Objective-C 实现2048算法类

// .h文件@class DataModel; @interface Algorithm : NSObject @property (nonatomic,assign) int addScore;     // 加分 - (void)caculateTop:(DataModel *)model;      // 上滑规则- (void)caculateBottom:(DataModel *)model;     // 下滑规则- (void)caculateLeft:(DataModel *)model;      // 左滑规则- (void)caculateRight:(DataModel *)model;     // 右滑规则 - (BOOL)randNewOne:(DataModel *)data; - (int)getAddScore; @end  // .m文件@implementation Algorithm #pragma mark - 滑动规则- (void)caculateTop:(DataModel *)model {  [self up_remove_blank:model];  [self up:model];} - (void)caculateBottom:(DataModel *)model {  [self down_remove_blank:model];  [self down:model];} - (void)caculateLeft:(DataModel *)model {  [self left_remove_blank:model];  [self left:model];} - (void)caculateRight:(DataModel *)model {  [self right_remove_blank:model];  [self right:model];} - (int)getAddScore {  int temp = _addScore;  _addScore = 0;  return temp;} #pragma mark - 新一个- (BOOL)randNewOne:(DataModel *)model {  array data = [model getData];  int all = 0;  for (int i=0; i<model.matrix; i++) {    for (int j=0; j<model.matrix; j++) {      if (data[i][j] == 0) {        all = all + 1;      }    }  }  if (all == 0) {    return NO;  }  int index = arc4random() % all;  all = 0;  for (int i=0; i<model.matrix; i++) {    for (int j=0; j<model.matrix; j++) {      if (data[i][j] == 0) {        all = all + 1;        if (all == index+1) {          data[i][j] = 2;          return YES;        }      }    }  }  return NO;} #pragma mark - 滑动算法- (void)up_remove_blank:(DataModel *)model {  array data = [model getData];  int i,j,k;  for(j=0;j < model.matrix;j++){    for(i=1;i < model.matrix;i++){      k=i;      while(k-1>=0&&data[k-1][j]==0){//上面的那个为空        //swap(data[k][j],data[k-1][j]);        int temp = data[k][j];        data[k][j] = data[k-1][j];        data[k-1][j] = temp;        k--;      }    }  }} - (void)down_remove_blank:(DataModel *)model {  array data = [model getData];  int i,j,k;  for(j=0; j < model.matrix; j++){    for(i = model.matrix-2; i >= 0; i--){      k=i;      while(k+1<=model.matrix-1&&data[k+1][j]==0){//上面的那个为空        //swap(a[k][j],a[k][j]);        int temp = data[k][j];        data[k][j] = data[k+1][j];        data[k+1][j] = temp;        k++;      }    }  }} - (void)left_remove_blank:(DataModel *)model {  array data = [model getData];  int i,j,k;  for(i=0;i < model.matrix;i++){    for(j=1;j<model.matrix;j++){      k=j;      while(k-1>=0&&data[i][k-1]==0){//上面的那个为空        //swap(a[i][k],a[i][k-1]);        int temp = data[i][k];        data[i][k] = data[i][k-1];        data[i][k-1] = temp;        k--;      }    }  }}- (void)right_remove_blank:(DataModel *)model {  array data = [model getData];  int i,j,k;  for(i=0;i<model.matrix;i++){    for(j=model.matrix-2;j>=0;j--){      k=j;      while(k+1<=model.matrix-1&&data[i][k+1]==0){//上面的那个为空        //swap(a[i][k],a[i][k+1]);        int temp = data[i][k];        data[i][k] = data[i][k+1];        data[i][k+1] = temp;        k++;      }    }  }}- (void)left:(DataModel *)model {  array data = [model getData];  int i,j;  for(i=0;i<model.matrix;i++){    for(j=0;j<model.matrix-1;j++){      if(data[i][j]==data[i][j+1]){        _addScore = _addScore + data[i][j];        data[i][j]+=data[i][j+1];        data[i][j+1]=0;        [self left_remove_blank:model];      }    }  }}- (void)right:(DataModel *)model {  array data = [model getData];  int i,j;  for(i=0;i<model.matrix;i++){    for(j=model.matrix-1;j>=1;j--){      if(data[i][j]==data[i][j-1]){        _addScore = _addScore + data[i][j];        data[i][j]+=data[i][j-1];        data[i][j-1]=0;        [self right_remove_blank:model];      }    }  }}- (void)up:(DataModel *)model {  array data = [model getData];  int i,j;  for(j=0;j<model.matrix;j++){//每一列    for(i=0;i<model.matrix-1;i++){      if(data[i][j]==data[i+1][j]){        _addScore = _addScore + data[i][j];        data[i][j]=data[i][j]+data[i+1][j];        data[i+1][j]=0;        //移除空格        [self up_remove_blank:model];      }    }  }}- (void)down:(DataModel *)model {  array data = [model getData];  int i,j;  for(j=0;j<model.matrix;j++){//每一列    for(i=model.matrix-1;i>=1;i--){      if(data[i][j]==data[i-1][j]){        _addScore = _addScore + data[i][j];        data[i][j]=data[i][j]+data[i-1][j];        data[i-1][j]=0;        //移除空格        [self down_remove_blank:model];      }    }  }} @end