Auto Gen Vertices not working? - c++

Question

I am creating a program using opengl to define 4 vertices (creating a box) and then shifting it over and generating a new one effectively creating a larger box of smaller boxes. But when I run it, the vertices go crazy and I reduced it down so you guys can understand what I mean. I want it to be 3 seperate boxes but using wireframe you can clearly tell that it is 2 boxes connected by one.
Here is my code:
#include "stdafx.h"
#include <GL/freeglut.h>
#include <GLFW/glfw3.h>
#include <glm/glm.hpp>
#include <glm/gtc/type_ptr.hpp>
#include <iostream>
#include <GL/glut.h>
using namespace std;
//variables
const float bork = 0.2;
const float blep = -0.2;
float a = 0.2;
float b = -0.2;
float c = 0.2;
float d = -0.2;
float e = 0.2;
float f = -0.2;
float i = 0.2;
float h = 0.2;
float x = 0;
float y = 0;
float z = 0;
float r = 0;
float g = 0;
float u = 0;
float base = 0;
void stopGen() {
cout << "stopped generating" << endl;
}
//Functions for generating he vertices!
void generateVerticesYu() {
glVertex2f(bork, c);
glVertex2f(bork, d);
glVertex2f(blep, c);
glVertex2f(blep, d);
glColor3ub(r, g, u);
}
void generateVerticesXr() {
glVertex2f(e, c);
glVertex2f(e, d);
glVertex2f(f, c);
glVertex2f(f, d);
glColor3ub(r, g, u);
}
void generateVerticesXl() {
glVertex2f(a, c);
glVertex2f(a, d);
glVertex2f(b, c);
glVertex2f(b, d);
glColor3ub(r, g, u);
}
void generateVerticesYd() {
glVertex2f(bork, c);
glVertex2f(bork, d);
glVertex2f(blep, c);
glVertex2f(blep, d);
glColor3ub(r, g, u);
}
//Keybinds for wireframe and camera movement
void special(int key, int, int)
{
const float step = 0.1;
if (GLUT_KEY_LEFT == key)//camera left
x -= step;
if (GLUT_KEY_RIGHT == key)//camera right
x += step;
if (GLUT_KEY_UP == key)//camera up
y += step;
if (GLUT_KEY_DOWN == key)//camera down
y -= step;
if (GLUT_KEY_SHIFT_L == key)//wireframe ON
cout << "Wireframe Enabled" << endl;
/*
if (GLUT_KEY_CTRL_L == key)//wireframe OFF
//glPolygonMode(GL_FRONT, GL_FILL);
glPolygonMode(GL_BACK, GL_FILL);
glPolygonMode(GL_FRONT, GL_FILL);
cout << "Wireframe Disabled" << endl;
*/
if (GLUT_KEY_END == key)//RED rgb value UP
++r;
cout << "Red:";
cout << r << endl;
if ((GLUT_KEY_END + GLUT_KEY_SHIFT_R) == key)//RED rgb value DOWN
--r;
if (GLUT_KEY_PAGE_UP == key)//GREEN rgb value UP
++g;
if ((GLUT_KEY_PAGE_UP + GLUT_KEY_SHIFT_R) == key)//GREEN rgb value DOWN
--g;
if (GLUT_KEY_PAGE_DOWN == key)//BLUE rgb value UP
++u;
if ((GLUT_KEY_PAGE_DOWN + GLUT_KEY_SHIFT_R) == key)//BLUE rgb value DOWN
--u;
glutPostRedisplay();
}
//renders the vertices
void display()
{
glPolygonMode(GL_FRONT, GL_LINE);
glPolygonMode(GL_BACK, GL_LINE);
glClearColor(0.5, 0.5, 0.5, 1);
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-2, 2, -2, 2, -1, 1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(x, y, z);
//actual rendering starts here
glBegin(GL_TRIANGLE_STRIP);
if (base != 5) {
base += 1;
generateVerticesXl();
a -= 0.4;
cout << "a:";
cout << (a) << endl;
b -= 0.4;
cout << "b:";
cout << (b) << endl;
generateVerticesXr();
e += 0.4;
cout << "e";
cout << (e) << endl;
f += 0.4;
cout << "f";
cout << (f) << endl;
}
/* do {
generateVerticesYd();
c += 0.4;
cout << "c:";
cout << (c) << endl;
d += 0.4;
cout << "d:";
cout << (d) << endl;
generateVerticesYu();
i += 0.4;
cout << "i";
cout << (i) << endl;
h += 0.4;
cout << "h";
cout << (h) << endl;
} while (base != 6);*/
glEnd();
glutSwapBuffers();
}
//main loop for everything!
int main(int argc, char* argv[])
{
glutInit(&argc, argv);
glutInitWindowSize(600, 600);
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE);
glutCreateWindow("McDank");
glutSpecialFunc(special);
glutDisplayFunc(display);
//glutIdleFunc();<----TO BE DETERMINED!
glutMainLoop();
return 0;
}
There may be better ways of doing this but this is how I want to do it right now, but im getting this: screenshot
Also, if I press any key, it expands it like it is trying to generate another square: screenshot2