76 lines
2.8 KiB
C#
76 lines
2.8 KiB
C#
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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* All rights reserved.
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*
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* Licensed under the Oculus SDK License Agreement (the "License");
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* you may not use the Oculus SDK except in compliance with the License,
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* which is provided at the time of installation or download, or which
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* otherwise accompanies this software in either electronic or hard copy form.
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*
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* You may obtain a copy of the License at
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*
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* https://developer.oculus.com/licenses/oculussdk/
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*
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* Unless required by applicable law or agreed to in writing, the Oculus SDK
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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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*/
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// @lint-ignore-every LICENSELINT
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using System;
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using UnityEngine;
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namespace Oculus.Haptics
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{
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/// <summary>
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/// The controller to play haptics on.
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/// </summary>
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public enum Controller
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{
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Left,
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Right,
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Both
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}
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internal static class Utils
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{
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/// <summary>
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/// Converts Controller type to Ffi.Controller type.
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/// </summary>
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///
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/// <param name="controller">Controller type.</param>
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/// <exception cref="ArgumentException">If an invalid Controller type was passed in.</exception>
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internal static Ffi.Controller ControllerToFfiController(Controller controller)
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{
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return controller switch
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{
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Controller.Left => Ffi.Controller.Left,
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Controller.Right => Ffi.Controller.Right,
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Controller.Both => Ffi.Controller.Both,
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_ => throw new ArgumentException($"Invalid controller selected: {controller}.")
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};
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}
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/// <summary>
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/// Linearly scale a value from its "position" in a source range to an equivalent value in a target range.
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/// Does not impose clamping within the range, that is, when <c>input</c> is outside the input range it
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/// will map to an appropriate value outside the output range.
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/// </summary>
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///
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/// <param name="input">The value to be scaled.</param>
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/// <param name="inMin">The lower limit of the source range.</param>
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/// <param name="inMax">The upper limit of the source range.</param>
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/// <param name="outMin">The lower limit of the target range.</param>
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/// <param name="outMax">The upper limit of the target range.</param>
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internal static float Map(int input, int inMin, int inMax, int outMin, int outMax)
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{
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float numerator = (input - inMin) * (outMax - outMin);
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float denominator = inMax - inMin;
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return (numerator / denominator) + outMin;
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}
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}
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}
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