com.akjava.gwt.threetest.client.SimpleAnimation.java Source code

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Here is the source code for com.akjava.gwt.threetest.client.SimpleAnimation.java

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/*
 * 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 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.Vector3;
import com.akjava.gwt.three.client.extras.ImageUtils;
import com.akjava.gwt.three.client.extras.loaders.JSONLoader;
import com.akjava.gwt.three.client.extras.loaders.JSONLoader.LoadHandler;
import com.akjava.gwt.three.client.lights.Light;
import com.akjava.gwt.three.client.materials.Material;
import com.akjava.gwt.three.client.objects.MorphAnimMesh;
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 SimpleAnimation extends AbstractDemo {

    private MorphAnimMesh animMesh;
    private long last;

    @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);

        final Scene scene = THREE.Scene();

        final Camera camera = THREE.PerspectiveCamera(35, (double) width / height, .1, 10000);
        camera.getPosition().set(0, 300, 0);
        final Vector3 target = THREE.Vector3(0, 150, 0);
        scene.add(camera);

        JSONLoader loader = THREE.JSONLoader();

        loader.load("models/animation.js", new LoadHandler() {

            @Override
            public void loaded(Geometry geometry) {
                Material material = THREE.MeshLambertMaterial().color(0xffffff).morphTargets(true)
                        .map(ImageUtils.loadTexture("img/uv.png")).build();
                animMesh = THREE.MorphAnimMesh(geometry, material);

                animMesh.setDuration(1000 * 5); //5sec
                animMesh.setMirrordLoop(true);//animation move forward and back

                animMesh.getScale().set(10, 10, 10);
                scene.add(animMesh);
                GWT.log("loaded:");
            }
        });

        final Light light = THREE.DirectionalLight(0xeeeeee, 2);
        light.setPosition(1, 1, 1);
        scene.add(light);

        scene.add(THREE.AmbientLight(0xcccccc));

        final int radius = 600;

        last = System.currentTimeMillis();
        Timer timer = new Timer() {
            double theta;

            public void run() {
                try {
                    theta += 0.2;

                    camera.getPosition().setX(radius * Math.sin(theta * Math.PI / 360));
                    camera.getPosition().setZ(radius * Math.cos(theta * Math.PI / 360));
                    camera.lookAt(target);

                    if (animMesh != null) {
                        //TODO clock
                        long tmp = System.currentTimeMillis();
                        long delta = tmp - last;
                        animMesh.updateAnimation(delta);

                        last = tmp;
                    }

                    renderer.render(scene, camera);
                    MainWidget.stats.update();
                } catch (Exception e) {
                    GWT.log(e.getMessage());
                }
            }
        };

        startTimer(timer);
    }

    @Override
    public void stop() {
        timer.cancel();
    }

    @Override
    public String getName() {
        return "Simple Animation";
    }

    @Override
    public String getHowToHtml() {
        return Bundles.INSTANCE.howto_default().getText();
    }
}