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//#ident "$Id: Sphere.cpp,v 1.6 2003/05/12 12:17:58 rzr Exp $"
/***************************************************************************
Sphere.cpp - description
-------------------
begin : Wed Jan 26 2000
copyright : (C) 2000 by Henrik Enqvist
email : henqvist@excite.com
***************************************************************************/
#include "Private.h"
#include "Sphere.h"
#include "Polygon.h"
Sphere::Sphere(float fSize, float fR, float fG, float fB, float fA) : Shape3D(3*8+2, 5*8) {
Polygon3D * p;
// Top and bottom vertex.
this->add(0, fSize, 0);
this->add(0, -fSize, 0);
// First ring of vertices.
{ for (float a=0; a<8; a+=1) {
this->add(EM_SIN_45*EMath::emSin(a/8)*fSize, EM_SIN_45*fSize, EM_SIN_45*EMath::emCos(a/8)*fSize,
fR, fG, fB, fA, 0.0f, 0.0f);
} }
// Second ring.
{ for (float a=0; a<8; a+=1) {
this->add(EMath::emSin(a/8)*fSize, 0 ,EMath::emCos(a/8)*fSize,
fR, fG, fB, fA, 0.0f, 0.0f);
} }
// Third ring.
{ for (float a=0; a<8; a+=1) {
this->add(EM_SIN_45*EMath::emSin(a/8)*fSize, -EM_SIN_45*fSize, EM_SIN_45*EMath::emCos(a/8)*fSize,
fR, fG, fB, fA, 0.0f, 0.0f);
} }
// First ring of polygons.
{ for (int a=2; a<9; a++) {
p = new Polygon3D(this, 3);
p->add(0);
p->add(a+1);
p->add(a);
this->add(p);
} }
p = new Polygon3D(this, 3);
p->add(0);
p->add(2);
p->add(9);
this->add(p);
// Second ring.
{ for (int a=2; a<9; a++) {
p = new Polygon3D(this, 4);
p->add(a);
p->add(a+1);
p->add(a+9);
p->add(a+8);
this->add(p);
} }
p = new Polygon3D(this, 4);
p->add(9);
p->add(2);
p->add(10);
p->add(17);
this->add(p);
// Third ring.
{ for (int a=10; a<17; a++) {
p = new Polygon3D(this, 4);
p->add(a);
p->add(a+1);
p->add(a+9);
p->add(a+8);
this->add(p);
} }
p = new Polygon3D(this, 4);
p->add(17);
p->add(10);
p->add(18);
p->add(25);
this->add(p);
// Fourth ring.
{ for (int a=18; a<25; a++) {
p = new Polygon3D(this, 3);
p->add(a);
p->add(a+1);
p->add(1);
this->add(p);
} }
p = new Polygon3D(this, 3);
p->add(25);
p->add(18);
p->add(1);
this->add(p);
this->countNormals();
}
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