f2c91eb836
* Reduces checkstyle errors in delegation * Reduces checkstyle errors in dependency-injection * Reduces checkstyle errors in dirty-flag * Reduces checkstyle errors in double-buffer * Reduces checkstyle errors in double-checked-locking * Reduces checkstyle errors in double-dispatch
87 lines
2.6 KiB
Java
87 lines
2.6 KiB
Java
/*
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* The MIT License
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* Copyright © 2014-2019 Ilkka Seppälä
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package com.iluwatar.doublebuffer;
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import java.util.List;
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import org.apache.commons.lang3.tuple.Pair;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* Scene class. Render the output frame.
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*/
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public class Scene {
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private static final Logger LOGGER = LoggerFactory.getLogger(Scene.class);
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private Buffer[] frameBuffers;
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private int current;
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private int next;
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/**
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* Constructor of Scene.
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*/
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public Scene() {
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frameBuffers = new FrameBuffer[2];
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frameBuffers[0] = new FrameBuffer();
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frameBuffers[1] = new FrameBuffer();
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current = 0;
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next = 1;
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}
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/**
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* Draw the next frame.
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*
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* @param coordinateList list of pixels of which the color should be black
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*/
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public void draw(List<Pair<Integer, Integer>> coordinateList) {
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LOGGER.info("Start drawing next frame");
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LOGGER.info("Current buffer: " + current + " Next buffer: " + next);
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frameBuffers[next].clearAll();
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for (Pair<Integer, Integer> coordinate : coordinateList) {
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var x = coordinate.getKey();
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var y = coordinate.getValue();
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frameBuffers[next].draw(x, y);
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}
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LOGGER.info("Swap current and next buffer");
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swap();
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LOGGER.info("Finish swapping");
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LOGGER.info("Current buffer: " + current + " Next buffer: " + next);
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}
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public Buffer getBuffer() {
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LOGGER.info("Get current buffer: " + current);
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return frameBuffers[current];
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}
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private void swap() {
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current = current ^ next;
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next = current ^ next;
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current = current ^ next;
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}
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}
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