Unreal Engine4 学习笔记1 状态机 动画蓝图

1.动画蓝图 包含 状态机 包含 混合空间BlendSpace，即状态机包含在动画蓝图的"动画图表中"，而混合空间可用于在状态机中向某（没）一个状态输出最终POSE:

  

动画蓝图一共包含两个东西，除了上面提到的动画图表，还包括了一个事件图表。动画图表中，状态机内肯定有一些变量来决定状态的转换，比如"isInAir","speed"等。而这些都可以在"事件图表"中得到并设置:

动画又是怎么和我们控制的角色关联起来的呢？

第一种方式是通过Character蓝图，然后如图有相关选项进行关联，下图的例子关联了动画和Mesh

 

2.新建的c++项目，是不包含Character类的， 但包含一个parent class 为 GameMode的类

关于出生点，最好是在GameMode类的基础上新建一个GameMode蓝图，然后在蓝图中设置Default Pawn Class:

然后还要在设置->世界设置中进行设置:

关于输入，这样的代码出现在Character类中:

void ABatteryCollectorCharacter::SetupPlayerInputComponent(class UInputComponent* InputComponent)
{
    // Set up gameplay key bindings
    check(InputComponent);
    InputComponent->BindAction("Jump", IE_Pressed, this, &ACharacter::Jump);
    InputComponent->BindAction("Jump", IE_Released, this, &ACharacter::StopJumping);
    InputComponent->BindAction("Collect", IE_Pressed, this, &ABatteryCollectorCharacter::CollectPickups);

    InputComponent->BindAxis("MoveForward", this, &ABatteryCollectorCharacter::MoveForward);
    InputComponent->BindAxis("MoveRight", this, &ABatteryCollectorCharacter::MoveRight);

    // We have 2 versions of the rotation bindings to handle different kinds of devices differently
    // "turn" handles devices that provide an absolute delta, such as a mouse.
    // "turnrate" is for devices that we choose to treat as a rate of change, such as an analog joystick
    InputComponent->BindAxis("Turn", this, &APawn::AddControllerYawInput);
    InputComponent->BindAxis("TurnRate", this, &ABatteryCollectorCharacter::TurnAtRate);
    InputComponent->BindAxis("LookUp", this, &APawn::AddControllerPitchInput);
    InputComponent->BindAxis("LookUpRate", this, &ABatteryCollectorCharacter::LookUpAtRate);

    // handle touch devices
    InputComponent->BindTouch(IE_Pressed, this, &ABatteryCollectorCharacter::TouchStarted);
    InputComponent->BindTouch(IE_Released, this, &ABatteryCollectorCharacter::TouchStopped);
}