#include <stdio.h>
#include <string.h>

#define SIZE 32
#define WIDTH 3
#define HEIGHT 3
#define MAX 5

typedef struct player {
  char name[SIZE];
  int x;
  int y;
} PLAYER;

void move(PLAYER *p, int dx, int dy){
  printf("その方向には逃げることができません\n");
}

void approach(PLAYER *p_you, PLAYER *p_hunter){
  int dx, dy, dxa, dya;
  dx = p_you->x - p_hunter->x;
  dy = p_you->y - p_hunter->y;

  if ( dx != 0 || dy != 0 ){
    dxa = dx;
    dya = dy;
    if ( dx < 0 ){
      dxa *= -1;
    }
    if ( dy < 0 ){
      dya *= -1;
    }

    if ( dxa > dya ){
      if ( dx > 0 ){
        (p_hunter->x)++;
      }
      else{
        (p_hunter->x)--;
      }
    }
    else {
      if ( dy > 0 ){
        (p_hunter->y)++;
      }
      else{
        (p_hunter->y)--;
      }
    }
  }
}

void print_position(PLAYER p){
  printf(" %s : (%d,%d) \n", p.name, p.x, p.y);
}

void print_map(PLAYER you, PLAYER hunter){
  int x, y, i, k;

  print_position(you);
  print_position(hunter);
  for ( y = HEIGHT-1; y >= 0; y-- ){
    if ( y < HEIGHT-1 ){
        for ( k = 0; k < 2; k++ ){
          for ( i = 0; i < WIDTH; i++ ){
            printf(" |    ");
          }
          printf("\n");
        }
    }
    for ( x = 0; x < WIDTH; x ++ ){
      if ( x > 0 ){
        printf("---");
      }
      if ( you.x == x && you.y == y && hunter.x == x && hunter.y == y ){
        printf("(X)");
      }
      else if ( you.x == x && you.y == y ){
        printf("[Y]");
      }
      else if ( hunter.x == x && hunter.y == y ){
        printf("[H]");
      }
      else{
        printf(" + ");
      }
    }
    printf("\n");
  }
  printf("\n");
}

int main(void){
  int i, n, dx, dy;
  PLAYER you, hunter;

  printf("あなたの名前を入力してください：");
  scanf("%s", you.name);
  you.x = you.y = 0;

  strcpy(hunter.name, "hunter");
  hunter.x = WIDTH-1;
  hunter.y = HEIGHT-1;

  print_map(you, hunter);

  for ( i = 1; i <= MAX; i++ ){
    do{
      printf("[%d 回目]", i);
      printf("\nどの方向に逃げますか？（1:上，2:右，3:下，4:左）\n> ");
      scanf("%d", &n);
      dx = dy = 0;
      if ( n == 1 ){
        dy = 1;
      }
      else if ( n == 2 ){
        dx = 1;
      }
      else if ( n == 3 ){
        dy = -1;
      }
      else if ( n == 4 ){
        dx = -1;;
      }
    } while( n < 1 || n > 4 );

    move(&you, dx, dy);
    approach(&you, &hunter);

    print_map(you, hunter);

    if ( you.x == hunter.x && you.y == hunter.y ){
      printf("%s は捕まってしまいました... GAME OVER\n", you.name);
      return 0;
    }
  }

  printf("%s は無事に逃げ切りました． CLEAR!\n", you.name);

  return 0;
}