遊走地圖

RPG遊戲在地圖上如何判斷什麼是障礙物以及什麼是道路，就是用二維陣列中的數字來決定。以下的小範例，可以使用方向鍵來移動角色@@，遇到牆壁則不會穿過。

#include <iostream>
#include <conio.h>
#include <windows.h>
using namespace std;

const int UP=72;
const int LEFT=75;
const int RIGHT=77;
const int DOWN=80;

//2*x是因為想要讓文字與文字間格是全型的字體
void gotoxy(int x, int y)
{
  SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),
    (COORD) {2 * x, y });
}

int main(){

  int key1,key2,x=1,y=1;

  int map[8][8] = {
  { 1, 1, 1, 1, 1, 1, 1, 1 },
  { 1, 0, 0, 0, 1, 0, 0, 1 },
  { 1, 0, 0, 0, 0, 0, 0, 1 },
  { 1, 0, 0, 0, 0, 1, 1, 1 },
  { 1, 1, 0, 1, 0, 0, 0, 1 },
  { 1, 0, 0, 1, 0, 0, 0, 1 },
  { 1, 0, 0, 1, 0, 0, 1, 1 },
  { 1, 1, 1, 1, 1, 1, 1, 1 }
};

    for (int i= 0; i < 8;i++){
      for (int j= 0; j < 8;j++){
        if (map[i][j] == 0) {
          cout << "  ";
        } else if (map[i][j] == 1) {
          cout << "gg";
        }
      }
      cout << endl;
    }

    gotoxy(x,y);
    cout<<"@@";

    while (1) {

      if (kbhit()) {
        int key1 = getch();
        if(key1 == 224){
            int key2=getch();

            switch (key2) {

              case UP:
                  if(map[y-1][x]==1)break;
                  gotoxy(x,y);
                  cout<<"  ";
                  gotoxy(x,--y);
                  cout<<"@@";
                  break;

              case DOWN:
                  if(map[y+1][x]==1)break;
                  gotoxy(x,y);
                  cout<<"  ";
                  gotoxy(x,++y);
                  cout<<"@@";
                  break;

              case LEFT:
                  if(map[y][x-1]==1)break;
                  gotoxy(x,y);
                  cout<<"  ";
                  gotoxy(--x,y);
                  cout<<"@@";
                  break;

              case RIGHT:
                  if(map[y][x+1]==1)break;
                  gotoxy(x,y);
                  cout<<"  ";
                  gotoxy(++x,y);
                  cout<<"@@";
                  break;

            }
        }
    }
}
}