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#include "Chess.h"
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#include <conio.h>
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//修正png透明背景无法显示（网上当的）
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void putimagePNG(int x, int y, IMAGE* picture) //x为载入图片的X坐标，y为Y坐标
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{
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// 变量初始化
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DWORD* dst = GetImageBuffer(); // GetImageBuffer()函数，用于获取绘图设备的显存指针，EASYX自带
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DWORD* draw = GetImageBuffer();
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DWORD* src = GetImageBuffer(picture); //获取picture的显存指针
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int picture_width = picture->getwidth(); //获取picture的宽度，EASYX自带
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int picture_height = picture->getheight(); //获取picture的高度，EASYX自带
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int graphWidth = getwidth(); //获取绘图区的宽度，EASYX自带
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int graphHeight = getheight(); //获取绘图区的高度，EASYX自带
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int dstX = 0; //在显存里像素的角标
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// 实现透明贴图 公式： Cp=αp*FP+(1-αp)*BP ， 贝叶斯定理来进行点颜色的概率计算
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for (int iy = 0; iy < picture_height; iy++)
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{
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for (int ix = 0; ix < picture_width; ix++)
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{
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int srcX = ix + iy * picture_width; //在显存里像素的角标
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int sa = ((src[srcX] & 0xff000000) >> 24); //0xAArrggbb;AA是透明度
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int sr = ((src[srcX] & 0xff0000) >> 16); //获取RGB里的R
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int sg = ((src[srcX] & 0xff00) >> 8); //G
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int sb = src[srcX] & 0xff; //B
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if (ix >= 0 && ix <= graphWidth && iy >= 0 && iy <= graphHeight && dstX <= graphWidth * graphHeight)
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{
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dstX = (ix + x) + (iy + y) * graphWidth; //在显存里像素的角标
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int dr = ((dst[dstX] & 0xff0000) >> 16);
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int dg = ((dst[dstX] & 0xff00) >> 8);
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int db = dst[dstX] & 0xff;
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draw[dstX] = ((sr * sa / 255 + dr * (255 - sa) / 255) << 16) //公式： Cp=αp*FP+(1-αp)*BP ； αp=sa/255 , FP=sr , BP=dr
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| ((sg * sa / 255 + dg * (255 - sa) / 255) << 8) //αp=sa/255 , FP=sg , BP=dg
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| (sb * sa / 255 + db * (255 - sa) / 255); //αp=sa/255 , FP=sb , BP=db
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}
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}
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}
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}
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Chess::Chess(int gradeSize, int marginX, int marginY, double chessSize)
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{
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this->gradeSize = gradeSize;
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this->margin_x = marginX;
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this->margin_y = marginY;
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this->chessSize = chessSize;
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playerFlag = CHESS_BLACK;
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for (int i = 0; i < gradeSize; ++i)
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{
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vector<int>row;
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for (int j = 0; j < gradeSize; ++j)
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{
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row.push_back(0);
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}
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chessMap.push_back(row);
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}
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}
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void Chess::init()
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{
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//显示棋盘
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loadimage(0, "graphics/map.png");
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//显示棋子
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loadimage(&chessBlackImg, "graphics/black.png", chessSize-2, chessSize-2, true);
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loadimage(&chessWhiteImg, "graphics/white.png", chessSize-2, chessSize-2, true);
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//清零棋盘
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for (int i = 0; i < gradeSize; ++i)
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for (int j = 0; j < gradeSize; ++j)
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chessMap[i][j] = 0;
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playerFlag = true;
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}
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bool Chess::clickBoard(int x, int y, ChessPos* pos)
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{
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int col = (x - margin_x) / chessSize;
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int row = (y - margin_y) / chessSize;
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int leftTopPosX = margin_x + chessSize * col;
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int leftTopPosY = margin_y + chessSize * row;
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int offset = chessSize * 0.4;
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int len;
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bool ret = false;
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do {
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//左上角
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len = sqrt((x - leftTopPosX) * (x - leftTopPosX) + (y - leftTopPosY) * (y - leftTopPosY));
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if (len < offset)
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{
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pos->row = row;
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pos->col = col;
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if (chessMap[pos->row][pos->col] == 0)
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ret = true;
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break;
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}
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//右上角
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int x2 = leftTopPosX + chessSize;
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int y2 = leftTopPosY;
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len = sqrt((x - x2) * (x - x2) + (y - y2) * (y - y2));
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if (len < offset)
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{
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pos->row = row;
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pos->col = col+1;
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if (chessMap[pos->row][pos->col] == 0)
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ret = true;
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break;
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}
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//左下角
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int x3 = leftTopPosX;
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int y3 = leftTopPosY + chessSize;
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len = sqrt((x - x3) * (x - x3) + (y - y3) * (y - y3));
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if (len < offset)
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{
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pos->row = row + 1;
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pos->col = col;
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if (chessMap[pos->row][pos->col] == 0)
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ret = true;
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break;
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}
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//右下角
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int x4 = leftTopPosX + chessSize;
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int y4 = leftTopPosY + chessSize;
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len = sqrt((x - x4) * (x - x4) + (y - y4) * (y - y4));
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if (len < offset)
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{
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pos->row = row + 1;
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pos->col = col + 1;
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if (chessMap[pos->row][pos->col] == 0)
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ret = true;
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break;
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}
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} while (0);
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return ret;
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}
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void Chess::ChessMove(ChessPos* pos, chess_kind_t kind)
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{
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int x = margin_x + chessSize * pos->col - 0.5 * chessSize;
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int y = margin_y + chessSize * pos->row - 0.5 * chessSize;
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if (kind == CHESS_WHITE)
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putimagePNG(x, y, &chessWhiteImg);
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else
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putimagePNG(x, y, &chessBlackImg);
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updateGameMap(pos);
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}
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int Chess::getGradeSize()
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{
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return gradeSize;
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}
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bool Chess::checkWin()
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{
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// 横竖斜四种大情况，每种情况都根据当前落子往后遍历5个棋子，有一种符合就算赢
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// 水平方向
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int row = lastPos.row;
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int col = lastPos.col;
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//落子水平方向
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for (int i = 0; i < 5; i++)
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{
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if (col - i >= 0 &&
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col - i + 4 < gradeSize &&
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chessMap[row][col - i] == chessMap[row][col - i + 1] &&
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chessMap[row][col - i] == chessMap[row][col - i + 2] &&
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chessMap[row][col - i] == chessMap[row][col - i + 3] &&
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chessMap[row][col - i] == chessMap[row][col - i + 4])
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{
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setlinecolor(RED);
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line(margin_x + (col - i) * chessSize, margin_y + (row) * chessSize, margin_x + (col - i + 4) * chessSize, margin_y + (row) * chessSize);
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return true;
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}
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}
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// 竖直方向(上下延伸4个)
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for (int i = 0; i < 5; i++)
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{
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if (row - i >= 0 &&
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row - i + 4 < gradeSize &&
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chessMap[row - i][col] == chessMap[row - i + 1][col] &&
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chessMap[row - i][col] == chessMap[row - i + 2][col] &&
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chessMap[row - i][col] == chessMap[row - i + 3][col] &&
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chessMap[row - i][col] == chessMap[row - i + 4][col])
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{
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setlinecolor(RED);
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line(margin_x + (col) * chessSize, margin_y + (row - i)*chessSize, margin_x + (col) * chessSize, margin_y + (row - i + 4)*chessSize);
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return true;
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}
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}
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// “/"方向
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for (int i = 0; i < 5; i++)
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{
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if (row + i < gradeSize &&
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row + i - 4 >= 0 &&
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col - i >= 0 &&
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col - i + 4 < gradeSize &&
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// 第[row+i]行，第[col-i]的棋子，与右上方连续4个棋子都相同
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chessMap[row + i][col - i] == chessMap[row + i - 1][col - i + 1] &&
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chessMap[row + i][col - i] == chessMap[row + i - 2][col - i + 2] &&
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chessMap[row + i][col - i] == chessMap[row + i - 3][col - i + 3] &&
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chessMap[row + i][col - i] == chessMap[row + i - 4][col - i + 4])
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{
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setlinecolor(RED);
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line(margin_x + (col - i)*chessSize, margin_y + (row + i) * chessSize, margin_x + (col - i + 4)*chessSize, margin_y + (row + i - 4) * chessSize);
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return true;
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}
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}
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// “\“ 方向
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for (int i = 0; i < 5; i++)
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{
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// 第[row+i]行，第[col-i]的棋子，与右下方连续4个棋子都相同
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if (row - i >= 0 &&
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row - i + 4 < gradeSize &&
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col - i >= 0 &&
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col - i + 4 < gradeSize &&
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chessMap[row - i][col - i] == chessMap[row - i + 1][col - i + 1] &&
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chessMap[row - i][col - i] == chessMap[row - i + 2][col - i + 2] &&
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chessMap[row - i][col - i] == chessMap[row - i + 3][col - i + 3] &&
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chessMap[row - i][col - i] == chessMap[row - i + 4][col - i + 4])
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{
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setlinecolor(RED);
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line(margin_x + (col - i) * chessSize, margin_y + (row - i) * chessSize, margin_x + (col - i + 4) * chessSize, margin_y + (row - i + 4) * chessSize);
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return true;
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}
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}
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return false;
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}
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bool Chess::checkOver()
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{
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if (checkWin())
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{
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Sleep(3000);
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//赢棋
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if (!playerFlag)
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{
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loadimage(0, "graphics/win.jpg",400,400,true);
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}
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//失败
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else
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{
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loadimage(0, "graphics/fail.png", 400, 400, true);
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}
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Sleep(5000);
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return true;
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}
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return false;
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}
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int Chess::getChessData(ChessPos* pos)
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{
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return chessMap[pos->row][pos->col];
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}
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int Chess::getChessData(int row, int col)
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{
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return chessMap[row][col];
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}
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void Chess::updateGameMap(ChessPos* pos)
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{
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lastPos = *pos;
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chessMap[pos->row][pos->col] = playerFlag ? CHESS_BLACK : CHESS_WHITE;
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playerFlag = !playerFlag;//换方
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} |
