67 lines
2.6 KiB
C#
67 lines
2.6 KiB
C#
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// Copyright 2016 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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using UnityEngine;
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using UnityEngine.EventSystems;
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using System.Collections.Generic;
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/// This script provides shared functionality used by all Gvr raycasters.
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public abstract class GvrBasePointerRaycaster : BaseRaycaster {
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private GvrBasePointer.PointerRay lastRay;
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protected GvrBasePointer.RaycastMode CurrentRaycastModeForHybrid { get; private set; }
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protected GvrBasePointerRaycaster() {
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}
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public GvrBasePointer.PointerRay GetLastRay() {
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return lastRay;
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}
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public override void Raycast(PointerEventData eventData, List<RaycastResult> resultAppendList) {
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GvrBasePointer pointer = GvrPointerInputModule.Pointer;
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if (pointer == null || !pointer.IsAvailable) {
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return;
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}
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if (pointer.raycastMode == GvrBasePointer.RaycastMode.Hybrid) {
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RaycastHybrid(pointer, eventData, resultAppendList);
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} else {
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RaycastDefault(pointer, eventData, resultAppendList);
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}
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}
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protected abstract bool PerformRaycast(GvrBasePointer.PointerRay pointerRay, float radius,
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PointerEventData eventData, List<RaycastResult> resultAppendList);
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private void RaycastHybrid(GvrBasePointer pointer, PointerEventData eventData, List<RaycastResult> resultAppendList) {
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CurrentRaycastModeForHybrid = GvrBasePointer.RaycastMode.Direct;
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lastRay = GvrBasePointer.CalculateHybridRay(pointer, CurrentRaycastModeForHybrid);
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float radius = pointer.CurrentPointerRadius;
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bool foundHit = PerformRaycast(lastRay, radius, eventData, resultAppendList);
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if (!foundHit) {
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CurrentRaycastModeForHybrid = GvrBasePointer.RaycastMode.Camera;
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lastRay = GvrBasePointer.CalculateHybridRay(pointer, CurrentRaycastModeForHybrid);
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PerformRaycast(lastRay, radius, eventData, resultAppendList);
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}
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}
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private void RaycastDefault(GvrBasePointer pointer, PointerEventData eventData, List<RaycastResult> resultAppendList) {
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lastRay = GvrBasePointer.CalculateRay(pointer, pointer.raycastMode);
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float radius = pointer.CurrentPointerRadius;
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PerformRaycast(lastRay, radius, eventData, resultAppendList);
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}
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}
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