Objective-C怎样来实现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=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 = 0; i--){
      k=i;
      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=0;j--){
      k=j;
      while(k+1=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=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

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