Traj 0 Newbie Poster
import turtle
import os
import math
import random
import pygame

#set up the screen
wn = turtle.Screen()
wn.bgcolor("black")
wn.title("Space invaders")
wn.bgpic("space_invaders_backgrounds.gif")
pygame.init()

#Register the shapes
turtle.register_shape("ship.gif")
turtle.register_shape("Enemy.gif")

#Drawing my border
border_pen = turtle.Turtle()
border_pen.speed(0)
border_pen.color("white")
border_pen.penup()
border_pen.setposition(-300,-300)
border_pen.pendown()
border_pen.pensize(3)
for side in range(4):
    border_pen.fd(600)
    border_pen.lt(90)
border_pen.hideturtle()

#Set the score to 0
score = 0

#Draw the score
score_pen = turtle.Turtle()
score_pen.speed(0)
score_pen.color("white")
score_pen.penup()
score_pen.setposition(-290, 280)
scorestring = "Score: %s" %score
score_pen.write(scorestring, False, align="left", font=("Arial", 14, "normal"))
score_pen.hideturtle()

#create the player turtle
player = turtle.Turtle()
player.color("blue")
player.shape("ship.gif")
player.penup()
player.speed(0)
player.setposition(0, -250)
player.setheading(90)

playerspeed = 18

#Choose a number of enemies
number_of_enemies = 6
#Create and empty list of enemies
enemies = []

#Add enemies to the list
for i in range(number_of_enemies):
    #Create the enemy
    enemies.append(turtle.Turtle())

for enemy in enemies:
    enemy.color("red")
    enemy.shape("Enemy.gif")
    enemy.penup()
    enemy.speed(0)
    x = random.randint(-200, 200)
    y = random.randint(100, 250)
    enemy.setposition(x,y)

enemyspeed = 3

#Create the player's bullet
bullet = turtle.Turtle()
bullet.color("yellow")
bullet.shape("triangle")
bullet.penup()
bullet.speed(0)
bullet.setheading(90)
bullet.shapesize(0.5, 0.5)
bullet.hideturtle()

bulletspeed = 25

#Define bullet state
#ready - ready to fire
#fire - bullet is firing
bulletstate = "ready"

#Move the player left and right
def move_left():
    x = player.xcor()
    x -= playerspeed
    if x < -280:
        x = - 280
    player.setx(x)

def move_right():
    x = player.xcor()
    x += playerspeed
    if x > 280:
        x = 280
    player.setx(x)

def fire_bullet():
    #Declare bulletstate as a global if needs changing
    global bulletstate
    if bulletstate == "ready":
        bulletstate = "fire"
        #Move the bullet just above the player
        x = player.xcor()
        y = player.ycor() + 10
        bullet.setposition(x,y)
        bullet.showturtle()

def isCollision(t1, t2):
    distance = math.sqrt(math.pow(t1.xcor()-t2.xcor(),2)+math.pow(t1.ycor()-t2.ycor(),2))
    if distance < 15:
        return True
    else:
        return False

#Creating a pause function

def pause_game():
    pause = False
    #Main loop
    while 1:
        print("abc")
        for event in pygame.event.get():
            if event.type==pygame. KEYUP:
                if event.key==K_p:
                    pause = False
                    break
        while pause == False:
            for event in pygame.event.get():
                if event.type==pygame.KEYUP:
                    if event.key==K_p:
                        pause = True
                #Do your game here

#Create keyboard bindings
turtle.listen()
turtle.onkey(move_left,"Left")
turtle.onkey(move_right,"Right")
turtle.onkey(fire_bullet,"space")

#Add pause handle here
turtle.onkey(pause_game,"p")

#Main game loop
while True:

    for enemy in enemies:
        #Move the enemy
        x = enemy.xcor()
        x += enemyspeed
        enemy.setx(x)

        #Move the enemy back and down
        if enemy.xcor() > 280:
            #Move all enemies down
            for e in enemies:
                y = e.ycor()
                y -= 40
                e.sety(y)
            #Change the enemy direction
            enemyspeed *= -1

        if enemy.xcor() < -280:
            #Move all enemies down
            for e in enemies:             
                y = e.ycor()
                y -= 40
                e.sety(y)
            #Change enemy direction
            enemyspeed *= -1

        #Check for a collision between the bullet and the enemy
        if isCollision(bullet, enemy):
            #Reset the bullet
            bullet.hideturtle()
            bulletstate = "ready"
            bullet.setposition(0, -400)
            #Reset the enemy
            x = random.randint(-200, 200)
            y = random.randint(100, 250)
            enemy.setposition(x,y)
            #Update the score
            score += 10
            scorestring = "Score: %s" %score
            score_pen.clear()
            score_pen.write(scorestring, False, align="left", font=("Arial", 14, "normal"))

        if isCollision(player, enemy):
            player.hideturtle()
            enemy.hideturtle()
            print("Game over")
            break

    #Move the bullet
    if bulletstate == "fire":

        y = bullet.ycor()
        y += bulletspeed
        bullet.sety(y)
        #Save highscore in txt
        file = open("testfile.txt","w") 
        file.write(str(score))
        file.close()

    #Check to see if the bullet has gone to the top
    if bullet.ycor() > 275:
        bullet.hideturtle()
        bulletstate = "ready"

delay = input("press enter to finish")

I want p for pause, c for continue but i cant seem to do it no matter what i do, apparantly it works for MAC but now Windows, please note i am a windows user

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