Hi , I dont know alot of the technical jargon behind programming so ill try explain my problem . Im using glut and openGL . I have a prototype function which draws a dot on the screen . Now i want to make an explosion effect , i get to a point though where i run into problems , where i need to allocate a group of say 20 of the dot functions into memory . I do this by going

class DotObj{
public:
Dot()
{
...
}
}

and then going :
DotObj bits[20]

now i have no idea what to do . am i on the right track . thanks for your help , i hope you will be able to help , thanks again

That creates 20 DotObj's. What is your question now?

Actually that creates a compile error...teehee...but really I don't understand the problem you're having. That code should work fine in creating 20 DotObjs (and therefore 20 DotObj::Dot() functions)... wasn't that your objective? In terms of making an "explosion effect", that's very vague, and could potentially be very easy or extremely complicated depending on how detailed you wish to make it. My suggestion is that if you want to make an explosion then you create a small video file of an explosion (or download it from some site) and use OpenGL to play it.

That creates a big error, because the constructor _must_ have the same name as the class, i.e.

class DotObj
{
    public:
        DotObj() { ... }
}