Java tutorial
/* * Copyright (C) 2011 aki@akjava.com * * 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.akjava.gwt.threetest.client; import java.util.ArrayList; import java.util.List; import com.akjava.gwt.three.client.THREE; import com.akjava.gwt.three.client.cameras.Camera; import com.akjava.gwt.three.client.core.Geometry; import com.akjava.gwt.three.client.core.Vertex; import com.akjava.gwt.three.client.extras.ImageUtils; import com.akjava.gwt.three.client.lights.Light; import com.akjava.gwt.three.client.materials.Material; import com.akjava.gwt.three.client.objects.Mesh; import com.akjava.gwt.three.client.objects.ParticleSystem; import com.akjava.gwt.three.client.renderers.WebGLRenderer; import com.akjava.gwt.three.client.scenes.Scene; import com.akjava.gwt.threetest.client.resources.Bundles; import com.google.gwt.core.client.GWT; import com.google.gwt.user.client.Timer; import com.google.gwt.user.client.ui.FocusPanel; public class ExplotionDemo2 extends AbstractDemo { private Timer timer; private Mesh mesh; //original is here //www.airtightinteractive.com/demos/cubes_three/ @Override public void start(final WebGLRenderer renderer, final int width, final int height, FocusPanel panel) { if (timer != null) { timer.cancel(); timer = null; } renderer.setClearColorHex(0x333333, 1); renderer.setShadowMapEnabled(true); final Camera camera = THREE.PerspectiveCamera(35, (double) width / height, .1, 10000); camera.getPosition().set(0, 0, 0); final Scene scene = THREE.Scene(); final Light light = THREE.SpotLight(0xffffff); light.setPosition(100, 200, 150);//light.setPosition(5,5, 5); light.setCastShadow(true); scene.add(light); //scene.add(THREE.AmbientLight(0x888888)); final Mesh root = THREE.Mesh(THREE.PlaneGeometry(36, 36), THREE.MeshLambertMaterial().color(0x00ee88).build()); scene.add(root); mesh = root; final Geometry particles = THREE.Geometry(); final List<Block> blocks = new ArrayList<Block>(); for (int i = 0; i < 3000; i++) { Block block = new Block(particles); blocks.add(block); } Material material = THREE.ParticleBasicMaterial().color(0xff0000).size(2) .map(ImageUtils.loadTexture("img/particle.png")).blending(THREE.AdditiveBlending).transparent(true) .build(); final ParticleSystem particleSystem = THREE.ParticleSystem(particles, material); particleSystem.setSortParticles(true); root.add(particleSystem); root.setRotation(Math.toDegrees(45), Math.toDegrees(45), Math.toDegrees(-45)); MainWidget.cameraRotation.setX(-45); MainWidget.cameraRotation.setZ(45); // MainWidget.cameraMove.setZ(-20); MainWidget.cameraMove.setZ(75); // MainWidget.cameraRotation.setX(-90); timer = new Timer() { public void run() { MainWidget.stats.update(); try { for (Block block : blocks) { block.update(); } camera.setPosition(MainWidget.cameraMove.getX(), MainWidget.cameraMove.getY(), MainWidget.cameraMove.getZ()); mesh.setRotation(Math.toRadians(MainWidget.cameraRotation.getX()), Math.toRadians(MainWidget.cameraRotation.getY()), Math.toRadians(MainWidget.cameraRotation.getZ())); particles.setDirtyVertices(true); //cancel(); if (mesh != null) { //mesh.getRotation().incrementZ(0.02); //mesh.getRotation().incrementZ(0.02); } renderer.render(scene, camera); } catch (Exception e) { GWT.log(e.getMessage()); } } }; //timer.schedule(2000); timer.scheduleRepeating(1000 / 60); } @Override public void stop() { timer.cancel(); } @Override public String getName() { return "Explotion2"; } public class Block { double maxSize = 5; double minSize = 0.8; boolean smoke; public Block(Geometry parentMesh) { vertex = THREE.Vertex(THREE.Vector3(0, 0, 0)); //Material[] ms=new Material[cube.faces().length()]; if (Math.random() < 0.5) { //orange /* for(int i=0;i<cube.faces().length();i++){ Material mt=THREE.MeshBasicMaterial().color((int)Math.floor( Math.random() * 128 + 128), (int)Math.floor( Math.random() * 66*2 ), 0).build(); cube.faces().get(i).materials().set(0, mt); }*/ } else { //gray smoke = true; /* for(int i=0;i<cube.faces().length();i++){ int brightness = (int) Math.floor( Math.random() * 216 + 40); Material mt=THREE.MeshBasicMaterial().color(brightness, brightness, brightness).build(); cube.faces().get(i).materials().set(0, mt); }*/ } parentMesh.vertices().push(vertex); //mesh = THREE.Mesh(cube, THREE.MeshFaceMaterial()); //parentMesh.add(mesh); reset(); } double MAX_SPEED = 0.2; //double MAX_ROT=0.1; double xd, yd, zd; //double xrd,zrd; int ticks; private Vertex vertex; public void reset() { vertex.getPosition().set((maxSize * Math.random() + minSize) / 10, (maxSize * Math.random() + minSize) / 10, (maxSize * Math.random() + minSize) / 10); //mesh.setRotation(Math.random()*360, 0, Math.random()*360); //xrd=Math.random()*MAX_ROT*2 - MAX_ROT; //zrd=Math.random()*MAX_ROT*2 - MAX_ROT; xd = Math.random() * MAX_SPEED * 2 - MAX_SPEED; yd = Math.random() * MAX_SPEED * 2 - MAX_SPEED; zd = Math.random() * MAX_SPEED * 2 - MAX_SPEED; ticks = 0; } public void update() { if (smoke) { vertex.getPosition().incrementX(xd / 3); vertex.getPosition().incrementY(yd / 3); vertex.getPosition().incrementZ(zd); } else { vertex.getPosition().incrementX(xd / 5); vertex.getPosition().incrementY(yd / 5); vertex.getPosition().incrementZ(zd / 10); } // mesh.getRotation().incrementX(xrd); // mesh.getRotation().incrementZ(zrd); ticks++; if (ticks > 200) { reset(); } } } @Override public String getHowToHtml() { return Bundles.INSTANCE.howto_default().getText(); } }