# Créé par Fred, le 26/02/2013
from __future__ import division
from lycee import *
import Tkinter as Tk
from random import randrange
from time import sleep


large, haut = 500,500
cl=['purple','cyan','maroon','green','red','blue','orange','black','pink','khaki']
maxcl=len(cl)

class Trace_segments :
    def __init__ (self, fenetre) :
        self.fenetre = fenetre
        self.creation ()
        self.L = []
        self.maxL=20
        self.deja=0
        self.arret=False
        self.cible=False
        self.x1, self.y1= large//2, haut//2
        self.R1=self.can.create_rectangle(self.x1-large//8,self.y1-haut//3,self.x1+large//8,self.y1+haut//3,fill='orange',state='hidden')
        self.R0=self.can.create_rectangle(self.x1-large//3,self.y1-haut//8,self.x1+large//3,self.y1+haut//8,fill='orange',state='hidden')
        self.R2=self.can.create_oval(self.x1-large//4,self.y1-haut//4,self.x1+large//4,self.y1+haut//4,fill='red',state='hidden')
        self.R=[self.R0,self.R1,self.R2]

    def creation (self) :
        self.can = Tk.Canvas(self.fenetre,bg='white',height=haut,width=large)
        b1 = Tk.Button (self.fenetre, text="Lancer", command=self.commande_bouton1)
        b2 = Tk.Button (self.fenetre, text="Arrêt", command=self.commande_bouton2)
        b4 = Tk.Button (self.fenetre, text="Quitter", command=self.fenetre.quit)
        b3 = Tk.Button (self.fenetre, text="Cible", command=self.commande_bouton3)
        self.can.grid(column=0,row=0,rowspan=40)
        b1.grid (row=1, column=1,sticky=Tk.W)
        b2.grid (row=2, column=1,sticky=Tk.W)
        b3.grid (row=3, column=1,sticky=Tk.W)
        b4.grid (row=4, column=1,sticky=Tk.W)


    def commande_bouton1 (self) :
        self.arret=False
        self.controle ()

    def commande_bouton2 (self) :
        self.arret=True
        self.zero()
        self.controle ()

    def affiche_cible(self):
        for k in range(3):
            if self.cible:self.can.itemconfigure(self.R[k],state='normal')
            else:self.can.itemconfigure(self.R[k],state='hidden')

    def commande_bouton3 (self) :
        self.cible= not self.cible
        self.affiche_cible()

    def zero (self) :
        if self.deja>0:
            for k in range(len(self.L)):
                self.can.delete(self.L[k])
        self.deja=0
        self.L = []

    def nouvelle_ligne(self,k):
        a=int(randint(-2,2))
        b=int(randint(-2,2))
        x2=(self.x1+a*randrange(large//20))
        if x2>large:x2=large
        elif x2<0: x2=0
        y2=(self.y1+b*randrange(haut//20))
        if y2>haut:y2=haut
        elif y2<0: y2=0
        l=randint(2,6)
        self.L.append(self.can.create_line(self.x1,self.y1,x2,y2,width=l,fill=cl[k%maxcl]))
        self.x1, self.y1 = x2, y2

    def tourne_couleur(self,k):
        try:
            self.can.delete(self.L[0])
            del self.L[0]
            self.nouvelle_ligne(k)
        except:
            pass

    def controle (self) :
        if self.deja==0 and not self.arret:
            for k in range(self.maxL):
                self.nouvelle_ligne(k)
                sleep(0.1)
                self.fenetre.update()
                self.deja=self.deja+1
        while not self.arret:
            self.tourne_couleur(self.deja%self.maxL)
            self.deja=self.deja+1
            self.fenetre.update()
            sleep(0.1)


if __name__ == "__main__" :
    fen = Tk.Tk ()
    f = Trace_segments(fen)
    fen.mainloop ()