enemy.py

# IMPORTS
import pygame as pg
import colors as c


class enemy:

    def __init__(self, surface, BS, BSI):
        self.surface = surface
        self.bs = BS
        self.bsi = BSI

        # for drawing the block
        self.enemyblock = pg.Surface((BS, BS))
        self.enemyblock.set_alpha(255)
        self.enemyblock.fill(c.RED)
        self.enemyblockdark = pg.Surface((BSI, BSI))
        self.enemyblockdark.set_alpha(255)
        self.enemyblockdark.fill(c.RED_DARK)

        # for deleting blocks
        self.blackblock = pg.Surface((BS, BS))
        self.blackblock.set_alpha(255)
        self.blackblock.fill(c.BLACK)

    def setPos(self, posx, posy):
        self.pos = [posx, posy]

    def getPos(self):
        return self.pos

    def isEnemy():
        return True

    def move(self, move):
        pos = self.getPos()
        self.surface.blit(self.blackblock,
                          (pos[0] * self.bs, pos[1] * self.bs))

        # update positions
        if move == 1:  # UP
            pos = [pos[0], pos[1] - 1]
        elif move == 2:  # DOWN
            pos = [pos[0], pos[1] + 1]
        elif move == 3:  # LEFT
            pos = [pos[0] - 1, pos[1]]
        elif move == 4:  # RIGHT
            pos = [pos[0] + 1, pos[1]]

        self.pos = pos

    def draw(self):
        self.surface.blit(self.enemyblock,
                          (self.pos[0] * self.bs, self.pos[1] * self.bs))
        self.surface.blit(self.enemyblockdark,
                          (self.pos[0] * self.bs + 1,
                           self.pos[1] * self.bs + 1))