I have a problem with a file of my project, i guess caused by some include issues. The code itself worked fine but since I changed some lines in some other files I get a 'expected class name before '{' token' error. I've already tried to use forward declarations but with them the error changes to 'invalid use of incomplete type 'class Entity'' (lines of build report at the end of the post).
EntityPlayer.h
#ifndef _SHARED_GAME_ENTITY_ENTITYPLAYER_H_
#define _SHARED_GAME_ENTITY_ENTITYPLAYER_H_
//////////////////////////////////////////////////
//////////////////// INCLUDES ////////////////////
//////////////////////////////////////////////////
#include<array>
#include<iostream>
#include<windows.h>
#include<SFML/System.hpp>
#include<Shared/Game/Entity/Entity.h>
#include<Shared/Game/ItemStack.h>
#include<Shared/Game/Items.h>
#include<Shared/System/Types.h>
//////////////////////////////////////////////////
////////// STRUKTUREN; KLASSEN; OBJEKTE //////////
//////////////////////////////////////////////////
//class Entity; //forward declaration of 'class Entity' -> invalid use of incomplete type 'class Entity' line 27
class ItemStack;
class Items;
class EntityPlayer : public Entity{ //line 27
public:
struct PlayerStats{
int health;
};
EntityPlayer(const std::string ID, const GameMode mode);
virtual ~EntityPlayer();
virtual void update();
virtual void setGameMode(const GameMode mode);
virtual bool isInventoryOpen();
virtual bool isInInventory(ItemStack* item);
virtual bool removeFromInventory(ItemStack *item);
virtual uint addToInventory(ItemStack* item);
virtual PlayerStats getPlayerStats();
virtual AABB getAABB();
virtual std::array<ItemStack*, 10> getHotbarItems();
virtual std::array<ItemStack*, 40> getInventory();
protected:
virtual bool isInventorySlotFree();
virtual bool isHotbarSlotFree();
virtual bool addToHotbarSlot(ItemStack* itemstack);
bool m_inventoryOpen;
bool m_ltp;
GameMode m_mode;
PlayerStats m_stats;
std::array<ItemStack*, 10> m_itemsHotbar;
std::array<ItemStack*, 40> m_inventory;
};
//////////////////////////////////////////////////
/////////////////// PROTOTYPEN ///////////////////
//////////////////////////////////////////////////
#endif // _SHARED_GAME_ENTITY_ENTITYPLAYER_H_
Entity.h
#ifndef _SHARED_GAME_ENTITY_ENTITY_H_
#define _SHARED_GAME_ENTITY_ENTITY_H_
//////////////////////////////////////////////////
//////////////////// INCLUDES ////////////////////
//////////////////////////////////////////////////
#include<map>
#include<iostream>
#include<windows.h>
#include<Shared/Game/World.h>
#include<Shared/System/Defines.h>
#include<Shared/System/Log.h>
#include<Shared/System/Types.h>
//////////////////////////////////////////////////
////////// STRUKTUREN; KLASSEN; OBJEKTE //////////
//////////////////////////////////////////////////
class World;
class Entity{
friend class GameRegistry;
#ifdef CLIENT
friend class GameRenderer;
#endif // CLIENT
public:
Entity(const std::string ID, const std::string texture);
virtual ~Entity();
virtual void update();
virtual bool linkWorld(World* world);
virtual bool isWorldLinked();
virtual bool setPosition(const Vec3d position);
virtual bool move(const Vec2zd value);
virtual bool move(const double x, const double z);
virtual float getRotation();
virtual Vec3d getPosition();
virtual std::string getID();
virtual std::string getTextureName();
virtual std::string getTextureLocation();
virtual AABB getAABB();
protected:
virtual int getNumericID();
int m_numericID;
float m_rotation;
World* m_world;
Vec3d m_position;
std::string m_id;
std::string m_texture;
public:
static bool isEntityRegistered(const std::string name);
static Entity getEntityCopy(const std::string name);
protected:
static std::map<std::string, Entity*> m_entitys;
};
//////////////////////////////////////////////////
/////////////////// PROTOTYPEN ///////////////////
//////////////////////////////////////////////////
#endif // _SHARED_GAME_ENTITY_ENTITY_H_
Error 'expected class-name before '{' token':
In file included from src/Shared/Game/CraftingManager.h:13:0,
from src/Shared/Game/GameRegistry.h:16,
from src/Shared/Game/Blocks.h:18,
from src/Shared/Game/World.h:12,
from src/Shared/Game/Entity/Entity.h:12,
from E:\MasterS\Projekte\C++\Spiele\Project 008\src\Shared\Game\Entity\Entity.cpp:1:
src/Shared/Game/Entity/EntityPlayer.h:28:35: error: expected class-name before '{' token
class EntityPlayer : public Entity{
^
Error 'invalid use of incomplete type':
In file included from src/Shared/Game/CraftingManager.h:13:0,
from src/Shared/Game/GameRegistry.h:16,
from src/Shared/Game/Blocks.h:18,
from src/Shared/Game/World.h:12,
from src/Shared/Game/Entity/Entity.h:12,
from E:\MasterS\Projekte\C++\Spiele\Project 008\src\Shared\Game\Entity\Entity.cpp:1:
src/Shared/Game/Entity/EntityPlayer.h:28:29: error: invalid use of incomplete type 'class Entity'
class EntityPlayer : public Entity{
^
src/Shared/Game/Entity/EntityPlayer.h:24:7: error: forward declaration of 'class Entity'
class Entity; //forward declaration of 'class Entity' -> invalid use of incomplete type 'class Entity' line 27
^
I don't know which of the included files you'll need to help me but no one of the files listed in the error list contains the include of the file Entity.h.
Thank you very much in advance, hope you can help me :)
Just to mark this as answered. Paraphrasing the discussion: Check your include chain to see if you are including EntityPlayer.h from Entity.h.