武器和动画

附加武器到角色骨骼

USceneComponent::AttachToComponent 用于在运行时将一个场景组件（USceneComponent）或 Actor 的根组件附加到另一个场景组件上，支持指定挂点（Socket）和变换规则（FAttachmentTransformRules）。

例如角色进入到武器的球形组件触发重叠事件时让角色捡起武器。

C++

 void AWeapon::OnSphereBeginOverlap(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
    Super::OnSphereBeginOverlap(OverlappedComponent, OtherActor, OtherComp, OtherBodyIndex, bFromSweep, SweepResult);

    // 检测是否是角色重叠球体
    ASlashCharacter *SlashCharacter = Cast<ASlashCharacter>(OtherActor);
    if (SlashCharacter)
    {
        // 把武器网格体附加到角色骨骼网格体
        FAttachmentTransformRules rule(EAttachmentRule::SnapToTarget, true);
        ItemMesh->AttachToComponent(SlashCharacter->GetMesh(), rule, TEXT("hand_l_socket"));
    }
}