/// <summary>
/// 用於實體的指定字段的更新
/// </summary>
/// <typeparam name="T">實體類型</typeparam>
/// <param name="express">表達式： p => p.XXX</param>
/// <param name="val">要更新的值</param>
public virtual void SetUpdate <T>(Expression <Func <T> > express, object val)
{
if (express == null || express.Body.NodeType != ExpressionType.MemberAccess)
{
throw new ArgumentException("'" + express + "': 不是有效的表達式！");
}
MemberExpression body = (MemberExpression)express.Body;
var propStr = GetUpdateKey(express);
this.ObjectState = ObjectStateType.PartialModified;
updateList.Add(propStr, val);
//用於EF的局部更新，此方法不影響MongoDB的局部更新
SetPropertyValue(this, propStr, val);
}
private static EntityState ConvertState(ObjectStateType state)
{
switch (state)
{
case ObjectStateType.Added:
return(EntityState.Added);
case ObjectStateType.Modified:
return(EntityState.Modified);
case ObjectStateType.Deleted:
return(EntityState.Deleted);
default:
return(EntityState.Unchanged);
}
}
public static void AddState(GUnit unit, int stateId, Vector3 param, ObjectStateType stateType)
{
if (!CanAddState(unit, stateId, param, stateType))
{
return;
}
var syncStateInfo = new ServerSyncStateInfo()
{
serverKeyFrame = _syncData.currentKeyFrame,
unitId = unit.UnitId,
stateId = stateId,
stateParam = param,
stateType = stateType
};
_syncData.cachedSyncInfoList.Add(syncStateInfo);
_syncData.preparedSyncInfoList.Add(syncStateInfo);
}
public static bool CanAddState(GUnit unit, int stateId, Vector3 param, ObjectStateType stateType)
{
var cachedSyncInfoList = _syncData.cachedSyncInfoList;
var currentKeyFrame = _syncData.currentKeyFrame;
for (var i = 0; i < cachedSyncInfoList.Count;)
{
var syncStateInfo = cachedSyncInfoList[i];
if (syncStateInfo.serverKeyFrame < currentKeyFrame &&
currentKeyFrame - syncStateInfo.serverKeyFrame > 2)
{
cachedSyncInfoList.RemoveAt(i);
}
else
{
i++;
}
}
var hasSame = false;
var sameStateList = cachedSyncInfoList.Where(_ => _.stateId == stateId).ToList();
for (var i = 0; i < sameStateList.Count; i++)
{
var state = sameStateList[i];
if (!hasSame && state.stateType == stateType && state.stateParam == param)
{
hasSame = true;
}
else if (hasSame && (state.stateType != stateType || state.stateParam != param))
{
hasSame = false;
}
}
return(!hasSame);
}