Unity/C#~DiveCameraを使用しVR空間内で動く(コードメモ)

今回は、VR空間内を自由に歩き回ったり、飛び回ったりできるアプリを実装。

◆事前準備
1.https://www.durovis.com/en/sdk.html から「Dive Unity Plugin Package」をダウンロード。
2.MainCameraの代わりにステージ上にダウンロードしたパッケージの中からDiveCameraを配置

デバイス上で、Gyroセンサーを感知、またDiveCamera自身を動かすために以下のScriptを用意します。

GyroScriptWalk.cs

using UnityEngine;
using System.Collections;

public class GyroScriptWalk : MonoBehaviour {

    public GameObject diveCamera;
        // 移動速度を数パターン設定（後進は-で定義)
    public float moveSpeed  = 10.0f;
    public float moveSpeed2 = 30.0f;
    public float moveSpeed3 = -10.0f;
    public float moveAngleX = 10.0f;
    public float moveAngleXX = 20.0f;
    public float moveAngleXXX = 350.0f;
    public float moveAngleXXXX = 340.0f;


    float yOffset;

    Quaternion currentGyro;

    void Start(){
        Input.gyro.enabled = true;
        yOffset = gameObject.transform.position.y;
    }

    void Update () {
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　//　Gyroセンサーを感知
        currentGyro = Input.gyro.attitude;
        this.transform.localRotation = 
            Quaternion.Euler (90, 90, 0) * (new Quaternion (-currentGyro.x, -currentGyro.y, currentGyro.z, currentGyro.w)); 

        // 1.カメラの傾きを取得
        float angle = diveCamera.transform.eulerAngles.x;   

        // 2.ある角度以内であれば前進させる
        if (moveAngleX < angle && angle < moveAngleXX) {
            moveForward ();
        } else if (moveAngleXX < angle && angle < 45.0f) {
            runForward ();
        } else if (moveAngleXXX > angle && angle > moveAngleXXXX) {
            moveBackward ();
        }
  }

　　　　　　　　　　　　　　　　// 2.速度に合わせて移動(moveForward,runForward,moveBackward)を定義
    public void moveForward() {
        Vector3 direction = new Vector3 (diveCamera.transform.forward.x, 0, diveCamera.transform.forward.z).normalized * moveSpeed * Time.deltaTime;
        Quaternion rotation = Quaternion.Euler (new Vector3 (0, -diveCamera.transform.rotation.eulerAngles.y, 0));
        diveCamera.transform.Translate (rotation * direction);
        diveCamera.transform.position = new Vector3 (diveCamera.transform.position.x, yOffset, diveCamera.transform.position.z);
    }

　　　　　　　　　　　　　　　　public void runForward() {
        Vector3 direction = new Vector3 (diveCamera.transform.forward.x, 0, diveCamera.transform.forward.z).normalized * moveSpeed2 * Time.deltaTime;
        Quaternion rotation = Quaternion.Euler (new Vector3 (0, -diveCamera.transform.rotation.eulerAngles.y, 0));
        diveCamera.transform.Translate (rotation * direction);
        diveCamera.transform.position = new Vector3 (diveCamera.transform.position.x, yOffset, diveCamera.transform.position.z);
    }

    public void moveBackward() {
        Vector3 direction = new Vector3 (diveCamera.transform.forward.x, 0, diveCamera.transform.forward.z).normalized * moveSpeed3 * Time.deltaTime;
        Quaternion rotation = Quaternion.Euler (new Vector3 (0, -diveCamera.transform.rotation.eulerAngles.y, 0));
        diveCamera.transform.Translate (rotation * direction);
        diveCamera.transform.position = new Vector3 (diveCamera.transform.position.x, yOffset, diveCamera.transform.position.z);
    }
}