c++迷宫打怪游戏

最近写了一段迷宫打怪游戏，我想着要有生命值、分数、name(名字)，干脆用了类，实际用不用都一样...不要自己改代码,因为里面的x/y坐标是反着的，你们搞不清楚，一改就废

代码(dev-c++运行通过，无报错无警告)：

#include<iostream>
#include<cstdio>
#include<time.h>
#include<windows.h>
#include<iomanip>
#include<string>
#include<conio.h> 
using namespace std;

class game
{
	public:
		void setcoin(int c,string n,int r)
		{
			coin = c;
			name = n;
			ren = r;
		}
		void increasecoin()
		{
			coin += 5;
		}
		void increaseren()
		{
			ren -= 5;
		}
		void print()
		{
			cout<<endl<<"coin = "<<coin;
			cout<<endl<<"name = "<<name<<endl;
			cout<<endl<<"生命 = "<<ren;
		}
	private:
		int coin;
		string name;
		int ren; 
};

int main()
{
	start:
		system("color F0");
		/*****地图*****/ 
		char a[1000][1000] = {
			   	"########################################",
				"#*                     #               #",
				"## $######### ################# ###### #",
				"# #         # #               # ##   # #",
				"# # # #### ## # ##@# #### ##### ## # # #",
				"# # # #       #  # #    #        # # # #",
				"# # #  #### ###### ############### #   #",
				"# # ##    #      # #               # # #",
				"# #  #### ######## ################# # #",
				"# ##    #     #$ #%#       #####   # # #",
			    "#   #####$###  #   #       #     ### # #",
			    "###     #        # #       # ##### # # #",
			    "#   ######################## #     # # #",
			    "# # #                        # ## #  ###",
			    "# ### #### ####### ########### #### ## #",
			    "#     #    #                      #   +#",
			    "########################################",//大怪4 小怪3 
		};
		
		/*****初始化*****/
		cout<<"走迷宫游戏(+是出口,$是金币,%是大怪兽,@是小怪兽,打掉2个怪兽且生命大于80才能通关)"<<endl;
		cout<<"请输入你的昵称"<<endl;
		string na;
		cin>>na;
		game player;
		player.setcoin(0,na,100);
		int jb=0;
		int rr=100;
		/*****打印map(a)*****/ 
		for (int i=0;i<=16;i++)
		{
			puts(a[i]);
		}
		
		/*****移动*****/
		char ch;
		int x=1,y=1;
		while(1){
			ch=_getch();
			if(ch=='a'){
				if(a[x][y-1]!='#'){
					a[x][y]=' ';
					y--;
					a[x][y]='*';
				}
			}
			if(ch=='s'){
				if(a[x+1][y]!='#'){
					a[x][y]=' ';
					x++;
					a[x][y]='*';
				}
			}
			if(ch=='d'){
				if(a[x][y+1]!='#'){
					a[x][y]=' ';
					y++;
					a[x][y]='*';
				}
			}
			if(ch=='w'){
				if(a[x-1][y]!='#'){
					a[x][y]=' ';
					x--;
					a[x][y]='*';
				}
			}
			system("cls");
			for(int i=0;i<=16;i++)
				puts(a[i]);
			if (x==15&&y==37)
			{
				break;
			}
			if (x==2&&y==3)
			{
				cout<<endl<<"金币+5";
				player.increasecoin();
				jb+=5; 
				
			}
			if (x==9&&y==15)
			{
				cout<<endl<<"金币+5";
				player.increasecoin();
				jb+=5; 
			}
			if (x==10&&y==9)
			{
				cout<<endl<<"金币+5";
				player.increasecoin();
				jb+=5;
			}
			if (x==9&&y==18)
			{
				a[10][16] = '#';
				cout<<endl<<"你的战斗力是"<<jb/3<<",大怪兽战斗力是4,";
				if (jb/3>4){
					cout<<"你赢了, 但你的生命值-5";
					player.increaseren();
					rr -= 5;
					if (x==9&&y==18)
					{
						cout<<" ";
					}
				}
				if (jb/3<4){
					cout<<"你输了,但怪兽被打死,你的生命值-15";
					player.increaseren();
					player.increaseren();
					player.increaseren();
					rr-=15;
				}
			}
			if (x==4&&y==18)
			{
				cout<<endl<<"你的战斗力是"<<jb/4<<",小怪兽战斗力是3,";
				if (jb/4>3){
					cout<<"你赢了, 但你的生命值-5";
					player.increaseren();
					rr -= 5;
				}
				if (jb/4<3){
					cout<<"你输了,但怪兽被打死,你的生命值-15";
					player.increaseren();
					player.increaseren();
					player.increaseren();
					rr-=15;
				}
				if (jb/4==3)
				{
					cout<<"生命值不变";
				}
			}
		}
		if (rr>=80)
		{
			system("cls");
			cout<<"你赢了！";
			player.print();	
		}
		if (rr<80)
		{
			system("cls");
			cout<<"你输了！";
			player.print();	
			cout<<endl<<"按下a再来一局";
			int a =_getch();
			if (a==97)
			{
				goto start;
			}
		}
		return 0;
}