// Returns success if an object was found otherwise failure
public override TaskStatus OnUpdate()
{
//寄主势力
Individual.Power masterPower = gameObject.GetComponent <Individual>().power;
//计算出对应的敌对势力
Individual.Power enemyPower = Individual.Power.Neutral;
switch (masterPower)
{
case Individual.Power.Monster: enemyPower = Individual.Power.Human; break;
case Individual.Power.Human: enemyPower = Individual.Power.Monster; break;
}
if (usePhysics2D)
{
//单个目标对象来筛选敌对目标
if (targetObject.IsShared)
{
if (targetObject.Value)
{
objectInSight.Value = MovementUtility.WithinSight2D(transform, offset.Value, fieldOfViewAngle.Value, viewDistance.Value, targetObject.Value);
}
}
//个体层+敌对势力来筛选敌对目标
else
{
objectInSight.Value = ExtendedMovementUtility.WithinSight2D(transform, offset.Value, fieldOfViewAngle.Value, viewDistance.Value, objectLayerMask, enemyPower);
}
}
else
{
//单个目标对象来筛选敌对目标
if (targetObject.IsShared)
{
if (targetObject.Value)
{
objectInSight.Value = MovementUtility.WithinSight(transform, offset.Value, fieldOfViewAngle.Value, viewDistance.Value, targetObject.Value);
}
}
//个体层+敌对势力来筛选敌对目标
else
{
objectInSight.Value = ExtendedMovementUtility.WithinSight(transform, offset.Value, fieldOfViewAngle.Value, viewDistance.Value, objectLayerMask, enemyPower);
}
}
if (objectInSight.Value != null)
{
// Return success if an object was found
return(TaskStatus.Success);
}
// An object is not within sight so return failure
return(TaskStatus.Failure);
}
/// <summary>
/// 检测对应layer且对应势力的对象
/// </summary>
/// <param name="transform"></param>
/// <param name="positionOffset"></param>
/// <param name="fieldOfViewAngle"></param>
/// <param name="viewDistance"></param>
/// <param name="objectLayerMask"></param>
/// <param name="势力"></param>
/// <returns></returns>
public static Transform WithinSight(Transform transform, Vector3 positionOffset, float fieldOfViewAngle, float viewDistance, LayerMask objectLayerMask, Individual.Power power)
{
Transform objectFound = null;
var hitColliders = Physics.OverlapSphere(transform.position, viewDistance, objectLayerMask);
if (hitColliders != null)
{
for (int i = 0; i < hitColliders.Length; ++i)
{
Transform obj;
//检测势力是否一致
if (hitColliders[i].gameObject.GetComponent <Individual>().power != power)
{
continue;
}
// Call the WithinSight function to determine if this specific object is within sight
if ((obj = MovementUtility.WithinSight(transform, positionOffset, fieldOfViewAngle, viewDistance, hitColliders[i].transform)) != null)
{
objectFound = obj;
}
}
}
return(objectFound);
}