// 添加铁轨物件，给火车待行驶的铁轨队列入队
public bool PutRail(GameObject rail)
{
if (TrainDamage)
{
return(false);
}
if (!RailPut)
{
return(false);
}
Vector3 new_pos = Rail_preview.position;
int x = (int)new_pos.x, z = (int)new_pos.z;
RailsManager.TurnDirect turnDirect;
if (railsManager.TryPut(rail, new_pos, !trainManager.MoveToLast, out turnDirect)) //尝试铺设铁轨
{
rail.layer = 0;
Rail_preview.position = new Vector3(x, -1, z);
// 根据转向判断是否需要更新队尾元素
if (turnDirect == RailsManager.TurnDirect.Left || turnDirect == RailsManager.TurnDirect.Right)
{
trainManager.UpdateLastRail((TrainManager.TurnDirect)turnDirect);
}
// 入队新的铁轨
trainManager.AddRail(new_pos, TrainManager.TurnDirect.Straight);
// 除草
if (obstacles[x, z] == Obstacle.grass)
{
Transform grass = GameObject.Find("Environment").transform.Find("Grasses").Find("Grass_" + x + "_" + z);
Destroy(grass.gameObject);
obstacles[x, z] = Obstacle.empty;
}
obstacles[x, z] = Obstacle.rail;
int end = railsManager.AdjacentToEnd(new_pos); //判断是否邻近终点铁轨
if (end != -1) // end为0代表邻近下标为0的终点铁轨，为1代表邻近下标为1的终点铁轨，为-1代表不邻近终点铁轨
{
RailsManager.TurnDirect[] turnDirects;
railsManager.ConnectToEnd(end, out turnDirects);
Vector3 ep0 = railsManager.EndRail[end].pos, ep1 = railsManager.EndRail[(end + 1) % 2].pos;
if (turnDirects[0] == RailsManager.TurnDirect.Left || turnDirects[0] == RailsManager.TurnDirect.Right)
{
trainManager.UpdateLastRail((TrainManager.TurnDirect)turnDirects[0]);
}
trainManager.AddRail(ep0, (TrainManager.TurnDirect)turnDirects[1]);
trainManager.AddRail(ep1, TrainManager.TurnDirect.Straight);
print("All rails have been laid.");
}
return(true);
}
else
{
return(false);
}
}