def degrade(c1,c2,k):

 dr=c2[0]-c1[0]

 dg=c2[1]-c1[1]

 db=c2[2]-c1[2]

 return color(c1[0]+int(k*dr),c1[1]+int(k*dg),c1[2]+int(k*db))



def tirage(n):

 for i in range(n):

   x=randint(0,320)

   y=randint(0,222)

   c=couleur(x,y)

   set_pixel(x,y,c)

   set_pixel(x+1,y,c)

   set_pixel(x,y+1,c)

   set_pixel(x+1,y+1,c)



def couleur(x,y):

 d=sqrt((x-160)**2+(y-111)**2)/32.5

 return degrade(c[int(d)],c[(int(d)+1)%6],d-int(d))