# Créé par Fred, le 30/12/2012
from __future__ import division
from lycee import *
from Tkinter import *
from random import randrange
from time import sleep

"""_____________________________________"""
#exercices 5.8.2 à 5.8.4

def dessinligne():
    global x1, y1, x2, y2, coul,large,haut
    x2=randrange(large)
    y2=randrange(haut)
    can.create_line(x1,y1,x2,y2,width=1,fill=coul)
    x1, y1 = x2, y2

def changecouleur():
    global coul
    cl=['purple','cyan','maroon','green','red','blue','orange','yellow']
    coul=cl[randrange(8)]

def exercices_582_a_584():
    x1, y1, x2, y2 = 10, 190, 190, 10
    large, haut = 300,200
    coul = 'cyan'

    fenetre = Tk()
    can = Canvas(fenetre,bg='ivory',height=haut,width=large)
    can.grid(column=0,row=0,rowspan=10)
    bou1 = Button(fenetre,text='Quitter',command=fenetre.quit)
    bou1.grid(column=1,row=9,sticky=W)
    bou2 = Button(fenetre,text=u'Tracé d\'une ligne', command=dessinligne)
    bou2.grid(column=1,row=0,sticky=W)
    bou3 = Button(fenetre,text='Autre couleur',command=changecouleur)
    bou3.grid(column=1,row=1,sticky=W)

    fenetre.mainloop()

"""_____________________________________"""
#exercice 5.8.7

def dessin_rectangle():
    global deja,nrect,L
    x0=pos_souris[0]
    y0=pos_souris[1]
    for k in range(nrect):
        ux=x0+direct[0]*k*ecartx+randrange(ecartx)
        uy=y0+direct[1]*k*ecarty+randrange(ecarty)
        x=int(ux)
        y=int(uy)
        u=x,y,x+ecartx,y+ecarty
        if deja==0:
            L.append(can.create_rectangle(u,fill=cl[k%len(cl)]))
        else:
            can.coords(L[k],u)
        sleep(0.01)
    deja=deja+1
    fenetre.update()

def bouge(event):
    global pos_souris,anc_pos,deja,direct
    if deja<0:deja=0
    pos_souris=[event.x,event.y]
    u=math.atan2(pos_souris[1]-anc_pos[1],pos_souris[0]-anc_pos[0])
    p=math.pi
    direct=(cos(p-u),sin(u-p))
    etiquette.config(text=str(u)+'° ('+str(direct[0])+','+str(direct[1])+')')
    dessin_rectangle()
    anc_pos=pos_souris

def exercice_5_8_7():
    cl=['purple','cyan','maroon','green','red','blue','orange','yellow']
    large, haut = 600,600
    pos_souris=[300,300];anc_pos=pos_souris;direct=(1,0)
    deja=-1;nrect=20;L=[];ecartx=15;ecarty=10

    fenetre = Tk()
    can = Canvas(fenetre,bg='ivory',height=haut,width=large)
    can.grid(column=0,row=0)
    bou1 = Button(fenetre,text='Quitter',command=fenetre.quit)
    bou1.grid(column=1,row=1)
    etiquette=Label(fenetre)
    etiquette.grid(column=0,row=1)
    can.bind('<Motion>',bouge)
    fenetre.mainloop()

"""_____________________________________"""
#exercice 5.8.12

def distance_astres(etat):
    d=((as1[0]-as2[0])**2+(as1[1]-as2[1])**2)**0.5
    return d

def force_grav(d):
    G=(haut**2+large**2)**0.5 #6.7e-11
    if d==0:return as1[5]*as2[5]/G
    else: return as1[5]*as2[5]/(d**2)

def dessinastres(etat):
    ds=distance_astres(etat)
    maxF=force_grav(0)
    if ds>0.1:
        F=force_grav(ds)
        h_rectF=int(0.9*haut*F/maxF)
    else:
        F=1;h_rectF=0.9*haut
    S='distance = '+"%5.2f" % ds+' / force = '+"%7f" %F
    etiquette.configure(text=S)
    if etat==0:
        can.create_rectangle(large-50,haut,large-10,haut-h_rectF,fill='grey',tags='t4')
        can.create_oval(as1[0]-as1[2],as1[1]-as1[2],as1[0]+as1[2],as1[1]+as1[2],fill=as1[4],tags='as1')
        can.create_text(as1[0],as1[1]+2*as1[2],text='M1='+str(as1[5]),fill=as1[6],tags='t1')
        can.create_oval(as2[0]-as2[2],as2[1]-as2[2],as2[0]+as2[2],as2[1]+as2[2],fill=as2[4],tags='as2')
        can.create_text(as2[0],as2[1]+2*as2[2],text='M2='+str(as2[5]),fill=as2[6],tags='t2')
        can.create_line(as1[0],as1[1],as2[0],as2[1],tags='t3')
    elif etat==1:
        can.coords('as1',as1[0]-as1[2],as1[1]-as1[2],as1[0]+as1[2],as1[1]+as1[2])
        can.coords('t1',as1[0],as1[1]+2*as1[2])
        can.itemconfigure('as1',fill=as1[4])
        can.coords('as2',as2[0]-as2[2],as2[1]-as2[2],as2[0]+as2[2],as2[1]+as2[2])
        can.itemconfigure('as2',fill=as2[4])
        can.coords('t2',as2[0],as2[1]+2*as2[2])
        can.coords('t3',as1[0],as1[1],as2[0],as2[1])
        can.coords('t4',large-50,haut,large-10,haut-h_rectF)
    fenetre.update()


def clic(event):
    global pos_souris, as_actif,as1, as2
    pos_souris=[event.x,event.y]
    if as_actif!=0: as_actif=0; as1[4]='cyan';as2[4]='orange'
    else:
        if (as1[0]-as1[2]<pos_souris[0]<as1[0]+as1[2]) and (as1[1]-as1[2]<pos_souris[1]<as1[1]+as1[2]):
            as_actif=1 ; as1[4]='blue'
        elif (as2[0]-as2[2]<pos_souris[0]<as2[0]+as2[2]) and (as2[1]-as2[2]<pos_souris[1]<as2[1]+as2[2]):
            as_actif=2 ; as2[4]='yellow'
        else:
            pass
    dessinastres(1)

def bouge(event):
    global pos_souris, as_actif,as1, as2
    pos_souris=[event.x,event.y]
    if as_actif==1:
        as1[0]=pos_souris[0];as1[1]=pos_souris[1]
    elif as_actif==2:
        as2[0]=pos_souris[0];as2[1]=pos_souris[1]
    dessinastres(1)

"""---------------------------------------------------------------------------"""
def exercice_5_8_12():

    large, haut = 600,600
    as1=[20,20,10,0,'cyan',1,'blue']
    as2=[large-30,haut-50,20,0,'orange',3,'red']
    pos_souris=[0,0]
    as_actif=0

    fenetre = Tk()
    can = Canvas(fenetre,bg='ivory',height=haut,width=large)
    can.grid(column=0,row=0)
    bou1 = Button(fenetre,text='Quitter',command=fenetre.quit)
    bou1.grid(column=1,row=1)
    etiquette=Label(fenetre)
    etiquette.grid(column=0,row=1)
    dessinastres(0)

    can.bind('<ButtonPress-1>',clic)
    can.bind('<Motion>',bouge)

    fenetre.mainloop()

"""---------------------------------------------------------------------------"""

#exercices_582_a_584()

#exercice_5_8_7()

exercice_5_8_12()