68 lines
2.9 KiB
Markdown
68 lines
2.9 KiB
Markdown
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## InputBufferConponent
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绑定输入。输入命令队列。
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IsTransitimtCache，如果有Pool里有对应命令就会切换到下一个State。
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### SDHInputCommandActionMap
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- Has Order：解析Command是否按键顺序。
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- InputActionCommandType：在LCMDates.h定义。
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- ButtonAction：在LCMDates.h定义。
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## StateMachine
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Transition每帧都会检测。
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- EnableButtonActionBufferBlockMap：该状态可以启用的命令
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- ResetButtonActionBufferBlockMapState：将所有命令都设置为禁止。
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- CacheCommandTransmitter：将命令加到Pool中。
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## 我的想法
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因为大部分StateMachine都和GAS会有关联（GASTag与GAS属性判断），所以我希望：
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1. 在OnStartStateMachine中先获取GAS组件。
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2. 在编辑器模式下，检测StateGraph中的StateABility是否都已经想GAS组件注册。（有的时候会忘记）
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3. 监控Ability是否结束，以及控制Ability结束。BP_SDHSkillStateIns
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4.
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5.
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6. 之后使用 FGameplayAbilityEndedDelegate OnAbilityEnded;。
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```c++
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/** Allow events to be registered for specific gameplay tags being added or removed */
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FOnGameplayEffectTagCountChanged& RegisterGameplayTagEvent(FGameplayTag Tag, EGameplayTagEventType::Type EventType=EGameplayTagEventType::NewOrRemoved);
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/** Unregister previously added events */
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void UnregisterGameplayTagEvent(FDelegateHandle DelegateHandle, FGameplayTag Tag, EGameplayTagEventType::Type EventType=EGameplayTagEventType::NewOrRemoved);
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/** Register a tag event and immediately call it */
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FDelegateHandle RegisterAndCallGameplayTagEvent(FGameplayTag Tag, FOnGameplayEffectTagCountChanged::FDelegate Delegate, EGameplayTagEventType::Type EventType=EGameplayTagEventType::NewOrRemoved);
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/** Returns multicast delegate that is invoked whenever a tag is added or removed (but not if just count is increased. Only for 'new' and 'removed' events) */
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FOnGameplayEffectTagCountChanged& RegisterGenericGameplayTagEvent();
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/** Executes a gameplay event. Returns the number of successful ability activations triggered by the event */
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virtual int32 HandleGameplayEvent(FGameplayTag EventTag, const FGameplayEventData* Payload);
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```
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1. 监听StateAbility的Ability结束。方法有2：1、绑定GAS组件的OnAbilityEnded委托。2、重写EndAbility函数。
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```c++
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bool UAbilitySystemComponent::TryActivateAbilityByClass(TSubclassOf<UGameplayAbility> InAbilityToActivate, bool bAllowRemoteActivation)
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{
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bool bSuccess = false;
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const UGameplayAbility* const InAbilityCDO = InAbilityToActivate.GetDefaultObject();
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for (const FGameplayAbilitySpec& Spec : ActivatableAbilities.Items)
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{
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if (Spec.Ability == InAbilityCDO)
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{
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bSuccess |= TryActivateAbility(Spec.Handle, bAllowRemoteActivation);
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break;
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}
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}
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return bSuccess;
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}
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bool UAbilitySystemComponent::TryActivateAbility(FGameplayAbilitySpecHandle AbilityToActivate, bool bAllowRemoteActivation)
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```
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```
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void UAbilitySystemComponent::NotifyAbilityEnded(FGameplayAbilitySpecHandle Handle, UGameplayAbility* Ability, bool bWasCancelled)
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```
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