EvilZone

Programming and Scripting => C - C++ => : Zer0Flag September 02, 2011, 11:57:16 PM

: [C]OpenGLDemo.1
: Zer0Flag September 02, 2011, 11:57:16 PM

Hey ,

I played a bit with OpenGL and here is the result. First time that I coded with OpenGL so don***180;t freak out if its worse :).
http://www.youtube.com/watch?v=MmvviVVdkzE (http://www.youtube.com/watch?v=MmvviVVdkzE)

:

//Zer0Flag @ drunken-nanomites.org

#include <Windows.h>
#include <gl/GL.h>
#include <gl/GLU.h>
#include <GL/glut.h>
#include <iostream>
#include <time.h>

using namespace std;

float fRotation[20] = { 0.0f };
float fKoordSize = 60.0f;
float fJump = 0.0f;

time_t ExecutionTime = NULL;

void changeSize(int iWidth, int iHeight) {
if (iHeight <= 0)
{
iHeight = 1;
}

float ratio =  iWidth / iHeight;

glViewport(0, 0, iWidth, iHeight);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0f, ratio, 0.1f, 100.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}

void renderScene(void) {
Sleep(50);

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

time_t CurrentTime = time(NULL);
long ullCurrentTicks = CurrentTime - ExecutionTime;

if (ullCurrentTicks <= 11)
{
switch (ullCurrentTicks)
{
case 1:
for ( int Ix = 0 ; Ix <= 4; Ix += 4)
{
for ( int Iy = 0; Iy <= 4; Iy += 4)
{
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef(((fKoordSize/2) - 8)* (-1) + Ix,((fKoordSize/2) - 8)* (-1) + Iy,0);
glutWireCube(2.0);
}
}
break;
case 2:
for ( int Ix = 0 ; Ix <= 8; Ix += 4)
{
for ( int Iy = 0; Iy <= 8; Iy += 4)
{
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef(((fKoordSize/2) - 8)* (-1) + Ix,((fKoordSize/2) - 8)* (-1) + Iy,0);
glutWireCube(2.0);
}
}
break;
case 3:
for ( int Ix = 0 ; Ix <= 12; Ix += 4)
{
for ( int Iy = 0; Iy <= 12; Iy += 4)
{
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef(((fKoordSize/2) - 8)* (-1) + Ix,((fKoordSize/2) - 8)* (-1) + Iy,0);
glutWireCube(2.0);
}
}
break;
case 4:
for ( int Ix = 0 ; Ix <= 16; Ix += 4)
{
for ( int Iy = 0; Iy <= 16; Iy += 4)
{
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef(((fKoordSize/2) - 8)* (-1) + Ix,((fKoordSize/2) - 8)* (-1) + Iy,0);
glutWireCube(2.0);
}
}
break;
case 5:
for ( int Ix = 0 ; Ix <= 20; Ix += 4)
{
for ( int Iy = 0; Iy <= 20; Iy += 4)
{
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef(((fKoordSize/2) - 8)* (-1) + Ix,((fKoordSize/2) - 8)* (-1) + Iy,0);
glutWireCube(2.0);
}
}
break;
case 6:
for ( int Ix = 0 ; Ix <= 24; Ix += 4)
{
for ( int Iy = 0; Iy <= 24; Iy += 4)
{
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef(((fKoordSize/2) - 8)* (-1) + Ix,((fKoordSize/2) - 8)* (-1) + Iy,0);
glutWireCube(2.0);
}
}
break;
case 7:
for ( int Ix = 0 ; Ix <= 28; Ix += 4)
{
for ( int Iy = 0; Iy <= 28; Iy += 4)
{
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef(((fKoordSize/2) - 8)* (-1) + Ix,((fKoordSize/2) - 8)* (-1) + Iy,0);
glutWireCube(2.0);
}
}
break;
case 8:
for ( int Ix = 0 ; Ix <= 32; Ix += 4)
{
for ( int Iy = 0; Iy <= 32; Iy += 4)
{
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef(((fKoordSize/2) - 8)* (-1) + Ix,((fKoordSize/2) - 8)* (-1) + Iy,0);
glutWireCube(2.0);
}
}
break;
case 9:
for ( int Ix = 0 ; Ix <= 36; Ix += 4)
{
for ( int Iy = 0; Iy <= 36; Iy += 4)
{
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef(((fKoordSize/2) - 8)* (-1) + Ix,((fKoordSize/2) - 8)* (-1) + Iy,0);
glutWireCube(2.0);
}
}
break;
case 10:
for ( int Ix = 0 ; Ix <= 40; Ix += 4)
{
for ( int Iy = 0; Iy <= 40; Iy += 4)
{
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef(((fKoordSize/2) - 8)* (-1) + Ix,((fKoordSize/2) - 8)* (-1) + Iy,0);
glutWireCube(2.0);
}
}
break;
case 11:
for ( int Ix = 0 ; Ix <= 44; Ix += 4)
{
for ( int Iy = 0; Iy <= 44; Iy += 4)
{
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef(((fKoordSize/2) - 8)* (-1) + Ix,((fKoordSize/2) - 8)* (-1) + Iy,0);
glutWireCube(2.0);
}
}
break;
}
}
if (ullCurrentTicks > 11 && ullCurrentTicks <= 18)
{
int i = 0;

for ( int Ix = 0 ; Ix <= 60 ; Ix += 4)
{
for(int Iy = 0 ; Iy <= 60 ; Iy += 4)
{
fJump = (((rand() % 8) + 1 ));
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef((fKoordSize/2 * (-1)) + Ix,(fKoordSize/2 * (-1)) + Iy,fJump);
glutWireCube(2.0);
}
}
}
if (ullCurrentTicks > 18 && ullCurrentTicks <= 25)
{
int i = 0;

for ( int Ix = 0 ; Ix <= 60 ; Ix += 4)
{
for(int Iy = 0 ; Iy <= 60 ; Iy += 4)
{
fJump = (((rand() % 8) + 1 ));
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
glTranslatef((fKoordSize/2 * (-1)) + Ix,(fKoordSize/2 * (-1)) + Iy,fJump);
glRotatef(fRotation[i],1.0f,1.0f,0.0f);
glutWireCube(2.0);

fRotation[i++] += 1.0f;
}
}
}
if (ullCurrentTicks > 25 && ullCurrentTicks <= 32)
{
int i = 0;

for ( int Ix = 0 ; Ix <= 60 ; Ix += 4)
{
for(int Iy = 0 ; Iy <= 60 ; Iy += 4)
{
fJump = (((rand() % 8) + 1 ));
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
gluLookAt(0.0f, 0.0f,fKoordSize,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);

switch ((((rand() % 30) + 10) /10))
{
case 1:
glColor3f(0.5f,0.0f,0.0f);
break;
case 2:
glColor3f(0.0f,0.5f,0.0f);
break;
case 3:
glColor3f(0.0f,0.0f,0.8f);
break;
}

glTranslatef((fKoordSize/2 * (-1)) + Ix,(fKoordSize/2 * (-1)) + Iy,fJump);
glRotatef(fRotation[i],1.0f,1.0f,0.0f);
glutWireCube(2.0);

fRotation[i++] += 1.0f;
}
}
}
if(ullCurrentTicks > 32)
{

}
glutSwapBuffers();
}

void processNormalKeys(unsigned char key, int x, int y) {
if (key == 27) // Exit on ESC
{
exit(0);
}
}

void main(int argc, char **argv) {

ExecutionTime = time(NULL);


glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);
glutInitWindowPosition(100,100);
glutInitWindowSize(320,320);
glutCreateWindow("OpenGL Tests");

glutDisplayFunc(renderScene);
glutReshapeFunc(changeSize);
glutIdleFunc(renderScene);

glutKeyboardFunc(processNormalKeys);

glutMainLoop();
}
~0

: Re: [C]OpenGLDemo.1
: ande September 03, 2011, 12:56:23 AM

Pretty good, I tried openGL a few years back. Couldn't do more than draw a square on the screen ;)

: Re: [C]OpenGLDemo.1
: Huntondoom September 13, 2011, 11:49:18 PM

sorry I have never used OpenGl, how did you install it? (sorry for the noobis question)
I checked the site but I saw so much things to download. I just don't now where to start...

: Re: [C]OpenGLDemo.1
: Kulverstukas September 14, 2011, 07:19:15 AM

: Huntondoom  September 13, 2011, 11:49:18 PM

<..>(sorry for the noobis question) <..>

God.. people should STOP admitting that they are "noobs" and calling themselves names. Everyone is equal and everyone has more experience then the other in some other fields and not just coding :(

: Re: [C]OpenGLDemo.1
: iMorg September 18, 2011, 03:34:41 AM

: Huntondoom  September 13, 2011, 11:49:18 PM

sorry I have never used OpenGl, how did you install it? (sorry for the noobis question)
I checked the site but I saw so much things to download. I just don't now where to start...

Using glut is pretty much the easiest way to start writing opengl software. You just download the library, put the headers into your compilers "gl" header path and have your project link to the libraries.

This will get you started
http://www.gamedev.net/page/resources/_/reference/programming/sweet-snippets/basics-of-glut-r1680 (http://www.gamedev.net/page/resources/_/reference/programming/sweet-snippets/basics-of-glut-r1680)

v1 of the opengl red book is also available online if you dont want to go download the new editions.

: Re: [C]OpenGLDemo.1
: Huntondoom September 18, 2011, 10:21:11 AM

: iMorg  September 18, 2011, 03:34:41 AM

Using glut is pretty much the easiest way to start writing opengl software. You just download the library, put the headers into your compilers "gl" header path and have your project link to the libraries.

This will get you started
http://www.gamedev.net/page/resources/_/reference/programming/sweet-snippets/basics-of-glut-r1680 (http://www.gamedev.net/page/resources/_/reference/programming/sweet-snippets/basics-of-glut-r1680)

v1 of the opengl red book is also available online if you dont want to go download the new editions.

Thank you very much!

: Re: [C]OpenGLDemo.1
: john_engit December 01, 2011, 11:04:57 AM

awesome  :)

: Re: [C]OpenGLDemo.1
: PublicEnemy December 01, 2011, 08:04:22 PM

: Kulverstukas  September 14, 2011, 07:19:15 AM

God.. people should STOP admitting that they are "noobs"

Exactly, don't call yourself a noob - that is my job.