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//#ident "$Id: Cone.cpp,v 1.8 2003/05/12 12:17:58 rzr Exp $"
/***************************************************************************
Cone.cpp - description
-------------------
begin : Wed Jan 26 2000
copyright : (C) 2000 by Henrik Enqvist
email : henqvist@excite.com
***************************************************************************/
#include "Private.h"
#include "Cone.h"
#include "Polygon.h"
Cone::Cone(float fSize, int sides, float fR, float fG, float fB, float fA) : Shape3D(8+1, 8+1) {
if (sides < 3) sides = 3;
Polygon3D* p;
// Top vertex.
this->add(0, fSize/2, 0);
// Ring of vertices.
for (float a=0; a<sides; ++a) {
this->add( EMath::emSin(a/sides)*fSize/2, -fSize/2 , EMath::emCos(a/sides)*fSize/2,
fR, fG, fB, fA, 0.0f, 0.0f);
}
// The ring of polygons.
{ for (int a=1; a<sides; ++a) {
p = new Polygon3D(this, 3);
p->add(0);
p->add(a+1);
p->add(a);
this->add(p);
} }
// the last one
p = new Polygon3D(this, 3);
p->add(0);
p->add(1);
p->add(sides);
this->add(p);
// The bottom of the cone.
p = new Polygon3D(this, sides);
{ for (int a=0; a<sides; ++a) {
p->add(a+1);
} }
this->add(p);
this->countNormals();
}
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