lab18.04

/*
 * GLUT Shapes Demo
 *
 * Written by Nigel Stewart November 2003
 *
 * This program is test harness for the sphere, cone
 * and torus shapes in GLUT.
 *
 * Spinning wireframe and smooth shaded shapes are
 * displayed until the ESC or q key is pressed.  The
 * number of geometry stacks and slices can be adjusted
 * using the + and - keys.
 */
#include <Windows.h>


#ifdef __APPLE__
#include <GLUT/glut.h>
#else
#include <GL/glut.h>
#endif

#include <stdlib.h>
#include <string>
#include <iostream>
#include <fstream>
#include <istream>

using namespace std;


static int slices = 16;
static int stacks = 16;

/* GLUT callback Handlers */

static void resize(int width, int height)
{
    const float ar = (float) width / (float) height;

    glViewport(0, 0, width, height);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    glOrtho(-14*ar,14*ar, -14,14,0,20);
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity() ;
}

struct wezel
{
    double x;
    double y;
    double z;
};
const int nW=6;
const int nE=5;
wezel w[nW];

struct element
{
    int lW; //liczba wezlow
    int nrO; // nr obiektu
    int w[4];
};
element e[nE];

/*
int czytanie(const string & nazwaplik)
{
    int lWez, lEle;
    int pomI;
    ifstream plik(nazwaplik.c_str());
    plik>>lWez;
    if(lWez!=nW) cout<<"Popraw w programie liczbe wezlow"<<endl;
    for(int i=0; i<nW; i++)
    {
        plik>>pomI>>w[i].x>>w[i].y>>w[i].z;
    }
    plik>>lEle;
    if(lEle!=nE) cout<<"Popraw w programie liczbe elementow obiektu 1"<<endl;
    for(int i=0; i<nE; i++)
    {
        plik>>pomI;
        plik>>e[i].lW;
        for(int j=0;j<e[i].lW;j++)
        {
            plik>>e[i].w[j];
        }
            plik>>e[i].nrO;
    }
    plik.close();

    return 0;
}


*/
int czytanie(const string & nazwaPlik)
{
    int lWez,lEle;
    int pomI;
    ifstream plik(nazwaPlik.c_str());
    plik>>lWez;
    if(lWez!=nW) cout<<"popraw w programie liczbe wezlow"<<endl;
    for(int i=0;i<nW;i++)
    {
        plik>>pomI>>w[i].x>>w[i].y>>w[i].z;
    }
    plik>>lEle;
    if(lEle!=nE) cout<<"popraw w programie liczbe elementow obiektu 1"<<endl;
    for(int i=0;i<nE;i++)
    {
        plik>>pomI;
        plik>>e[i].lW;
        for(int j=0;j<e[i].lW;j++)
            plik>>e[i].w[j];
        plik>>e[i].nrO;
    }
    plik.close();
    return 0;
}

static void display(void)
{
    const double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
    const double a = t*90.0;

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glColor3d(1,0,0);
    glPushMatrix();
        glTranslated(-2.4,1.2,-6);
        glRotated(a,0.5,1,0.2);
    for(int i=0;i<nE;i++)
    {
        glColor3d(0.5/i,0,i/10.0);
        if(e[i].lW==3)
        {
            glBegin(GL_TRIANGLES);
                for(int j=0;j<e[i].lW;j++)
                {
                    glVertex3d(w[e[i].w[j]].x,w[e[i].w[j]].y,w[e[i].w[j]].z);
                }
            glEnd();
        }
        if(e[i].lW==4)
        {
            glBegin(GL_QUADS);
             for(int j=0;j<e[i].lW;j++)
                {
                    cout<<e[i].w[j]<<endl;
                    glVertex3d(w[e[i].w[j]].x,w[e[i].w[j]].y,w[e[i].w[j]].z);
                }
            glEnd();
        }
    }
    glPopMatrix();



    glutSwapBuffers();
}


static void key(unsigned char key, int x, int y)
{
    switch (key)
    {
        case 27 :
        case 'q':
            exit(0);
            break;

        case '+':
            slices++;
            stacks++;
            break;

        case '-':
            if (slices>3 && stacks>3)
            {
                slices--;
                stacks--;
            }
            break;
    }

    glutPostRedisplay();
}

static void idle(void)
{
    glutPostRedisplay();
}

const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };
const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f };

const GLfloat mat_ambient[]    = { 0.7f, 0.7f, 0.7f, 1.0f };
const GLfloat mat_diffuse[]    = { 0.8f, 0.8f, 0.8f, 1.0f };
const GLfloat mat_specular[]   = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat high_shininess[] = { 100.0f };

/* Program entry point */

int main(int argc, char *argv[])
{
    czytanie("c:\\tmp\\graniastoslup.txt");
    glutInit(&argc, argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(10,10);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    glutReshapeFunc(resize);
    glutDisplayFunc(display);
    glutKeyboardFunc(key);
    //glutIdleFunc(idle);

    glClearColor(1,1,1,1);
    glEnable(GL_CULL_FACE);
    glCullFace(GL_BACK);

    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LESS);

    glEnable(GL_LIGHT0);
    glEnable(GL_NORMALIZE);
    glEnable(GL_COLOR_MATERIAL);
    glEnable(GL_LIGHTING);

    glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);
    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);
    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
    glLightfv(GL_LIGHT0, GL_POSITION, light_position);

    glMaterialfv(GL_FRONT, GL_AMBIENT,   mat_ambient);
    glMaterialfv(GL_FRONT, GL_DIFFUSE,   mat_diffuse);
    glMaterialfv(GL_FRONT, GL_SPECULAR,  mat_specular);
    glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);

    glutMainLoop();

    return EXIT_SUCCESS;
}