static public TBTAction GetBehaviorTreeAction()
{
if (_bevTreeAct != null)
{
return(_bevTreeAct);
}
_bevTreeAct = new TBTActionPrioritizedSelector();
// _bevTreeAct.AddChild(new TBTActionSequence()
// .SetPrecondition(new TBTPreconditionNOT(new CON_HasReachedTarget()))
// .AddChild(new NOD_TurnTo())
// .AddChild(new NOD_MoveTo()))
// .AddChild(new NOD_Attack());
TBTActionSequence actionSequence = new TBTActionSequence();
_bevTreeAct.AddChild(actionSequence);
CON_HasReachedTarget hasReachedTarget = new CON_HasReachedTarget();
TBTPreconditionNOT preconditionNOT = new TBTPreconditionNOT(hasReachedTarget);
actionSequence.SetPrecondition(preconditionNOT);
NOD_TurnTo turnTo = new NOD_TurnTo();
NOD_MoveTo moveTo = new NOD_MoveTo();
NOD_Attack attackTo = new NOD_Attack();
actionSequence.AddChild(turnTo);
actionSequence.AddChild(moveTo);
actionSequence.AddChild(attackTo);
return(_bevTreeAct);
}
public static TBTActionPrioritizedSelector GetBehaviorTree()
{
if (m_BehaviorTreeNode == null)
{
// 父节点
m_BehaviorTreeNode = new TBTActionPrioritizedSelector();
// 设置idle节点
var setUnitIdleNode = new NOD_SetUnitIdle();
// 转向节点
var turnToSelectorNode = new TBTActionPrioritizedSelector();
turnToSelectorNode.SetPrecondition(new CON_IsAngleNeedTurnTo());
turnToSelectorNode.AddChild(new NOD_TurnTo()); //todo can turn to
turnToSelectorNode.AddChild(setUnitIdleNode);
// 追逐节点
var moveToSelectorNode = new TBTActionPrioritizedSelector();
moveToSelectorNode.SetPrecondition(new CON_IsInRange());
moveToSelectorNode.AddChild(new NOD_MoveTo()); //todo can Move to
moveToSelectorNode.AddChild(setUnitIdleNode);
// ①追逐
TBTAction chaseSelectorNode = new TBTActionPrioritizedSelector().SetPrecondition(new CON_IsChaseRequest());
chaseSelectorNode.AddChild(turnToSelectorNode);
chaseSelectorNode.AddChild(moveToSelectorNode);
// ②自动战斗节点构建
// 转向和追逐并行
var abilityTurnMoveToParallelNode = new TBTActionParallel();
// 技能转向节点
TBTPreconditionAND abilityTurnCondition = new TBTPreconditionAND(new CON_IsAbilityNeedTurnTo(), new CON_IsAngleNeedTurnTo());
abilityTurnMoveToParallelNode.AddChild(new NOD_TurnTo().SetPrecondition(abilityTurnCondition));
// 技能追逐节点
TBTPreconditionNOT abilityMoveCondition = new TBTPreconditionNOT(new CON_IsInAbilityRange());
abilityTurnMoveToParallelNode.AddChild(new NOD_MoveTo().SetPrecondition(abilityMoveCondition));
abilityTurnMoveToParallelNode.SetEvaluationRelationship(TBTActionParallel.ECHILDREN_RELATIONSHIP.OR);
// 技能施法节点
var castAbilitySelectorNode = new TBTActionPrioritizedSelector();
castAbilitySelectorNode.SetPrecondition(new CON_CanCastAbility());
castAbilitySelectorNode.AddChild(new NOD_CastAbility());
castAbilitySelectorNode.AddChild(setUnitIdleNode);
var autoCastAbilityNode = new TBTActionPrioritizedSelector().SetPrecondition(new CON_IsAutoCastAbilityRequest());
// 转向、移动、施法
autoCastAbilityNode.AddChild(abilityTurnMoveToParallelNode);
autoCastAbilityNode.AddChild(castAbilitySelectorNode);
/// 开始构造树
m_BehaviorTreeNode.AddChild(chaseSelectorNode);
m_BehaviorTreeNode.AddChild(autoCastAbilityNode);
}
return(m_BehaviorTreeNode);
}
