// HyperealVR Boundaries|SDK_HyperealVR|005
namespace VRTK
{
#if VRTK_DEFINE_SDK_HYPEREALVR
    using UnityEngine;
    using Hypereal;
#endif

    /// <summary>
    /// The HyperealVR Boundaries SDK script provides a bridge to the HyperealVR SDK play area.
    /// </summary>
    [SDK_Description(typeof(SDK_HyperealVRSystem))]
    public class SDK_HyperealVRBoundaries
#if VRTK_DEFINE_SDK_HYPEREALVR
        : SDK_BaseBoundaries
#else
        : SDK_FallbackBoundaries
#endif
    {
#if VRTK_DEFINE_SDK_HYPEREALVR
        protected HyRender cachedHyperealVRPlayArea;
        private const float thickness = 0.1f;

        /// <summary>
        /// The InitBoundaries method is run on start of scene and can be used to initialse anything on game start.
        /// </summary>
        public override void InitBoundaries()
        {
        }

        /// <summary>
        /// The GetPlayArea method returns the Transform of the object that is used to represent the play area in the scene.
        /// </summary>
        /// <returns>A transform of the object representing the play area in the scene.</returns>
        public override Transform GetPlayArea()
        {
            cachedPlayArea = GetSDKManagerPlayArea();
            if (cachedPlayArea == null)
            {
                GameObject myHeadGO = VRTK_SharedMethods.FindEvenInactiveGameObject<HyHead>(null, true);
                cachedPlayArea = (myHeadGO != null ? myHeadGO.transform.parent : null);
            }
            return cachedPlayArea;
        }

        /// <summary>
        /// The GetPlayAreaVertices method returns the points of the play area boundaries.
        /// </summary>
        /// <returns>A Vector3 array of the points in the scene that represent the play area boundaries.</returns>
        public override Vector3[] GetPlayAreaVertices()
        {
            int count = 0;
            HyperealApi.GetPlayAreaVertexCount(ref count);
            if (count > 0)
            {
                float outer = 1f;
                float inner = outer - thickness;

                Vector3[] vertices = new Vector3[8];
                vertices[0] = new Vector3(inner, 0f, -inner);
                vertices[1] = new Vector3(-inner, 0f, -inner);
                vertices[2] = new Vector3(-inner, 0f, inner);
                vertices[3] = new Vector3(inner, 0f, inner);

                vertices[4] = new Vector3(outer, 0f, -outer);
                vertices[5] = new Vector3(-outer, 0f, -outer);
                vertices[6] = new Vector3(-outer, 0f, outer);
                vertices[7] = new Vector3(outer, 0f, outer);

                return vertices;
            }
            return null;
        }

        /// <summary>
        /// The GetPlayAreaBorderThickness returns the thickness of the drawn border for the given play area.
        /// </summary>
        /// <returns>The thickness of the drawn border.</returns>
        public override float GetPlayAreaBorderThickness()
        {
            return thickness;
        }

        /// <summary>
        /// The IsPlayAreaSizeCalibrated method returns whether the given play area size has been auto calibrated by external sensors.
        /// </summary>
        /// <returns>Returns true if the play area size has been auto calibrated and set by external sensors.</returns>
        public override bool IsPlayAreaSizeCalibrated()
        {
            return true;
        }

        /// <summary>
        /// The GetDrawAtRuntime method returns whether the given play area drawn border is being displayed.
        /// </summary>
        /// <returns>Returns true if the drawn border is being displayed.</returns>
        public override bool GetDrawAtRuntime()
        {
            return false;
        }

        /// <summary>
        /// The SetDrawAtRuntime method sets whether the given play area drawn border should be displayed at runtime.
        /// </summary>
        /// <param name="value">The state of whether the drawn border should be displayed or not.</param>
        public override void SetDrawAtRuntime(bool value)
        {
        }
#endif
    }
}