#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <conio.h>
#include <time.h>

void gotoxy(int x, int y){
	COORD pos;
	pos.X = x - 1;
	pos.Y = y - 1;
	SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), pos);
}

void moveA(){
	int ch;
	
	system("cls");
	
	ch = getch();
	
	printf("\n\n문자 출력: ");
	if (ch >= 32 && ch <= 126){
		printf("%c\n", ch);
	} else{
		printf("(출력 불가 문자)\n");
	}
	
	printf("정수 코드값: %d\n", ch);
	Sleep(2000);
}

void arrow_A(){
	int ch;
	int ext;
	int x = 10;
	int y = 10;
	int old_x;
	int old_y;
	int B_x = 10;
	int B_y = 10;
	int old_B_x;
	int old_B_y;
	gotoxy(x, y);//커서시작 위치 
	
	while(1){
		old_x = x;
		old_y = y;
	    old_B_x = B_x;
		old_B_y = B_y;
		
		ch = getch();
		
		if(ch == 0 || ch == 224){
			
			ext = getch();
			if(ext == 72 && y>1) y--;
			if(ext == 80 && y<25) y++;
			if(ext == 75 && x>1) x--;
			if(ext == 77 && x<80) x++;
		}else {
        	
        	if(ch == 119 && B_y>1) //w
        		B_y--;
			if(ch == 97 && B_x>1) //a
        		B_x--;
			if(ch == 115 && B_y<25) //s
        		B_y++;
			if(ch == 100 && B_x<80) //d
        		B_x++;
		}
		if(old_x != x || old_y != y){
            gotoxy(old_x, old_y);
            printf(" ");

            gotoxy(x, y);
            printf("A");
        }
		if(old_B_x != B_x || old_B_y != B_y){
            gotoxy(old_B_x, old_B_y);
            printf(" ");

            gotoxy(B_x, B_y);
            printf("B");
        }
	}
}

int main(){
	while(1){
		arrow_A();
	}
	
}