AdventuresInLestoria/Crawler/Merchant.cpp

#pragma region License
/*
License (OLC-3)
~~~~~~~~~~~~~~~

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are permitted provided that the following conditions are met:

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2. Redistributions or derivative works in binary form must reproduce the above
copyright notice. This list of conditions and the following	disclaimer must be
reproduced in the documentation and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its contributors may
be used to endorse or promote products derived from this software without specific
prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS	"AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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Portions of this software are copyright © 2023 The FreeType
Project (www.freetype.org). Please see LICENSE_FT.txt for more information.
All rights reserved.
*/
#pragma endregion

#include "Menu.h"
#include "Merchant.h"
#include "Crawler.h"

INCLUDE_game
INCLUDE_ITEM_CATEGORIES

std::map<Chapter,std::vector<Merchant>>Merchant::merchants;
std::map<ITCategory,std::vector<Item*>>Merchant::sortedItems;
MerchantFunctionPrimingData Merchant::purchaseFunctionPrimed("CanPurchaseItem()");
MerchantFunctionPrimingData Merchant::sellFunctionPrimed("CanSellItem()");
Merchant Merchant::travelingMerchant;

const Merchant&Merchant::GetRandomMerchant(Chapter chapter){
	const Merchant&newMerchant=merchants[chapter][rand()%(merchants[chapter].size()-1)];
	return newMerchant;
}

const std::string&Merchant::GetDisplayName()const{
	return displayName;
}

const std::vector<Item>&Merchant::GetShopItems()const{
	return shopItems;
}

const std::vector<Item*>&Merchant::GetShopItems(ITCategory category){
	return sortedItems[category];
}

Merchant&Merchant::AddMerchant(Chapter chapter){
	merchants[chapter].push_back({});
	return merchants[chapter].back();
}

void Merchant::AddItem(IT item,uint32_t amt,uint8_t enhancementLevel){
	shopItems.push_back(Item{amt,item,enhancementLevel});
	if(&GetCurrentTravelingMerchant()==this){
		UpdateSortedItemsList();
		Menu::MerchantInventorySlotsUpdated(ITEM_DATA[item].Category());
	}
}

void Merchant::UpdateSortedItemsList(){
	const Merchant&merchant=GetCurrentTravelingMerchant();
	for(auto&[key,items]:ITEM_CATEGORIES){
		sortedItems[key].clear();
	}
	std::for_each(merchant.shopItems.begin(),merchant.shopItems.end(),[](const Item&item){
		sortedItems[item.Category()].push_back(const_cast<Item*>(&item));
	});
}

INCLUDE_DATA

void Merchant::Initialize(){
	for(int chapter=1;chapter<=6;chapter++){
		std::string merchantChapterFilename="assets/"+"merchant_directory"_S+"Chapter "+std::to_string(chapter)+" Merchants.txt";
		if(!std::filesystem::exists(merchantChapterFilename))ERR("WARNING! Could not find file "<<std::quoted(merchantChapterFilename)<<" for merchant reading!");
		utils::datafile::Read(DATA,merchantChapterFilename);
	}
	for(int chapter=1;chapter<=6;chapter++){
		int merchantCount=0;
		utils::datafile&chapterMerchantInfo=DATA["Merchant"][std::format("Chapter {}",chapter)];
		for(auto&[key,size]:chapterMerchantInfo){
			utils::datafile&data=chapterMerchantInfo.GetProperty(key);
			Merchant&newMerchant=AddMerchant(chapter);
			for(int itemNumber=1;auto&[key,size]:data){
				if(key=="DisplayName")newMerchant.displayName=data[key].GetString();
				else
				if(key.starts_with("Item[")){
					std::string itemKey=std::format("Item[{}]",itemNumber);
					if(data.HasProperty(itemKey)){
						IT itemName=data[itemKey].GetString();
						if(data[itemKey].GetValueCount()>1){
							int qty=data[itemKey].GetInt(1);
							newMerchant.AddItem(itemName,qty);
						}else{
							newMerchant.AddItem(itemName,INFINITE);
						}
					}else{
						ERR("Could not find item "<<itemNumber<<" in Merchant "<<merchantCount<<" of Chapter "<<chapter<<"!");
					}
					itemNumber++;
				}else{
					ERR("Unhandled key "<<std::quoted(key)<<" inside of Merchant "<<merchantCount<<" of Chapter "<<chapter<<"!");
				}
			}
			merchantCount++;
		}
		std::cout<<std::format("Added {} merchants to Chapter {}",merchantCount,chapter)<<std::endl;
	}
	Merchant::RandomizeTravelingMerchant();
}
bool Merchant::CanPurchaseItem(IT item,uint32_t amt)const{
	bool itemAvailable=false;
	const Item*foundItem=nullptr;
	for(const Item&it:shopItems){
		if(it==item&&it.Amt()>=amt&&it.CanBePurchased()){
			itemAvailable=true;
			foundItem=&it;
			break;
		}
	}

	purchaseFunctionPrimed.amt=amt;
	purchaseFunctionPrimed.item=item;
	return purchaseFunctionPrimed= 
		itemAvailable&&
		foundItem!=nullptr&&
		game->GetPlayer()->GetMoney()>=foundItem->BuyValue()*amt;
};
bool Merchant::CanSellItem(IT item,uint32_t amt)const{
	const ItemInfo&it=ITEM_DATA[item];

	sellFunctionPrimed.amt=amt;
	sellFunctionPrimed.item=item;
	return sellFunctionPrimed=
		it.CanBeSold()&&
		Inventory::GetItemCount(item)>=amt;
};
void Merchant::PurchaseItem(IT item,uint32_t amt){
	purchaseFunctionPrimed.Validate(item,amt);
	
	uint32_t totalCost=0U;
	for(Item&it:shopItems){
		if(it==item){
			if(it.Amt()!=INFINITE){
				it.SetAmt(it.Amt()-amt);
			}
			totalCost=it.BuyValue()*amt;
			break;
		}
	}

	Inventory::AddItem(item,amt);
	game->GetPlayer()->SetMoney(game->GetPlayer()->GetMoney()-totalCost);

	purchaseFunctionPrimed=false;
};
void Merchant::SellItem(IT item,uint32_t amt){
	sellFunctionPrimed.Validate(item,amt);
	
	uint32_t totalCost=0U;
	bool itemFound=false;
	for(Item&it:shopItems){
		if(it==item){
			if(it.Amt()!=INFINITE){
				it.SetAmt(it.Amt()+amt);
			}
			itemFound=true;
			break;
		}
	}
	if(!itemFound){
		AddItem(item); //This may not be a feature we include in future versions of the game. For now let's allow it.
	}
	totalCost=ITEM_DATA[item].GetSellValue()*amt;

	Inventory::RemoveItem(item,amt);
	game->GetPlayer()->SetMoney(game->GetPlayer()->GetMoney()+totalCost);

	sellFunctionPrimed=false;
};

void Merchant::RandomizeTravelingMerchant(){
	travelingMerchant=GetRandomMerchant(game->GetCurrentChapter());
	for(auto&[key,items]:ITEM_CATEGORIES){
		Menu::MerchantInventorySlotsUpdated(key);
	}
	UpdateSortedItemsList();
};
Merchant&Merchant::GetCurrentTravelingMerchant(){
	return travelingMerchant;
};