C语言实现俄罗斯方块源代码

Init.h

#include"Head.h"

static void ShapeStrToBit(unsigned char *rockShapeStr, unsigned short& rockShapeBit);
static void ReadRcok();

void InitGame()
{
 //把全局游戏游戏版初始化，边界初始化为1
 for (int i = 0; i < xROCK_SQUARE_NUM + 2; i++)
 {
  game_board[0][i] = 1; //上边界
  game_board[yROCK_SQUARE_NUM + 1][i] = 1; //下边界
 }
 for (int i = 0; i < yROCK_SQUARE_NUM + 2; i++)
 {
  game_board[i][0] = 1 ; //左边界
  game_board[i][xROCK_SQUARE_NUM + 1] = 1; //右边界
 }
 //读取俄罗斯方块 
 ReadRcok();

}

//从文件中读取方块的形状存储到rockArray中
void ReadRcok()
{
 FILE* fp = fopen("RockShape.ini","r");
 if (NULL == fp)
 {
  printf("打开文件失败n");
  return;
 }
 unsigned char readBuf[1024]; //fp读取到字符串readbuf中
 unsigned short rockShapeBit = 0;//存放方块形状，占16比特位
 unsigned char rockShapeStr[16];//存放方块字符串
 int ShapeStrIdx = 0;
 int rockNum = 0;//统计方块的个数以及存放方块数组RockArray的下标
 int rocknext = 0;//方块数组中下一个形状
 int rockShapeStart = 0;//同一类型的形状
 while (true)
 {
  size_t readSize = fread(readBuf, 1, 1024, fp);
  if (readSize == 0)
   break;
  //处理readbuf
  for (size_t idx = 0; idx < readSize; ++idx)
  {
   //将字符存放到rockShapeStr中
   while (ShapeStrIdx < 16 && idx < readSize)
   {
    if (readBuf[idx] == '@' || readBuf[idx] == '#')
    {
     rockShapeStr[ShapeStrIdx] = (unsigned char)readBuf[idx];
     ++ShapeStrIdx;
    }
    ++idx; //可能idx == readSize了 
    if (readBuf[idx] == '*')//修改上一次方块的next值
    {
     idx += 5;
     RockArray[--rockNum].nextRockIndex = rockShapeStart;
     rockNum++;
     rockShapeStart = rockNum;
     rocknext = rockShapeStart ;
    }
   }
   //可能没有填满
   if (ShapeStrIdx < 16)
   {
    break;
   }
   else //填满shapestr
   {
    ShapeStrIdx = 0;//置0
    //将rockShapeStr 转为rockShapeBit
    ShapeStrToBit(rockShapeStr, rockShapeBit);
    rocknext++;
    RockArray[rockNum].rockShapeBits = rockShapeBit;
    RockArray[rockNum].nextRockIndex = rocknext;
    rockNum++;
   }
  }
 }
 fclose(fp);
}
//将从文件中读取的字符串(长度默认为16)转换成 unsigned short
void ShapeStrToBit(unsigned char *rockShapeStr, unsigned short& rockShapeBit)
{
 rockShapeBit = 0;
 for (size_t idx = 0; idx < 16; ++idx)
 {
  if (rockShapeStr[idx] == '@') //1
  {
   rockShapeBit |= (1 << (16 - idx - 1));
  }
  // #为0 不需要处理
 }
}