C++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;

/*

一、const int
在定义变量的时候必须初始化，否则报错。

二、const int *
声明该指针变量指向的是常量，即该指针变量的内容可以改变，但是该内容指向的内容不可改变！

因为delete只是告诉系统，现在p所指向的这块内存已还给自由存储区，不再被使用，可以被其他程序改写。而此时p依旧指向这块不可使用的内存，故需要对p进行清零。

三、int *const
声明该指针变量为常变量，即指针变量里面的内容不可改变，但是该内容指向的内容可以改变！

四、const int * cosnt
声明该指针变量里面的内容不可改变，同时该内容指向的内容亦不可改变。

五、const int &
在引用前面加上const，代表该引用为常引用，即被引用的对象不可改变。若是在形参中使用，则不可达到在函数里面修改变量值的目的。

*/

struct Point {
Point(){}
Point(int x, int y) {_x = x, _y = y;}
//有参数的构造函数
int _x, _y;
};

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

//GetStdHandle 返回的句柄可供需要在控制台中进行读取或写入的应用程序使用。

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;

//模块1设置指定控制台屏幕缓冲区中的光标位置。

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;
}

struct xBlock {
public:
int len;
int nowRotateID;
BOOL mask[4][4][4];
static vector <xBlock> List;

xBlock() { len = 0; }
xBlock(int l, char *str) {
int i, j, k;
len = l;
memset(mask, FALSE, sizeof(mask));
for(i = 0; i < l; i++) {
for(j = 0; j < l; j++) {
mask[0][i][j] = str[i*l + j] - '0';
}
}
for(k = 1; k < 4; k++) {
for(i = 0; i < len; i++) {
for(j = 0; j < len; j++) {
mask[k][i][j] = mask[k-1][j][len-1-i];
}
}
}
nowRotateID = rand() % 4;
}

void rotate() {
nowRotateID ++;
if (nowRotateID >= 4)
nowRotateID = 0;
}

BOOL getUnit(int x, int y, int roID) {
if (roID == -1) {
roID = nowRotateID;
}
return mask[roID][y][x];
}
};

vector <xBlock> xBlock::List;

class Block {
public:
int x, y;
int ID;
xBlock bk;

void reset(xBlock *pbk) {
bk = *pbk;

x = 4, y = 0;
ID = ++ Case;

if(collide(0,0)) {
lifeDown();
}
draw();

*pbk = xBlock::List[rand() % xBlock::List.size()];
}

void lifeDown() {
int i, j;
for(i = 0; i < GameH; i++) {
for(j = 0; j < GameW; j++) {
SetBack(j, i, TRUE);
Sleep(10);
}
}
if(g_nLife) {
g_nLife --;
for(i = g_nLife; i < 6; i++) {
SetCursor(CtrlLeft + i, 15);
printf("%c", ' ');
}
for(i = GameH-1; i >= 0; i--) {
for(j = GameW-1; j >= 0; j--) {
SetBack(j, i, FALSE);
Sleep(10);
g_nGameBack[i][j] = 0;
}
}
}else {
g_bGameOver = TRUE;
}
}

void erase() {
int i, j;
for(i = 0; i < bk.len; i++) {
for(j = 0; j < bk.len; j++) {
if (bk.getUnit(j, i, -1)) {
if(!Out(j+x, i+y) && g_nGameBack[i+y][j+x]) {
SetBack(j+x, i+y, FALSE);
g_nGameBack[i+y][j+x] = 0;
}
}
}
}
}
void draw() {
int i, j;
for(i = 0; i < bk.len; i++) {
for(j = 0; j < bk.len; j++) {
if (bk.getUnit(j, i, -1)) {
if(!Out(j+x, i+y) && !g_nGameBack[i+y][j+x]) {
SetBack(j+x, i+y, TRUE);
g_nGameBack[i+y][j+x] = ID;
}
}
}
}
}
void draw(int x, int y) {
int i, j;
for(i = 0; i < 4; i++) {
for(j = 0; j < 4; j++) {
SetCursor(x + 2*j, y + i);
if (bk.getUnit(j, i, -1)) {
printf("%s", "■");
}else
printf("　");
}
}
}
bool collide(int dx, int dy, int roID = -1) {
int i, j;
for(i = 0; i < bk.len; i++) {
for(j = 0; j < bk.len; j++) {
if (bk.getUnit(j, i, roID)) {
Point ptPos(j + x + dx, i + y + dy);
if(Out(ptPos._x, ptPos._y)
|| g_nGameBack[ptPos._y][ptPos._x] && ID != g_nGameBack[ptPos._y][ptPos._x]) {
return TRUE;
}
}
}
}
return FALSE;
}

void rotate(int nTimes = 1) {
int nextro = (bk.nowRotateID + nTimes) % 4;
if(collide(0, 0, nextro)) {
return ;
}
Beep(12000, 50);
erase();
bk.nowRotateID = nextro;
draw();
}

BOOL changepos(int dx, int dy) {
if(collide(dx, dy)) {
return FALSE;
}
erase();
x += dx;
y += dy;
draw();
return TRUE;
}
};

void GameInit() {
CONSOLE_CURSOR_INFO cursor_info;
cursor_info.bVisible = FALSE;
cursor_info.dwSize = 100;
SetConsoleCursorInfo(g_hOutput,&cursor_info);
xBlock::List.push_back(xBlock(3, "010111000"));
//倒立T
xBlock::List.push_back(xBlock(3, "110110000"));
//方块
xBlock::List.push_back(xBlock(3, "111001000"));
//正立T
xBlock::List.push_back(xBlock(3, "111100000"));
//侧立I
xBlock::List.push_back(xBlock(3, "110011000"));
//z
xBlock::List.push_back(xBlock(3, "011110000"));
//倒立T
xBlock::List.push_back(xBlock(4, "1000100010001000"));
//正立I
}

void DrawFrame(int x, int y, int nWidth, int nHeight) {
int i;
for(i = 0; i < nWidth; i++) {
SetCursor(x + 2*i + 2, y);
printf("%s", "一");
SetCursor(x + 2*i + 2, y + nHeight+1);
printf("%s", "┄");
}
for(i = 0; i < nHeight; i++) {
SetCursor(x, y + i + 1);
printf("%s", "┆");
SetCursor(x + nWidth*2+2, y + i + 1);
printf("%s", "┆");
}
SetCursor(x, y);
printf("%s", "┌");
SetCursor(x, y + nHeight+1);
printf("%s", "└");
SetCursor(x + nWidth*2+2, y);
printf("%s", "┐");
SetCursor(x + nWidth*2+2, y + nHeight+1);
printf("%s", "┘");
}

void MissionInit() {
memset(g_nGameBack, FALSE, sizeof(g_nGameBack));
Case = 1;
int i;
DrawFrame(0, 0, GameW, GameH);
DrawFrame(GameW*2+4, 0, 4, GameH);
SetCursor(CtrlLeft, 2);
printf("Next");

SetCursor(CtrlLeft, 8);
printf("Speed");
for(i = 0; i < g_nDiff; i++) {
SetCursor(CtrlLeft + i, 9);
printf("%c", 1);
}

SetCursor(CtrlLeft, 11);
printf("Score");
SetCursor(CtrlLeft, 12);
printf("%d", g_nScore);

SetCursor(CtrlLeft, 14);
printf("Life");
for(i = 0; i < g_nLife; i++) {
SetCursor(CtrlLeft + i, 15);
printf("%c", 3);
}

SetCursor(CtrlLeft-1, 19);
SetCursor(CtrlLeft-1, 20);
}

void Check() {
isChecking = TRUE;
int i, j, k;
vector <int> line;
for(i = 0; i < GameH; i++) {
for(j = 0; j < GameW; j++) {
if(!g_nGameBack[i][j])
break;
}
if(j == GameW) {
line.push_back(i);
}
}
if(line.size()) {
int nCount = 7;
while(nCount --) {
for(i = 0; i < line.size(); i++) {
for(j = 0; j < GameW; j++) {
SetBack(j, line[i], nCount&1);
}
}
Sleep(70);
}
for(i = 0; i < line.size(); i++) {
for(j = 0; j < GameW; j++) {
g_nGameBack[line[i]][j] = 0;
}
}

for(i = 0; i < GameW; i++) {
int next = GameH-1;
for(j = GameH-1; j >= 0; j--) {
for(k = next; k >= 0; k--) {
if(g_nGameBack[k][i])
break;
}
next = k - 1;
BOOL is = (k >= 0);
SetBack(i, j, is);
g_nGameBack[j][i] = is;
}
}

g_nScore += 2*line.size()-1;
SetCursor(CtrlLeft, 12);
printf("%d", g_nScore);

if( g_nScore >= g_nDiff * g_nDiff * 10) {
if(g_nDiff <= 6)
g_nDiff ++;
}
if( g_nScore >= 50 * (g_nLife+1)) {
if(g_nLife <= 6)
g_nLife ++;
}
}

isChecking = FALSE;
}
int main() {
Block* obj = new Block();
Block* buf = new Block();

BOOL bCreateNew = FALSE;
int nTimer = GetTickCount();
int LastKeyDownTime = GetTickCount();

GameInit();
MissionInit();

buf->bk = xBlock::List[rand() % xBlock::List.size()];
while(1) {
if(!bCreateNew) {
bCreateNew = TRUE;
obj->reset(&buf->bk);
if(g_bGameOver)
break;
buf->draw(CtrlLeft - 1, 4);
}
if (GetTickCount() - nTimer >= 1000 / g_nDiff) {
nTimer = GetTickCount();
if (!obj->collide(0, 1))
obj->changepos(0, 1);
else {
Check();
bCreateNew = FALSE;
}
}
if (GetTickCount() - LastKeyDownTime >= 100) {
if(FALSE == isChecking) {
LastKeyDownTime = GetTickCount();
if (GetAsyncKeyState(VK_UP)) {
obj->rotate();
}
if (GetAsyncKeyState(VK_LEFT)) {
obj->changepos(-1, 0);
}
if (GetAsyncKeyState(VK_RIGHT)) {
obj->changepos(1, 0);
}
if (GetAsyncKeyState(VK_DOWN)) {
if( FALSE == obj->changepos(0, 2) )
obj->changepos(0, 1);
}
}
}
}
SetCursor(8, 10);
printf("Game Over");

SetCursor(0, GameH+3);
printf("按ESC键退出游戏");

while(1) {
if (GetAsyncKeyState(VK_ESCAPE))
break;
}
return 0;
}