from tkinter import *
from tkinter.font import Font
import random

def move():
#"deplacement de la balle"
    global x1, y1, dx, dy
    global xraq, yraq, temps,score, score_hold,t

    x1, y1 = x1 +dx, y1 + dy
    if x1 >460:
        x1, dx, dy = 460, -dx, dy
    if y1 >460:
        y1, dx, dy = 460, dx, -dy
        score-=1
    if x1 <10:
        x1, dx, dy = 10, -dx, dy
    if y1 <10:
        y1, dx, dy = 10, dx, -dy

    if (y1+30>=yraq):
        if x1>=xraq and x1<xraq+100:
            y1, dx, dy = yraq-30, dx, -dy
            score+=1


    can1.coords(oval1,x1,y1,x1+30,y1+30)

    global x2, y2, dx2, dy2
    x2, y2 = x2 +dx2, y2 + dy2
    if x2 >460:
        x2, dx2, dy2 = 460, -dx2, dy2
    if y2 >460:
        y2, dx2, dy2 = 460, dx2, -dy2
        score-=1
    if x2 <10:
        x2, dx2, dy2 = 10, -dx2, dy2
    if y2 <10:
        y2, dx2, dy2 = 10, dx2, -dy2

    if (y2+30>=yraq):
        if x2>=xraq and x2<xraq+100:
            y2, dx2, dy2 = yraq-30, dx2, -dy2
            score+=1

    can1.coords(oval2,x2,y2,x2+30,y2+30)

    global x3, y3, dx3, dy3
    x3, y3 = x3 +dx3, y3 + dy3
    if x3 >460:
        x3, dx3, dy3 = 460, -dx3, dy3
    if y3 >460:
        y3, dx3, dy3 = 460, dx3, -dy3
        score-=1
    if x3 <10:
        x3, dx3, dy3 = 10, -dx3, dy3
    if y3 <10:
        y3, dx3, dy3 = 10, dx3, -dy3

    if (y3+30>=yraq):
        if x3>=xraq and x3<xraq+100:
            y3, dx3, dy3 = yraq-30, dx3, -dy3
            score+=1

    can1.coords(oval3,x3,y3,x3+30,y3+30)

    global x4, y4, dx4, dy4
    x4, y4 = x4 +dx4, y4 + dy4
    if x4 >460:
        x4, dx4, dy4 = 460, -dx4, dy4
    if y4 >460:
        y4, dx4, dy4 = 460, dx4, -dy4
        score-=1
    if x4 <10:
        x4, dx4, dy4 = 10, -dx4, dy4
    if y4 <10:
        y4, dx4, dy4 = 10, dx4, -dy4

    if (y4+30>=yraq):
        if x4>=xraq and x4<xraq+100:
            y4, dx4, dy4 = yraq-30, dx4, -dy4
            score+=1

    can1.coords(oval4,x4,y4,x4+30,y4+30)

    # deplacement raquette
    global draq,raquette

    yraq+=draq
    if yraq<5:
        yraq=5
        draq=0
    if yraq>395:
        yraq=395
        draq=0

    can1.move(raquette, draq,-0)

    # collision

    # balle 1 avec balle2
    if(abs(x1-x2)<30 and abs(y1-y2)<30):
        dx, dy = random.randint(-15,15),random.randint(-15,15)
        dx2, dy2 = random.randint(-15,15),random.randint(-15,15)

    # balle 1 avec balle 3
    if(abs(x1-x3)<30 and abs(y1-y3)<30):
        dx, dy = random.randint(-15,15),random.randint(-15,15)
        dx3, dy3 = random.randint(-15,15),random.randint(-15,15)

    # balle 1 avec balle 4
    if(abs(x1-x4)<30 and abs(y1-y4)<30):
        dx, dy = random.randint(-15,15),random.randint(-15,15)
        dx4, dy4 = random.randint(-15,15),random.randint(-15,15)


    # balle 2 avec balle 3
    if(abs(x2-x3)<30 and abs(y2-y3)<30):
        dx2, dy2 = random.randint(-15,15),random.randint(-15,15)
        dx3, dy3 = random.randint(-15,15),random.randint(-15,15)

    # balle 2 avec balle 4
    if(abs(x2-x4)<30 and abs(y2-y4)<30):
        dx2, dy2 = random.randint(-15,15),random.randint(-15,15)
        dx4, dy4 = random.randint(-15,15),random.randint(-15,15)


    # balle 3 avec balle 4
    if(abs(x4-x3)<30 and abs(y4-y3)<30):
        dx4, dy4 = random.randint(-15,15),random.randint(-15,15)
        dx3, dy3 = random.randint(-15,15),random.randint(-15,15)


    if flag >0:
        fen1.after(20,move) # => boucler, apres 20 millisecondes


    # gestion temps,   on passe ici toutes les 20ms...

    t+=1
    if t>=50:   # soit 50x20ms=1s
        t=0
        temps-=1
        can1.create_text(80,50, text=str(temps+1), font=font, fill= 'grey')
        can1.create_text(80,50, text=str(temps), font=font, fill= 'red')


    if temps==0:        # game over
        stop_it()

    if score_hold != score:
        can1.create_text(250,50, text=str(score_hold), font=font, fill= 'grey')
        can1.create_text(250,50, text=str(score), font=font, fill= 'cyan')
        score_hold=score

def stop_it():
#  arret de l'animation"
    global flag
    flag =0

def start_it():
#  demarrage de l'animation"
    global flag,temps,score
    if flag ==0: # pour ne lancer qu une seule boucle
        flag =1
        temps=60
        score=0
        can1.create_text(80,50, text=str(0), font=font, fill= 'grey')
        can1.create_text(80,50, text=str(60), font=font, fill= 'red')
        move()

def change():
    global dx,dy,dx2,dy2
    dx, dy = random.randint(-15,15),random.randint(-15,15)
    dx2, dy2 = random.randint(-15,15),random.randint(-15,15)
    dx3, dy3 = random.randint(-15,15),random.randint(-15,15)
    dx4, dy4 = random.randint(-15,15),random.randint(-15,15)

def key(event):
    global xraq
    xraq=0
    if event.keysym == 'Up':
        xraq=15
    if event.keysym == "Down":
        xraq=-15



#========== Programme principal =============
# les variables suivantes seront utilisables de maniere globale :
x1, y1 = random.randint(50,450),random.randint(50,450)
dx, dy = random.randint(-15,15),random.randint(-15,15) # 'pas' du deplacement
x2, y2 = random.randint(50,450),random.randint(50,450)
dx2, dy2 = random.randint(-15,15),random.randint(-15,15) # 'pas' du deplacement
x3, y3 = random.randint(50,450),random.randint(50,450)
dx3, dy3 = random.randint(-15,15),random.randint(-15,15)
x4, y4 = random.randint(50,450),random.randint(50,450)
dx4, dy4 = random.randint(-15,15),random.randint(-15,15)

xraq,yraq=460,220
draq=0

score=0
score_hold=1
temps=60
t=0

flag =0 # commutateur
# Creation du widget principal ("parent") :
fen1 = Tk()
fen1.title("Animations avec tkinter")
# creation des widgets "enfants" :
can1 = Canvas(fen1,bg='grey',height=500, width=500)
can1.pack(side=LEFT, padx =5, pady =5)

oval1 = can1.create_oval(x1, y1, x1+30, y1+30, width=2, fill="blue")
oval2 = can1.create_oval(x2, y2, x2+30, y2+30, width=2, fill="red")
oval3 = can1.create_oval(x3, y3, x3+30, y3+30, width=2, fill="yellow")
oval4 = can1.create_oval(x4, y4, x4+30, y4+30, width=2, fill="black")


raquette = can1.create_rectangle(xraq,yraq, xraq+20,yraq+100, fill='green')


bou1 = Button(fen1,text='Quitter', width =8, command=fen1.destroy)
bou1.pack(side=BOTTOM)
bou2 = Button(fen1, text='Demarrer', width =8, command=start_it)
bou2.pack()
bou3 = Button(fen1, text='Arreter', width =8, command=stop_it)
bou3.pack()
bou4 = Button(fen1, text='Change', width =8, command=change)
bou4.pack()
text1 = Label(fen1, text="fleches gauche/droite , space=stop")
text1.pack()

font=Font(family='Liberation Serif', size=50, weight='bold' )
can1.create_text(250,50, text=str(score), font=font, fill= 'cyan')
can1.create_text(80,50, text=str(temps), font=font, fill= 'red')



fen1.bind("<Key>", key)

fen1.mainloop()