b355bdecce
git-svn-id: http://mc-server.googlecode.com/svn/trunk@549 0a769ca7-a7f5-676a-18bf-c427514a06d6
521 lines
14 KiB
C++
521 lines
14 KiB
C++
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// CraftingRecipes.cpp
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// Interfaces to the cCraftingRecipes class representing the storage of crafting recipes
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#include "Globals.h"
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#include "CraftingRecipes.h"
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cCraftingRecipes::cCraftingRecipes(void)
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{
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LoadRecipes();
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}
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cCraftingRecipes::~cCraftingRecipes()
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{
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ClearRecipes();
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}
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/// Offers an item resulting from the crafting grid setup. Doesn't modify the grid
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cItem cCraftingRecipes::Offer(const cItem * a_CraftingGrid, int a_GridWidth, int a_GridHeight)
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{
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std::auto_ptr<cRecipe> Recipe(FindRecipe(a_CraftingGrid, a_GridWidth, a_GridHeight));
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if (Recipe.get() == NULL)
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{
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return cItem();
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}
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return Recipe->m_Result;
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}
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/// Crafts the item resulting from the crafting grid setup. Modifies the grid, returns the crafted item
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cItem cCraftingRecipes::Craft(cItem * a_CraftingGrid, int a_GridWidth, int a_GridHeight)
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{
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std::auto_ptr<cRecipe> Recipe(FindRecipe(a_CraftingGrid, a_GridWidth, a_GridHeight));
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if (Recipe.get() == NULL)
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{
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return cItem();
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}
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// Consume the ingredients from the grid:
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for (cRecipeSlots::const_iterator itr = Recipe->m_Ingredients.begin(); itr != Recipe->m_Ingredients.end(); ++itr)
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{
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int GridIdx = itr->x + a_GridWidth * itr->y;
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a_CraftingGrid[GridIdx].m_ItemCount -= itr->m_Item.m_ItemCount;
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if (a_CraftingGrid[GridIdx].m_ItemCount <= 0)
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{
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a_CraftingGrid[GridIdx].Empty();
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}
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}
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return Recipe->m_Result;
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}
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void cCraftingRecipes::LoadRecipes(void)
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{
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LOG("-- Loading crafting recipes from crafting.txt --");
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ClearRecipes();
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// Load the crafting.txt file:
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cFile f;
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if (!f.Open("crafting.txt", cFile::fmRead))
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{
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LOGWARNING("Cannot open file \"crafting.txt\", no crafting recipes will be available!");
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return;
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}
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AString Everything;
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f.ReadRestOfFile(Everything);
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f.Close();
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// Split it into lines, then process each line as a single recipe:
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AStringVector Split = StringSplit(Everything, "\n");
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int LineNum = 1;
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for (AStringVector::const_iterator itr = Split.begin(); itr != Split.end(); ++itr, ++LineNum)
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{
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// Remove anything after a '#' sign and trim away the whitespace:
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AString Recipe = TrimString(itr->substr(0, itr->find('#')));
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if (Recipe.empty())
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{
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// Empty recipe
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continue;
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}
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AddRecipeLine(LineNum, Recipe);
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} // for itr - Split[]
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LOG("-- %d crafting recipes loaded from crafting.txt --", m_Recipes.size());
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}
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void cCraftingRecipes::ClearRecipes(void)
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{
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for (cRecipes::iterator itr = m_Recipes.begin(); itr != m_Recipes.end(); ++itr)
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{
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delete *itr;
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}
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m_Recipes.clear();
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}
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void cCraftingRecipes::AddRecipeLine(int a_LineNum, const AString & a_RecipeLine)
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{
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AStringVector Sides = StringSplit(a_RecipeLine, "=");
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if (Sides.size() != 2)
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{
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LOGWARNING("crafting.txt: line %d: A single '=' was expected, got %d", a_LineNum, (int)Sides.size() - 1);
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return;
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}
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std::auto_ptr<cCraftingRecipes::cRecipe> Recipe(new cCraftingRecipes::cRecipe);
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// Parse the result:
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AStringVector ResultSplit = StringSplit(Sides[0], ",");
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if (ResultSplit.empty())
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{
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LOGWARNING("crafting.txt: line %d: Result is empty, ignoring the recipe.", a_LineNum);
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return;
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}
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if (!ParseItem(ResultSplit[0], Recipe->m_Result))
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{
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LOGWARNING("crafting.txt: line %d: Cannot parse result item, ignoring the recipe.", a_LineNum);
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return;
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}
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if (ResultSplit.size() > 1)
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{
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Recipe->m_Result.m_ItemCount = atoi(ResultSplit[1].c_str());
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if (Recipe->m_Result.m_ItemCount == 0)
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{
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LOGWARNING("crafting.txt: line %d: Cannot parse result count, ignoring the recipe.", a_LineNum);
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return;
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}
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}
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else
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{
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Recipe->m_Result.m_ItemCount = 1;
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}
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// Parse each ingredient:
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AStringVector Ingredients = StringSplit(Sides[1], "|");
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int Num = 1;
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for (AStringVector::const_iterator itr = Ingredients.begin(); itr != Ingredients.end(); ++itr, ++Num)
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{
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if (!ParseIngredient(*itr, Recipe.get()))
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{
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LOGWARNING("crafting.txt: line %d: Cannot parse ingredient #%d, ignoring the recipe.", a_LineNum, Num);
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return;
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}
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} // for itr - Ingredients[]
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NormalizeIngredients(Recipe.get());
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m_Recipes.push_back(Recipe.release());
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}
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bool cCraftingRecipes::ParseItem(const AString & a_String, cItem & a_Item)
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{
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// The caller provides error logging
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AStringVector Split = StringSplit(a_String, "^");
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if (Split.empty())
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{
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return false;
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}
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if (!StringToItem(Split[0], a_Item))
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{
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return false;
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}
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if (Split.size() > 1)
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{
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AString Damage = TrimString(Split[1]);
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a_Item.m_ItemHealth = atoi(Damage.c_str());
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if ((a_Item.m_ItemHealth == 0) && (Damage.compare("0") != 0))
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{
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// Parsing the number failed
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return false;
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}
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}
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// Success
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return true;
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}
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bool cCraftingRecipes::ParseIngredient(const AString & a_String, cRecipe * a_Recipe)
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{
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// a_String is in this format: "ItemType^damage, X:Y, X:Y, X:Y..."
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AStringVector Split = StringSplit(a_String, ",");
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if (Split.size() < 2)
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{
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// Not enough split items
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return false;
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}
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cItem Item;
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if (!ParseItem(Split[0], Item))
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{
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return false;
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}
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Item.m_ItemCount = 1;
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cCraftingRecipes::cRecipeSlots TempSlots;
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for (AStringVector::const_iterator itr = Split.begin() + 1; itr != Split.end(); ++itr)
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{
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// Parse the coords in the split item:
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AStringVector Coords = StringSplit(*itr, ":");
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if ((Coords.size() == 1) && (TrimString(Coords[0]) == "*"))
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{
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cCraftingRecipes::cRecipeSlot Slot;
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Slot.m_Item = Item;
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Slot.x = -1;
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Slot.y = -1;
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TempSlots.push_back(Slot);
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continue;
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}
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if (Coords.size() != 2)
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{
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return false;
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}
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Coords[0] = TrimString(Coords[0]);
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Coords[1] = TrimString(Coords[1]);
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if (Coords[0].empty() || Coords[1].empty())
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{
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return false;
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}
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cCraftingRecipes::cRecipeSlot Slot;
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Slot.m_Item = Item;
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switch (Coords[0][0])
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{
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case '1': Slot.x = 0; break;
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case '2': Slot.x = 1; break;
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case '3': Slot.x = 2; break;
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case '*': Slot.x = -1; break;
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default:
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{
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return false;
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}
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}
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switch (Coords[1][0])
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{
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case '1': Slot.y = 0; break;
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case '2': Slot.y = 1; break;
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case '3': Slot.y = 2; break;
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case '*': Slot.y = -1; break;
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default:
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{
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return false;
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}
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}
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TempSlots.push_back(Slot);
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} // for itr - Split[]
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// Append the ingredients:
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a_Recipe->m_Ingredients.insert(a_Recipe->m_Ingredients.end(), TempSlots.begin(), TempSlots.end());
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return true;
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}
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void cCraftingRecipes::NormalizeIngredients(cCraftingRecipes::cRecipe * a_Recipe)
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{
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// Calculate the minimum coords for ingredients, excluding the "anywhere" items:
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int MinX = MAX_GRID_WIDTH, MaxX = 0;
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int MinY = MAX_GRID_HEIGHT, MaxY = 0;
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for (cRecipeSlots::const_iterator itr = a_Recipe->m_Ingredients.begin(); itr != a_Recipe->m_Ingredients.end(); ++itr)
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{
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if (itr->x >= 0)
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{
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MinX = std::min(itr->x, MinX);
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MaxX = std::max(itr->x, MaxX);
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}
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if (itr->y >= 0)
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{
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MinY = std::min(itr->y, MinY);
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MaxY = std::max(itr->y, MaxY);
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}
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} // for itr - a_Recipe->m_Ingredients[]
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// Move ingredients so that the minimum coords are 0:0
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for (cRecipeSlots::iterator itr = a_Recipe->m_Ingredients.begin(); itr != a_Recipe->m_Ingredients.end(); ++itr)
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{
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if (itr->x >= 0)
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{
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itr->x -= MinX;
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}
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if (itr->y >= 0)
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{
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itr->y -= MinY;
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}
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} // for itr - a_Recipe->m_Ingredients[]
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a_Recipe->m_Width = std::max(MaxX - MinX + 1, 1);
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a_Recipe->m_Height = std::max(MaxY - MinY + 1, 1);
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// TODO: Compress two same ingredients with the same coords into a single ingredient with increased item count
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}
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cCraftingRecipes::cRecipe * cCraftingRecipes::FindRecipe(const cItem * a_CraftingGrid, int a_GridWidth, int a_GridHeight)
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{
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ASSERT(a_GridWidth <= MAX_GRID_WIDTH);
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ASSERT(a_GridHeight <= MAX_GRID_HEIGHT);
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// Get the real bounds of the crafting grid:
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int GridLeft = MAX_GRID_WIDTH, GridTop = MAX_GRID_HEIGHT;
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int GridRight = 0, GridBottom = 0;
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for (int y = 0; y < a_GridHeight; y++ ) for(int x = 0; x < a_GridWidth; x++)
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{
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if (!a_CraftingGrid[x + y * a_GridWidth].IsEmpty())
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{
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GridRight = MAX(x, GridRight);
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GridBottom = MAX(y, GridBottom);
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GridLeft = MIN(x, GridLeft);
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GridTop = MIN(y, GridTop);
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}
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}
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int GridWidth = GridRight - GridLeft + 1;
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int GridHeight = GridBottom - GridTop + 1;
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// Search in the possibly minimized grid, but keep the stride:
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const cItem * Grid = a_CraftingGrid + GridLeft + (a_GridWidth * GridTop);
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cRecipe * Recipe = FindRecipeCropped(Grid, GridWidth, GridHeight, a_GridWidth);
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if (Recipe == NULL)
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{
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return NULL;
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}
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// A recipe has been found, move it to correspond to the original crafting grid:
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for (cRecipeSlots::iterator itrS = Recipe->m_Ingredients.begin(); itrS != Recipe->m_Ingredients.end(); ++itrS)
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{
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itrS->x += GridLeft;
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itrS->y += GridTop;
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} // for itrS - Recipe->m_Ingredients[]
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return Recipe;
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}
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cCraftingRecipes::cRecipe * cCraftingRecipes::FindRecipeCropped(const cItem * a_CraftingGrid, int a_GridWidth, int a_GridHeight, int a_GridStride)
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{
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for (cRecipes::const_iterator itr = m_Recipes.begin(); itr != m_Recipes.end(); ++itr)
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{
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// Both the crafting grid and the recipes are normalized. The only variable possible is the "anywhere" items.
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// 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.
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// 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)
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// Calculate the maximum offsets for this recipe relative to the grid size, and iterate through all combinations of offsets.
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// Also, this calculation automatically filters out recipes that are too large for the current grid - the loop won't be entered at all.
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int MaxOfsX = a_GridWidth - (*itr)->m_Width;
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int MaxOfsY = a_GridHeight - (*itr)->m_Height;
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for (int x = 0; x <= MaxOfsX; x++) for (int y = 0; y <= MaxOfsY; y++)
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{
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cRecipe * Recipe = MatchRecipe(a_CraftingGrid, a_GridWidth, a_GridHeight, a_GridStride, *itr, x, y);
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if (Recipe != NULL)
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{
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return Recipe;
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}
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} // for y, for x
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} // for itr - m_Recipes[]
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// No matching recipe found
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return NULL;
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}
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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)
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{
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// Check the regular items first:
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bool HasMatched[MAX_GRID_WIDTH][MAX_GRID_HEIGHT];
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memset(HasMatched, 0, sizeof(HasMatched));
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for (cRecipeSlots::const_iterator itrS = a_Recipe->m_Ingredients.begin(); itrS != a_Recipe->m_Ingredients.end(); ++itrS)
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{
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if ((itrS->x < 0) || (itrS->y < 0))
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{
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// "Anywhere" item, process later
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continue;
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}
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ASSERT(itrS->x + a_OffsetX < a_GridWidth);
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ASSERT(itrS->y + a_OffsetY < a_GridHeight);
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int GridID = (itrS->x + a_OffsetX) + a_GridStride * (itrS->y + a_OffsetY);
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if (
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(itrS->x >= a_GridWidth) ||
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(itrS->y >= a_GridHeight) ||
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(itrS->m_Item.m_ItemID != a_CraftingGrid[GridID].m_ItemID) || // same item type?
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(itrS->m_Item.m_ItemCount > a_CraftingGrid[GridID].m_ItemCount) || // not enough items
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(
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(itrS->m_Item.m_ItemHealth > 0) && // should compare damage values?
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(itrS->m_Item.m_ItemHealth != a_CraftingGrid[GridID].m_ItemHealth)
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)
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)
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{
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// Doesn't match
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return NULL;
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}
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HasMatched[itrS->x + a_OffsetX][itrS->y + a_OffsetY] = true;
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} // for itrS - Recipe->m_Ingredients[]
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// Process the "Anywhere" items now, and only in the cells that haven't matched yet
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// The "anywhere" items are processed on a first-come-first-served basis.
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// Do not use a recipe with one horizontal and one vertical "anywhere" ("*:1, 1:*") as it may not match properly!
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cRecipeSlots MatchedSlots; // Stores the slots of "anywhere" items that have matched, with the match coords
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for (cRecipeSlots::const_iterator itrS = a_Recipe->m_Ingredients.begin(); itrS != a_Recipe->m_Ingredients.end(); ++itrS)
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{
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if ((itrS->x >= 0) && (itrS->y >= 0))
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{
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// Regular item, already processed
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continue;
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}
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int StartX = 0, EndX = a_GridWidth - 1;
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int StartY = 0, EndY = a_GridHeight - 1;
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if (itrS->x >= 0)
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{
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StartX = itrS->x;
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EndX = itrS->x;
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}
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else if (itrS->y >= 0)
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{
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StartY = itrS->y;
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EndY = itrS->y;
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}
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bool Found = false;
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for (int x = StartX; x <= EndX; x++) for (int y = StartY; y <= EndY; y++)
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{
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if (HasMatched[x][y])
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{
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// Already matched some other item
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continue;
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}
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int GridIdx = x + a_GridStride * y;
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if (
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(a_CraftingGrid[GridIdx].m_ItemID == itrS->m_Item.m_ItemID) &&
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(
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(itrS->m_Item.m_ItemHealth < 0) || // doesn't want damage comparison
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(itrS->m_Item.m_ItemHealth == a_CraftingGrid[GridIdx].m_ItemHealth) // the damage matches
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)
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)
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{
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HasMatched[x][y] = true;
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Found = true;
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MatchedSlots.push_back(*itrS);
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MatchedSlots.back().x = x;
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MatchedSlots.back().y = y;
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break;
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}
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} // for y, for x - "anywhere"
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if (!Found)
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{
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return NULL;
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}
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} // for itrS - a_Recipe->m_Ingredients[]
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// Check if the whole grid has matched:
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for (int x = 0; x < a_GridWidth; x++) for (int y = 0; y < a_GridHeight; y++)
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{
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if (!HasMatched[x][y] && !a_CraftingGrid[x + a_GridStride * y].IsEmpty())
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{
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// There's an unmatched item in the grid
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return NULL;
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}
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} // for y, for x
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// The recipe has matched. Create a copy of the recipe and set its coords to match the crafting grid:
|
|
std::auto_ptr<cRecipe> Recipe(new 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.insert(Recipe->m_Ingredients.end(), MatchedSlots.begin(), MatchedSlots.end());
|
|
return Recipe.release();
|
|
}
|
|
|
|
|
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