/// <summary>
/// 获取最远点
/// </summary>
/// <param name="context"></param>
/// <param name="selectionData"></param>
/// <returns></returns>
private static void GetFarthestPostionActionTarget(ref ActionTarget actionTarget, IContext context, Vector3 calculateDirection)
{
IBaseActionProperty baseActionProperty = context.GetObject <IBaseActionProperty>();
if (baseActionProperty.IsMain())
{
SkillData skillData = context.GetObject <SkillData>();
MainCameraComponent mainCamComponent = context.GetObject <MainCameraComponent>();
if (mainCamComponent == null)
{
actionTarget = null;
return;
}
//最远点
Vector3 distantPoint = Vector3.zero;
Vector3 playerPosition = baseActionProperty.GetRootTransform().position; //玩家位置
Vector3 CamPosition = mainCamComponent.GetPosition(); //摄像机位置
Vector3 cameDir = calculateDirection; /*mainCamComponent.GetForward()*/ //摄像机方向向量
Vector3 camera2Player = playerPosition - CamPosition; //摄像机到玩家的向量
Vector3 verticalPos = CamPosition + Vector3.Dot(camera2Player, cameDir) * cameDir; //垂线坐标 = 摄像机坐标+ camera2Player在cameDir投影距离 * cameDir向量
Vector3 Play2VerticaN = (verticalPos - playerPosition).normalized; //玩家到垂线点 的单位向量
float Play2VerticaD = Vector3.Distance(verticalPos, playerPosition); //玩家跟垂线点的距离
float MaxDis = skillData.BaseData.Value.MaxDistance;
if (MaxDis > Play2VerticaD)
{
distantPoint = Mathf.Sqrt(MaxDis * MaxDis - Play2VerticaD * Play2VerticaD) * cameDir + verticalPos; //最远点 = 三角函数求得垂线点到最远点向量+ 垂线点坐标
}
else
{
distantPoint = playerPosition + Play2VerticaN * MaxDis;//垂线上找到距离是 MaxDis 的坐标
}
actionTarget.TargetType = ActionTargetType.Position;
actionTarget.TargetPosition = distantPoint;
}
else
{
SkillData skillData = context.GetObject <SkillData>();
Vector3 playerPosition = baseActionProperty.GetRootTransform().position;
float d = skillData.BaseData.Value.MaxDistance;
Vector3 distantPoint = playerPosition + calculateDirection * d;
actionTarget.TargetType = ActionTargetType.Position;
actionTarget.TargetPosition = distantPoint;
//Leyoutech.Utility.DebugUtility.LogError("第三方最远点方向", string.Format("计算最远点 ---->self = {0} , calculateDirection = {1}, PlayPos = {2} , distantPoint = {3}",
// baseActionProperty.EntityId(),
// calculateDirection,
// playerPosition,
// distantPoint
// ));
}
}
internal static ActionTarget GetActionTarget(IContext context, TargetSelectionData selectionData)
{
ActionTarget actionTarget = new ActionTarget();
IBaseActionProperty baseActionProperty = context.GetObject <IBaseActionProperty>();
SkillData skillData = context.GetObject <SkillData>();
PerceptronTarget perceptron = context.GetObject <PerceptronTarget>();
Vector3 calculateDirection = Vector3.zero;
LinkedList <CCrossSightLoic.Target> entities = null;
if (!skillData.BaseData.Value.CanChangeTarget)
{ //不能切换
entities = perceptron.GetCurrQueue(out calculateDirection, false, skillData.BaseData.Value.TagercalculationType);
}
else
{
//能切换
entities = perceptron.GetCurrQueue(out calculateDirection, true, skillData.BaseData.Value.TagercalculationType);
}
// //阵营筛选，已经在技能释放前过滤过了，下面不进行
// if (entities.Count > 0) //有目标，目标单位为发射方向
// {
CCrossSightLoic.Target cctarget = GetTargetEntity(context, entities, baseActionProperty.GetOwner(), selectionData);
if (cctarget == null)
{
//没目标，最远点为发射方向
GetFarthestPostionActionTarget(ref actionTarget, context, calculateDirection);
}
else
{
BaseEntity entity = GameplayManager.Instance.GetEntityManager().GetEntityById <BaseEntity>((uint)cctarget.target_entityId);
if (entity != null)
{
actionTarget.Entity = entity;
actionTarget.TargetEntity = entity.GetRootTransform();
actionTarget.TargetEntityHitPositionOffet = cctarget.target_pos - entity.GetRootTransform().position;
actionTarget.TargetType = ActionTargetType.Entity;
}
else
{
//没目标，最远点为发射方向
GetFarthestPostionActionTarget(ref actionTarget, context, calculateDirection);
}
}
// }
// else
// {//没目标，最远点为发射方向
//
// GetFarthestPostionActionTarget(ref actionTarget, context, calculateDirection);
// }
if (actionTarget.TargetType == ActionTargetType.None)
{
return(null);
}
else
{
return(actionTarget);
}
}
