first game

import turtle
import os
import time

#set up the screen
wn = turtle.Screen()
wn.bgcolor("black") #background colour
wn.title("PvP 1.0") #title on the screen

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

#Variables
winner = '0'
B1D = '0'

#player1
player1 = turtle.Turtle()
player1.color("blue")
player1.shape("triangle")
player1.penup()
player1.speed(0)
player1.setposition(-280, -280)
player1.setheading(90)

player1speed = 15

#player2
player2 = turtle.Turtle()
player2.color("purple")
player2.shape("square")
player2.penup()
player2.speed(0)
player2.setposition(280, -280)
player2.setheading(0)

#create enemy
enemy = turtle.Turtle()
enemy.color("red")
enemy.shape("circle")
enemy.penup()
enemy.speed(0)
enemy.setposition(-200, 250)
enemy.hideturtle()

#bullet for P1
bullet1 = turtle.Turtle()
bullet1.color("red")
bullet1.shape("square")
bullet1.penup()
bullet1.speed(0)
bullet1.shapesize(0.5, 0.5)
bullet1.setheading(0)
bullet1.hideturtle()

bulletspeed1 = 30
bulletstate1 = "ready"


#score system!
scoreP1 = 100

scoreP1_pen = turtle.Turtle()
scoreP1_pen.speed(0)
scoreP1_pen.color("white")
scoreP1_pen.penup()
scoreP1_pen.setposition(-290, 300)
scorestring = "P1 HP: %s" %scoreP1
scoreP1_pen.write(scorestring, False, align="left", font=("Arail", 18, "normal"))
scoreP1_pen.hideturtle()

scoreP2 = 100

scoreP2_pen = turtle.Turtle()
scoreP2_pen.speed(0)
scoreP2_pen.color("white")
scoreP2_pen.penup()
scoreP2_pen.setposition(160, 300)
scorestring = "P2 HP: %s" %scoreP2
scoreP2_pen.write(scorestring, False, align="left", font=("Arail", 18, "normal"))
scoreP2_pen.hideturtle()


#player1 movement
def upP1():
    player1.sety(player1.ycor()+20)
    player1.setheading(90)
def downP1():
    player1.sety(player1.ycor()-20)
    player1.setheading(30)
def leftP1():
    player1.setx(player1.xcor()-20)
    player1.setheading(180)
def rightP1():
    player1.setx(player1.xcor()+20)
    player1.setheading(0)

#player2 movement
def upP2():
    player2.sety(player2.ycor()+20)
    player2.setheading(90)
def downP2():
    player2.sety(player2.ycor()-20)
    player2.setheading(30)
def leftP2():
    player2.setx(player2.xcor()-20)
    player2.setheading(180)
def rightP2():
    player2.setx(player2.xcor()+20)
    player2.setheading(0)

def firebullet1():
    global bulletstate1
    global B1D
    if bulletstate1 == 'ready':
        bulletstate1 = 'fire'
        if player1.heading() == 90:
            bullet1.setheading(90)
            XP1 = player1.xcor()
            YP1 = player1.ycor() + 10
            bullet1.setposition(XP1, YP1)
            bullet1.showturtle()
            B1D = 'up'

        if player1.heading() == 30:
            bullet1.setheading(30)
            XP1 = player1.xcor()
            YP1 = player1.ycor() - 10
            bullet1.setposition(XP1, YP1)
            bullet1.showturtle()
            B1D = 'down'

        if player1.heading() == 180:
            bullet1.setheading(180)
            XP1 = player1.xcor() - 10
            YP1 = player1.ycor()
            bullet1.setposition(XP1, YP1)
            bullet1.showturtle()
            B1D = 'left'

        if player1.heading() == 0:
            bullet1.setheading(0)
            XP1 = player1.xcor() + 10
            YP1 = player1.ycor()
            bullet1.setposition(XP1, YP1)
            bullet1.showturtle()
            B1D = 'right'

def P1heading():
    global p1heading
    p1heading = player1.heading
    if p1heading == 90:
        print("WIP")


#if collided
def collisionCheck_P1_P2():
    global crashed
    crashed = False
    player1X = player1.xcor()
    player1Y = player1.ycor()
    player2X = player2.xcor()
    player2Y = player2.ycor()
    player1Pos = (int(player1X), int(player1Y))
    player2Pos = (int(player2X), int(player2Y))
    if player1Pos == player2Pos:
        crashed = True
    return crashed

def collisionCheck_B1_P2():
    global crashed
    crashed = False
    player2X = player2.xcor()
    player2Y = player2.ycor()
    bullet1X = bullet1.xcor()
    bullet1Y = bullet1.yxor()
    bullet1Pos = (int)bullet1X), (int)bullet1Y)
    player2Pos = (int)player2X), (int)player2Y)
    if bullet1Pos == player2Pos:
        crashed = 'B1P2'
    return crashed

turtle.listen()
#P1
turtle.onkey(leftP1, "Left")
turtle.onkey(rightP1, "Right")
turtle.onkey(upP1, "Up")
turtle.onkey(downP1, "Down")
turtle.onkey(firebullet1, "e")
#P2
#turtle.onkey(firebullet2, "space")
turtle.onkey(leftP2, "a")
turtle.onkey(rightP2, "d")
turtle.onkey(upP2, "w")
turtle.onkey(downP2, "s")

#main game loop
while True:

    #Keep system going
    enemy.setposition(0, 0)

    collisionCheck_P1_P2()
    if crashed == True:
        #P1
        scoreP1 -= 25
        scorestring = "P1 HP: %s" %scoreP1
        scoreP1_pen.clear() #UPDATE SCORE
        scoreP1_pen.write(scorestring, False, align="left", font=("Arail", 18, "normal"))
        #P2
        scoreP2 -= 25
        scorestring = "P1 HP: %s" %scoreP1
        scoreP2_pen.clear() #UPDATE SCORE
        scoreP2_pen.write(scorestring, False, align="left", font=("Arail", 18, "normal"))
        print("connected")
        player1.setposition(-280, -280)
        player2.setposition(280, -280)
    else:
        print("not connected!")

    collisionCheck_B1_P2()
    if crashed == 'B2P2':
        scoreP1 -= 10
        scorestring = "P1 HP: %s" %scoreP1
        scoreP1_pen.clear() #UPDATE SCORE
        scoreP1_pen.write(scorestring, False, align="left", font=("Arail", 18, "normal"))


    if scoreP1 == 0 or scoreP2 == 0:
        print("Game Over!")
        if scoreP1 == 0:
            winner = 'Player 2'
            print("The winner is " + winner + "!")
            break
            turtle.done()
        else:
            winner = 'Player 1'
            print("The winner is " + winner + "!")
            break
            turtle.done()

    if bulletstate1 == 'fire':
        if B1D == 'up':
            YP1 = bullet1.ycor()
            YP1 += bulletspeed1
            bullet1.sety(YP1)

        if B1D == 'down':
            YP1 = bullet1.ycor()
            YP1 -= bulletspeed1
            bullet1.sety(YP1)

        if B1D == 'left':
            XP1 = bullet1.xcor()
            XP1 -= bulletspeed1
            bullet1.setx(XP1)

        if B1D == 'right':
            XP1 = bullet1.xcor()
            XP1 += bulletspeed1
            bullet1.setx(XP1)

    if bullet1.ycor() > 275:
        bullet1.hideturtle()
        bulletstate1 = 'ready'

    if bullet1.ycor() < -275:
        bullet1.hideturtle()
        bulletstate1 = 'ready'

    if bullet1.xcor() > 275:
        bullet1.hideturtle()
        bulletstate1 = 'ready'

    if bullet1.xcor() < -275:
        bullet1.hideturtle()
        bulletstate1 = 'ready'
















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