/// <summary>
/// 使用破墙镐消除使用者前方的障碍物，如果消去成功，物品数量减1
/// </summary>
public override void Use(IPropUser user)
{
//打破前面的一堵墙
Coord station = user.Station;
station.Offset(user.FaceTo);
if (MotaWorld.GetInstance().MapManager.Destroy(station))
{
//如果破坏成功，减掉道具
this.CutDown();
}
}
/// <summary>
/// 获取楼层对象中两点之间的路径(用坐标队列表示)
/// </summary>
/// <returns>返回从起点到终点的移动方向的队列，如果没有通行的路线，返回null</returns>
public Queue <Coord> Compute()
{
if (!InMap(StartPos) || !InMap(TargetPos))
{
return(null);
}
//设置起始搜索路径开始搜索
PathQueue.Enqueue(StartPath);
//只要搜索队列中存在一条路径，就继续搜索
while (PathQueue.Count > 0)
{
//从路径队列中获取当前搜索的路线
Queue <Coord> curPath = PathQueue.Dequeue();
//从当前路线中获取当前的搜索点
Coord curPos = curPath.ElementAt(curPath.Count - 1);
//检查是否为终点坐标，如果搜索到终点，退出循环
if (curPos.CompareTo(TargetPos) == 0)
{
TargetPath = curPath;
break;
}
//向四个方向扩展搜索
foreach (var searchDirection in Around)
{
Coord newPos = curPos;
newPos.Offset(searchDirection);
//如果新的搜索点未曾搜索过，加入队列以待之后的搜索
if (InMap(newPos) && !Passed[newPos.Row, newPos.Col] && Passable(newPos, searchDirection))
{
Passed[newPos.Row, newPos.Col] = true;
Queue <Coord> newPath = new Queue <Coord>(curPath);
newPath.Enqueue(newPos);
PathQueue.Enqueue(newPath);
}
}
}
return(TargetPath);
}
/// <summary>
/// 触发推箱子事件
/// </summary>
/// <param name="player">触发者</param>
public override void TriggerEvent(Hero player)
{
//要推到的坐标
Coord desPoint = this.Station;
desPoint.Offset(player.FaceTo);
PushWaitCount++;
if (PushWaitCount <= GameIni.BoxPushWait)
{
return;
}
//如果箱子的前方为空，则推动那个位置
if (MotaWorld.GetInstance().MapManager.ShiftEvent(this.Station, desPoint, player.FaceTo))
{
StartMove(player.FaceTo);
SoundsList.PlaySound(SoundType.推箱子);
this.MoveCount -= GameIni.BoxMoveTimes;
}
base.TriggerEvent(player);
}
