You can''t name your function "update/draw"; that''s illegal in C/C++. You can only use numbers and letters and the underscore character. Your name can start with the under score or letter, but it cannot start with a number. Do you understand!

hmmm this was actualy something i was wondering myself, heres what i had so far...

//global things...
camera g_Camera //my camera, controls the view and such
projectile *bullet=NULL;

//projectile class
class projectile
{
public:
projectile();
projectile(vector3 starposition, vector3 startvelocity, vector3 startacceleration, unsigned int startlife);
void update();
unsigned int life;
private:
vector3 position;
vector3 velocity;
vector3 acceleration;

};

projectile:rojectile()
{
position.x=0;
position.y=0;
position.z=0;
velocity.x=0;
velocity.y=0;
velocity.z=0;
acceleration.x=0;
acceleration.y=0;
acceleration.z=0;
life=1000;
}

projectile:rojectile(vector3 startposition, vector3 startvelocity, vector3 startacceleration, unsigned int startlife)
{
position=startposition;
velocity=startvelocity;
acceleration=startacceleration;
life=startlife;
}

void projectile::update()
{
glBegin(GL_QUADS);

glColor3ub(255,0,0);
glVertex3f(position.x-1,position.y+1,position.z);
glVertex3f(position.x+1,position.y+1,position.z);
glVertex3f(position.x+1,position.y-1,position.z);
glVertex3f(position.x-1,position.y-1,position.z);

velocity=velocity+acceleration;
position=position+velocity;

life--;
glEnd();
}


//WinProc, this is where i check to see if Z has been pressed to fire the projectile

LRESULT CALLBACK WinProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
LONG lRet=0;
PAINTSTRUCT ps;

switch (uMsg)
{
case WM_SIZE: if (!g_bFullScreen)
{
SizeOpenGLScreen(LOWORD(lParam),HIWORD(lParam));
GetClientRect(hWnd,&g_rRect);
}
break;
case WM_PAINT: BeginPaint(hWnd,&ps);
EndPaint(hWnd,&ps);
break;
case WM_KEYDOWN: switch (wParam)
{
case VK_ESCAPE: PostQuitMessage(0);
break;

case ''Z'': if (bullet==NULL)
{
vector3 sposition;
sposition.x=g_Camera.view.x-g_Camera.position.x;
sposition.y=g_Camera.view.y-g_Camera.position.y;
sposition.z=g_Camera.view.z-g_Camera.position.z;
vector3 svelocity;
svelocity.x=0;
svelocity.y=0;
svelocity.z=0.1f;
vector3 sacceleration;
sacceleration.x=0;
sacceleration.y=0;
sacceleration.z=0.0;
bullet=new projectile(sposition,svelocity,sacceleration,100);
}
break;

}
break;
case WM_CLOSE: PostQuitMessage(0);
break;
default: lRet=DefWindowProc(hWnd,uMsg,wParam,lParam);
break;
}

return lRet;
}

//function that does the drawing for the entire environment
void RenderScene()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glLoadIdentity();

gluLookAt(g_Camera.position.x,g_Camera.position.y,g_Camera.position.z,g_Camera.view.x,g_Camera.view.y,g_Camera.view.z,g_Camera.upvector.x,g_Camera.upvector.y,g_Camera.upvector.z);

//draw scene here
// wireframecube(1,0,0,0,255,0,0);
// wireframecube(2,0,0,0,0,255,0);
// wireframecube(3,0,0,0,0,0,255);

// trianglematrix(6,2,0,0,0);

if (bullet!=NULL)
{
bullet->update();
if (bullet->life<=0)
{
delete bullet;
bullet=NULL;
}
}



SwapBuffers(g_hDC);
}

it sorta works, it doesnt go in the direction i hoped, but hey, its a start at making projectiles =P

Bungo!

lol changed it so under the update function this is what is used...

glVertex3f(position.x-0.1f,position.y+0.1f,position.z);
glVertex3f(position.x+0.1f,position.y+0.1f,position.z);
glVertex3f(position.x+0.1f,position.y-0.1f,position.z);
glVertex3f(position.x-0.1f,position.y-0.1f,position.z);

makes the square smaller, which actualy seems to make a difference

now to figure out how to make it go forward lol
and how to make it stop once it goes out too far =P

Bungo!

oh, and while im thinkin about it, how would i go about making it so i didnt necessarily have to have a global pointer, or even a global array (for multiple projectiles). i cant really see a way to do it, cause itd have to be created in the RenderScene() function, and that function is called by another function that uses an infinate loop (to continualy draw the scene). so im at a loss as to how else it could be done, but i know there has got to be a way, cause if there isnt then itd get very messy when you had for example, multiple characters firing multiple shots =/ bah!

Bungo!

i thought about using vectors (along with a queue of some sort), i dont know what a singleton is, but ive at least heard of them, ill look into them and see if that helps in the slightest

Bungo!

i took your idea on singletons and tried to impliment it, most of it seems to work, but one function (which you wrote)...

void projectilemanager::update()
{
for(it=projectileslist.begin();it!=projectileslist.end();it++)
{
it->update();
}
}

i think i see what that function does, it sets the iterator vector to the begining of the projectile vector. then it goes through each one in the list, then updates it. seems ok, except it gives me the following errors:

--------------------Configuration: Camera2 - Win32 Debug--------------------
Compiling...
Main.cpp
c:\program files\microsoft visual studio\my projects\miscellaneous\camera part 2\main.cpp(177) : error C2660: ''addprojectile'' : function does not take 3 parameters
projectilemanager.cpp
c:\program files\microsoft visual studio\my projects\miscellaneous\camera part 2\projectilemanager.cpp(35) : error C2679: binary ''='' : no operator defined which takes a right-hand operand of type ''class projectile *'' (or there is no acceptable conve
rsion)
c:\program files\microsoft visual studio\my projects\miscellaneous\camera part 2\projectilemanager.cpp(35) : error C2678: binary ''!='' : no operator defined which takes a left-hand operand of type ''class std::vectortor >'' (or there is no acceptable conversion)
c:\program files\microsoft visual studio\my projects\miscellaneous\camera part 2\projectilemanager.cpp(35) : error C2676: binary ''++'' : ''class std::vector >'' does not define this operator or a
conversion to a type acceptable to the predefined operator
c:\program files\microsoft visual studio\my projects\miscellaneous\camera part 2\projectilemanager.cpp(37) : error C2819: type ''std::vector >'' does not have an overloaded member ''operator ->''
c:\program files\microsoft visual studio\my projects\miscellaneous\camera part 2\projectilemanager.cpp(37) : error C2227: left of ''->update'' must point to class/struct/union
Error executing cl.exe.

Camera2.exe - 6 error(s), 0 warning(s)

seems to have to do with the STL vector lacking those overloaded operators or something... im not totaly sure how to fix this cause i am only just understanding the whole process here...

here is the class i have going so far (the projectile manager singleton)

//projectilemanager.h
#ifndef _projectile_manager_h
#define _projectile_manager_h

#include <vector>

class projectilemanager
{
public:
~projectilemanager();
static projectilemanager* create();
void addprojectile(vector3 sposition, vector3 svelocity, vector3 sacceleration, int slife);
void update();
private:
projectilemanager();
static bool flag;
static projectilemanager *instance;
std::vector projectileslist;
std::vector it;
};

#endif


//projectilemanager.cpp
#include "main.h"

bool projectilemanager::flag=false;
projectilemanager* projectilemanager::instance=NULL;

projectilemanager:rojectilemanager()
{

}

projectilemanager::~projectilemanager()
{
flag=false;
}

projectilemanager* projectilemanager::create()
{
if (!flag)
{
flag=true;
instance=new projectilemanager;
}

return instance;
}

void projectilemanager::addprojectile(vector3 sposition, vector3 svelocity, vector3 sacceleration, int slife)
{
projectile newprojectile(sposition,svelocity,sacceleration,slife);
it.push_back(newprojectile);
}

void projectilemanager::update()
{
for(it=projectileslist.begin();it!=projectileslist.end();it++)
{
it->update();
}
}


//inside main.cpp (the file with all the global functions and fun stuff
#include "main.h" //where #include "projectilemanager.h" can be found (just so you know)

projectilemanager *projectiles=projectilemanager::create();

//under WinProc
case ''Z'': vector3 sposition;
sposition.x=g_Camera.view.x-g_Camera.position.x;
sposition.y=g_Camera.view.y-g_Camera.position.y;
sposition.z=g_Camera.view.z-g_Camera.position.z;
vector3 svelocity;
svelocity.x=0.0f;
svelocity.y=0.0f;
svelocity.z=-0.1f;
vector3 sacceleration;
sacceleration.x=0.0f;
sacceleration.y=0.0f;
sacceleration.z=0.0f;
projectiles->addprojectile(sposition,svelocity,sacceleration,100);
break;

//under the RenderScene() function, the function that updates continualy draws everything

projectiles->update();


i think thats all the relevant code =P

Bungo!

i kinda figured it was worth a shot...

for (int x=0;x {
projectileslist[x].update();
}

didnt work =/

Bungo!