俄罗斯方块

#include <iostream>
#include <windows.h>
#include <vector>
#include <mmsystem.h>


#pragma comment(lib, "winmm.lib")
using namespace std;


#define GameW 10
#define GameH 20
const int CtrlLeft = GameW*2+4 + 3;


struct Point {
    Point(){}
    Point(int x, int y) {_x = x, _y = y;}
    int _x, _y;
};


HANDLE g_hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
HANDLE g_hInput  = GetStdHandle(STD_INPUT_HANDLE);


Point g_ptCursor(0,0);
BOOL isChecking = FALSE;
BOOL g_bGameOver = FALSE;
int g_nGameBack[GameH][GameW], Case;

int nowKeyInfo = -1;
int g_nDiff = 1;
int g_nLife = 2;
int g_nScore = 0;


void SetCursor(COORD cd) {
    SetConsoleCursorPosition(g_hOutput, cd);
}
void SetCursor(int x, int y){
    COORD cd = {x, y};
    SetCursor(cd);
}
void SetBlockCursor(int x, int y){
    COORD cd = {2*x + 2, y + 1};
    SetCursor(cd);
}


void SetBack(int x, int y, BOOL bk) {
    SetBlockCursor(x, y);
    if (bk) 
        printf("%s", "■");
    else
        printf("　");
}


bool Out(int x, int y) {
    return x < 0 || y < 0 || x >= GameW || y >= GameH;