CraftingRecipes.cpp

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// CraftingRecipes.cpp

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

#include "Globals.h"
#include "CraftingRecipes.h"
#include "Root.h"
#include "Bindings/PluginManager.h"





// cCraftingGrid:

cCraftingGrid::cCraftingGrid(int a_Width, int a_Height) :
    m_Width(a_Width),
    m_Height(a_Height),
    m_Items(new cItem[a_Width * a_Height])
{
}





cCraftingGrid::cCraftingGrid(const cItem * a_Items, int a_Width, int a_Height) :
    m_Width(a_Width),
    m_Height(a_Height),
    m_Items(new cItem[a_Width * a_Height])
{
    for (int i = a_Width * a_Height - 1; i >= 0; i--)
    {
        m_Items[i] = a_Items[i];
    }
}





cCraftingGrid::cCraftingGrid(const cCraftingGrid & a_Original) :
    m_Width(a_Original.m_Width),
    m_Height(a_Original.m_Height),
    m_Items(new cItem[a_Original.m_Width * a_Original.m_Height])
{
    for (int i = m_Width * m_Height - 1; i >= 0; i--)
    {
        m_Items[i] = a_Original.m_Items[i];
    }
}





cCraftingGrid::~cCraftingGrid()
{
    delete[] m_Items;
    m_Items = nullptr;
}





cItem & cCraftingGrid::GetItem(int x, int y) const
{
    // Accessible through scripting, must verify parameters:
    if ((x < 0) || (x >= m_Width) || (y < 0) || (y >= m_Height))
    {
        LOGERROR("Attempted to get an invalid item from a crafting grid: (%d, %d), grid dimensions: (%d, %d).",
            x, y, m_Width, m_Height
        );
        return m_Items[0];
    }
    return m_Items[x + m_Width * y];
}





void cCraftingGrid::SetItem(int x, int y, ENUM_ITEM_ID a_ItemType, char a_ItemCount, short a_ItemHealth)
{
    // Accessible through scripting, must verify parameters:
    if ((x < 0) || (x >= m_Width) || (y < 0) || (y >= m_Height))
    {
        LOGERROR("Attempted to set an invalid item in a crafting grid: (%d, %d), grid dimensions: (%d, %d).",
            x, y, m_Width, m_Height
        );
        return;
    }

    m_Items[x + m_Width * y] = cItem(a_ItemType, a_ItemCount, a_ItemHealth);
}





void cCraftingGrid::SetItem(int x, int y, const cItem & a_Item)
{
    // Accessible through scripting, must verify parameters:
    if ((x < 0) || (x >= m_Width) || (y < 0) || (y >= m_Height))
    {
        LOGERROR("Attempted to set an invalid item in a crafting grid: (%d, %d), grid dimensions: (%d, %d).",
            x, y, m_Width, m_Height
        );
        return;
    }

    m_Items[x + m_Width * y] = a_Item;
}





void cCraftingGrid::Clear(void)
{
    for (int y = 0; y < m_Height; y++) for (int x = 0; x < m_Width; x++)
    {
        m_Items[x + m_Width * y].Empty();
    }
}





void cCraftingGrid::ConsumeGrid(const cCraftingGrid & a_Grid)
{
    if ((a_Grid.m_Width != m_Width) || (a_Grid.m_Height != m_Height))
    {
        LOGWARNING("Consuming a grid of different dimensions: (%d, %d) vs (%d, %d)",
            a_Grid.m_Width, a_Grid.m_Height, m_Width, m_Height
        );
    }
    int MinX = std::min(a_Grid.m_Width,  m_Width);
    int MinY = std::min(a_Grid.m_Height, m_Height);
    for (int y = 0; y <  MinY; y++) for (int x = 0; x < MinX; x++)
    {
        int ThatIdx = x + a_Grid.m_Width * y;
        if (a_Grid.m_Items[ThatIdx].IsEmpty())
        {
            continue;
        }
        int ThisIdx = x + m_Width * y;
        if (a_Grid.m_Items[ThatIdx].m_ItemType != m_Items[ThisIdx].m_ItemType)
        {
            LOGWARNING("Consuming incompatible grids: item at (%d, %d) is %d in grid and %d in ingredients. Item not consumed.",
                x, y, m_Items[ThisIdx].m_ItemType, a_Grid.m_Items[ThatIdx].m_ItemType
            );
            continue;
        }
        char NumWantedItems = a_Grid.m_Items[ThatIdx].m_ItemCount;
        if (NumWantedItems > m_Items[ThisIdx].m_ItemCount)
        {
            LOGWARNING("Consuming more items than there actually are in slot (%d, %d), item %d (want %d, have %d). Item zeroed out.",
                x, y, m_Items[ThisIdx].m_ItemType,
                NumWantedItems, m_Items[ThisIdx].m_ItemCount
            );
            NumWantedItems = m_Items[ThisIdx].m_ItemCount;
        }
        m_Items[ThisIdx].m_ItemCount -= NumWantedItems;
        if (m_Items[ThisIdx].m_ItemCount == 0)
        {
            if ((m_Items[ThisIdx].m_ItemType == E_ITEM_MILK) || (m_Items[ThisIdx].m_ItemType == E_ITEM_WATER_BUCKET) || (m_Items[ThisIdx].m_ItemType == E_ITEM_LAVA_BUCKET))
            {
                m_Items[ThisIdx] = cItem(E_ITEM_BUCKET, m_Items[ThisIdx].m_ItemCount);
            }
            else
            {
                m_Items[ThisIdx].Clear();
            }
        }
    }  // for x, for y
}





void cCraftingGrid::CopyToItems(cItem * a_Items) const
{
    for (int i = m_Height * m_Width - 1; i >= 0; i--)
    {
        a_Items[i] = m_Items[i];
    }  // for x, for y
}





void cCraftingGrid::Dump(void)
{
    for (int y = 0; y < m_Height; y++) for (int x = 0; x < m_Width; x++)
    {
        #ifdef _DEBUG
        int idx = x + m_Width * y;
        #endif
        LOGD("Slot (%d, %d): Type %d, health %d, count %d",
            x, y, m_Items[idx].m_ItemType, m_Items[idx].m_ItemDamage, m_Items[idx].m_ItemCount
        );
    }
}





// cCraftingRecipe:

cCraftingRecipe::cCraftingRecipe(const cCraftingGrid & a_CraftingGrid) :
    m_Ingredients(a_CraftingGrid)
{
}





void cCraftingRecipe::Clear(void)
{
    m_Ingredients.Clear();
    m_Result.Clear();
}





void cCraftingRecipe::SetResult(ENUM_ITEM_ID a_ItemType, char a_ItemCount, short a_ItemHealth)
{
    m_Result = cItem(a_ItemType, a_ItemCount, a_ItemHealth);
}





void cCraftingRecipe::ConsumeIngredients(cCraftingGrid & a_CraftingGrid)
{
    a_CraftingGrid.ConsumeGrid(m_Ingredients);
}





void cCraftingRecipe::Dump(void)
{
    LOGD("Recipe ingredients:");
    m_Ingredients.Dump();
    LOGD("Result: Type %d, health %d, count %d",
        m_Result.m_ItemType, m_Result.m_ItemDamage, m_Result.m_ItemCount
    );
}





// cCraftingRecipes:

cCraftingRecipes::cCraftingRecipes(void)
{
    LoadRecipes();
}





cCraftingRecipes::~cCraftingRecipes()
{
    ClearRecipes();
}





void cCraftingRecipes::GetRecipe(cPlayer & a_Player, cCraftingGrid & a_CraftingGrid, cCraftingRecipe & a_Recipe)
{
    // Allow plugins to intercept recipes using a pre-craft hook:
    if (cRoot::Get()->GetPluginManager()->CallHookPreCrafting(a_Player, a_CraftingGrid, a_Recipe))
    {
        return;
    }

    // Built-in recipes:
    std::unique_ptr<cRecipe> Recipe(FindRecipe(a_CraftingGrid.GetItems(), a_CraftingGrid.GetWidth(), a_CraftingGrid.GetHeight()));
    a_Recipe.Clear();
    if (Recipe.get() == nullptr)
    {
        // Allow plugins to intercept a no-recipe-found situation:
        cRoot::Get()->GetPluginManager()->CallHookCraftingNoRecipe(a_Player, a_CraftingGrid, a_Recipe);
        return;
    }
    for (cRecipeSlots::const_iterator itr = Recipe->m_Ingredients.begin(); itr != Recipe->m_Ingredients.end(); ++itr)
    {
        a_Recipe.SetIngredient(itr->x, itr->y, itr->m_Item);
    }  // for itr
    a_Recipe.SetResult(Recipe->m_Result);

    // Allow plugins to intercept recipes after they are processed:
    cRoot::Get()->GetPluginManager()->CallHookPostCrafting(a_Player, a_CraftingGrid, a_Recipe);
}





void cCraftingRecipes::LoadRecipes(void)
{
    LOGD("Loading crafting recipes from crafting.txt...");
    ClearRecipes();

    // Load the crafting.txt file:
    cFile f;
    if (!f.Open("crafting.txt", cFile::fmRead))
    {
        LOGWARNING("Cannot open file \"crafting.txt\", no crafting recipes will be available!");
        return;
    }
    AString Everything;
    if (!f.ReadRestOfFile(Everything))
    {
        LOGWARNING("Cannot read file \"crafting.txt\", no crafting recipes will be available!");
        return;
    }
    f.Close();

    // Split it into lines, then process each line as a single recipe:
    AStringVector Split = StringSplit(Everything, "\n");
    int LineNum = 1;
    for (AStringVector::const_iterator itr = Split.begin(); itr != Split.end(); ++itr, ++LineNum)
    {
        // Remove anything after a '#' sign and trim away the whitespace:
        AString Recipe = TrimString(itr->substr(0, itr->find('#')));
        if (Recipe.empty())
        {
            // Empty recipe
            continue;
        }
        AddRecipeLine(LineNum, Recipe);
    }  // for itr - Split[]
    LOG("Loaded %zu crafting recipes", m_Recipes.size());
}





void cCraftingRecipes::ClearRecipes(void)
{
    for (cRecipes::iterator itr = m_Recipes.begin(); itr != m_Recipes.end(); ++itr)
    {
        delete *itr;
    }
    m_Recipes.clear();
}





void cCraftingRecipes::AddRecipeLine(int a_LineNum, const AString & a_RecipeLine)
{
    // Remove any spaces within the line:
    AString RecipeLine(a_RecipeLine);
    RecipeLine.erase(std::remove_if(RecipeLine.begin(), RecipeLine.end(), isspace), RecipeLine.end());

    AStringVector Sides = StringSplit(RecipeLine, "=");
    if (Sides.size() != 2)
    {
        LOGWARNING("crafting.txt: line %d: A single '=' was expected, got %zu", a_LineNum, Sides.size() - 1);
        LOGINFO("Offending line: \"%s\"", a_RecipeLine.c_str());
        return;
    }

    std::unique_ptr<cCraftingRecipes::cRecipe> Recipe = cpp14::make_unique<cCraftingRecipes::cRecipe>();

    // Parse the result:
    AStringVector ResultSplit = StringSplit(Sides[0], ",");
    if (ResultSplit.empty())
    {
        LOGWARNING("crafting.txt: line %d: Result is empty, ignoring the recipe.", a_LineNum);
        LOGINFO("Offending line: \"%s\"", a_RecipeLine.c_str());
        return;
    }
    if (!ParseItem(ResultSplit[0], Recipe->m_Result))
    {
        LOGWARNING("crafting.txt: line %d: Cannot parse result item, ignoring the recipe.", a_LineNum);
        LOGINFO("Offending line: \"%s\"", a_RecipeLine.c_str());
        return;
    }
    if (ResultSplit.size() > 1)
    {
        if (!StringToInteger<char>(ResultSplit[1].c_str(), Recipe->m_Result.m_ItemCount))
        {
            LOGWARNING("crafting.txt: line %d: Cannot parse result count, ignoring the recipe.", a_LineNum);
            LOGINFO("Offending line: \"%s\"", a_RecipeLine.c_str());
            return;
        }
    }
    else
    {
        Recipe->m_Result.m_ItemCount = 1;
    }

    // Parse each ingredient:
    AStringVector Ingredients = StringSplit(Sides[1], "|");
    int Num = 1;
    for (AStringVector::const_iterator itr = Ingredients.begin(); itr != Ingredients.end(); ++itr, ++Num)
    {
        if (!ParseIngredient(*itr, Recipe.get()))
        {
            LOGWARNING("crafting.txt: line %d: Cannot parse ingredient #%d, ignoring the recipe.", a_LineNum, Num);
            LOGINFO("Offending line: \"%s\"", a_RecipeLine.c_str());
            return;
        }
    }  // for itr - Ingredients[]

    NormalizeIngredients(Recipe.get());

    m_Recipes.push_back(Recipe.release());
}





bool cCraftingRecipes::ParseItem(const AString & a_String, cItem & a_Item)
{
    // The caller provides error logging

    AStringVector Split = StringSplit(a_String, "^");
    if (Split.empty())
    {
        return false;
    }

    if (!StringToItem(Split[0], a_Item))
    {
        return false;
    }

    if (Split.size() > 1)
    {
        AString Damage = TrimString(Split[1]);
        if (!StringToInteger<short>(Damage.c_str(), a_Item.m_ItemDamage))
        {
            // Parsing the number failed
            return false;
        }
    }

    // Success
    return true;
}





bool cCraftingRecipes::ParseIngredient(const AString & a_String, cRecipe * a_Recipe)
{
    // a_String is in this format: "ItemType^damage, X:Y, X:Y, X:Y..."
    AStringVector Split = StringSplit(a_String, ",");
    if (Split.size() < 2)
    {
        // Not enough split items
        return false;
    }
    cItem Item;
    if (!ParseItem(Split[0], Item))
    {
        return false;
    }
    Item.m_ItemCount = 1;

    cCraftingRecipes::cRecipeSlots TempSlots;
    for (AStringVector::const_iterator itr = Split.begin() + 1; itr != Split.end(); ++itr)
    {
        // Parse the coords in the split item:
        AStringVector Coords = StringSplit(*itr, ":");
        if ((Coords.size() == 1) && (TrimString(Coords[0]) == "*"))
        {
            cCraftingRecipes::cRecipeSlot Slot;
            Slot.m_Item = Item;
            Slot.x = -1;
            Slot.y = -1;
            TempSlots.push_back(Slot);
            continue;
        }
        if (Coords.size() != 2)
        {
            return false;
        }
        Coords[0] = TrimString(Coords[0]);
        Coords[1] = TrimString(Coords[1]);
        if (Coords[0].empty() || Coords[1].empty())
        {
            return false;
        }
        cCraftingRecipes::cRecipeSlot Slot;
        Slot.m_Item = Item;
        switch (Coords[0][0])
        {
            case '1': Slot.x = 0;  break;
            case '2': Slot.x = 1;  break;
            case '3': Slot.x = 2;  break;
            case '*': Slot.x = -1; break;
            default:
            {
                return false;
            }
        }
        switch (Coords[1][0])
        {
            case '1': Slot.y = 0;  break;
            case '2': Slot.y = 1;  break;
            case '3': Slot.y = 2;  break;
            case '*': Slot.y = -1; break;
            default:
            {
                return false;
            }
        }
        TempSlots.push_back(Slot);
    }  // for itr - Split[]

    // Append the ingredients:
    a_Recipe->m_Ingredients.insert(a_Recipe->m_Ingredients.end(), TempSlots.begin(), TempSlots.end());
    return true;
}





void cCraftingRecipes::NormalizeIngredients(cCraftingRecipes::cRecipe * a_Recipe)
{
    // Calculate the minimum coords for ingredients, excluding the "anywhere" items:
    int MinX = MAX_GRID_WIDTH, MaxX = 0;
    int MinY = MAX_GRID_HEIGHT, MaxY = 0;
    for (cRecipeSlots::const_iterator itr = a_Recipe->m_Ingredients.begin(); itr != a_Recipe->m_Ingredients.end(); ++itr)
    {
        if (itr->x >= 0)
        {
            MinX = std::min(itr->x, MinX);
            MaxX = std::max(itr->x, MaxX);
        }
        if (itr->y >= 0)
        {
            MinY = std::min(itr->y, MinY);
            MaxY = std::max(itr->y, MaxY);
        }
    }  // for itr - a_Recipe->m_Ingredients[]

    // Move ingredients so that the minimum coords are 0:0
    for (cRecipeSlots::iterator itr = a_Recipe->m_Ingredients.begin(); itr != a_Recipe->m_Ingredients.end(); ++itr)
    {
        if (itr->x >= 0)
        {
            itr->x -= MinX;
        }
        if (itr->y >= 0)
        {
            itr->y -= MinY;
        }
    }  // for itr - a_Recipe->m_Ingredients[]
    a_Recipe->m_Width  = std::max(MaxX - MinX + 1, 1);
    a_Recipe->m_Height = std::max(MaxY - MinY + 1, 1);

    // TODO: Compress two same ingredients with the same coords into a single ingredient with increased item count
}





cCraftingRecipes::cRecipe * cCraftingRecipes::FindRecipe(const cItem * a_CraftingGrid, int a_GridWidth, int a_GridHeight)
{
    ASSERT(a_GridWidth <= MAX_GRID_WIDTH);
    ASSERT(a_GridHeight <= MAX_GRID_HEIGHT);

    // Get the real bounds of the crafting grid:
    int GridLeft = MAX_GRID_WIDTH, GridTop = MAX_GRID_HEIGHT;
    int GridRight = 0,  GridBottom = 0;
    for (int y = 0; y < a_GridHeight; y++) for (int x = 0; x < a_GridWidth; x++)
    {
        if (!a_CraftingGrid[x + y * a_GridWidth].IsEmpty())
        {
            GridRight  = std::max(x, GridRight);
            GridBottom = std::max(y, GridBottom);
            GridLeft   = std::min(x, GridLeft);
            GridTop    = std::min(y, GridTop);
        }
    }
    int GridWidth = GridRight - GridLeft + 1;
    int GridHeight = GridBottom - GridTop + 1;

    // Search in the possibly minimized grid, but keep the stride:
    const cItem * Grid = a_CraftingGrid + GridLeft + (a_GridWidth * GridTop);
    cRecipe * Recipe = FindRecipeCropped(Grid, GridWidth, GridHeight, a_GridWidth);
    if (Recipe == nullptr)
    {
        return nullptr;
    }

    // A recipe has been found, move it to correspond to the original crafting grid:
    for (cRecipeSlots::iterator itrS = Recipe->m_Ingredients.begin(); itrS != Recipe->m_Ingredients.end(); ++itrS)
    {
        itrS->x += GridLeft;
        itrS->y += GridTop;
    }  // for itrS - Recipe->m_Ingredients[]

    return Recipe;
}





cCraftingRecipes::cRecipe * cCraftingRecipes::FindRecipeCropped(const cItem * a_CraftingGrid, int a_GridWidth, int a_GridHeight, int a_GridStride)
{
    for (cRecipes::const_iterator itr = m_Recipes.begin(); itr != m_Recipes.end(); ++itr)
    {
        // Both the crafting grid and the recipes are normalized. The only variable possible is the "anywhere" items.
        // This still means that the "anywhere" item may be the one that is offsetting the grid contents to the right or downwards, so we need to check all possible positions.
        // E. g. recipe "A, * | B, 1:1 | ..." still needs to check grid for B at 2:2 (in case A was in grid's 1:1)
        // Calculate the maximum offsets for this recipe relative to the grid size, and iterate through all combinations of offsets.
        // Also, this calculation automatically filters out recipes that are too large for the current grid - the loop won't be entered at all.

        int MaxOfsX = a_GridWidth  - (*itr)->m_Width;
        int MaxOfsY = a_GridHeight - (*itr)->m_Height;
        for (int x = 0; x <= MaxOfsX; x++) for (int y = 0; y <= MaxOfsY; y++)
        {
            cRecipe * Recipe = MatchRecipe(a_CraftingGrid, a_GridWidth, a_GridHeight, a_GridStride, *itr, x, y);
            if (Recipe != nullptr)
            {
                return Recipe;
            }
        }  // for y, for x
    }  // for itr - m_Recipes[]

    // No matching recipe found
    return nullptr;
}





cCraftingRecipes::cRecipe * cCraftingRecipes::MatchRecipe(const cItem * a_CraftingGrid, int a_GridWidth, int a_GridHeight, int a_GridStride, const cRecipe * a_Recipe, int a_OffsetX, int a_OffsetY)
{
    // Check the regular items first:
    bool HasMatched[MAX_GRID_WIDTH][MAX_GRID_HEIGHT];
    memset(HasMatched, 0, sizeof(HasMatched));
    for (cRecipeSlots::const_iterator itrS = a_Recipe->m_Ingredients.begin(); itrS != a_Recipe->m_Ingredients.end(); ++itrS)
    {
        if ((itrS->x < 0) || (itrS->y < 0))
        {
            // "Anywhere" item, process later
            continue;
        }
        ASSERT(itrS->x + a_OffsetX < a_GridWidth);
        ASSERT(itrS->y + a_OffsetY < a_GridHeight);
        int GridID = (itrS->x + a_OffsetX) + a_GridStride * (itrS->y + a_OffsetY);

        const cItem & Item = itrS->m_Item;
        if (
            (itrS->x >= a_GridWidth) ||
            (itrS->y >= a_GridHeight) ||
            (Item.m_ItemType != a_CraftingGrid[GridID].m_ItemType) ||   // same item type?
            (Item.m_ItemCount > a_CraftingGrid[GridID].m_ItemCount) ||  // not enough items
            (
                (Item.m_ItemDamage >= 0) &&  // should compare damage values?
                (Item.m_ItemDamage != a_CraftingGrid[GridID].m_ItemDamage)
            )
        )
        {
            // Doesn't match
            return nullptr;
        }
        HasMatched[itrS->x + a_OffsetX][itrS->y + a_OffsetY] = true;
    }  // for itrS - Recipe->m_Ingredients[]

    // Process the "Anywhere" items now, and only in the cells that haven't matched yet
    // The "anywhere" items are processed on a first-come-first-served basis.
    // Do not use a recipe with one horizontal and one vertical "anywhere" ("*:1, 1:*") as it may not match properly!
    cRecipeSlots MatchedSlots;  // Stores the slots of "anywhere" items that have matched, with the match coords
    for (cRecipeSlots::const_iterator itrS = a_Recipe->m_Ingredients.begin(); itrS != a_Recipe->m_Ingredients.end(); ++itrS)
    {
        if ((itrS->x >= 0) && (itrS->y >= 0))
        {
            // Regular item, already processed
            continue;
        }
        int StartX = 0, EndX = a_GridWidth  - 1;
        int StartY = 0, EndY = a_GridHeight - 1;
        if (itrS->x >= 0)
        {
            StartX = itrS->x;
            EndX = itrS->x;
        }
        else if (itrS->y >= 0)
        {
            StartY = itrS->y;
            EndY = itrS->y;
        }
        bool Found = false;
        for (int x = StartX; x <= EndX; x++)
        {
            for (int y = StartY; y <= EndY; y++)
            {
                if (HasMatched[x][y])
                {
                    // Already matched some other item
                    continue;
                }
                int GridIdx = x + a_GridStride * y;
                if (
                    (a_CraftingGrid[GridIdx].m_ItemType == itrS->m_Item.m_ItemType) &&
                    (
                        (itrS->m_Item.m_ItemDamage < 0) ||  // doesn't want damage comparison
                        (itrS->m_Item.m_ItemDamage == a_CraftingGrid[GridIdx].m_ItemDamage)  // the damage matches
                    )
                )
                {
                    HasMatched[x][y] = true;
                    Found = true;
                    MatchedSlots.push_back(*itrS);
                    MatchedSlots.back().x = x;
                    MatchedSlots.back().y = y;
                    break;
                }
            }  // for y
            if (Found)
            {
                break;
            }
        }  // for x
        if (!Found)
        {
            return nullptr;
        }
    }  // for itrS - a_Recipe->m_Ingredients[]

    // Check if the whole grid has matched:
    for (int x = 0; x < a_GridWidth; x++) for (int y = 0; y < a_GridHeight; y++)
    {
        if (!HasMatched[x][y] && !a_CraftingGrid[x + a_GridStride * y].IsEmpty())
        {
            // There's an unmatched item in the grid
            return nullptr;
        }
    }  // for y, for x

    // The recipe has matched. Create a copy of the recipe and set its coords to match the crafting grid:
    std::unique_ptr<cRecipe> Recipe = cpp14::make_unique<cRecipe>();
    Recipe->m_Result = a_Recipe->m_Result;
    Recipe->m_Width  = a_Recipe->m_Width;
    Recipe->m_Height = a_Recipe->m_Height;
    for (cRecipeSlots::const_iterator itrS = a_Recipe->m_Ingredients.begin(); itrS != a_Recipe->m_Ingredients.end(); ++itrS)
    {
        if ((itrS->x < 0) || (itrS->y < 0))
        {
            // "Anywhere" item, process later
            continue;
        }
        Recipe->m_Ingredients.push_back(*itrS);
        Recipe->m_Ingredients.back().x += a_OffsetX;
        Recipe->m_Ingredients.back().y += a_OffsetY;
    }
    Recipe->m_Ingredients.insert(Recipe->m_Ingredients.end(), MatchedSlots.begin(), MatchedSlots.end());

    // Handle the fireworks-related effects:
    // We use Recipe instead of a_Recipe because we want the wildcard ingredients' slot numbers as well, which was just added previously
    HandleFireworks(a_CraftingGrid, Recipe.get(), a_GridStride, a_OffsetX, a_OffsetY);

    // Handle Dyed Leather
    HandleDyedLeather(a_CraftingGrid, Recipe.get(), a_GridStride, a_GridWidth, a_GridHeight);

    return Recipe.release();
}





void cCraftingRecipes::HandleFireworks(const cItem * a_CraftingGrid, cCraftingRecipes::cRecipe * a_Recipe, int a_GridStride, int a_OffsetX, int a_OffsetY)
{
    // TODO: add support for more than one dye in the recipe
    // A manual and temporary solution (listing everything) is in crafting.txt for fade colours, but a programmatic solutions needs to be done for everything else

    if (a_Recipe->m_Result.m_ItemType == E_ITEM_FIREWORK_ROCKET)
    {
        for (cRecipeSlots::const_iterator itr = a_Recipe->m_Ingredients.begin(); itr != a_Recipe->m_Ingredients.end(); ++itr)
        {
            switch (itr->m_Item.m_ItemType)
            {
                case E_ITEM_FIREWORK_STAR:
                {
                    // Result was a rocket, found a star - copy star data to rocket data
                    int GridID = (itr->x + a_OffsetX) + a_GridStride * (itr->y + a_OffsetY);
                    a_Recipe->m_Result.m_FireworkItem.CopyFrom(a_CraftingGrid[GridID].m_FireworkItem);
                    break;
                }
                case E_ITEM_GUNPOWDER:
                {
                    // Gunpowder - increase flight time
                    a_Recipe->m_Result.m_FireworkItem.m_FlightTimeInTicks += 20;
                    break;
                }
                case E_ITEM_PAPER: break;
                default: LOG("Unexpected item in firework rocket recipe, was the crafting file's fireworks section changed?"); break;
            }
        }
    }
    else if (a_Recipe->m_Result.m_ItemType == E_ITEM_FIREWORK_STAR)
    {
        std::vector<int> DyeColours;
        bool FoundStar = false;

        for (cRecipeSlots::const_iterator itr = a_Recipe->m_Ingredients.begin(); itr != a_Recipe->m_Ingredients.end(); ++itr)
        {
            switch (itr->m_Item.m_ItemType)
            {
                case E_ITEM_FIREWORK_STAR:
                {
                    // Result was star, found another star - probably adding fade colours, but copy data over anyhow
                    FoundStar = true;
                    int GridID = (itr->x + a_OffsetX) + a_GridStride * (itr->y + a_OffsetY);
                    a_Recipe->m_Result.m_FireworkItem.CopyFrom(a_CraftingGrid[GridID].m_FireworkItem);
                    break;
                }
                case E_ITEM_DYE:
                {
                    int GridID = (itr->x + a_OffsetX) + a_GridStride * (itr->y + a_OffsetY);
                    DyeColours.push_back(cFireworkItem::GetVanillaColourCodeFromDye(static_cast<NIBBLETYPE>(a_CraftingGrid[GridID].m_ItemDamage & 0x0f)));
                    break;
                }
                case E_ITEM_GUNPOWDER: break;
                case E_ITEM_DIAMOND: a_Recipe->m_Result.m_FireworkItem.m_HasTrail = true; break;
                case E_ITEM_GLOWSTONE_DUST: a_Recipe->m_Result.m_FireworkItem.m_HasFlicker = true; break;

                case E_ITEM_FIRE_CHARGE: a_Recipe->m_Result.m_FireworkItem.m_Type = 1; break;
                case E_ITEM_GOLD_NUGGET: a_Recipe->m_Result.m_FireworkItem.m_Type = 2; break;
                case E_ITEM_FEATHER: a_Recipe->m_Result.m_FireworkItem.m_Type = 4; break;
                case E_ITEM_HEAD: a_Recipe->m_Result.m_FireworkItem.m_Type = 3; break;
                default: LOG("Unexpected item in firework star recipe, was the crafting file's fireworks section changed?"); break;  // ermahgerd BARD ardmins
            }
        }

        if (FoundStar && (!DyeColours.empty()))
        {
            // Found a star and a dye? Fade colours.
            a_Recipe->m_Result.m_FireworkItem.m_FadeColours = DyeColours;
        }
        else if (!DyeColours.empty())
        {
            // Only dye? Normal colours.
            a_Recipe->m_Result.m_FireworkItem.m_Colours = DyeColours;
        }
    }
}





void cCraftingRecipes::HandleDyedLeather(const cItem * a_CraftingGrid, cCraftingRecipes::cRecipe * a_Recipe, int a_GridStride, int a_GridWidth, int a_GridHeight)
{
    short result_type = a_Recipe->m_Result.m_ItemType;
    if ((result_type == E_ITEM_LEATHER_CAP) || (result_type == E_ITEM_LEATHER_TUNIC) || (result_type == E_ITEM_LEATHER_PANTS) || (result_type == E_ITEM_LEATHER_BOOTS))
    {
        bool found = false;
        cItem temp;

        float red = 0;
        float green = 0;
        float blue = 0;
        float dye_count = 0;

        for (int x = 0; x < a_GridWidth; ++x)
        {
            for (int y = 0; y < a_GridHeight; ++y)
            {
                int GridIdx = x + a_GridStride * y;
                if ((a_CraftingGrid[GridIdx].m_ItemType == result_type) && (found == false))
                {
                    found = true;
                    temp = a_CraftingGrid[GridIdx].CopyOne();
                    // The original color of the item affects the result
                    if (temp.m_ItemColor.IsValid())
                    {
                        red += temp.m_ItemColor.GetRed();
                        green += temp.m_ItemColor.GetGreen();
                        blue += temp.m_ItemColor.GetBlue();
                        ++dye_count;
                    }
                }
                else if (a_CraftingGrid[GridIdx].m_ItemType == E_ITEM_DYE)
                {
                    switch (a_CraftingGrid[GridIdx].m_ItemDamage)
                    {
                        case E_META_DYE_BLACK:
                        {
                            red += 23;
                            green += 23;
                            blue += 23;
                            break;
                        }
                        case E_META_DYE_RED:
                        {
                            red += 142;
                            green += 47;
                            blue += 47;
                            break;
                        }
                        case E_META_DYE_GREEN:
                        {
                            red += 95;
                            green += 118;
                            blue += 47;
                            break;
                        }
                        case E_META_DYE_BROWN:
                        {
                            red += 95;
                            green += 71;
                            blue += 47;
                            break;
                        }
                        case E_META_DYE_BLUE:
                        {
                            red += 47;
                            green += 71;
                            blue += 165;
                            break;
                        }
                        case E_META_DYE_PURPLE:
                        {
                            red += 118;
                            green += 59;
                            blue += 165;
                            break;
                        }
                        case E_META_DYE_CYAN:
                        {
                            red += 71;
                            green += 118;
                            blue += 142;
                            break;
                        }
                        case E_META_DYE_LIGHTGRAY:
                        {
                            red += 142;
                            green += 142;
                            blue += 142;
                            break;
                        }
                        case E_META_DYE_GRAY:
                        {
                            red += 71;
                            green += 71;
                            blue += 71;
                            break;
                        }
                        case E_META_DYE_PINK:
                        {
                            red += 225;
                            green += 118;
                            blue += 153;
                            break;
                        }
                        case E_META_DYE_LIGHTGREEN:
                        {
                            red += 118;
                            green += 190;
                            blue += 23;
                            break;
                        }
                        case E_META_DYE_YELLOW:
                        {
                            red += 213;
                            green += 213;
                            blue += 47;
                            break;
                        }
                        case E_META_DYE_LIGHTBLUE:
                        {
                            red += 95;
                            green += 142;
                            blue += 201;
                            break;
                        }
                        case E_META_DYE_MAGENTA:
                        {
                            red += 165;
                            green += 71;
                            blue += 201;
                            break;
                        }
                        case E_META_DYE_ORANGE:
                        {
                            red += 201;
                            green += 118;
                            blue += 47;
                            break;
                        }
                        case E_META_DYE_WHITE:
                        {
                            red += 237;
                            green += 237;
                            blue += 237;
                            break;
                        }
                    }
                    ++dye_count;
                }
                else if (a_CraftingGrid[GridIdx].m_ItemType != E_ITEM_EMPTY)
                {
                    return;
                }
            }
        }

        if (!found)
        {
            return;
        }

        // Calculate the rgb values
        double maximum = static_cast<double>(std::max({red, green, blue}));

        double average_red = red / dye_count;
        double average_green = green / dye_count;
        double average_blue = blue / dye_count;
        double average_max = maximum / dye_count;

        double max_average = std::max({average_red, average_green, average_blue});

        double gain_factor = average_max / max_average;


        unsigned char result_red = static_cast<unsigned char>(average_red * gain_factor);
        unsigned char result_green = static_cast<unsigned char>(average_green * gain_factor);
        unsigned char result_blue = static_cast<unsigned char>(average_blue * gain_factor);

        // Set the results values
        a_Recipe->m_Result = temp;
        a_Recipe->m_Result.m_ItemColor.SetColor(result_red, result_green, result_blue);
    }
}