//DSES原创水印
#include <iostream>
#include <cstdlib>
#include <ctime>
#include <string>
using namespace std;

// 玩家全局状态
int hp = 100;
int food = 5;
int water = 5;
int weapon = 1;
bool hasPartner = false;
bool trustPartner = true;
int day = 1;

// 函数声明
void GameStart();
int Scene1();
int Scene2(int pre);
int Scene3(int pre);
int Scene4(int pre);
int Scene5(int pre);
int Scene6(int pre);
int Scene7(int pre);
int Scene8(int pre);
void ShowEnd(int id);
void ShowStatus();
int GetChoice(int minC, int maxC);
void ClearScreen();

int main()
{
	srand((unsigned int)time(NULL));
	
	cout << "=============================================\n";
	cout << "            末日余生 - 长篇抉择游戏           \n";
	cout << "=============================================\n";
	cout << "背景：一场致命病毒席卷全球，城市沦为死城。\n";
	cout << "丧尸横行、资源匮乏、人心叵测，你必须不断做出选择，努力活下去。\n";
	cout << "每一个选择，都将改变你的命运。\n\n";
	cout << "按下回车键开始游戏...\n";
	cin.get();
	
	ClearScreen();
	GameStart();
	
	cout << "\n游戏结束，按下回车键退出...\n";
	cin.ignore();
	cin.get();
	return 0;
}

// 跨平台清屏
void ClearScreen()
{
#ifdef _WIN32
	system("cls");
#else
	system("clear");
#endif
}

// 通用选择输入（防错输入）
int GetChoice(int minC, int maxC)
{
	int op;
	while (true)
	{
		cout << "请输入选择(" << minC << "-" << maxC << ")：";
		if (cin >> op && op >= minC && op <= maxC)
		{
			cin.ignore(1024, '\n');
			return op;
		}
		cin.clear();
		cin.ignore(1024, '\n');
		cout << "输入无效，请重新选择！\n";
	}
}

// 显示玩家当前状态
void ShowStatus()
{
	cout << "\n---------- 当前状态 ----------\n";
	cout << "生存天数：第" << day << "天\n";
	cout << "生命值：" << hp << " | 食物：" << food << " | 水源：" << water << "\n";
	cout << "武器强度：" << weapon << "(0=无 1=小刀 2=铁棍 3=枪械)\n";
	cout << "队友：" << (hasPartner ? "有" : "无") << "\n";
	cout << "-----------------------------\n\n";
}

// 游戏主流程
void GameStart()
{
	int s1 = Scene1();
	int s2 = Scene2(s1);
	int s3 = Scene3(s2);
	int s4 = Scene4(s3);
	int s5 = Scene5(s4);
	int s6 = Scene6(s5);
	int s7 = Scene7(s6);
	int s8 = Scene8(s7);
	ShowEnd(s8);
}

// 场景1：苏醒初始抉择
int Scene1()
{
	ClearScreen();
	day = 1;
	cout << "【第1天】\n";
	cout << "你在一栋倒塌的写字楼废墟中醒来，头部隐隐作痛。\n";
	cout << "四周死寂，远处不断传来丧尸低沉的嘶吼。\n";
	cout << "你站起身，面前有三条路：\n";
	cout << "1. 前往一楼便利店（物资多，丧尸密集）\n";
	cout << "2. 前往地下停车场（隐蔽，可能找到武器/车辆）\n";
	cout << "3. 逃向城外荒野（安全，几乎无物资）\n\n";
	
	int op = GetChoice(1, 3);
	ShowStatus();
	
	if (op == 1) return 1;
	else if (op == 2) return 2;
	return 3;
}

// 场景2：承接场景1分支
int Scene2(int pre)
{
	ClearScreen();
	day = 2;
	cout << "【第2天】\n";
	int op;
	if (pre == 1)
	{
		cout << "你来到便利店，角落里蹲着两只丧尸。\n";
		cout << "1. 悄悄绕路搜刮物资\n";
		cout << "2. 捡木棍上前战斗\n";
		cout << "3. 放弃物资立刻撤离\n\n";
		op = GetChoice(1, 3);
		if (op == 1)
		{
			food += 3; water += 3;
			cout << "你拿到物资，悄悄离开。\n";
			return 11;
		}
		else if (op == 2)
		{
			weapon = 2; hp -= 20;
			cout << "缠斗击退丧尸，你也受了伤。\n";
			return 12;
		}
		else
		{
			cout << "你放弃物资快速离开。\n";
			return 13;
		}
	}
	else if (pre == 2)
	{
		cout << "地下停车场昏暗，你捡到一把小刀，同时听到脚步声。\n";
		cout << "1. 躲在车后观察来人\n";
		cout << "2. 主动上前查看\n";
		cout << "3. 拿上小刀立刻离开\n\n";
		op = GetChoice(1, 3);
		if (op == 1) return 21;
		else if (op == 2)
		{
			hp -= 30;
			cout << "双方发生冲突，你负伤离开。\n";
			return 22;
		}
		else
		{
			weapon = 1;
			cout << "你带走小刀，迅速撤离。\n";
			return 23;
		}
	}
	else
	{
		cout << "你逃到城外荒野，没有丧尸，但缺少食物水源。\n";
		cout << "1. 在大树下露宿\n";
		cout << "2. 冒险折返城市边缘找物资\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 31;
		return 32;
	}
	ShowStatus();
	return 0;
}

// 场景3
int Scene3(int pre)
{
	ClearScreen();
	day = 3;
	cout << "【第3天】\n";
	int op;
	if (pre == 11 || pre == 12 || pre == 13)
	{
		cout << "你走到主干道，路边尸体旁似乎有闪光物品。\n";
		cout << "1. 上前搜刮物品\n";
		cout << "2. 绕道远离尸体\n\n";
		op = GetChoice(1, 2);
		if (op == 1)
		{
			weapon = 3;
			cout << "你捡到一把手枪！\n";
			return 111;
		}
		return 112;
	}
	else if (pre == 21)
	{
		cout << "你躲在车后，遇到一名幸存者，对方也发现了你。\n";
		cout << "1. 主动搭话组队\n";
		cout << "2. 沉默悄悄溜走\n\n";
		op = GetChoice(1, 2);
		if (op == 1)
		{
			hasPartner = true;
			cout << "对方愿意和你结伴同行。\n";
			return 211;
		}
		return 212;
	}
	else if (pre == 22 || pre == 23)
	{
		cout << "路边传来微弱的求救声。\n";
		cout << "1. 前去营救\n";
		cout << "2. 假装没听见继续赶路\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 231;
		return 232;
	}
	else if (pre == 31)
	{
		cout << "荒野露宿一夜，饥渴感越来越强烈。\n";
		cout << "1. 继续留在荒野\n";
		cout << "2. 再次靠近城市探索\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 311;
		return 312;
	}
	else if (pre == 32)
	{
		cout << "折返城市遭遇丧尸追击，你拼死逃脱，体力大减。\n";
		hp -= 25;
		return 321;
	}
	ShowStatus();
	return 0;
}

// 场景4
int Scene4(int pre)
{
	ClearScreen();
	day = 4;
	cout << "【第4天】\n";
	int op;
	if (pre == 111 || pre == 112)
	{
		cout << "你发现一栋封闭居民楼，适合长期驻守。\n";
		cout << "1. 破门进入驻扎\n";
		cout << "2. 继续寻找大型幸存者基地\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 401;
		return 402;
	}
	else if (pre == 211)
	{
		cout << "你和队友同行，前方出现一间小木屋。\n";
		cout << "1. 和队友一起探查木屋\n";
		cout << "2. 绕开木屋不冒险\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 411;
		return 412;
	}
	else if (pre == 212)
	{
		cout << "你独自前行，内心充满不安。\n";
		cout << "1. 找房屋临时休息\n";
		cout << "2. 连夜赶路不停歇\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 421;
		return 422;
	}
	else if (pre == 231 || pre == 232 || pre == 321)
	{
		cout << "地上有别人遗留的物资包。\n";
		cout << "1. 捡起物资\n";
		cout << "2. 警惕陷阱放弃物资\n\n";
		op = GetChoice(1, 2);
		if (op == 1)
		{
			food += 2; water += 2;
			return 431;
		}
		return 432;
	}
	else if (pre == 311 || pre == 312)
	{
		cout << "远处看到炊烟，疑似人类营地。\n";
		cout << "1. 朝着炊烟前进\n";
		cout << "2. 不敢靠近继续独行\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 441;
		return 442;
	}
	ShowStatus();
	return 0;
}

// 场景5
int Scene5(int pre)
{
	ClearScreen();
	day = 5;
	cout << "【第5天】\n";
	int op;
	if (pre == 401)
	{
		cout << "你占领居民楼，物资渐渐不足。\n";
		cout << "1. 定期外出搜集物资\n";
		cout << "2. 固守楼内消耗现有资源\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 501;
		return 502;
	}
	else if (pre == 402)
	{
		cout << "你找到大型幸存者基地，门口有守卫。\n";
		cout << "1. 配合检查进入基地\n";
		cout << "2. 不信任基地，在外观望\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 511;
		return 512;
	}
	else if (pre == 411 || pre == 412)
	{
		cout << "队友提议分头搜集物资，效率更高。\n";
		cout << "1. 同意分头行动\n";
		cout << "2. 拒绝，坚持结伴\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 521;
		return 522;
	}
	else if (pre == 421 || pre == 422 || pre == 431 || pre == 432)
	{
		cout << "丧尸越来越多，活动范围被压缩。\n";
		cout << "1. 向城市中心突围\n";
		cout << "2. 撤出城市前往山区\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 531;
		return 532;
	}
	else if (pre == 441 || pre == 442)
	{
		cout << "小型幸存者团体邀请你加入。\n";
		cout << "1. 加入队伍共同求生\n";
		cout << "2. 婉拒继续独行\n\n";
		op = GetChoice(1, 2);
		if (op == 1)
		{
			hasPartner = true;
			return 541;
		}
		return 542;
	}
	ShowStatus();
	return 0;
}

// 场景6
int Scene6(int pre)
{
	ClearScreen();
	day = 6;
	cout << "【第6天】\n";
	int op;
	if (pre == 501 || pre == 502)
	{
		cout << "独居生活危险又枯燥。\n";
		cout << "1. 长期留守此地\n";
		cout << "2. 收拾行李寻找同伴\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 601;
		return 602;
	}
	else if (pre == 511)
	{
		cout << "你进入基地，可选择不同工作。\n";
		cout << "1. 成为基地守卫\n";
		cout << "2. 做普通劳工换物资\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 611;
		return 612;
	}
	else if (pre == 512)
	{
		cout << "在基地外徘徊，夜里遭遇丧尸袭击。\n";
		hp -= 35;
		cout << "你勉强击退敌人，伤势加重。\n";
		return 621;
	}
	else if (pre == 521 || pre == 522)
	{
		cout << "队友行为怪异，刻意回避你。\n";
		cout << "1. 主动询问心事\n";
		cout << "2. 保持距离暗中提防\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 631;
		else
		{
			trustPartner = false;
			return 632;
		}
	}
	else if (pre == 531 || pre == 532)
	{
		cout << "前方出现岔路。\n";
		cout << "1. 走大路（视野好）\n";
		cout << "2. 走林间小路（隐蔽）\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 641;
		return 642;
	}
	else if (pre == 541 || pre == 542)
	{
		cout << "小队物资紧张，内部出现矛盾。\n";
		cout << "1. 调和矛盾维持团队\n";
		cout << "2. 趁乱拿物资独自离开\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 651;
		return 652;
	}
	ShowStatus();
	return 0;
}

// 场景7
int Scene7(int pre)
{
	ClearScreen();
	day = 7;
	cout << "【第7天】\n";
	cout << "一路奔波，你来到命运的前置节点。\n";
	ShowStatus();
	return pre;
}

// 场景8 最终抉择
int Scene8(int pre)
{
	ClearScreen();
	day = 8;
	cout << "【最终抉择 - 第8天】\n";
	int op;
	if (pre >= 601 && pre <= 602)
	{
		cout << "你长期独居，做出最终选择：\n";
		cout << "1. 永久留守建筑\n";
		cout << "2. 再次出发寻找希望\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 1;
		return 2;
	}
	else if (pre >= 611 && pre <= 612)
	{
		cout << "基地高层独断专行，你选择：\n";
		cout << "1. 顺从规则安稳生活\n";
		cout << "2. 联合众人反抗不公\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 3;
		return 4;
	}
	else if (pre == 621)
	{
		cout << "你伤势严重，体力濒临极限：\n";
		cout << "1. 找山洞静待结局\n";
		cout << "2. 拼尽余力继续求生\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 5;
		return 6;
	}
	else if (pre >= 631 && pre <= 632)
	{
		cout << "你和队友走到分叉路口：\n";
		cout << "1. 完全信任，生死与共\n";
		cout << "2. 分道扬镳，各自求生\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 7;
		return 8;
	}
	else if (pre >= 641 && pre <= 642)
	{
		cout << "你看到远方一片全新净土：\n";
		cout << "1. 前往净土开始新生活\n";
		cout << "2. 原地停下不再前行\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 9;
		return 10;
	}
	else if (pre >= 651 && pre <= 652)
	{
		cout << "小型团队人心散尽：\n";
		cout << "1. 尝试重新集结众人\n";
		cout << "2. 接受现实孤身远行\n\n";
		op = GetChoice(1, 2);
		if (op == 1) return 11;
		return 12;
	}
	ShowStatus();
	return 0;
}

// 12种结局展示
void ShowEnd(int id)
{
	ClearScreen();
	cout << "==================== 最终结局 ====================\n\n";
	switch (id)
	{
	case 1:
		cout << "【结局1：孤岛隐士】\n";
		cout << "你永久留守建筑，与世隔绝，在寂静中度过余生。\n";
		break;
	case 2:
		cout << "【结局2：追光行者】\n";
		cout << "你再次出发，历经艰险找到和平聚集地，迎来新生。\n";
		break;
	case 3:
		cout << "【结局3：安稳囚徒】\n";
		cout << "你顺从基地规则，衣食无忧却失去自由，平淡一生。\n";
		break;
	case 4:
		cout << "【结局4：反抗先驱】\n";
		cout << "你带领众人推翻独裁，成为基地所有人敬重的英雄。\n";
		break;
	case 5:
		cout << "【结局5：安然落幕】\n";
		cout << "伤势过重，你在山洞中平静离去，旅途就此结束。\n";
		break;
	case 6:
		cout << "【结局6：绝境求生】\n";
		cout << "凭最后意志前行，意外被救援队救下，命运眷顾了你。\n";
		break;
	case 7:
		cout << "【结局7：生死之交】\n";
		cout << "你与队友彼此信任、并肩同行，走完末日之路。\n";
		break;
	case 8:
		cout << "【结局8：陌路独行】\n";
		cout << "你与队友分离，习惯孤独，独自走向远方。\n";
		break;
	case 9:
		cout << "【结局9：新生之地】\n";
		cout << "你抵达净土，远离丧尸与争斗，开启全新人生。\n";
		break;
	case 10:
		cout << "【结局10：止步于此】\n";
		cout << "你看到希望却选择停留，守着眼前一方天地。\n";
		break;
	case 11:
		cout << "【结局11：凝聚微光】\n";
		cout << "你重新收拢人群，小小队伍在黑暗中艰难前行。\n";
		break;
	case 12:
		cout << "【结局12：孑然一身】\n";
		cout << "团队解散，你孤身走向未知，依旧坚持走下去。\n";
		break;
	}
	cout<<"DSES原创";
	cout << "\n==================================================\n";
}