I’ve been trying to make a space invaders clone in python, but when I try to move player in circle-shaped path, it slides off a bit over time.

I’ve already tried changing image x and y through sin and cos functions, but it doesn’t seem to work
Here is my code:

import pygame 
import math
pygame.init()

class Player():
    def __init__(self,x,y,width,height,image):
        self.original_image = pygame.image.load(image)
        self.image = pygame.transform.scale(self.original_image, (width, height))  
        self.rotated_image = self.image
        self.rect = self.image.get_rect()
        self.rect.x = x 
        self.rect.y = y 
        self.width = width 
        self.height = height 
    def move(self, angle, length):
        self.rect.x += length * math.sin(math.radians(angle))
        self.rect.y -= length * math.cos(math.radians(angle))
        self.rotated_image = pygame.transform.rotate(self.image, -angle-90)



    


window = pygame.display.set_mode((750, 750))


player = Player(375, 630, 40, 48, 'player.png') #basic green arrow
dir = None
cangle = -90

clock = pygame.time.Clock()
game = True

while game:

    window.fill((0,0,0))

    pygame.draw.circle(window, (255,255,255), (375, 343.5), 286.5, 1)
    
    window.blit(player.rotated_image, (player.rect.x - player.rect.width/2, player.rect.y-player.rect.height/2))  

    keys = pygame.key.get_pressed()
    if dir:
        cangle += dir
        player.move(cangle, dir * 5)

    

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game = False
        if event.type == pygame.MOUSEBUTTONDOWN:
            if event.button == 3:
                if dir == 1:
                    dir = -1
                elif dir == -1:
                    dir = 1
                else:
                    dir = 1

    clock.tick(600) #supposed to be 60, but I put 600 so inaccuracy is easier to find
    pygame.display.update()

pygame.quit()

This is where player turns to be after a while
Thank you!