Examen

#include <GL/glut.h>
#include <math.h>
#include < stdio.h>
#include < stdlib.h>
GLfloat anguloPiramideX=0.0f;
GLfloat anguloPiramideY=0.0f;
GLint ancho=400;
GLint alto=400;
int Perspectiva=0;
GLfloat anguloCamaraY = 0.0f;
GLfloat anguloCamaraX = 0.0f;
GLfloat anguloCamaraZ= 0.0f;
GLfloat anguloCamara2Z = 0.0f;
GLfloat posObjeto = -5.0f;
int lookAt=0;
int h=0;

GLfloat axisy = 0;
GLfloat axisx = 0;
GLfloat axisz = 0;
GLfloat axisyy = 1;
GLfloat axisxx = 1;
GLfloat axiszz = 1;
void reshape(int width, int height)
{
    glViewport(0, 0, width, height);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
 if(Perspectiva)
  gluPerspective(60.0f,(GLfloat)width/(GLfloat)height,1.0f,20.0f);
 else
   glOrtho(-15, 15, -15, 15, -15, 15);
    glMatrixMode(GL_MODELVIEW);
}
void display(){
 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glLoadIdentity();
 glTranslatef( axisx, axisy, axisz);
 glScalef( axisxx, axisyy, axiszz);
    if (!lookAt){
        //glTranslatef(0.0f, 0.0f, posObjeto); // zoom
        // eje horizontal.
        glRotatef(anguloCamaraY, 0.0f, 1.0f, 0.0f);
        // eje vertical.
        glRotatef(anguloCamaraX,1.0f,0.0f,0.0f);
    } else {
        gluLookAt(-5,10,5,0,0,0,1,12,4);
    }
    glColor3f(0.0f,1.0f,0.0f); //TRASERA
 glBegin(GL_TRIANGLES);

  glVertex3f(-1.0f,0.0f,-1.0f);

  glVertex3f(1.0f,0.0f,-1.0f);

  glVertex3f(0.0f,2.0f,0.0f);
 glEnd();

 glColor3f(1.0f,0.9f,0.0f); //FRONTAL
 glBegin(GL_TRIANGLES);

  glVertex3f(1.0f,0.0f,1.0f);

  glVertex3f(-1.0f,0.0f,1.0f);

  glVertex3f(0.0f,2.0f,0.0f);
 glEnd();

 glColor3f(0.0f,0.0f,1.0f); //LATERAL IZQ
 glBegin(GL_TRIANGLES);

  glVertex3f(-1.0f,0.0f,-1.0f);

  glVertex3f(-1.0f,0.0f,1.0f);

  glVertex3f(0.0f,2.0f,0.0f);
 glEnd();
 glColor3f(0.0f,1.0f,0.0f); //LATERAL DER
 glBegin(GL_TRIANGLES);

  glVertex3f(1.0f,0.0f,1.0f);

  glVertex3f(1.0f,0.0f,-1.0f);

  glVertex3f(0.0f,2.0f,0.0f);
 glEnd();
 glColor3f(1.0f,0.0f,0.0f);
 glBegin(GL_QUADS);
    glVertex3f(-1,-1, 1);
    glVertex3f(1,-1, 1);
    glVertex3f(1,-1, -1);
    glVertex3f(-1,-1,-1);
    glEnd();
   
    glFlush();
}

void keyboard(unsigned char key, int x, int y){
    switch(key) {
// ROTAR CAMARA LA DERECHA
    case '1':
        anguloCamaraY++;
        printf("Angulo de rotacion de la camara en torno al eje Y: %i \n",((int)anguloCamaraY % 360));
        display();
        break;
// ROTAR CAMARA LA IZQUIERDA
    case '2':
        anguloCamaraY--;
        printf("Angulo de rotacion de la camara en torno al eje Y: %i \n",((int)anguloCamaraY % 360));
        display();
        break;
// ROTAR CAMARA HACIA ARRIBA
    case '3':
        anguloCamaraX++;
        printf("Angulo de rotacion de la camara en torno al eje X: %i \n",((int)anguloCamaraX % 360));
        display();
        break;
// ROTAR CAMARA HACIA ABAJO
    case '4':
        anguloCamaraX--;
        printf("Angulo de rotacion de la camara en torno al eje X: %i \n",((int)anguloCamaraX % 360));
        display();
        break;
    case '5':
        posObjeto++;
        display();
        break;
    case '6':
        posObjeto--;
        display();
        break;
    case '7':
        if (lookAt==0){
            lookAt=1;
        }else{
            lookAt=0;
        }
        display();
        break;
 case 'q':
  axisx=axisx+0.1;
  display();
  break;
 case 'w':
  axisy=axisy+0.1;
  display();
  break;

 case 'a':
  axisxx=axisxx+0.1;
  display();
  break;
 case 's':
  axisyy=axisyy+0.1;
  display();
  break;
 case 'e':
  axisx=axisx-0.1;
  display();
  break;
 case 'r':
  axisy=axisy-0.1;
  display();
  break;

 case 'd':
  axisxx=axisxx-0.1;
  display();
  break;
 case 'f':
  axisyy=axisyy-0.1;
  display();
  break;

        }
}

void init()
{
    glClearColor(1,0,0,0);
}

int main(int argc, char **argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);   
    glutInitWindowPosition(50, 50);
    glutInitWindowSize(500, 500);
    glutCreateWindow("Hello OpenGL");
    init();
    glutDisplayFunc(display);
    glutReshapeFunc(reshape);
 glutKeyboardFunc(keyboard);
    glutMainLoop();
    return 0;
}