Grafika_zad_2

#include <windows.h>
#include <iostream>
#include <GL/glut.h>
#include <stdlib.h>

using namespace std;
enum
{
    ORTO,
    ASPECT_1_1,
    FRUST,
    PERSP,
    EXIT,
    FULL_WINDOW,
};

int rzut,skala;
double xx,xy,zx,yx,obrot_x=0.0,obrot_y=0.0,yy,zy;
double fovy =90,dx=0.0,dy=0.0,dz=0.0;

static void Display(void)
{
    glClear(GL_COLOR_BUFFER_BIT);
    glClearColor(1.0,1.0,1.0,1.0);
    glMatrixMode( GL_MODELVIEW );
    glLoadIdentity();
    gluLookAt(dx, dy, dz, -0.1, -0.1, -0.1, 0.0, 1.0, 0.0);
    glRotatef(obrot_x,xx,xy,zx);
    glRotatef(obrot_y,xy,yy,zy);
    glColor3f(1.0,0.0,0.0);
    glBegin(GL_LINES);

        glVertex3f(-0.5,1.0,0.5);
        glVertex3f(0.5,1.0,0.5); //A
        glVertex3f(-0.5,1.0,0.5);
        glVertex3f(-1.0,0.0,0.5);//B
        glVertex3f(-1.0,0.0,0.5);
        glVertex3f(-0.5,-1.0,0.5);//C
        glVertex3f(-0.5,-1.0,0.5);
        glVertex3f(0.5,-1.0,0.5);//D
        glVertex3f(0.5,-1.0,0.5);
        glVertex3f(1.0,0.0,0.5);//E
        glVertex3f(1.0,0.0,0.5);
        glVertex3f(0.5,1.0,0.5);

        glVertex3f(-0.5,1.0,-0.5);
        glVertex3f(0.5,1.0,-0.5); //A
        glVertex3f(-0.5,1.0,-0.5);
        glVertex3f(-1.0,0.0,-0.5);//B
        glVertex3f(-1.0,0.0,-0.5);
        glVertex3f(-0.5,-1.0,-0.5);//C
        glVertex3f(-0.5,-1.0,-0.5);
        glVertex3f(0.5,-1.0,-0.5);//D
        glVertex3f(0.5,-1.0,-0.5);
        glVertex3f(1.0,0.0,-0.5);//E
        glVertex3f(1.0,0.0,-0.5);
        glVertex3f(0.5,1.0,-0.5);

        glVertex3f(-0.5,1.0,0.5);
        glVertex3f(-0.5,1.0,-0.5);
        glVertex3f(-1.0,0.0,0.5);
        glVertex3f(-1.0,0.0,-0.5);
        glVertex3f(-0.5,-1.0,0.5);
        glVertex3f(-0.5,-1.0,-0.5);
        glVertex3f(0.5,-1.0,0.5);
        glVertex3f(0.5,-1.0,-0.5);
        glVertex3f(1.0,0.0,0.5);
        glVertex3f(1.0,0.0,-0.5);
        glVertex3f(0.5,1.0,0.5);
        glVertex3f(0.5,1.0,-0.5);

glEnd();

    glFlush();
    glutSwapBuffers();
}
void Reshape(int width, int height)
{
    // obszar renderingu - ca³e okno
    glViewport (0,0,width,height);
// wybór macierzy rzutowania
    glMatrixMode (GL_PROJECTION);
// macierz rzutowania = macierz jednostkowa
    glLoadIdentity ();
// ustawienie parametrów zakresu rzutni
    GLdouble aspect = 1;
    GLfloat zakres = 3.0f;
    GLfloat blisko = 1.0f;
    GLfloat daleko = 5.0;

    if (rzut==ORTO)
    {
        if (skala==ASPECT_1_1)
        {
            if (width < height && width > 0)
                glOrtho (-zakres,zakres,-zakres*height/width,zakres*height/width,-zakres,zakres);
            else if (width >= height && height > 0)
                glOrtho (-zakres*width/height,zakres*width/height,-zakres,zakres,-zakres,zakres);
        }
        else
            glOrtho (-zakres,zakres,-zakres,zakres,-zakres,zakres);
    }

    if (rzut==FRUST)
    {
        if (skala==ASPECT_1_1)
        {
            if (width < height && width > 0)
                glFrustum (-zakres,zakres,-zakres*height/width,zakres*height/width,blisko,daleko);
            else if (width >= height && height > 0)
                glFrustum (-zakres*width/height,zakres*width/height,-zakres,zakres,blisko,daleko);
        }
        else
            glFrustum (-zakres,zakres,-zakres,zakres,blisko,daleko);
    }
    if (rzut==PERSP)
    {
        if (height > 0)
            aspect = width/(GLdouble)height;
        gluPerspective (fovy,aspect,blisko,daleko);
    }
    Display ();
}
void Menu (int value)
{
    switch (value)
    {
// wyjœcie
    case EXIT:
        exit (0);
    case FULL_WINDOW:
        skala=FULL_WINDOW;
        Reshape (glutGet (GLUT_WINDOW_WIDTH),glutGet (GLUT_WINDOW_HEIGHT));
        break;
    case ASPECT_1_1:
        skala=ASPECT_1_1;
        Reshape (glutGet (GLUT_WINDOW_WIDTH),glutGet (GLUT_WINDOW_HEIGHT));
        break;
    case ORTO:
        rzut=ORTO;
        Reshape (glutGet (GLUT_WINDOW_WIDTH),glutGet (GLUT_WINDOW_HEIGHT));
        break;
    case FRUST:
        rzut=FRUST;
        Reshape (glutGet (GLUT_WINDOW_WIDTH),glutGet (GLUT_WINDOW_HEIGHT));
        break;
    case PERSP:
        rzut=PERSP;
        Reshape (glutGet (GLUT_WINDOW_WIDTH),glutGet (GLUT_WINDOW_HEIGHT));
        break;
    }
}

void Funkcja_klawiatury (unsigned char key, int x, int y)
{
// klawisz +
    if (key == 'd')
    {
        xx=0;
        yx=1;
        zx=0;
        obrot_x=obrot_x+5;
        cout<<"obrot_x= "<<obrot_x<<endl;
    }
    if (key == 'a')
    {
        xx=0;
        yx=1;
        zx=0;
        obrot_x=obrot_x-5;
        cout<<"obrot_x= "<<obrot_x<<endl;
    }
    if (key == 'w')
    {
        xy=1;
        yy=0;
        zy=0;
        obrot_y=obrot_y+5;
        cout<<"obrot_y= "<<obrot_y<<endl;
    }
    if (key == 's')
    {
        xy=1;
        yy=0;
        zy=0;
        obrot_y=obrot_y-5;
        cout<<"obrot_y= "<<obrot_y<<endl;
    }
        if (key == '+')
    {

        obrot_y=obrot_y-5;
        cout<<"obrot_y= "<<obrot_y<<endl;
    }
    Reshape (glutGet (GLUT_WINDOW_WIDTH),glutGet (GLUT_WINDOW_HEIGHT));
}
void specialKey(int klawisz, int x, int y)
{
cout << " klawisz" << klawisz << endl;
if(klawisz == 100)
{
dx-=0.1;
cout<<"dx="<<dx<<endl;
}
if(klawisz == 102)
{
dx+=0.1;
cout<<"dx="<<dx<<endl;
}
if(klawisz == 101)
{
dy+=0.1;
cout<<"dy="<<dx<<endl;
}
if(klawisz == 103)
{
dy-=0.1;
cout<<"dy="<<dx<<endl;
}
Reshape (glutGet (GLUT_WINDOW_WIDTH),glutGet (GLUT_WINDOW_HEIGHT));
}


int main(int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(10,10);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("Zadanie 2");

    glutReshapeFunc(Reshape);
    glutDisplayFunc(Display);
    glutIdleFunc(Display);
    glutCreateMenu (Menu); // utworzenie menu podrêcznego
    // dodadnie pozycji do menu podrêcznego
    glutAddMenuEntry ("Rodzaj skalowania - ca³e okno",FULL_WINDOW);
    glutAddMenuEntry ("Rodzaj skalowania - skala 1:1",ASPECT_1_1);
    glutAddMenuEntry ("Rzutowanie ortogonalne", ORTO);
    glutAddMenuEntry ("Rzutowanie frustum", FRUST);
    glutAddMenuEntry ("Rzutowanie perspective", PERSP);
    glutAddMenuEntry ("Wyjœcie",EXIT);
    glutAttachMenu (GLUT_RIGHT_BUTTON); // okreœlenie przycisku myszki obs³uguj¹cej menu podrêczne
    glutKeyboardFunc(Funkcja_klawiatury);
    //glutIdleFunc(idle);
    glutSpecialFunc(specialKey);

    cout<<"STROWANIE"<<endl;
    cout<<"PRZYBLIZ strzałka w gore"<<endl;
    cout<<"ODDAL strzałka w dół"<<endl;
    cout<<"OBROT W OKOL OSI Y :'W','S'"<<endl;
    cout<<"OBROT W OKOL OSI X :'A','D'"<<endl;



    glutMainLoop();

    return EXIT_SUCCESS;
}