#include <gl gl.h=""></gl>

#include "model.h"

void Model::transform(const Vector3 &scale, const Vector3 &move) {

    for(TriangleList::iterator i = triangles.begin(); i != triangles.end(); ++i) {

        for(int j = 0; j < 3; ++j) {

            i->normal.c[j] *= scale.c[j];

            for(int k = 0; k < 3; ++k) {

                i->vertices[k].c[j] *= scale.c[j];

                i->vertices[k].c[j] += move.c[j];

            }

        }

        Real nl = i->normal.len();

        nl = nl > 1e-5 ? 1/nl : 0.0;

        i->normal = i->normal * nl;

    }

}

void Model::draw() const {

    glEnable(GL_LIGHTING);

    glColor4dv(color.c);

    glBegin(GL_TRIANGLES);

    for(TriangleList::const_iterator i = triangles.begin(); i != triangles.end(); ++i) {

        glNormal3dv(i->normal.c);

        glVertex3dv(i->vertices[0].c);

        glVertex3dv(i->vertices[1].c);

        glVertex3dv(i->vertices[2].c);

    }

    glEnd();

    glDisable(GL_LIGHTING);

}