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// CraftingRecipes.h

// Interfaces to the cCraftingRecipes class representing the storage of crafting recipes




#pragma once

#include "cItem.h"





class cCraftingGrid  // tolua_export
{  // tolua_export
public:
	cCraftingGrid(const cCraftingGrid & a_Original);
	cCraftingGrid(int a_Width, int a_Height);  // tolua_export
	cCraftingGrid(cItem * a_Items, int a_Width, int a_Height);
	~cCraftingGrid();
	
	// tolua_begin
	int     GetWidth (void) const {return m_Width; }
	int     GetHeight(void) const {return m_Height; }
	cItem & GetItem  (int x, int y) const;
	void    SetItem  (int x, int y, ENUM_ITEM_ID a_ItemType, short a_ItemHealth, int a_ItemCount);
	void    SetItem  (int x, int y, const cItem & a_Item);
	void    Clear    (void);
	
	/// Removes items in a_Grid from m_Items[] (used by cCraftingRecipe::ConsumeIngredients())
	void ConsumeGrid(const cCraftingGrid & a_Grid);

	/// Dumps the entire crafting grid using LOGD()
	void Dump(void);
	
	// tolua_end
	
	cItem * GetItems(void) const {return m_Items; }
	
	/// Copies internal contents into the item array specified. Assumes that the array has the same dimensions as self
	void  CopyToItems(cItem * a_Items) const;
	
protected:

	int     m_Width;
	int     m_Height;
	cItem * m_Items;
} ;  // tolua_export





class cCraftingRecipe  // tolua_export
{  // tolua_export
public:
	cCraftingRecipe(const cCraftingGrid & a_CraftingGrid);
	
	// tolua_begin
	void          Clear               (void);
	int           GetIngredientsWidth (void) const {return m_Ingredients.GetWidth(); }
	int           GetIngredientsHeight(void) const {return m_Ingredients.GetHeight(); }
	cItem &       GetIngredient       (int x, int y) const {return m_Ingredients.GetItem(x, y); }
	const cItem & GetResult           (void) const {return m_Result; }
	void          SetResult           (ENUM_ITEM_ID a_ItemType, short a_ItemHealth, int a_ItemCount);
	void          SetResult           (const cItem & a_Item)
	{
		m_Result = a_Item;
	}
	
	void          SetIngredient       (int x, int y, ENUM_ITEM_ID a_ItemType, short a_ItemHealth, int a_ItemCount)
	{
		m_Ingredients.SetItem(x, y, a_ItemType, a_ItemHealth, a_ItemCount);
	}
	
	void          SetIngredient       (int x, int y, const cItem & a_Item)
	{
		m_Ingredients.SetItem(x, y, a_Item);
	}
	
	/// Consumes ingredients from the crafting grid specified
	void ConsumeIngredients(cCraftingGrid & a_CraftingGrid);

	/// Dumps the entire recipe using LOGD()
	void Dump(void);
	// tolua_end
	
protected:

	cCraftingGrid m_Ingredients;  // Adjusted to correspond to the input crafting grid!
	cItem         m_Result;
} ;  // tolua_export





class cCraftingRecipes
{
public:
	static const int MAX_GRID_WIDTH  = 3;
	static const int MAX_GRID_HEIGHT = 3;
	
	cCraftingRecipes(void);
	~cCraftingRecipes();
	
	/// Returns the recipe for current crafting grid. Doesn't modify the grid. Clears a_Recipe if no recipe found.
	void GetRecipe(const cCraftingGrid & a_CraftingGrid, cCraftingRecipe & a_Recipe);
	
protected:

	struct cRecipeSlot
	{
		cItem m_Item;
		int x, y;  // 1..3, or -1 for "any"
	} ;
	typedef std::vector<cRecipeSlot> cRecipeSlots;
	
	/** A single recipe, stored. Each recipe is normalized right after parsing (NormalizeIngredients())
	A normalized recipe starts at (0,0)
	*/
	struct cRecipe
	{
		cRecipeSlots m_Ingredients;
		cItem        m_Result;
		
		// Size of the regular items in the recipe; "anywhere" items are excluded:
		int m_Width;
		int m_Height;
	} ;
	typedef std::vector<cRecipe *> cRecipes;
	
	cRecipes m_Recipes;
	
	void LoadRecipes(void);
	void ClearRecipes(void);
	
	/// Parses the recipe line and adds it into m_Recipes. a_LineNum is used for diagnostic warnings only
	void AddRecipeLine(int a_LineNum, const AString & a_RecipeLine);
	
	/// Parses an item string in the format "<ItemType>[^<Damage>]", returns true if successful.
	bool ParseItem(const AString & a_String, cItem & a_Item);
	
	/// Parses one ingredient and adds it to the specified recipe. Returns true if successful.
	bool ParseIngredient(const AString & a_String, cRecipe * a_Recipe);
	
	/// Moves the recipe to top-left corner, sets its MinWidth / MinHeight
	void NormalizeIngredients(cRecipe * a_Recipe);
	
	/// Finds a recipe matching the crafting grid. Returns a newly allocated recipe (with all its coords set) or NULL if not found. Caller must delete return value!
	cRecipe * FindRecipe(const cItem * a_CraftingGrid, int a_GridWidth, int a_GridHeight);
	
	/// Same as FindRecipe, but the grid is guaranteed to be of minimal dimensions needed
	cRecipe * FindRecipeCropped(const cItem * a_CraftingGrid, int a_GridWidth, int a_GridHeight, int a_GridStride);
	
	/// Checks if the grid matches the specified recipe, offset by the specified offsets. Returns a matched cRecipe * if so, or NULL if not matching. Caller must delete the return value!
	cRecipe * MatchRecipe(const cItem * a_CraftingGrid, int a_GridWidth, int a_GridHeight, int a_GridStride, const cRecipe * a_Recipe, int a_OffsetX, int a_OffsetY);
} ;