Th!nk Again

sudo apt-get install build-essential freeglut3-dev

#include <iostream>
//#include <Windows.h>
#include <GL/glut.h>
#include <cstdlib>
//sample input:
//    {1, 1, -1},{1, 0, -1},{1, 0, 0},{1, 1, 0}
//    {0, 1, -1},{0, 0, -1},{0, 0, 0},{1, 0, 0}
// We are using the Standard Template Library namespace
using namespace std;

#define VERTICES    8
#define FACES      6

float angleX = 0.0f;
float angleY = 0.0f;
float angleZ = 0.0f;
float transZ = -10.0f;

float   g_fCubeCoords[8][3];

void initGraphics(int argc, char* argv[]);
void startRendering();
void reshape(int w, int h);
void keyboard(unsigned char key, int x, int y);
void display();

void dibujaCubof(float width,float height, float depth){
    //calcula 8 vertices
    double mid_w= width/2.0, mid_h=height/2.0, mid_d=depth/2.0;
    g_fCubeCoords[0][0]= mid_w;g_fCubeCoords[0][1]= mid_h;g_fCubeCoords[0][2]= mid_d;
    g_fCubeCoords[1][0]= mid_w;g_fCubeCoords[1][1]= mid_h;g_fCubeCoords[1][2]=-mid_d;
    g_fCubeCoords[2][0]= mid_w;g_fCubeCoords[2][1]=-mid_h;g_fCubeCoords[2][2]=-mid_d;
    g_fCubeCoords[3][0]= mid_w;g_fCubeCoords[3][1]=-mid_h;g_fCubeCoords[3][2]= mid_d;   
    g_fCubeCoords[4][0]= -mid_w;g_fCubeCoords[4][1]= mid_h;g_fCubeCoords[4][2]= mid_d;
    g_fCubeCoords[5][0]= -mid_w;g_fCubeCoords[5][1]= mid_h;g_fCubeCoords[5][2]=-mid_d;
    g_fCubeCoords[6][0]= -mid_w;g_fCubeCoords[6][1]=-mid_h;g_fCubeCoords[6][2]=-mid_d;
    g_fCubeCoords[7][0]= -mid_w;g_fCubeCoords[7][1]=-mid_h;g_fCubeCoords[7][2]= mid_d;
    glBegin(GL_QUADS);
            /// Front face
            glVertex3fv(g_fCubeCoords[0]);  glVertex3fv(g_fCubeCoords[1]);
            glVertex3fv(g_fCubeCoords[2]);  glVertex3fv(g_fCubeCoords[3]);

            /// Back face
            glVertex3fv(g_fCubeCoords[4]);  glVertex3fv(g_fCubeCoords[5]);
            glVertex3fv(g_fCubeCoords[6]);  glVertex3fv(g_fCubeCoords[7]);

            /// Left face
            glVertex3fv(g_fCubeCoords[0]);  glVertex3fv(g_fCubeCoords[3]);
            glVertex3fv(g_fCubeCoords[7]);  glVertex3fv(g_fCubeCoords[4]);

            /// Right face
            glVertex3fv(g_fCubeCoords[1]);  glVertex3fv(g_fCubeCoords[5]);
            glVertex3fv(g_fCubeCoords[6]);  glVertex3fv(g_fCubeCoords[2]);

            /// Top face
            glVertex3fv(g_fCubeCoords[0]);  glVertex3fv(g_fCubeCoords[4]);
            glVertex3fv(g_fCubeCoords[5]);  glVertex3fv(g_fCubeCoords[1]);

            /// Bottom face
            glVertex3fv(g_fCubeCoords[3]);  glVertex3fv(g_fCubeCoords[2]);
            glVertex3fv(g_fCubeCoords[6]);  glVertex3fv(g_fCubeCoords[7]);
        glEnd();
}

int main(int argc, char* argv[])
{
    initGraphics(argc, argv);
    startRendering();
    return 0;
}

void initGraphics(int argc, char* argv[])
{
    glutInit( &argc, argv );    // Start GLUT with command line arguments
    glutInitDisplayMode( GLUT_DOUBLE | GLUT_RGB );  // Set up the display mode
    glutInitWindowSize( 500, 500 );  // Set window init size
    glutInitWindowPosition( 0, 0 );  // Set window init position
    glutCreateWindow( "Humanoide con cubos" );  // Create the window with the string as its name

    // GLUT rendering functions
    glutReshapeFunc(reshape);
    glutKeyboardFunc(keyboard);
    glutDisplayFunc( display );  // Set up pointer functions
}

void startRendering()
{   
    glEnable(GL_DEPTH_TEST);
    // Start rendering
    glutMainLoop();
}

void reshape(int w, int h)
{
    glViewport(0, 0, (GLsizei)w, (GLsizei)h);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluPerspective(100.0f, (GLfloat)w/(GLfloat)h, 0.1, 100);
}

void display()
{
    static int i = 0;

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();

    glPushMatrix();
        glTranslatef(0.0f, 0.0f, transZ);
        glRotatef(angleX, 1.0f, 0.0f, 0.0f);
        glRotatef(angleY, 0.0f, 1.0f, 0.0f);
        glRotatef(angleZ, 0.0f, 0.0f, 1.0f);
        //torso
        glColor3f(.3,.9,0);
        dibujaCubof(3,4,1);
        //pierna izquierda
        glColor3f(0.0f,0.5f,0.1f);
        glTranslatef (1,-3.5,0);       
        dibujaCubof(1,3,1);     
        //pierna derecha
        glTranslatef(-2,0,0);
        dibujaCubof(1,3,1);
        //espinillas
        glTranslatef(0,-3,0);
        dibujaCubof(1.5,3.5,1.5);
        glTranslatef(2,0,0);
        dibujaCubof(1.5,3.5,1.5);       
        //PIES
        glColor3f(1,1,1);
        glTranslatef(.25,-2,.25);
        dibujaCubof(2,.5,2);   
       
        glTranslatef(-2.5,0,0);
        dibujaCubof(2,.5,2);
        //cabeza
        glTranslatef(1.25,11.5,0);
        dibujaCubof(2,2,2);
        //brazos
        glColor3f(0.0f,0.5f,0.1f);
        glTranslatef(2.75,-2,-.25);
        dibujaCubof(2.5,1,1);
        glTranslatef(-5.5,0,0);
        dibujaCubof(2.5,1,1);
        //codos
        glColor3f(1,1,1);
        glTranslatef(-1.75,0,0);
        dibujaCubof(1,1.4,1.4);
        glTranslatef(9,0,0);
        dibujaCubof(1,1.4,1.4);
        //manos
        glColor3f(0.0f,0.5f,0.1f);
        glTranslatef(1,0,0);
        dibujaCubof(1,1,1);
        glTranslatef(-11,0,0);
        dibujaCubof(1,1,1);
       glPopMatrix();

    glutSwapBuffers();
}

void keyboard(unsigned char key, int x, int y)
{
    switch(key)
    {
        case 27:
            exit(0);
        case 'w':
            angleX += 1.0f;
            break;
        case 'W':
            angleX -= 1.0f;
            break;
        case 's':
            angleZ += 1.0f;
            break;
        case 'S':
            angleZ -= 1.0f;
            break;
        case 'a':
            angleY += 1.0f;
            break;
        case 'A':
            angleY -= 1.0f;
            break;
        case 'z':
            transZ += 0.1f;
            break;
        case 'Z':
            transZ -= 0.1f;
            break;
        default:
            break;
    }
    glutPostRedisplay();
}

g++ -o humanoide humanoide.cpp -lglut -lGLU -lG
./humanoide