gamefield.cpp

俄罗斯方块 采用MFC和GDI+编写的,自己感觉写得不是很好,不过看上去还行

#include "stdafx.h"
#include "GameField.h"
#include <cstdlib>
using namespace std;


int GameField::bitEmpty = 0x0;
int GameField::bitFull =0xffff;
int GameField::Height = HEIGHT ;
int GameField::Width = WIDTH;
int GameField::SquareSize = SIZE;
HDC* GameField::hdc;
DOCINFO * GameField::info;	
int GameField::arrBitGameField[HEIGHT];

Square GameField::arrGameField[WIDTH][HEIGHT]; 

GameField::GameField(HDC &Hdc,DOCINFO &docinfo)
{
	GameField::hdc = & Hdc;
	GameField::info = & docinfo;
	/*Width  = 16;
	Height = 30;*/
	/*SquareSize  = 10;*/
	//this->arrGameField = new Square[Width,Height];
	/*this->arrGameField = new Square*[Width];
	for(int i=0;i<Width;i++)
	{
		this->arrGameField[i] = new Square[Height];
	}
	this->arrBitGameField = new int[Height];*/
}

GameField::~GameField(void)
{
	/*if( this->arrBitGameField != NULL)
		delete [] this->arrBitGameField;
	for(int i=0;i<Width;i++)
	{
		delete[] this->arrGameField[i];
	}*/
}

bool GameField::IsEmpty(const int &x, const int &y)
{
	if((y < 0 || y >= Height) || ( x < 0 || x >= Width ))
		return false;
	else if((arrBitGameField[y] & (1 << x ) ) != 0)
	{
		return false;
	}
	return true;
}

int GameField::CheckLines()
{
	int CheckLines_result = 0;
	int y = Height -1;
	while(y >= 0)
	{
		if(arrBitGameField[y] == bitEmpty)
			y = 0;
		if(arrBitGameField[y] == bitFull )
		{
			CheckLines_result++;
			for(int index = y; index >= 0; index--)
			{
				if(index > 0)
				{
					arrBitGameField[index] = arrBitGameField[index-1];
					for(int x =0;x < Width;x++)
					{
						arrGameField[x][index] = arrGameField[x][index -1];
						if( arrGameField[x][index].IsNull() )
						{
							arrGameField[x][index]._Location.Y += GameField::SquareSize;
						}
					}
				}
				else
				{
					arrBitGameField[index] = bitEmpty;
					for(int x=0;x<Width;x++)
					{
						arrGameField[x][index].MakeNull();
					}
				}
			}
		}
		else
		{
			y--;
		}
	}
	return CheckLines_result;
}

void GameField::StopSquare(const Square &square, const int &x, const int &y)
{
	arrBitGameField[y] = arrBitGameField[y] | (1 << x);
	arrGameField[x][y] = square;
}
void GameField::Redraw()
{
	for(int y = Height -1;y >= 0;y--)//TODO y = height -1;
	{
		if(arrBitGameField[y] != bitEmpty)
			for(int x= Width -1;x>=0;x--)
			{
				if( arrGameField[x][y].IsNull())
					arrGameField[x][y].Show(*hdc,*info);
			}
	}
}
void GameField::Reset()
{
	for(int i=0;i< Height; i++)
	{
		arrBitGameField[i] = bitEmpty;
		for(int j =0;j<Width;j++)
		{
			arrGameField[j][i].MakeNull();
		}
	}
}
void GameField::ReDrawAll()
{
	for(int i =0;i< Width;i++)
	{
		for(int j=0;j<Height;j++)
		{
			if(! arrGameField[i][j].IsNull())
			{
				arrGameField[i][j].Show(*hdc,*info);
			}
		}
	}
}
void GameField::Clear()
{
	for(int i=0;i<Width;i++)
	{
		for(int j=0;j<Height;j++)
		{
			arrGameField[i][j].MakeNull();
		}
	}
}
int Random(int const& start,int const& end)
{
	int temp = end - start +1;
	srand(unsigned (time(NULL)));
	int randNumber = rand()%temp;
	randNumber += start;
	return randNumber;
}