#include "GameSystem.h"

GameSystem::GameSystem() {
	Start();
}

void GameSystem::Start() {
	while (true) {
		PrintMenu();
		string menuChoiceStr;
		int menuChoice;
		getline(cin, menuChoiceStr);
		//檢查輸入的選項是否為正整數
		if (!isUnsignedNumber(menuChoiceStr)) {
			cout << "指令錯誤，請重新輸入。" << endl << endl;
			continue;
		}
		stringstream menuChoiceSS(menuChoiceStr);
		menuChoiceSS >> menuChoice;
		//選項最多4個
		if (!(menuChoice >= 1 && menuChoice <= 5)) {
			cout << "指令錯誤，請重新輸入。" << endl << endl;
			continue;
		}
		//選擇創建角色
		if (menuChoice == 1) {
			//角色數量最多只能5隻
			if (_charactersList.size() >= 5) {
				cout << "角色數量已達上限!" << endl << endl;
				continue;
			}
			cout << "請輸入角色名稱 : ";
			string name;
			int point = 5, str = 1, dex = 1, con = 1;
			//檢查輸入的名稱是否符合規定
			while (true) {
				getline(cin, name);
				if (!checkName(name)) {
					cout << "名稱不合規定，請重新輸入 : ";
					continue;
				}
				break;
			}
			//分配創建出來角色的屬性
			string createAttrChoiceStr;
			int createAttrChoice;
			while (point>0) {
				cout << endl;
				cout << "1. 目前STR : " << str << endl
					<< "2. 目前DEX : " << dex << endl
					<< "3. 目前CON : " << con << endl;
				cout << "目前剩餘點數 : " << point << endl;
				cout << "請選擇欲增加之屬性 : ";
				getline(cin, createAttrChoiceStr);
				if (!isUnsignedNumber(createAttrChoiceStr)) {
					cout << "指令錯誤，請重新輸入。" << endl << endl;
					continue;
				}
				stringstream createAttrChoiceSS(createAttrChoiceStr);
				createAttrChoiceSS >> createAttrChoice;
				if (!(createAttrChoice >= 1 && createAttrChoice <= 3)) {
					cout << "指令錯誤，請重新輸入。" << endl << endl;
					continue;
				}
				switch (createAttrChoice) {
				case 1:
					str++;
					break;
				case 2:
					dex++;
					break;
				case 3:
					con++;
					break;
				}
				point--;
			}
			Character hero(name, str, dex, con);
			_charactersList.push_back(hero);  //將創建出來的角色存放至Vector
			cout << "創建成功!\n" << endl << endl;
			cout << hero.getInformation() << endl;  //顯示創建的角色資訊
		}
		//角色作戰
		else if (menuChoice == 2) {
			//沒有角色可以作戰
			if (_charactersList.size() == 0) {
				cout << "沒有角色可供選擇!" << endl;
				continue;
			}
			cout << endl;
			string fightChoiceStr;
			int fightChoice;
			while (true) {
				//列出所有角色
				for (int i = 0; i<(int)_charactersList.size(); i++)
				{
					cout << (i + 1) << ". " << _charactersList[i].getName() << endl;
				}
				//選擇角色作戰
				cout << "請選擇角色進行作戰 : ";
				getline(cin, fightChoiceStr);
				if (!isUnsignedNumber(fightChoiceStr)) {
					cout << "指令錯誤，請重新輸入。" << endl << endl;
					continue;
				}
				stringstream fightChoiceSS(fightChoiceStr);
				fightChoiceSS >> fightChoice;
				if (!(fightChoice >= 1 && fightChoice <= (int)_charactersList.size())) {
					cout << "指令錯誤，請重新輸入。" << endl << endl;
					continue;
				}
				break;
			}
			//系統預設的4隻角色
			_monstersList = { Character("哥布林", 1, 6, 1), Character("史萊姆", 1, 1, 6), Character("獸人", 6, 1, 1), Character("大青蛙", 3, 2, 3) };
			//隨機挑選一隻和玩家PK
			srand((unsigned)time(NULL));
			int monsterChoice = rand() % _monstersList.size();
			//讓戰鬥時敵人的等級與角色相同,敵人升級時為三者屬性各加 1
			int level = _charactersList[fightChoice - 1].getLevel();
			if (level > 1) {
				level--;  //計算敵人與角色的等差
				_monstersList[monsterChoice].LevelUP(level, level, level);  //更新敵人的屬性
			}
			//開始戰鬥，分出勝負
			//玩家勝利
			if (_charactersList[fightChoice - 1].Fight(_monstersList[monsterChoice])) {
				cout << _monstersList[monsterChoice].getName() << "倒下了!獲勝的是 : " << _charactersList[fightChoice - 1].getName() << endl << endl;
				int point = 3, str = 0, dex = 0 , con = 0;
				int exp = _charactersList[fightChoice - 1].getExp();
				switch (exp) {
				case 100:
				case 300:
				case 600:
				case 1000:
					if (_charactersList[fightChoice - 1].getLevel() == 5) {
						break;
					}
					cout << "角色升級了!獲1得新的3點點數可以分到當前屬性上:" << endl << endl;
					//角色升級，分配3點點數
					string levelUpAttrChoiceStr;
					int levelUpAttrChoice;
					while (point>0) {
						cout << endl;
						cout << "1. 目前STR : " << _charactersList[fightChoice - 1].getStr() + str << endl
							<< "2. 目前DEX : " << _charactersList[fightChoice - 1].getDex() + dex << endl
							<< "3. 目前CON : " << _charactersList[fightChoice - 1].getCon() + con << endl;
						cout << "目前剩餘點數 : " << point << endl;
						cout << "請選擇欲增加之屬性 : ";
						getline(cin, levelUpAttrChoiceStr);
						if (!isUnsignedNumber(levelUpAttrChoiceStr)) {
							cout << "指令錯誤，請重新輸入。" << endl << endl;
							continue;
						}
						stringstream levelUpAttrChoiceSS(levelUpAttrChoiceStr);
						levelUpAttrChoiceSS >> levelUpAttrChoice;
						if (!(levelUpAttrChoice >= 1 && levelUpAttrChoice <= 3)) {
							cout << "指令錯誤，請重新輸入。" << endl << endl;
							continue;
						}
						switch (levelUpAttrChoice) {
						case 1:
							str++;
							break;
						case 2:
							dex++;
							break;
						case 3:
							con++;
							break;
						}
						point--;
					}
					cout << "\n配點完成!" << _charactersList[fightChoice - 1].getName() << "目前的等級達到" << _charactersList[fightChoice - 1].LevelUP(str, dex, con) << "。" << endl << endl;
					cout << _charactersList[fightChoice - 1].getInformation() << endl;
					break;
				}
			}
			//玩家戰敗
			else {
				cout << _charactersList[fightChoice - 1].getName() << "倒下了!獲勝的是 : " << _monstersList[monsterChoice].getName() << endl << endl;
			}
		}
		//列出所有角色的資訊
		else if (menuChoice == 3) {
			for (Character hero : _charactersList) {
				cout << hero.getInformation() << endl;
			}
		}
		//刪除角色
		else if (menuChoice == 4) {
			if (_charactersList.size() == 0) {
				cout << "沒有角色可供選擇!" << endl << endl;
			}
			string deleteChoiceStr;
			int deleteChoice;
			while (true) {
				cout << endl;
				for (int i = 0; i < (int)_charactersList.size(); i++) {
					cout << (i + 1) << ". " << _charactersList[i].getName() << endl;
				}
				cout << "請輸入欲刪除的角色 : " << endl;

				getline(cin, deleteChoiceStr);
				if (!isUnsignedNumber(deleteChoiceStr)) {
					cout << "指令錯誤，請重新輸入。" << endl << endl;
					continue;
				}
				stringstream deleteChoiceSS(deleteChoiceStr);
				deleteChoiceSS >> deleteChoice;
				if (deleteChoice == 0) {
					cout << endl;
					cout << "不刪除角色，跳回選單。" << endl << endl;
					break;
				}
				else if (deleteChoice >= 1 && deleteChoice <= (int)_charactersList.size()) {
					cout << "已刪除角色 : " << _charactersList[deleteChoice - 1].getName() << endl << endl;
					_charactersList.erase(_charactersList.begin() + deleteChoice - 1);
				}
				break;
			}

		}
		else {
			break;
		}
	}
}

void GameSystem::PrintMenu() {
	cout << "1. 創建角色" << endl
		<< "2. 角色作戰" << endl
		<< "3. 列出所有角色" << endl
		<< "4. 刪除角色" << endl
		<< "5. 離開" << endl;
}

//檢查是否為正整數
bool GameSystem::isUnsignedNumber(string str) {
	for (char s : str) {
		if (!(s >= '0' && s <= '9')) {
			return false;
		}
	}
	return true;
}
//檢查輸入的名稱是否符合規定
bool GameSystem::checkName(string name) {
	if ((int)name.length() == 0) {
		return false;
	}
	char table[] = { ' ', '\\', '/', ':', '*', '?', '"', '<', '>', '|' };
	for (char n : name)
	{
		for (char t : table)
		{
			if (n == t)
			{
				return false;
			}
		}
	}
	return true;
}