name__ == "__main__":
+    game = Moon()
+    game.run()