#include<iostream>
using namespace std;
const int RIGHT=0;
const int DOWN=1;
const int LEFT=2;
const int UP=3;
const int DIRECTION=4;//
const int MOVE_X[DIRECTION]={1, 0, -1, 0};
const int MOVE_Y[DIRECTION]={0, 1, 0, -1};
const int MAX_X=5;
const int MAX_Y=5;
struct Mover
{
int currentX;// x
int currentY;// y
int currentDirection;//
Mover(int startingX, int startingY)
{//
currentX=startingX;
currentY=startingY;
currentDirection=RIGHT;
}
};
void showBoard(int aBoard[][MAX_X]);//
void setEmptyBoard(int aBoard[][MAX_X]);// 기
void changeDirection(Mover * aMover);// 꾼
int setStartingX();// : x
int setStartingY();// : y
void move(Mover * aMover);//
bool isEnd(int endCount);//
bool needToChangeDirection(Mover * aMover, int aBoard[][MAX_X]);//
void checkAtBoard(int aBoard[][MAX_X], Mover * aMover, int * aNumber);// 결과
int main()
{
Mover mover(setStartingX(), setStartingY());//
int board[MAX_X][MAX_Y];//
int countMove=0;//
setEmptyBoard(board);// 기
checkAtBoard(board, &mover, &countMove);//
do
{
if(needToChangeDirection(&mover, board))
changeDirection(&mover);// 꿔
move(&mover);//
checkAtBoard(board, &mover, &countMove);//
}while(isEnd(countMove));//
showBoard(board);//결과
return 1;
}
void showBoard(int aBoard[][MAX_X])
{
for(int i=0;i<MAX_Y;i++)
{
for(int j=0;j<MAX_X;j++)
cout<<aBoard[i][j]<<"\t";
cout<<"\n";
}
}
void setEmptyBoard(int aBoard[][MAX_X])
{
for(int i=0;i<MAX_Y;i++)
{
for(int j=0;j<MAX_X;j++)
aBoard[i][j]=0;
}
}
void changeDirection(Mover * aMover)
{
if(aMover->currentDirection+1>UP)
aMover->currentDirection=RIGHT;
else
aMover->currentDirection+=1;
}
bool isEnd(int endCount)
{
if(endCount<MAX_X*MAX_Y)
return true;
else
return false;
}
int setStartingX()
{
int tempX;
cout<<" x?"<<endl;
cin>>tempX;
return tempX;
}
int setStartingY()
{
int tempY;
cout<<" y?"<<endl;
cin>>tempY;
return tempY;
}
void move(Mover * aMover)
{
aMover->currentX=aMover->currentX+MOVE_X[aMover->currentDirection];
aMover->currentY=aMover->currentY+MOVE_Y[aMover->currentDirection];
}
bool needToChangeDirection(Mover * aMover, int aBoard[][MAX_X])
{
if(aMover->currentX+MOVE_X[aMover->currentDirection]>=MAX_X)
return true;//X 갈 경(MAX)
if(aMover->currentY+MOVE_Y[aMover->currentDirection]>=MAX_Y)
return true;//Y 갈 경(MAX)
if(aMover->currentX+MOVE_X[aMover->currentDirection]<0)
return true;//X 갈 경(0)
if(aMover->currentY+MOVE_Y[aMover->currentDirection]<0)
return true;//Y 갈 경(0)
if(aBoard[aMover->currentY+MOVE_Y[aMover->currentDirection]][aMover->currentX+MOVE_X[aMover->currentDirection]]!=0)
return true;// 경
else
return false;
}
void checkAtBoard(int aBoard[][MAX_X], Mover * aMover, int * aNumber)
{
aBoard[aMover->currentY][aMover->currentX]=(*aNumber)+1;
(*aNumber)++;
}