说明

播放动画时, 不允许其他操作, 使用动画通知 AnimNotify 实现

概览

• 为更换武器和装弹创建动画通知基类
  
• 将动画通知逻辑移动到STUAnimNotify, 使STUEquipFinishedAnimNotify派生自STUAnimNotify
  
• 在装弹动画中添加结束事件, 注册处理函数
  
• 手动装弹时检查, 完善开火和更换武器检查
  

创建AnimNotify派生类

创建STUAnimNotify

-
基类	AnimNotify
路径	Animations
属性	Public

创建STUReloadFinishedAnimNotify

-
基类	STUAnimNOtify
路径	Animations
属性	Public

把动画通知逻辑从STUEquipFinishedAnimNotify移动到STUAnimNotify

实现STUAnimNotify

1. 定义委托类型
   
   ShootThemUp: Animations/STUAnimNotify.h
   

   Copy1DECLARE_MULTICAST_DELEGATE_OneParam(FOnNotifiedSignature, USkeletalMeshComponent*);

2. 添加数据成员
   
   public

ShootThemUp: Animations/STUAnimNotify.h
   

   Copy1FOnNotifiedSignature OnNotified;           
   

3. 覆写虚函数
   
   public

ShootThemUp: Animations/STUAnimNotify.h
   

   Copy1virtual void Notify(USkeletalMeshComponent *MeshComp, UAnimSequenceBase *Animation, const FAnimNotifyEventReference& EventReference) override;

   ShootThemUp: Animations/STUAnimNotify.cpp
   

   Copy1void USTUAnimNotify::Notify(USkeletalMeshComponent *MeshComp, UAnimSequenceBase *Animation, const FAnimNotifyEventReference& EventReference)
   2{
   3    OnNotified.Broadcast(MeshComp);
   4    Super::Notify(MeshComp, Animation, EventReference);
   5}

修改STUEquipFinishedAnimNotify

1. 派生自STUAnimNotify, 修改头文件
   
   ShootThemUp: Animations/STUEquipFinishedAnimNotify.h
   

   Copy1// #include "Animation/AnimNotifies/AnimNotify.h"
   2#include "Animations/STUAnimNotify.h"
   3
   4class SHOOTTHEMUP_API USTUEquipFinishedAnimNotify : public STUAnimNotify

2. 屏蔽数据成员OnNotified
   
   ShootThemUp: Animations/STUEquipFinishedAnimNotify.h
   
3. 屏蔽函数成员Notify
   
   ShootThemUp: Animations/STUEquipFinishedAnimNotify.h

ShootThemUp: Animations/STUEquipFinishedAnimNotify.cpp
   

实现模板函数, 给定动画剪辑, 查找指定类型的通知事件

private

ShootThemUp: Components/STUWeaponComponent.h

Copy 1#include "Animation/AnimSequenceBase.h"
 2
 3template<typename T>
 4T* FindNotifyByClass(UAnimSequenceBase *Animation)
 5{
 6    if (!Animation) return nullptr;
 7
 8    const auto NotifyEvents = Animation->Notifies;
 9    for (auto NotifyEvent : NotifyEvents)
10    {
11        auto AnimNotify = Cast<T>(NotifyEvent.Notify);
12        if (AnimNotify)
13        {
14            return AnimNotify;
15        }
16    }
17    return nullptr;
18}

修改InitAnimations中查找更换武器结束事件的方式

ShootThemUp: Components/STUWeaponComponent.cpp

Copy1auto EquipFinishedNotify = FindNotifyByClass<USTUEquipFinishedAnimNotify>(EquipAnimMontage);
2if (EquipFinishedNotify)
3{
4    EquipFinishedNotify->OnNotified.AddUObject(this, &USTUWeaponComponent::OnEquipFinished);
5}

搭建装弹动画结束通知框架

在装弹动画剪辑中添加通知事件

定义空的回调函数

private

ShootThemUp: Components/STUWeaponComponent.h

Copy1void OnReloadFinished(USkeletalMeshComponent *MeshComp);

ShootThemUp: Components/STUWeaponComponent.cpp

Copy1void USTUWeaponComponent::OnReloadFinished(USkeletalMeshComponent *MeshComp) { }

为装弹动画结束事件注册处理函数

ShootThemUp: Components/STUWeaponComponent.cpp

Copy 1#include "Animations/STUReloadFinishedAnimNotify.h"
 2
 3for (auto OneWeaponData : WeaponData)
 4{
 5    auto ReloadFinishedNotify = FindNotifyByClass<USTUReloadFinishedAnimNotify>(OneWeaponData.ReloadAnimMontage);
 6    if (ReloadFinishedNotify)
 7    {
 8        ReloadFinishedNotify->OnNotified.AddUObject(this, &USTUWeaponComponent::OnReloadFinished);
 9    }
10}

手动装弹时进行检查

添加标志位

private

ShootThemUp: Components/STUWeaponComponent.h

Copy1bool ReloadAnimInProgress = false;

实现检查接口

private

ShootThemUp: Components/STUWeaponComponent.h

Copy1bool CanReload() const;        

ShootThemUp: Components/STUWeaponComponent.cpp

Copy1bool USTUWeaponComponent::CanReload() const
2{
3    return CurrentWeapon && !EquipAnimInProgress && !ReloadAnimInProgress;
4}

播放装弹动画前进行检查, 设置标志位

ShootThemUp: Components/STUWeaponComponent.cpp

Copy1// Reload
2
3if (!CanReload()) return;
4ReloadAnimInProgress = true;

修改开火检查

ShootThemUp: Components/STUWeaponComponent.cpp

Copy1// CanFire
2return CurrentWeapon && !EquipAnimInProgress && !ReloadAnimInProgress;

修改更换武器检查

ShootThemUp: Components/STUWeaponComponent.cpp

Copy1// CanEquip
2return !EquipAnimInProgress && !ReloadAnimInProgress;

实现回调函数

ShootThemUp: Components/STUWeaponComponent.cpp

Copy1void USTUWeaponComponent::OnReloadFinished(USkeletalMeshComponent *MeshComp)
2{
3    ACharacter *Character = Cast<ACharacter>(GetOwner());
4    if (!Character || (Character->GetMesh() != MeshComp)) return;
5
6    ReloadAnimInProgress = false;    
7}