1 /******************************************************************************* 2 * Copyright 2011 See AUTHORS file. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 ******************************************************************************/ 16 17 package com.badlogic.gdx.tests; 18 19 import com.badlogic.gdx.Gdx; 20 import com.badlogic.gdx.tests.utils.GdxTest; 21 import com.badlogic.gdx.utils.TimeUtils; 22 23 public class DeltaTimeTest extends GdxTest { 24 25 long lastFrameTime; 26 27 @Override create()28 public void create () { 29 lastFrameTime = TimeUtils.nanoTime(); 30 } 31 32 @Override render()33 public void render () { 34 long frameTime = TimeUtils.nanoTime(); 35 float deltaTime = (frameTime - lastFrameTime) / 1000000000.0f; 36 lastFrameTime = frameTime; 37 38 Gdx.app.log("DeltaTimeTest", "delta: " + deltaTime + ", gdx delta: " + Gdx.graphics.getDeltaTime()); 39 } 40 } 41