here is my code

  
class WorldEntityList;
class WorldEntity;
class WorldTree;

class WorldEntity {

	public:

		/* transformation vectors */
		GLfloat transform[3];
		GLfloat rotate[3];
		int rot_angle;
		GLfloat scale[3];

		ObjectList * object_list;
		WorldEntityList * child_entities;

		char * name;
		WorldEntity * next;

		WorldEntity(char * n) :  name(n) {
			transform[0] = 0.0;
			transform[1] = 0.0;
			transform[2] = 0.0;

			rot_angle = 0; // should this be a float


			rotate[0] = 0.0;
			rotate[1] = 0.0;
			rotate[2] = 1.0;

			scale[0] = 1.0;
			scale[1] = 1.0;
			scale[2] = 1.0;

			object_list = NULL;

			object_list = new ObjectList();
------>			child_entities = new WorldEntityList();
		}

		~WorldEntity() {}

		// depending on the object we will have one or more extra parameters

		void SetObject(char *, char *, char *, ...); 
		void SetTranslate(GLfloat, GLfloat, GLfloat);
		void SetRotate(int, GLfloat, GLfloat, GLfloat);
		void SetScale(GLfloat, GLfloat, GLfloat);
		int GetObjectTypeID(char *);

};

class WorldEntityList 
{
	public:

	WorldEntity * rootNode;

	WorldEntityList() {
		rootNode = NULL;
	}
	~WorldEntityList() {}

	WorldEntity * Insert(char * name) {
		if(!rootNode) {
			rootNode = new WorldEntity(name);
			return rootNode;
		}
		else {
			WorldEntity * temp = rootNode;
			while(temp->next != NULL) {
				temp = temp->next;
			}
			temp->next = new WorldEntity(name);
			return temp->next;
		}
	}
};


class WorldTree {
	
	private:
		int ent_index;

	public:
		WorldEntity * w_ents[100];
		WorldEntityList * world_ents;

		WorldTree() : ent_index(0) {
			world_ents = new WorldEntityList();
		}
		~WorldTree() {}

		WorldEntity * createNewEntity(char * name) {
			return world_ents->Insert(name);
			//w_ents[ent_index] = new WorldEntity(name);

			//return w_ents[ent_index++];

		}

};

  

It says that there is no default construct for WorldEntityList. This boggles me, the line it complains on has an arrow pointing to it. Does anyone have any ideas, i have been starting at it forever. Edited by - taybrin on October 23, 2001 5:33:54 AM Edited by - taybrin on October 23, 2001 5:34:20 AM

I separated out all of my code into three different header files and I still get the same errors from VC++. Here are the errors,

d:\msdev98\myprojects\scene graph\worldentity.h(18) : error C2143: syntax error : missing ';' before '*'
d:\msdev98\myprojects\scene graph\worldentity.h(18) : error C2501: 'WorldEntityList' : missing storage-class or type specifiers
d:\msdev98\myprojects\scene graph\worldentity.h(18) : error C2501: 'child_entities' : missing storage-class or type specifiers

and here is the new code:

WorldEntity.h

    #ifndef WORLDENTITY#define WORLDENTITY 1#include "WorldEntityList.h"#include "ObjectList.h"class WorldEntity {	public:		/* transformation vectors */		GLfloat transform[3];		GLfloat rotate[3];		int rot_angle;		GLfloat scale[3];		ObjectList * object_list;		WorldEntityList * child_entities;		char * name;		WorldEntity * next;		WorldEntity(char * n) :  name(n) {			transform[0] = 0.0;			transform[1] = 0.0;			transform[2] = 0.0;			rot_angle = 0; // should this be a float			rotate[0] = 0.0;			rotate[1] = 0.0;			rotate[2] = 1.0;			scale[0] = 1.0;			scale[1] = 1.0;			scale[2] = 1.0;			object_list = NULL;			object_list = new ObjectList();			child_entities = new WorldEntityList();		};		~WorldEntity() {};		// depending on the object we will have one or more extra parameters		void SetObject(char *, char *, char *, ...); 		void SetTranslate(GLfloat, GLfloat, GLfloat);		void SetRotate(int, GLfloat, GLfloat, GLfloat);		void SetScale(GLfloat, GLfloat, GLfloat);		int GetObjectTypeID(char *);};#endif  

Here is the WorldEntityList.h file where this class is defined.

  #ifndef WORLDLIST#define WORLDLIST 1#include "WorldTree.h"#include "WorldEntity.h"class WorldEntityList {	public:	WorldEntity * rootNode;	WorldEntityList() {		rootNode = NULL;	};	~WorldEntityList() {};	WorldEntity * Insert(char * name) {		if(!rootNode) {			rootNode = new WorldEntity(name);			return rootNode;		}		else {			WorldEntity * temp = rootNode;			while(temp->next != NULL) {				temp = temp->next;			}			temp->next = new WorldEntity(name);			return temp->next;		}	};};#endif  

Does anyone have any ideas on what may be wrong . . . I have been going hit and miss for awhile now with ideas.

Thanks

Matt

Edited by - taybrin on October 23, 2001 12:16:20 AM

This isn''t your problem, but don''t do this:
... = new WorldEntityList();

It calls the copy constructor AND the operator().
99% of the time the operator() optimizes away to nothing, but if you ever define it for a class it''ll get called and then new xxx() won''t return a xxx*, but whatever the operator() returns.


Look at the line this error is on:
d:\msdev98\myprojects\scene graph\worldentity.h(18) : error C2143: syntax error : missing '';'' before ''*''

Whatever is before the * is likely undefined. You need a forward reference or include it''s header file.

A ; could actually be missing above that line as well. If it the first line in the file, look at the end of the last file #include''d for a missing ;.

Magmai Kai Holmlor
- Not For Rent