import pygame
import math


def get_angle(p1, p2):
    dx = p2[0] - p1[0]
    dy = p2[1] - p1[1]
    rads = math.atan2(-dy, dx)
    rads %= 2 * math.pi
    degs = math.degrees(rads)
    return degs


class Fahrzeug(pygame.sprite.Sprite):
    def __init__(self, x, y):
        super().__init__()
        self.speed = 1
        self.dest_x = x
        self.dest_y = y
        self.direction = pygame.math.Vector2(0, -1)
        self.angle = 0
        self.Tank = 250

    def update(self):
        self.move()

        if self.rect.centerx != self.dest_x or self.rect.centery != self.dest_y:
            if self.Tank > 0:
                self.Tank -= 0.1
            self.angle = get_angle((self.rect.centerx, self.rect.centery), (self.dest_x, self.dest_y)) - 90

        def move(self):
            pass

    def dest(self, pos):
        self.dest_x, self.dest_y = pos