1// Copyright (C) 2023 The Android Open Source Project 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15// Restrict the value of a number between two values (inclusive) 16export function clamp(val: number, lower: number, upper: number): number { 17 return Math.max(lower, Math.min(upper, val)); 18} 19 20const FLOAT_EPSILON = 1e-9; 21 22// Returns true if two floats are close enough to be considered equal. 23export function floatEqual(a: number, b: number, eps = FLOAT_EPSILON): boolean { 24 return Math.abs(a - b) < eps; 25} 26