Unityではじめるゲームづくり Wiget_Camera.js 追尾型カメラの移動処理

Wiget_Camera.js

function LateUpdate () {
	if(!target) {
		print("non");
		return;
	}

	var wantedRotationAngle = target.eulerAngles.y;
	var wantedHeight = target.position.y + height;
	
	var currentHeight = transform.position.y;
	var currentDistanceZ = transform.position.z;
	var currentDistanceX = transform.position.x;
	
	var currentRotationAngle = transform.eulerAngles.y;
	currentRotationAngle = Mathf.LerpAngle(
		currentRotationAngle, wantedRotationAngle, rotationDamping * Time.deltaTime);
	var currentRotation = Quaternion.Euler(0, currentRotationAngle, 0);
	
	var wantedDistanceZ = target.position.z - distance;
	var wantedDistanceX = target.position.x - distance;
	
	currentHeight = Mathf.Lerp(
		currentHeight, wantedHeight, heightDamping * Time.deltaTime);
	currentDistanceZ = Mathf.Lerp(
		currentDistanceZ, wantedDistanceZ, distanceDampingZ * Time.deltaTime);
	currentDistanceX = Mathf.Lerp(
		currentDistanceX, wantedDistanceX, distanceDampingX * Time.deltaTime);
	
	transform.position.x = currentDistanceX;
	transform.position.z = currentDistanceZ; 
	transform.position.y = currentHeight;
	
	LookAtMe();
}