58 lines
1.7 KiB
Java
58 lines
1.7 KiB
Java
/*
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* Copyright (C) 2016 The Android Open Source Project
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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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*/
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package com.android.dialer.common;
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/** Utility class for common math operations */
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public class MathUtil {
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/**
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* Interpolates between two integer values based on percentage.
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*
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* @param begin Begin value
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* @param end End value
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* @param percent Percentage value, between 0 and 1
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* @return Interpolated result
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*/
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public static int lerp(int begin, int end, float percent) {
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return (int) (begin * (1 - percent) + end * percent);
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}
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/**
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* Interpolates between two float values based on percentage.
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*
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* @param begin Begin value
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* @param end End value
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* @param percent Percentage value, between 0 and 1
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* @return Interpolated result
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*/
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public static float lerp(float begin, float end, float percent) {
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return begin * (1 - percent) + end * percent;
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}
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/**
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* Clamps a value between two bounds inclusively.
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*
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* @param value Value to be clamped
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* @param min Lower bound
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* @param max Upper bound
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* @return Clamped value
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*/
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public static float clamp(float value, float min, float max) {
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return Math.max(min, Math.min(value, max));
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}
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}
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