2048withPicture/ReadDirection.cpp at master · RedKold/2048withPicture · GitHub

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#include<iostream>
#include<conio.h>
#include"Map.h"
#include"Random.h"
#include"ReadDirection.h"
#include "Fun_Function.h"


char ReadDirection()
{
	int key = _getch();
	if(key==224)
		key = _getch();
	switch (key)
	{
	case 72://上
	case 'W':
	case 'w':
		return 'U'; break;
	case 80://下
	case 'S':
	case 's':
		return 'D'; break;
	case 75://左
	case 'A':
	case 'a':
		return 'L'; break;
	case 77://右
	case 'D':
	case 'd':
		return 'R'; break;
	case 'b':
		return 'B'; break;
	case 'B':
		return 'B'; break;
	case '27':
		return 0; break;
	default:
		return -1; break;
	}
}

void Move(void) //实现方向键导致的移动和合并同类项
{
	char key = ReadDirection();
	if (score - 1 >= 0)
		score--;
	int tempmove[4][4];//记录移动前的数组情况
	for (int i = 0; i < 4; i++)
		for (int j = 0; j < 4; j++)
			tempmove[i][j] = map[i][j];

	if (key == 'U')
	{
		for(int x=0;x<4;++x)//对每一列都要做这个操作
		{
			int y_temp[4] = {0};

			int i = 0;
			for (int j = 0; j < 4; j++)
			{
				if (map[j][x] != 0)
					y_temp[i++] = map[j][x];
			}


			for (int y = 0; y <3 ; ++y)//纵向操作 从上往下
			{
				if (y_temp[y]==y_temp[y+1])//合并项目
				{
					y_temp[y] *= 2;
					score += y_temp[y+1];
					y_temp[y+1] = 0;
				}
			}

			int k = 0;
			int temp2[4]={ 0 };
			for (int j = 0; j < 4; j++)
			{
				if (y_temp[j] != 0)
					temp2[k++] = y_temp[j];
			}

			for (int y = 0; y < 4; ++y)//抄回更新后的状态
			{
				map[y][x] = temp2[y];
			}
		}


	}

	else if (key == 'D')
	{
		for (int x = 0; x < 4; ++x)//对每一列都要做这个操作
		{
			int y_temp[4] = { 0 };

			int i = 3;
			for (int j = 3; j >=0; --j)//倒着存下来
			{
				if (map[j][x] != 0)
					y_temp[i--] = map[j][x];
			}


			for (int y = 3; y >0; --y)//纵向操作 从下往上
			{
				if (y_temp[y] == y_temp[y - 1])//合并项目
				{
					y_temp[y] *= 2;
					score += y_temp[y-1];
					y_temp[y-1] = 0;
				}
			}

			int k = 3;
			int tempD[4] = { 0 };
			for (int j = 3; j >=0 ; j--)//注意！要倒着检索
			{
				if (y_temp[j] != 0)
					tempD[k--] = y_temp[j];
			}

			for (int y = 0; y < 4; ++y)//抄回更新后的状态
			{
				map[y][x] = tempD[y];
			}

		}
	}

	else if (key == 'L')
	{
		for (int y = 0; y < 4; ++y)//对每一行都要做这个操作
		{
			int x_temp[4] = { 0 };

			int i = 0;
			for (int j = 0; j < 4; j++)
			{
				if (map[y][j] != 0)
					x_temp[i++] = map[y][j];
			}


			for (int x = 0; x < 4; ++x)//横向操作 自左向右
			{
				if (x_temp[x] == x_temp[x + 1])//合并项目
				{
					x_temp[x] *= 2;
					score += x_temp[x+1];
					x_temp[x+1] = 0;
				}
			}

			int tempL[4] = { 0 };
			int k = 0;
			for (int j = 0; j < 4; j++)
			{
				if (x_temp[j] != 0)
					tempL[k++] = x_temp[j];
			}

			for (int x = 0; x < 4; ++x)//抄回更新后的状态
			{
				map[y][x] = tempL[x];
			}
		}
	}

	else if (key == 'R')
	{
		for (int y = 0; y < 4; ++y)//对每一行都要做这个操作
		{
			int x_temp[4] = { 0 };

			int i = 3;
			for (int j = 3; j >= 0; --j)//倒着存下来
			{
				if (map[y][j] != 0)
					x_temp[i--] = map[y][j];
			}


			for (int x = 3; x >0; --x)////横向操作 自右向左
			{
				if (x_temp[x] == x_temp[x - 1])//合并项目
				{
					x_temp[x] *= 2;
					score += x_temp[x-1];
					x_temp[x-1] = 0;
				}
			}

			int tempR[4] = { 0 };
			int k = 3;
			for(int j = 3; j >= 0; j--)
			{
				if (x_temp[j] != 0)
					tempR[k--] = x_temp[j];
			}

			for (int x = 0; x < 4; ++x)//抄回更新后的状态
			{
				map[y][x] = tempR[x];
			}
		}
	}

	else if(key=='B')
		Bomb();

	else if(key==0)
		exit(0);

	bool move_or_not = ActualMove(tempmove, 4);
	if(move_or_not)
		BirthRandom();
}

void IfMove(char key) //实现方向键导致的移动和合并同类项
{


	if (key == 'U')
	{
		for (int x = 0; x < 4; ++x)//对每一列都要做这个操作
		{
			int y_temp[4] = { 0 };

			int i = 0;
			for (int j = 0; j < 4; j++)
			{
				if (map[j][x] != 0)
					y_temp[i++] = map[j][x];
			}


			for (int y = 0; y < 3; ++y)//纵向操作 从上往下
			{
				if (y_temp[y] == y_temp[y + 1])//合并项目
				{
					y_temp[y] *= 2;
					score += y_temp[y + 1];
					y_temp[y + 1] = 0;
				}
			}

			int k = 0;
			int temp2[4] = { 0 };
			for (int j = 0; j < 4; j++)
			{
				if (y_temp[j] != 0)
					temp2[k++] = y_temp[j];
			}

			for (int y = 0; y < 4; ++y)//抄回更新后的状态
			{
				map[y][x] = temp2[y];
			}
		}


	}

	else if (key == 'D')
	{
		for (int x = 0; x < 4; ++x)//对每一列都要做这个操作
		{
			int y_temp[4] = { 0 };

			int i = 3;
			for (int j = 3; j >= 0; --j)//倒着存下来
			{
				if (map[j][x] != 0)
					y_temp[i--] = map[j][x];
			}


			for (int y = 3; y > 0; --y)//纵向操作 从下往上
			{
				if (y_temp[y] == y_temp[y - 1])//合并项目
				{
					y_temp[y] *= 2;
					score += y_temp[y - 1];
					y_temp[y - 1] = 0;
				}
			}

			int k = 3;
			int tempD[4] = { 0 };
			for (int j = 3; j >= 0; j--)//注意！要倒着检索
			{
				if (y_temp[j] != 0)
					tempD[k--] = y_temp[j];
			}

			for (int y = 0; y < 4; ++y)//抄回更新后的状态
			{
				map[y][x] = tempD[y];
			}

		}
	}

	else if (key == 'L')
	{
		for (int y = 0; y < 4; ++y)//对每一行都要做这个操作
		{
			int x_temp[4] = { 0 };

			int i = 0;
			for (int j = 0; j < 4; j++)
			{
				if (map[y][j] != 0)
					x_temp[i++] = map[y][j];
			}


			for (int x = 0; x < 4; ++x)//横向操作 自左向右
			{
				if (x_temp[x] == x_temp[x + 1])//合并项目
				{
					x_temp[x] *= 2;
					score += x_temp[x + 1];
					x_temp[x + 1] = 0;
				}
			}

			int tempL[4] = { 0 };
			int k = 0;
			for (int j = 0; j < 4; j++)
			{
				if (x_temp[j] != 0)
					tempL[k++] = x_temp[j];
			}

			for (int x = 0; x < 4; ++x)//抄回更新后的状态
			{
				map[y][x] = tempL[x];
			}
		}
	}

	else if (key == 'R')
	{
		for (int y = 0; y < 4; ++y)//对每一行都要做这个操作
		{
			int x_temp[4] = { 0 };

			int i = 3;
			for (int j = 3; j >= 0; --j)//倒着存下来
			{
				if (map[y][j] != 0)
					x_temp[i--] = map[y][j];
			}


			for (int x = 3; x > 0; --x)////横向操作 自右向左
			{
				if (x_temp[x] == x_temp[x - 1])//合并项目
				{
					x_temp[x] *= 2;
					score += x_temp[x - 1];
					x_temp[x - 1] = 0;
				}
			}

			int tempR[4] = { 0 };
			int k = 3;
			for (int j = 3; j >= 0; j--)
			{
				if (x_temp[j] != 0)
					tempR[k--] = x_temp[j];
			}

			for (int x = 0; x < 4; ++x)//抄回更新后的状态
			{
				map[y][x] = tempR[x];
			}
		}
	}

}
//用于计算是否发生了真正的移动的辅助函数。

void BirthRandom() {
	int x = 0;
	int y = 0;
	int emptyCount = 0;
	// Count empty positions
	for (int i = 0; i < 4; ++i) {
		for (int j = 0; j < 4; ++j) {
			if (map[i][j] == 0) {
				emptyCount++;
			}
		}
	}

	// If there are empty positions, generate a new number
	if (emptyCount > 0) {
		int randomIndex = Random() % emptyCount + 1;
		int currentIndex = 0;
		int TwoOrFour = RandomBirth() % 8;
		for (int i = 0; i < 4; ++i) {
			for (int j = 0; j < 4; ++j) {
				if (map[i][j] == 0) {
					currentIndex++;

					if (currentIndex == randomIndex) {
						if (TwoOrFour == 0)
							map[i][j] = 4;
						else
							map[i][j] = 2;
					}
				}
			}
		}
	}
}

bool WinOrLose()
{
	//判断赢
	int N = 2048;
	for(int i=0;i<4;i++)
		for (int j = 0; j < 4; j++)
		{
			if (map[i][j] == N)
			{
				settextcolor(RED);
				settextstyle(50, 0, _T("黑体"));
				TCHAR win[] = _T("你赢了！");
				outtextxy(200, 300, win);
				settextstyle(20, 0, _T("黑体"));
				TCHAR gameagain[] = _T("要再来一局吗？按任意键继续");
				outtextxy(20, 400, gameagain);
				_getch();
				return true;
			}
		}

	//判断输
	int tempmove[4][4];//记录移动前的数组情况
	for (int i = 0; i < 4; i++)
		for (int j = 0; j < 4; j++)
			tempmove[i][j] = map[i][j];

	int emptyCount = 0;
	for (int i = 0; i < 4; ++i) {
		for (int j = 0; j < 4; ++j) {
			if (map[i][j] == 0) {
				emptyCount++;
			}
		}
	}

	if (emptyCount == 0)
	{
		bool could_U = 0;//UP是不是有效移动
		IfMove('U');
		could_U = ActualMove(tempmove, 4);
		reset_map;
		bool could_D = 0;
		IfMove('D');//Down是不是有效移动
		could_D = ActualMove(tempmove, 4);
		reset_map;
		bool could_L = 0;
		IfMove('L');//Left是不是有效移动
		could_L = ActualMove(tempmove, 4);
		reset_map;
		bool could_R = 0;
		IfMove('R');//Right是不是有效移动
		could_R = ActualMove(tempmove, 4);
		reset_map;
		if (!(could_D || could_L || could_R || could_U))
		{
			settextcolor(RED);
			settextstyle(50, 0, _T("黑体"));
			TCHAR lose[] = _T("你输了！");
			outtextxy(200, 300, lose);
			settextstyle(20, 0, _T("黑体"));
			TCHAR gameagain[] = _T("要再来一局吗？按任意键继续");
			outtextxy(20, 400, gameagain);
			_getch();
			return true;
		}
	}

	return false;
}

bool ActualMove(int a[][4],int line)
{
	bool flag = false;
	for (int i = 0; i < line; i++)
		for (int j = 0; j < 4; j++)
		{
			if (a[i][j] != map[i][j])
			{
				flag = true;
				break;
			}
		}
	return flag;
}
//检查map是否发生了变化