#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <unistd.h>

#define High 25
#define Width 50

//ȫֱ 
int position_x, position_y;
int canvas[High][Width] = {0};

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

void startup()
{
	position_x = High / 2;
	position_y = Width / 2;
	canvas[position_x][position_y] = 1; 
}

void show ()
{
	gotoxy(0,0);
	int i, j;
	for(i = 0; i < High; i++)
	{
		for(j = 0; j < Width; j++)
		{
			if(canvas[i][j] == 0)
				printf(" ");
			else if(canvas[i][j] == 1)
				printf("*"); 
			else if(canvas[i][j] == 2)
				printf("|");
		}
		printf("\n");
	}
}

void updateWithoutInput()
{
	int i, j;
	for(i = 0; i < High; i++)
	{
		for(j = 0; j <Width; j++)
		{
			if(canvas[i][j] == 2)
			{
				canvas[i][j] = 0;
				if(i > 0)
					canvas[i - 1][j] = 2;
			}
		}
	}
}

void updateWithInput()
{
	char input;
	if((kbhit))
	{
		input = getch();
		if(inout == 'a')
		{
			canvas[position_x][position_y] = 0;
			position_y--;
			canvas[position_x][position_y] = 1;
		}
		
		else if(input == 'd')
		{
			canvas[position_x][position_y] = 0;
			position_y++;
			canvas[position_x][position_y] = 1;
		}
		
		else if(input == 'w')
		{
			canvas[position_x][position_y] = 0;
			position_x++;
			canvas[position_x][position_y] = 1;
		}
		
		else if(input = 's')
		{
			canvas[position_x][position_y] = 0;
			position_x--;
			canvas[position_x][posotion_y] = 1;
		}
		
		else if(input == ' ')
		{
			canvas[position_x - 1][position_y] = 2;
		}
	}
}

int main ()
{
	startup();
	while(1)
	{
		show();
		updateWithoutInput();
		updateWithInput();
	}
	return 0;
}