void Animate()
    {
        if(mAnimateTime < Time.time)
        {

            mAnimateTime = TimeBetweenFrames + Time.time;

            if (mMaterials == MaterialsRat.Walking1)
            {
              mMaterials = MaterialsRat.Walking2;
              if (mDirection == 1)
                  renderer.material = Walking2Left;
              else
                  renderer.material = Walking2Right;
            }

            else if (mMaterials == MaterialsRat.Walking2)
            {
                mMaterials = MaterialsRat.Walking3;
                    if(mDirection == 1)
              renderer.material = Walking3Left;
                else
                    renderer.material = Walking3Right;
            }

            else if (mMaterials == MaterialsRat.Walking3)
            {
                mMaterials = MaterialsRat.Walking4;
                     if(mDirection == 1)
              renderer.material = Walking4Left;
                else
                     renderer.material = Walking4Right;
            }

            else if (mMaterials == MaterialsRat.Walking4)
            {
                mMaterials = MaterialsRat.Walking1;
                    if(mDirection == 1)
              renderer.material = Walking1Left;
                else
                     renderer.material = Walking1Right;
            }

        }
    }
 // Use this for initialization
 void Start()
 {
     life = MAXLIFE;
        mMaterials = MaterialsRat.Walking1;
 }