// 检测可合并的物体
public void CheckLinkSurround(Tile tile)
{
// 重置状态、清空合并列表、清空得分列表
ResetCombineList();
_combineUnitList.Clear();
ScoreManager.Instance.ClearScoreList();
// 重置CurrentUnit的NextLevel和Special
CurrentUnit.NextLevel = CurrentUnit.Level;
CurrentUnit.Special = 1;
// 合并过程
GF.MyPrint("=========== CheckLinkSurround Began: " + tile.name);
LinkSurround(tile);
GF.MyPrint("=========== CheckLinkSurround Ended: " + tile.name);
// 连接完成，检查是否会合并
if (_combineUnitList.Count >= 2)
{
foreach (var unit in _combineUnitList)
{
unit.ReadyToCombine(tile.transform.position);
}
}
}
// 单次合并（递归）
private void DoLink(Tile tile)
{
GF.MyPrint("----------- DoLink Began");
int start_x = tile.X - 1;
int end_x = tile.X + 1;
start_x = start_x < 0 ? tile.X : start_x;
end_x = end_x > _row - 1 ? tile.X : end_x;
for (int x = start_x; x <= end_x; x++)
{
int offset_y = 1 - Mathf.Abs(x - tile.X);
int start_y = tile.Y - offset_y;
int end_y = tile.Y + offset_y;
start_y = start_y < 0 ? tile.Y : start_y;
end_y = end_y > _col - 1 ? tile.Y : end_y;
for (int y = start_y; y <= end_y; y++)
{
if (x == tile.X && y == tile.Y)
{
continue; // 不检测自身
}
Tile surroundTile = GetTile(x, y);
if (surroundTile.IsEmpty())
{
GF.MyPrint(surroundTile.name + " is Empty");
continue; // 如果是空的，跳过
}
Unit unit = surroundTile.Unit;
if (CheckIsInCombineList(unit) || unit == CurrentUnit)
{
GF.MyPrint(unit.name + " is already added");
continue; // 已加入列表，跳过
}
if (unit.Level != CurrentUnit.NextLevel)
{
GF.MyPrint(string.Format("Level not match: {0}/Current : {1}/{2}", unit.name, unit.Level, CurrentUnit.NextLevel));
continue; // 等级不一样，跳过
}
if (unit.Type != CurrentUnit.Type)
{
GF.MyPrint(string.Format("Type not match: {0}/Current : {1}/{2}", unit.name, unit.Type, CurrentUnit.Type));
continue; // 类型不一样，跳过
}
MoveUnit moveUnit = unit.GetComponent <MoveUnit>();
if (moveUnit != null && moveUnit.IsAlive)
{
GF.MyPrint(string.Format("{0} is still alive", moveUnit.name));
continue; // 移动物体还活着
}
GF.MyPrint(unit.name + " will be added");
_combineUnitList.Add(unit);
_singleCombineUnitList.Add(unit);
// 递归检测下一个邻位
DoLink(surroundTile);
}
}
GF.MyPrint("----------- DoLink Ended");
}
// 链接可以合并的物体(递归)
private void LinkSurround(Tile tile)
{
GF.MyPrint("----------- LinkSurround Began: " + tile.name);
// 清空单次合并列表
_singleCombineUnitList.Clear();
// 开始单次合并
DoLink(tile);
GF.MyPrint("Single Combine contains: " + _singleCombineUnitList.Count);
/** 计算分数，分数规则为：
* /* 1. 未合体：得到物体本身的分数
* /* 2. 合体：得到合体过程中每一级物体的分数（但不包含初始的物体）*/
// 单次合并如果成功后，继续查找下一等级的物体
if (_singleCombineUnitList.Count >= 2)
{
CurrentUnit.NextLevel++; // 等级提升
CurrentUnit.Special = (_singleCombineUnitList.Count > 2 ? 2 : 1); // 是否超过3个合体，变为Special物体
// 将分数加入分数列表准备做分步运算
ScoreManager.Instance.AddToScoreList(CurrentUnit.Score);
// 递归检测下一等级的Unit是否会合体
LinkSurround(CurrentUnit.Tile);
}
else
{
GF.MyPrint("Remove unit which there is only one...\t" + _singleCombineUnitList.Count);
_combineUnitList = _combineUnitList.Except(_singleCombineUnitList).ToList();
// 没有升过级，得分为本身的分数
if (CurrentUnit.NextLevel == CurrentUnit.Level)
{
ScoreManager.Instance.AddToScoreList(CurrentUnit.Score);
}
}
GF.MyPrint("----------- LinkSurround Ended");
}
// 游戏结束
private void GameOver()
{
GF.MyPrint("Game Over!");
}
// 移除地块
public void EraseUnit(Tile tile)
{
// 如果当前物体是消除操作，消除选中地块上的物体
GF.MyPrint("=========== EraseUnit Began: " + tile.name);
}
