# ANSI escae code for colours:
#RED = "e[0;31m"
#BLUE = "e[34mBlue"
#YELLOW= "e[33mYellow"
#BACKGROUND_COLOUR = "e[30m"

instead of RGB:
# RGB colours:
RED = (255, 0, 0))
BLUE = (0, 0, 255))
YELLOW= (204, 204, 0)
BACKGROUND_COLOUR = (0, 0, 0))

import pygame
import random
import sys
import colorama

pygame.init()

WIDTH = 800
HEIGHT = 600

# ANSI escae code for colours:
#RED = "e[0;31m"
#BLUE = "e[34mBlue"
#YELLOW= "e[33mYellow"
#BACKGROUND_COLOUR = "e[30m"

# RGB colours:
RED = (255, 0, 0))
BLUE = (0, 0, 255))
YELLOW= (204, 204, 0)
BACKGROUND_COLOUR = (0, 0, 0))

player_size = 50
player_pos = [WIDTH/2, HEIGHT - 2 * player_size]


enemy_size = 50
enemy_pos = [random.randint(0, WIDTH - enemy_size), 0]
enemy_list = [enemy_pos]

SPEED = 10

screen = pygame.display.set_mode((WIDTH,HEIGHT))

# gameloop

game_over = False

score = 0

clock = pygame.time.Clock()

myFont = pygame.font.sysFont("monospace", 35)

def set_level(score,SPEED):
    if score < 20:
        SPEED = 5
    elif score < 40:
        SPEED = 8
    elif score < 60:
        SPEED = 12
    else:
        SPEED = 18
    return SPEED

# SPEED = score / 5 +1
# return SPEED

def drop_enemies(enemy_list):
    delay = random.random()
    if len(enemy_list) < 10 and delay < 0.1:
    x_pos = random.randint(0, WIDTH - enemy_size)
        y_pos = 0
        enemy_list.append([x_pos, y_pos])


def draw_enemies(enemy_list):
    for enemy_pos in enemy_list:
        pygame.draw.rect(screen, BLUE, (enemy_pos[0], enemy_pos[1],
        enemy_size, enemy_size))