CPunct getDest(CPunct &orig, double lungime)
{
double x, y;
orig.getxy(x, y);
CPunct p(x + m.x * lungime, y + m.y * lungime);
return p;
}
void Im3(double lungime, int nivel, CPunct p)
{
double x,y;
p.getxy(x,y);
CPunct p1(x-lungime/2,y+lungime/2);
CVector v(1,0);
v.deseneaza(p1,lungime);
p1=CPunct(x+lungime/2,y+lungime/2);
v=CVector(0,-1);
v.deseneaza(p1,lungime);
p1=CPunct(x+lungime/2,y-lungime/2);
v=CVector(-1,0);
v.deseneaza(p1,lungime);
p1=CPunct(x-lungime/2,y-lungime/2);
v=CVector(0,1);
v.deseneaza(p1,lungime);
if(nivel!=0)
{
Im3(lungime/3,nivel-1,CPunct(x-lungime,y));
Im3(lungime/3,nivel-1,CPunct(x-lungime,y-lungime));
Im3(lungime/3,nivel-1,CPunct(x-lungime,y+lungime));
Im3(lungime/3,nivel-1,CPunct(x+lungime,y));
Im3(lungime/3,nivel-1,CPunct(x+lungime,y-lungime));
Im3(lungime/3,nivel-1,CPunct(x+lungime,y+lungime));
Im3(lungime/3,nivel-1,CPunct(x,y-lungime));
Im3(lungime/3,nivel-1,CPunct(x,y+lungime));
}
}
void deseneaza(CPunct p, double lungime)
{
double x, y;
p.getxy(x, y);
glColor3f(1.0, 0.1, 0.1);
glBegin(GL_LINE_STRIP);
glVertex2d(x, y);
glVertex2d(x + m.x * lungime, y + m.y * lungime);
glEnd();
}
void patrate(double lungime, int nivel, CPunct &p, CVector v)
{
double x, y;
p.getxy(x, y);
CPunct p1(x - lungime / 6, y - lungime / 6);
CPunct p2(x + lungime / 6, y + lungime / 6);
v.deseneaza(p1, lungime / 3);
v.rotatie(-90);
v.deseneaza(p1, lungime / 3);
v.rotatie(-90);
v.deseneaza(p2, lungime / 3);
v.rotatie(-90);
v.deseneaza(p2, lungime / 3);
v.rotatie(270);
if (nivel > 0)
{
CPunct r0(x - lungime / 3, y - lungime / 3);
patrate(lungime / 3, nivel - 1, r0, v);
CPunct r1(x - lungime / 3, y);
patrate(lungime / 3, nivel - 1, r1, v);
CPunct r2(x - lungime / 3, y + lungime / 3);
patrate(lungime / 3, nivel - 1, r2, v);
CPunct r3(x, y - lungime / 3);
patrate(lungime / 3, nivel - 1, r3, v);
CPunct r5(x, y + lungime / 3);
patrate(lungime / 3, nivel - 1, r5, v);
CPunct r6(x + lungime / 3, y - lungime / 3);
patrate(lungime / 3, nivel - 1, r6, v);
CPunct r7(x + lungime / 3, y);
patrate(lungime / 3, nivel - 1, r7, v);
CPunct r8(x + lungime / 3, y + lungime / 3);
patrate(lungime / 3, nivel - 1, r8, v);
}
}