Java tutorial
/******************************************************************************* * Copyright 2011 See AUTHORS file. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. ******************************************************************************/ package com.badlogic.gdx.backends.headless.mock.graphics; import com.badlogic.gdx.Graphics; import com.badlogic.gdx.graphics.GL20; import com.badlogic.gdx.graphics.GL30; /** The headless backend does its best to mock elements. This is intended to make code-sharing between * server and client as simple as possible. */ public class MockGraphics implements Graphics { long frameId = -1; float deltaTime = 0; long frameStart = 0; int frames = 0; int fps; long lastTime = System.nanoTime(); @Override public boolean isGL30Available() { return false; } @Override public GL20 getGL20() { return null; } @Override public GL30 getGL30() { return null; } @Override public int getWidth() { return 0; } @Override public int getHeight() { return 0; } @Override public long getFrameId() { return frameId; } @Override public float getDeltaTime() { return deltaTime; } @Override public float getRawDeltaTime() { return 0; } @Override public int getFramesPerSecond() { return 0; } @Override public GraphicsType getType() { return GraphicsType.Mock; } @Override public float getPpiX() { return 0; } @Override public float getPpiY() { return 0; } @Override public float getPpcX() { return 0; } @Override public float getPpcY() { return 0; } @Override public float getDensity() { return 0; } @Override public boolean supportsDisplayModeChange() { return false; } @Override public DisplayMode[] getDisplayModes() { return new DisplayMode[0]; } @Override public DisplayMode getDesktopDisplayMode() { return null; } @Override public boolean setDisplayMode(DisplayMode displayMode) { return false; } @Override public boolean setDisplayMode(int width, int height, boolean fullscreen) { return false; } @Override public void setTitle(String title) { } @Override public void setVSync(boolean vsync) { } @Override public BufferFormat getBufferFormat() { return null; } @Override public boolean supportsExtension(String extension) { return false; } @Override public void setContinuousRendering(boolean isContinuous) { } @Override public boolean isContinuousRendering() { return false; } @Override public void requestRendering() { } @Override public boolean isFullscreen() { return false; } public void updateTime() { long time = System.nanoTime(); deltaTime = (time - lastTime) / 1000000000.0f; lastTime = time; if (time - frameStart >= 1000000000) { fps = frames; frames = 0; frameStart = time; } frames++; } public void incrementFrameId() { frameId++; } }