Unreal Engine4 學習筆記1 狀態機 動畫藍圖

1.動畫藍圖 包含 狀態機 包含 混合空間BlendSpace，即狀態機包含在動畫藍圖的"動畫圖表中"，而混合空間可用於在狀態機中向某（沒）一個狀態輸出最終POSE:

  

動畫藍圖一共包含兩個東西，除了上面提到的動畫圖表，還包括了一個事件圖表。動畫圖表中，狀態機內肯定有一些變量來決定狀態的轉換，比如"isInAir","speed"等。而這些都可以在"事件圖表"中得到並設置:

動畫又是怎么和我們控制的角色關聯起來的呢？

第一種方式是通過Character藍圖，然后如圖有相關選項進行關聯，下圖的例子關聯了動畫和Mesh

 

 

2.新建的c++項目，是不包含Character類的， 但包含一個parent class 為 GameMode的類

關於出生點，最好是在GameMode類的基礎上新建一個GameMode藍圖，然后在藍圖中設置Default Pawn Class:

然后還要在設置->世界設置中進行設置:

 

關於輸入，這樣的代碼出現在Character類中:

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);
}