Quote:Original post by boolai
So what is the best way to pass a class to a function?

Depends. For your function, constant references will be fine. Post your function definition (or the calling line, if that's where c2061 occurs).

Ok here is my function. I am trying to do the collsion detection from one of the articles. I am trying to learn to so I can modify it.

#ifndef _CCOLLISON_H_
#define _CCOLLISON_H_

/*Includes*/
#include "global.h"


class cCollison
{
public:
cCollison(void);
~cCollison(void);

//Functions
int DetectCollisionVer1(cSprite &p_sprite1,cSprite &p_sprite2);

private:
int m_left1;
int m_left2;
int m_right1;
int m_right2;
int m_top1;
int m_top2;
int m_bottom1;
int m_bottom2;

};
#endif //end of file

here is the defination
int cCollison::DetectCollisionVer1(cSprite &p_sprite1, cSprite &p_sprite2)
{
//Set the attributes //meaning were are going to record the object stats
//sprite1 first then sprite2
m_left1 = p_sprite1.GetXpos();
m_left2 = p_sprite2.GetXpos();
m_right1 = p_sprite1.GetXpos() + p_sprite1.GetWidth();
m_right2 = p_sprite2.GetXpos() + p_sprite2.GetWidth();
m_top1 = p_sprite1.GetYpos();
m_top2 = p_sprite2.GetYpos();
m_bottom1 = p_sprite1.GetYpos() + p_sprite1.GetHeight();
m_right2 = p_sprite2.GetYpos() + p_sprite2.GetHeight();

//The following is not a collision so disregard
if (m_bottom1 < m_top2) return(0);
if (m_top1 > m_bottom2) return(0);

if (m_right1 < m_left2) return(0);
if (m_left1 > m_right2) return(0);


return (1);
}//end of function

the Error appears here: error C2061: syntax error : identifier 'cSprite'
appears at the declaration of the DetectCollisionVer1() method

Yes I have it in the header file called global.h

In the code you posted above, csprite.h includes global.h. You'll need to include csprite.h in ccollision.h in order to reference your cSprite class.