12346

.#include <stdio.h>
#define true 1
#define false 0
typedef struct
{
   signed char x, y;
}Point;
const Point dir[8] =
{
    {0, -1},   // Left
    {1, -1},   // Left_Down
    {1, 0},   // Down
    {1, 1},  // Right_Down
    {0, 1},  // Right
    {-1, 1}, // Right_Up
    {-1, 0},  // Up
    {-1, -1}   // Left_Up
};
enum Direction{
Left,
Left_Down,
Down,
Right_Down,
Right,
Right_Up,
Up,
Left_Up
};
enum ItemType
{
Empty,
EnemyBullet,
Enemy,
BuddyBullet,
Wall
};
struct{
int type;
int info;
}map[7][7];
//�ж�����Ƿ�Խ��
unsigned char within(int x, int y)
{
    return (x >= 0 && y >= 0
        && x < 7 && y < 7);
}
//�ӵ��Ƿ��ܱ��ѷ��ӵ�����
int WetherBulletCancel(int tankX,int tankY,int direc)
{
int buddyX,buddyY;
switch(direc){
case Up:
buddyX = tankX + dir[Left_Up].x;
buddyY = tankY + dir[Left_Up].y;
if(within(buddyX,buddyY) && map[buddyX][buddyY].type == BuddyBullet && map[buddyX][buddyY].info == Right)
return true;
buddyX = tankX + dir[Right_Up].x;
buddyY = tankY + dir[Right_Up].y;
if(within(buddyX,buddyY) && map[buddyX][buddyY].type == BuddyBullet && map[buddyX][buddyY].info == Left)
return true;
break;
case Down:
buddyX = tankX + dir[Left_Down].x;
buddyY = tankY + dir[Left_Down].y;
if(within(buddyX,buddyY) && map[buddyX][buddyY].type == BuddyBullet && map[buddyX][buddyY].info == Right)
return true;
buddyX = tankX + dir[Right_Down].x;
buddyY = tankY + dir[Right_Down].y;
if(within(buddyX,buddyY) && map[buddyX][buddyY].type == BuddyBullet && map[buddyX][buddyY].info == Left)
return true;
break;
case Left:
buddyX = tankX + dir[Left_Up].x;
buddyY = tankY + dir[Left_Up].y;
if(within(buddyX,buddyY) && map[buddyX][buddyY].type == BuddyBullet && map[buddyX][buddyY].info == Down)
return true;
buddyX = tankX + dir[Left_Down].x;
buddyY = tankY + dir[Left_Down].y;
if(within(buddyX,buddyY) && map[buddyX][buddyY].type == BuddyBullet && map[buddyX][buddyY].info == Up)
return true;
break;
case Right:
buddyX = tankX + dir[Right_Up].x;
buddyY = tankY + dir[Right_Up].y;
if(within(buddyX,buddyY) && map[buddyX][buddyY].type == BuddyBullet && map[buddyX][buddyY].info == Down)
return true;
buddyX = tankX + dir[Right_Down].x;
buddyY = tankY + dir[Right_Down].y;
if(within(buddyX,buddyY) && map[buddyX][buddyY].type == BuddyBullet && map[buddyX][buddyY].info == Up)
return true;
break;
default:
return false;
}
return false;
}
//�жϸ÷����Ƿ���뷢���ӵ�
int WetherNeedBullet(int tankX, int tankY, int direc)
{
//�÷����һ��
int x = tankX+dir[direc].x;
int y = tankY+dir[direc].y;
if(within(x,y) == false)
return false;
//��һ��Ϊǽ��ֱ�ӷ��� false
if(map[x][y].type == Wall)
return false;
//��һ��Ϊ�з��ӵ���ֱ�ӷ���  true
if(map[x][y].type == EnemyBullet)
return true;
//��һ��Ϊ�з�Tank��ֱ�ӷ���  true
if(map[x][y].type == Enemy)
return true;
//�÷���ڶ���
x = x+dir[direc].x;
y = y+dir[direc].y;
if(within(x,y) == false)
return false;
//�ڶ���Ϊǽ��ֱ�ӷ��� false
if(map[x][y].type == Wall)
return false;
//�ڶ���Ϊ�з��ӵ����ж���û���ѷ��ӵ��ܹ��������ӵ�
if(map[x][y].type == EnemyBullet){
if(WetherBulletCancel(tankX,tankY,direc))
return false;
else 
return true;
}
//�ڶ���Ϊ�з�Tank��ֱ�ӷ���  true
if(map[x][y].type == Enemy)
return true;
//ʲô��û��  false
return false;
}

int main(){
int tankX=0,tankY=0;
int indexX,indexY;
map[3][1].type=EnemyBullet;
map[3][1].info=Right;
/*map[tankX+dir[Left_Down].x][tankY+dir[Left_Down].y].type=BuddyBullet;
map[tankX+dir[Left_Down].x][tankY+dir[Left_Down].y].info=Right;*/
map[tankX+dir[Left_Down].x][tankY+dir[Left_Down].y].type=BuddyBullet;
map[tankX+dir[Left_Down].x][tankY+dir[Left_Down].y].info=Up;
printf("%d\n",WetherNeedBullet(tankX,tankY,Left));
getchar();
return 0;
}