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29 lines
1.0 KiB
Java
29 lines
1.0 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.gecko;
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import java.lang.Math;
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import android.graphics.PointF;
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public final class FloatUtils {
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public static boolean fuzzyEquals(float a, float b) {
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return (Math.abs(a - b) < 1e-6);
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}
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public static boolean fuzzyEquals(PointF a, PointF b) {
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return fuzzyEquals(a.x, b.x) && fuzzyEquals(a.y, b.y);
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}
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/*
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* Returns the value that represents a linear transition between `from` and `to` at time `t`,
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* which is on the scale [0, 1). Thus with t = 0.0f, this returns `from`; with t = 1.0f, this
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* returns `to`; with t = 0.5f, this returns the value halfway from `from` to `to`.
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*/
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public static float interpolate(float from, float to, float t) {
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return from + (to - from) * t;
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}
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}
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