// Five.c // SDL2 五子棋// gcc -mwindows -o Five Five.c FiveData.c FiveData.h -lSDL2 -lSDL2main -lSDL2_image -lSDL2_ttf //#define _DEBUG_ #include <stdio.h>#include <string.h>#include <SDL2/SDL.h>#include <SDL2/SDL_image.h>#include <SDL2/SDL_ttf.h>#include "FiveData.c" // 資源文件char szBackGroundFile[] = "Resource/BackGround.jpg";  // 棋盤背景圖文件char szBlackFile[]   = "Resource/BlackPiece.jpg";  // 黑棋子圖文件（背景色：白色）char szWhiteFile[]   = "Resource/WhitePiece.jpg";  // 白棋子圖文件（背景色：白色）char szFontFile[]    = "Resource/DroidSansFallback.ttf"; // 字體文件// 字符串常量char szTitle[]  = "五子棋";char szBlack[]  = "黑方";char szWhite[]  = "白方";char szGameTips[] = "第 %d 手，輪到 %s 落子";char szGameOver[] = "%s 取得本局勝利，請按鍵繼續"; _Bool OnKeyUp(int x, int y, int nSpacing);void DrawBoard(SDL_Renderer *pRenderer, int nSpacing, SDL_Color *pColor);void DrawPieces(SDL_Renderer *pRenderer, int nSpacing, SDL_Texture *pBlackTexture, SDL_Texture *pWhiteTexture);void PrintString(SDL_Renderer *pRenderer, int nSpacing, char *szString, TTF_Font *pFont, SDL_Color *pColor);void FillCircle(SDL_Renderer *pRenderer, int x, int y, int r, SDL_Color *pColor);SDL_Texture *GetImageTexture(SDL_Renderer *pRenderer, char *szFile, _Bool bTransparent, SDL_Color *pBackGroundColor);SDL_Texture *GetStringTexture(SDL_Renderer *pRenderer, TTF_Font *pFont, char *szString, SDL_Color *pColor); #undef mainint main(int argc, char **argv){  int nWindowWidth, nWindowHeight;  // 屏幕尺寸  int nSpacing;            // 棋盤線距  SDL_Window  *pWindow    = NULL; // 主窗口  SDL_Renderer *pRenderer   = NULL; // 主窗口渲染器  SDL_Texture *pBackTexture = NULL; // 棋盤背景圖紋理  SDL_Texture *pBlackTexture = NULL; // 黑棋子圖紋理  SDL_Texture *pWhiteTexture = NULL; // 白棋子圖紋理  TTF_Font   *pFont     = NULL; // 提示文字字體  SDL_Event  event;         // 事件  _Bool bRun = 1;           // 持續等待事件控制循環標識  char szString[256];   // 初始化  if(SDL_Init(SDL_INIT_EVERYTHING)==-1 || IMG_Init(IMG_INIT_JPG)==-1 || TTF_Init()==-1)  {#ifdef _DEBUG_    fprintf(stderr, "%s", SDL_GetError());#endif    return 1;  }  // 創建主窗口及其渲染器  if(SDL_CreateWindowAndRenderer(0, 0, SDL_WINDOW_FULLSCREEN, &pWindow, &pRenderer)==-1)  {#ifdef _DEBUG_    fprintf(stderr, "%s", SDL_GetError());#endif    goto label_error;  }  SDL_SetWindowTitle(pWindow, szTitle);  SDL_GetWindowSize(pWindow, &nWindowWidth, &nWindowHeight);  nSpacing = SDL_min(nWindowWidth, nWindowHeight)/(MAX_LINES+2);   // 加載圖片文件  if(NULL==(pBackTexture = GetImageTexture(pRenderer, szBackGroundFile, 0, NULL))      || NULL==(pBlackTexture = GetImageTexture(pRenderer, szBlackFile, 1, NULL))      || NULL==(pWhiteTexture = GetImageTexture(pRenderer, szWhiteFile, 1, NULL)))  {#ifdef _DEBUG_    fprintf(stderr, "%s", SDL_GetError());#endif    goto label_error;  }  // 加載字體文件  if(NULL == (pFont = TTF_OpenFont(szFontFile, 20))) // 這個 20 是字體大小  {#ifdef _DEBUG_    fprintf(stderr, "%s", SDL_GetError());#endif    goto label_error;  }   // 重置棋局數據，等待事件  Five_ResetData();  while(bRun && SDL_WaitEvent(&event))  {    switch(event.type)    {    case SDL_FINGERUP :  // 觸摸彈起      if(g_iWho != NONE)      {        if(OnKeyUp(event.tfinger.x*nWindowWidth, event.tfinger.y*nWindowHeight, nSpacing) && Five_isFive())          g_iWho = NONE;      }      else        Five_ResetData();      // 這里沒有 break; 往下墜落重繪窗口     case SDL_WINDOWEVENT :   // 有窗口消息需重繪窗口      SDL_RenderClear(pRenderer);      SDL_RenderCopyEx(pRenderer, pBackTexture, NULL, NULL, 0, NULL, SDL_FLIP_NONE);      DrawBoard(pRenderer, nSpacing, NULL);      DrawPieces(pRenderer, nSpacing, pBlackTexture, pWhiteTexture);      if(g_iWho == NONE)        sprintf(szString, szGameOver, g_nHands%2==1 ? szBlack : szWhite);      else        sprintf(szString, szGameTips, g_nHands+1, g_iWho==BLACK ? szBlack : szWhite);      PrintString(pRenderer, nSpacing, szString, pFont, NULL);      SDL_RenderPresent(pRenderer);      break;     case SDL_QUIT :      bRun = 0;      break;     default :      break;    }  } label_error:// 清理  if(pBackTexture != NULL) SDL_DestroyTexture(pBackTexture);  if(pBlackTexture != NULL) SDL_DestroyTexture(pBlackTexture);  if(pWhiteTexture != NULL) SDL_DestroyTexture(pWhiteTexture);  if(pFont != NULL)     TTF_CloseFont(pFont);  TTF_Quit();  IMG_Quit();  SDL_Quit();  return 0;} // 響應落子按鍵// 參數：(x，y) = 被點擊的窗口坐標，nSpacing = 棋盤線距_Bool OnKeyUp(int x, int y, int nSpacing){  // 計算落點棋盤坐標  int m = (x - 0.5*nSpacing)/nSpacing;  int n = (y - 0.5*nSpacing)/nSpacing;  // 處理有效落點  if(m>=0 && m<MAX_LINES && n>=0 && n<MAX_LINES && g_iBoard[m][n]==NONE)  {    Five_AddPiece(m, n, g_iWho);    return 1;  }  return 0;} // 畫棋盤// 參數：pRenderer = 渲染器，nSpacing = 棋盤線距，pColor = 顏色（默認黑色）void DrawBoard(SDL_Renderer *pRenderer, int nSpacing, SDL_Color *pColor){  SDL_Color c;  int r, x, y, z;   if(pColor == NULL)    c.r = c.g = c.b = 0;  else    c = *pColor;   // 棋盤線  SDL_SetRenderDrawColor(pRenderer, c.r, c.g, c.b, SDL_ALPHA_OPAQUE);  for(int i = 1; i <= MAX_LINES; i++)  {    SDL_RenderDrawLine(pRenderer, nSpacing, i*nSpacing, MAX_LINES*nSpacing, i*nSpacing);    SDL_RenderDrawLine(pRenderer, i*nSpacing, nSpacing, i*nSpacing, MAX_LINES*nSpacing);  }   // 星位  r = nSpacing*0.2;        // 星半徑  x = nSpacing*4;         // 第四線  y = nSpacing*(MAX_LINES+1)/2;  // 中線  z = nSpacing*(MAX_LINES-3);   // 倒數第四線  FillCircle(pRenderer, x, x, r, &c);  FillCircle(pRenderer, y, x, r, &c);  FillCircle(pRenderer, z, x, r, &c);  FillCircle(pRenderer, x, y, r, &c);  FillCircle(pRenderer, y, y, r, &c);  FillCircle(pRenderer, z, y, r, &c);  FillCircle(pRenderer, x, z, r, &c);  FillCircle(pRenderer, y, z, r, &c);  FillCircle(pRenderer, z, z, r, &c);} // 畫棋子// 參數：pRenderer = 渲染器，nSpacing = 棋盤線距，pBlackTexture = 黑子紋理，pWhiteTexture = 白子紋理void DrawPieces(SDL_Renderer *pRenderer, int nSpacing, SDL_Texture *pBlackTexture, SDL_Texture *pWhiteTexture){  int r = 0.4*nSpacing; // 棋子半徑  SDL_Rect rt = {0, 0, 2*r, 2*r};   if(g_nHands <= 0)    return;   for(int i=0; i<MAX_LINES; i++)  {    for(int j=0; j<MAX_LINES; j++)    {      rt.x = (i+1)*nSpacing - r;      rt.y = (j+1)*nSpacing - r;      if(g_iBoard[i][j] == BLACK)        SDL_RenderCopyEx(pRenderer, pBlackTexture, NULL, &rt, 0, NULL, SDL_FLIP_NONE);      else if(g_iBoard[i][j] == WHITE)        SDL_RenderCopyEx(pRenderer, pWhiteTexture, NULL, &rt, 0, NULL, SDL_FLIP_NONE);    }  }} // 提示文字// 參數：szString = 文字內容，pFont = 字體，pColor = 文字顏色（默認黑色）void PrintString(SDL_Renderer *pRenderer, int nSpacing, char *szString, TTF_Font *pFont, SDL_Color *pColor){  SDL_Texture *pTextTexture;  SDL_Rect rt;   rt.x = nSpacing;  rt.y = nSpacing*(MAX_LINES+1);  rt.w = nSpacing*strlen(szString)/4;   // 這個 4 和字體大小有關  rt.h = nSpacing;   if((pTextTexture = GetStringTexture(pRenderer, pFont, szString, pColor)) != NULL)  {    SDL_RenderCopyEx(pRenderer, pTextTexture, NULL, &rt, 0, NULL, SDL_FLIP_NONE);    SDL_DestroyTexture(pTextTexture);  }} // 取得圖片文件紋理// 參數：szFile = 圖片文件名，bTransparent = 是否透明處理，pBackGroundColor = 背景色（默認白色）// 返回值：紋理指針SDL_Texture *GetImageTexture(SDL_Renderer *pRenderer, char *szFile, _Bool bTransparent, SDL_Color *pBackGroundColor){  SDL_Texture *pTexture;  SDL_Surface *pSurface;  int r, g, b;   if((pSurface = IMG_Load(szFile)) == NULL)    return NULL;  if(bTransparent)  {    if(pBackGroundColor == NULL)    {      r = g = b = 255;    }    else    {      r = pBackGroundColor->r;      g = pBackGroundColor->g;      b = pBackGroundColor->b;    }    SDL_SetColorKey(pSurface, 1, SDL_MapRGB(pSurface->format, r, g, b));  }  pTexture = SDL_CreateTextureFromSurface(pRenderer, pSurface);   SDL_FreeSurface(pSurface);  return pTexture;} // 取得字符串紋理// 參數：szString = 字符串內容，pFont = 字體，pColor = 文字顏色（默認黑色）// 返回值：紋理指針SDL_Texture *GetStringTexture(SDL_Renderer *pRenderer, TTF_Font *pFont, char *szString, SDL_Color *pColor){  SDL_Texture *pTexture;  SDL_Surface *pSurface;  SDL_Color c;   if(pColor == NULL)    c.r = c.g = c.b = 0;  else    c = *pColor;   if((pSurface = TTF_RenderUTF8_Blended(pFont, szString, c)) == NULL)    return NULL;  pTexture = SDL_CreateTextureFromSurface(pRenderer, pSurface);   SDL_FreeSurface(pSurface);  return pTexture;} // 畫圓（SDL2 沒有畫圓的函數，先用矩形框代替吧）// 參數：pRenderer = 渲染器，(x，y) = 圓心坐標，r = 半徑， pCOlor = 填充色void FillCircle(SDL_Renderer *pRenderer, int x, int y, int r, SDL_Color *pColor){  SDL_Rect rt = {x-r, y-r, 2*r, 2*r};   SDL_SetRenderDrawColor(pRenderer, pColor->r, pColor->g, pColor->b, SDL_ALPHA_OPAQUE);  SDL_RenderFillRect(pRenderer, &rt);}

// FiveData.c // 五子棋：數據處理模塊 #include "FiveData.h"  // 公共變量int g_nHands;      // 總手數int g_nLastCrossing;  // 100*x+y，（x，y）為最后一手的坐標enum en_COLOR g_iWho;  // 輪到哪方落子：0 不可落子狀態，1 黑方，2 白方int g_iBoard[MAX_LINES][MAX_LINES];  // 棋盤交叉點數據：0 無子，1 黑子，2 白子  // 判斷最后一手棋是否形成五子連珠// 返回值：1 = 形成五子連珠， 0 = 未形成五子連珠_Bool Five_isFive(void){  int i, j, nCount, x, y;   if(g_nLastCrossing < 0)    return 0;  x = g_nLastCrossing/100;  y = g_nLastCrossing%100;   // 橫線計數  nCount = 1;  i = x - 1;   // 左  while(i>=0 && g_iBoard[x][y]==g_iBoard[i][y])  {    nCount++;    i--;  }  i = x + 1;   // 右  while(i<MAX_LINES && g_iBoard[x][y]==g_iBoard[i][y])  {    nCount++;    i++;  }  if(nCount >= 5)    return 1;   // 豎線計數  nCount = 1;  j = y - 1;   // 上  while(j>=0 && g_iBoard[x][y]==g_iBoard[x][j])  {    nCount++;    j--;  }  j = y + 1;   // 下  while(j<MAX_LINES && g_iBoard[x][y]==g_iBoard[x][j])  {    nCount++;    j++;  }  if(nCount >= 5)    return 1;   // 左斜線計數  nCount = 1;  i = x - 1;   // 左上  j = y - 1;  while(i>=0 && j>=0 && g_iBoard[x][y]==g_iBoard[i][j])  {    nCount++;    i--;    j--;  }  i = x + 1;   // 右下  j = y + 1;  while(i<MAX_LINES && j<MAX_LINES && g_iBoard[x][y]==g_iBoard[i][j])  {    nCount++;    i++;    j++;  }  if(nCount >= 5)    return 1;   // 右斜線計數  nCount = 1;  i = x + 1;   // 右上  j = y - 1;  while(i<MAX_LINES && j>=0 && g_iBoard[x][y]==g_iBoard[i][j])  {    nCount++;    i++;    j--;  }  i = x - 1;   // 左下  j = y + 1;  while(i>=0 && j<MAX_LINES && g_iBoard[x][y]==g_iBoard[i][j])  {    nCount++;    i--;    j++;  }  if(nCount >= 5)    return 1;   return 0;} // 重置對局數據void Five_ResetData(void){  for(int i=0; i<MAX_LINES; i++)    for(int j=0; j<MAX_LINES; j++)      g_iBoard[i][j] = NONE;  g_nHands = 0;  g_nLastCrossing = -1;  g_iWho = BLACK;} // 記錄一個落子數據// 參數：x，y = 棋子坐標，c = 棋子顏色void Five_AddPiece(int x, int y, enum en_COLOR c){  g_iBoard[x][y] = c;  g_nHands++;  g_nLastCrossing = 100*x + y;  g_iWho = (g_iWho == BLACK ? WHITE : BLACK);}

// FiveData.h // 五子棋：數據處理模塊對外接口 #ifndef _FIVE_DATA_H#define _FIVE_DATA_H  enum en_COLOR  // 棋子顏色{  NONE = 0,    // 無子  BLACK,     // 黑子  WHITE      // 白子}; // 棋局#define MAX_LINES   15    // 棋盤線數extern int g_nHands;      // 總手數extern int g_nLastCrossing;  // 100*x+y，（x，y）為最后一手的坐標extern enum en_COLOR g_iWho;  // 輪到哪方落子：0 不可落子狀態，1 黑方，2 白方extern int g_iBoard[MAX_LINES][MAX_LINES]; // 棋盤交叉點數據：0 無子，1 黑子，2 白子  // 判斷最后一手棋是否形成五子連珠// 返回值：1 = 形成五子連珠， 0 = 未形成五子連珠extern _Bool Five_isFive(void); // 重置對局數據extern void Five_ResetData(void); // 記錄一個落子數據// 參數：x，y = 棋子坐標，c = 棋子顏色extern void Five_AddPiece(int x, int y, enum en_COLOR c);  #endif