title: Getting wide range of type errors in C++
body: <p>Here is the important part of my program which I am getting wide range of type errors. I am trying to make a Array of Objects to use as something like Struct to just hold data.</p>
  
  <p>Any help?</p>
  
  <pre><code>static Object ObjectArray[NUMBER_OF_OBJECTS];
  
  class Object
  {
  public:
      float X;
      float Y;
      float Z;
      int id;
  };
  
  
  void createObjects(){
      for (int i = 0; i &lt; NUMBER_OF_OBJECTS; i++){
          Object obj;
          obj.X = rand() % 13 - 6;
          obj.Y = 0;
          obj.Z = rand() % 13 - 6;
          obj.id = i;
          ObjectArray[i] = obj;
      }
  }
  
  void randomizeObjects(){
      for (int i = 0; i &lt; NUMBER_OF_OBJECTS; i++){
          ObjectArray[i].X += rand() % 3 - 1;
          ObjectArray[i].Z += rand() % 3 - 1;
  
          if (ObjectArray[i].X &gt; 6)
              ObjectArray[i].X--;
          if (ObjectArray[i].X &lt; -6)
              ObjectArray[i].X++;
          if (ObjectArray[i].Z &gt; 6)
              ObjectArray[i].Z--;
          if (ObjectArray[i].Z &lt; -6)
              ObjectArray[i].Z++;
      }
  }
  
  void drawObjects(){
      for (int i = 0; i &lt; NUMBER_OF_OBJECTS; i++){
          ObjectArray[i].X += rand() % 3 - 1;
          ObjectArray[i].Z += rand() % 3 - 1;
  
          glPushMatrix();
          glTranslatef(ObjectArray[i].X, ObjectArray[i].Y, ObjectArray[i].Z);
          glutSolidSphere(0.5, 10, 10);
          glPopMatrix();
      }
  }
  </code></pre>
  
  <p>Here is the error:</p>
  
  <pre><code>Error   2   error C4430: missing type specifier - int assumed. Note: C++ does not support default-int   c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 32  1   CS459-HW4
  Error   29  error C2660: 'glTranslatef' : function does not take 1 arguments    c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 77  1   CS459-HW4
  Error   10  error C2228: left of '.Z' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 49  1   CS459-HW4
  Error   15  error C2228: left of '.Z' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 58  1   CS459-HW4
  Error   20  error C2228: left of '.Z' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 64  1   CS459-HW4
  Error   21  error C2228: left of '.Z' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 65  1   CS459-HW4
  Error   22  error C2228: left of '.Z' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 66  1   CS459-HW4
  Error   23  error C2228: left of '.Z' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 67  1   CS459-HW4
  Error   25  error C2228: left of '.Z' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 74  1   CS459-HW4
  Error   28  error C2228: left of '.Z' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 77  1   CS459-HW4
  Error   8   error C2228: left of '.Y' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 48  1   CS459-HW4
  Error   27  error C2228: left of '.Y' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 77  1   CS459-HW4
  Error   6   error C2228: left of '.X' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 47  1   CS459-HW4
  Error   14  error C2228: left of '.X' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 57  1   CS459-HW4
  Error   16  error C2228: left of '.X' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 60  1   CS459-HW4
  Error   17  error C2228: left of '.X' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 61  1   CS459-HW4
  Error   18  error C2228: left of '.X' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 62  1   CS459-HW4
  Error   19  error C2228: left of '.X' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 63  1   CS459-HW4
  Error   24  error C2228: left of '.X' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 73  1   CS459-HW4
  Error   26  error C2228: left of '.X' must have class/struct/union  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 77  1   CS459-HW4
  Error   12  error C2228: left of '.id' must have class/struct/union c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 50  1   CS459-HW4
  Error   1   error C2146: syntax error : missing ';' before identifier 'ObjectArray' c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 32  1   CS459-HW4
  Error   3   error C2146: syntax error : missing ';' before identifier 'obj' c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 46  1   CS459-HW4
  Error   4   error C2065: 'obj' : undeclared identifier  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 46  1   CS459-HW4
  Error   5   error C2065: 'obj' : undeclared identifier  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 47  1   CS459-HW4
  Error   7   error C2065: 'obj' : undeclared identifier  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 48  1   CS459-HW4
  Error   9   error C2065: 'obj' : undeclared identifier  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 49  1   CS459-HW4
  Error   11  error C2065: 'obj' : undeclared identifier  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 50  1   CS459-HW4
  Error   13  error C2065: 'obj' : undeclared identifier  c:\users\amir-acer\documents\visual studio 2013\projects\cs459-hw4\cs459-hw4\source.cpp 51  1   CS459-HW4
  </code></pre>
  
  <p>Here is the complete source code:</p>
  
  <pre><code>#include &lt;GL/glut.h&gt;
  #include &lt;math.h&gt;
  #include &lt;stdio.h&gt;
  #include &lt;stdlib.h&gt;
  
  #define NUMBER_OF_OBJECTS 10
  #define PI 3.14159265
  static int step = 0;
  
  static float alpha = 0.0;
  static float beta = PI / 6.0;
  
  static GLdouble cpos[3];
  static GLfloat lpos[] = { -3.5, 3.5, 3.5, 1.0 };
  static GLfloat black[] = { 0.0, 0.0, 0.0, 1.0 };
  static GLfloat white[] = { 1.0, 1.0, 1.0, 1.0 };
  static GLfloat gray[] = { 0.5, 0.5, 0.5, 1.0 };
  static GLfloat red[] = { 1.0, 0.0, 0.0, 1.0 };
  static GLfloat green[] = { 0.0, 1.0, 0.0, 1.0 };
  static GLfloat blue[] = { 0.0, 0.0, 1.0, 1.0 };
  static GLfloat yellow[] = { 1.0, 1.0, 0.0, 1.0 };
  static GLfloat magenta[] = { 1.0, 0.0, 1.0, 1.0 };
  static GLfloat cyan[] = { 0.0, 1.0, 1.0, 1.0 };
  static GLfloat darkcyan[] = { 0.0, 0.4, 0.4, 1.0 };
  static GLfloat gold[] = { 255.0 / 255.0, 215.0 / 255.0, 0 / 255.0 };
  static GLfloat silver[] = { 204.0 / 255.0, 204.0 / 255.0, 204.0 / 255.0 };
  static bool trianglesExist = false;
  static float stepBefore = step;
  static float zoom = 10.0;
  static bool lightSource = true;
  
  static Object ObjectArray[NUMBER_OF_OBJECTS];
  
  class Object
  {
  public:
      float X;
      float Y;
      float Z;
      int id;
  };
  
  
  void createObjects(){
      for (int i = 0; i &lt; NUMBER_OF_OBJECTS; i++){
          Object obj;
          obj.X = rand() % 13 - 6;
          obj.Y = 0;
          obj.Z = rand() % 13 - 6;
          obj.id = i;
          ObjectArray[i] = obj;
      }
  }
  
  void randomizeObjects(){
      for (int i = 0; i &lt; NUMBER_OF_OBJECTS; i++){
          ObjectArray[i].X += rand() % 3 - 1;
          ObjectArray[i].Z += rand() % 3 - 1;
  
          if (ObjectArray[i].X &gt; 6)
              ObjectArray[i].X--;
          if (ObjectArray[i].X &lt; -6)
              ObjectArray[i].X++;
          if (ObjectArray[i].Z &gt; 6)
              ObjectArray[i].Z--;
          if (ObjectArray[i].Z &lt; -6)
              ObjectArray[i].Z++;
      }
  }
  
  void drawObjects(){
      for (int i = 0; i &lt; NUMBER_OF_OBJECTS; i++){
          ObjectArray[i].X += rand() % 3 - 1;
          ObjectArray[i].Z += rand() % 3 - 1;
  
          glPushMatrix();
          glTranslatef(ObjectArray[i].X, ObjectArray[i].Y, ObjectArray[i].Z);
          glutSolidSphere(0.5, 10, 10);
          glPopMatrix();
      }
  }
  
  
  void writemessage()
  {
  
  }
  
  void init(void)
  {
      writemessage();
      glClearColor(0.0, 0.0, 0.0, 0.0);
      glEnable(GL_DEPTH_TEST);
      glShadeModel(GL_SMOOTH);
      glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
      glEnable(GL_LIGHTING);
      glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
      glEnable(GL_LIGHT0);
  }
  
  
  
  void reshape(int w, int h)
  {
      glViewport(0, 0, (GLsizei)w, (GLsizei)h);
      glMatrixMode(GL_PROJECTION);
      glLoadIdentity();
      gluPerspective(75.0, (GLfloat)w / (GLfloat)h, 1.0, 25.0);
      glMatrixMode(GL_MODELVIEW);
  }
  
  
  void display(void)
  {
      static int i;
      static double angle1, angle2, angle3, angle4, Y1, Z1, Y2, Z2, X3, Y3, X4, Y4;
      static double angle5, angle6, angle7, angle8, X5, Y5, X6, Y6, X7, Y7, X8, Y8;
      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
      glLoadIdentity();
      cpos[0] = zoom * cos(beta) * sin(alpha);
      cpos[1] = zoom * sin(beta);
      cpos[2] = zoom * cos(beta) * cos(alpha);
      gluLookAt(cpos[0], cpos[1], cpos[2], 0.0, 1.0, 0.0, 0.0, 1.0, 0.0);
      if (lightSource == true){
          glLightfv(GL_LIGHT0, GL_POSITION, lpos);
          glMaterialfv(GL_FRONT, GL_EMISSION, white);
          glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 128);
          glPushMatrix();
          glTranslatef(lpos[0], lpos[1], lpos[2]);
          glutSolidSphere(0.1, 10, 8);
          glPopMatrix();
      }
  
      glMaterialfv(GL_FRONT, GL_EMISSION, black);
  
  
      glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
      glMaterialfv(GL_BACK, GL_AMBIENT_AND_DIFFUSE, blue);
      glNormal3f(0.0, 1.0, 0.0);
      glBegin(GL_POLYGON);
      glVertex3f(7.0, -0.001, -7.0);
      glVertex3f(-7.0, -0.001, -7.0);
      glVertex3f(-7.0, -0.001, 7.0);
      glVertex3f(7.0, -0.001, 7.0);
      glEnd();
  
  
      glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
      glMaterialfv(GL_BACK, GL_AMBIENT_AND_DIFFUSE, green);
      glMaterialfv(GL_BACK, GL_SPECULAR, green);
  
      drawObjects();
  
      glFlush();
      glutSwapBuffers();
  
  }
  
  
  void keyboard(unsigned char key, int x, int y)
  {
      static int polygonmode[2];
  
      switch (key) {
      case 27:
          exit(0);
          break;
      case 'w':
          glGetIntegerv(GL_POLYGON_MODE, polygonmode);
          if (polygonmode[0] == GL_FILL)
              glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
          else glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
          glutPostRedisplay();
          break;
      case 'x':
          if (lightSource == true)
              lpos[0] = lpos[0] + 0.2;
          glutPostRedisplay();
          break;
      case 'X':
          if (lightSource == true)
              lpos[0] = lpos[0] - 0.2;
          glutPostRedisplay();
          break;
      case 'y':
          if (lightSource == true)
              lpos[1] = lpos[1] + 0.2;
          glutPostRedisplay();
          break;
      case 'Y':
          if (lightSource == true)
              lpos[1] = lpos[1] - 0.2;
          glutPostRedisplay();
          break;
      case 'z':
          if (lightSource == true)
              lpos[2] = lpos[2] + 0.2;
          glutPostRedisplay();
          break;
      case 'Z':
          if (lightSource == true)
              lpos[2] = lpos[2] - 0.2;
          glutPostRedisplay();
          break;
      case '+':
          if (zoom != 1.5)zoom = zoom - 0.5;
          glutPostRedisplay();
          break;
      case '-':
          if (zoom != 15)zoom = zoom + 0.5;
          glutPostRedisplay();
          break;
      case '0':
          if (lightSource == true){
              glDisable(GL_LIGHT0);
              lightSource = false;
          }
          else{
              glEnable(GL_LIGHT0);
  
              lightSource = true;
          }
          glutPostRedisplay();
          break;
      default:
          break;
      }
  }
  void specialkey(GLint key, int x, int y)
  {
      switch (key) {
      case GLUT_KEY_RIGHT:
          alpha = alpha + PI / 180;
          if (alpha &gt; 2 * PI) alpha = alpha - 2 * PI;
          glutPostRedisplay();
          break;
      case GLUT_KEY_LEFT:
          alpha = alpha - PI / 180;
          if (alpha &lt; 0) alpha = alpha + 2 * PI;
          glutPostRedisplay();
          break;
      case GLUT_KEY_UP:
          if (beta &lt; 0.45*PI) beta = beta + PI / 180;
          glutPostRedisplay();
          break;
      case GLUT_KEY_DOWN:
          if (beta &gt; -0.05*PI) beta = beta - PI / 180;
          glutPostRedisplay();
          break;
      default:
          break;
      }
  }
  
  int main(int argc, char** argv)
  {
      glutInit(&amp;argc, argv);
      glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
      glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
      glutInitWindowSize(800, 800);
      glutInitWindowPosition(100, 100);
      glutCreateWindow(argv[0]);
      init();
      glutDisplayFunc(display);
      glutReshapeFunc(reshape);
      glutKeyboardFunc(keyboard);
      glutSpecialFunc(specialkey);
      glutMainLoop();
      return 0;
  }
  </code></pre>