import pygame
import numpy as np

class Actor:
    def __init__(self, world):
        self.world = world
        self.pos = np.array([64.0, 64.0])
        self.size = np.array([48.0, 48.0])
        self.color = pygame.Color(0, 0, 255)
        self.speed = 192.0

    def draw(self, screen):
        pygame.draw.rect(screen, self.color, (
            self.pos[0] - self.size[0]/2, 
            self.pos[1] - self.size[1]/2,
            self.size[0],
            self.size[1]
        ))

    def update(self, dt):
        pass

    def phy_update(self, dt):
        pass