package com.badlogic.gdx.tests.g3d;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.assets.AssetDescriptor;
import com.badlogic.gdx.assets.AssetErrorListener;
import com.badlogic.gdx.assets.loaders.TextureLoader.TextureParameter;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.ParticleEmitter.SpawnEllipseSide;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.graphics.g3d.Attribute;
import com.badlogic.gdx.graphics.g3d.Environment;
import com.badlogic.gdx.graphics.g3d.Material;
import com.badlogic.gdx.graphics.g3d.Model;
import com.badlogic.gdx.graphics.g3d.ModelBatch;
import com.badlogic.gdx.graphics.g3d.ModelInstance;
import com.badlogic.gdx.graphics.g3d.attributes.BlendingAttribute;
import com.badlogic.gdx.graphics.g3d.attributes.ColorAttribute;
import com.badlogic.gdx.graphics.g3d.environment.DirectionalLight;
import com.badlogic.gdx.graphics.g3d.particles.ParticleController;
import com.badlogic.gdx.graphics.g3d.particles.batches.BillboardParticleBatch;
import com.badlogic.gdx.graphics.g3d.particles.emitters.RegularEmitter;
import com.badlogic.gdx.graphics.g3d.particles.influencers.ColorInfluencer;
import com.badlogic.gdx.graphics.g3d.particles.influencers.DynamicsInfluencer;
import com.badlogic.gdx.graphics.g3d.particles.influencers.DynamicsModifier;
import com.badlogic.gdx.graphics.g3d.particles.influencers.DynamicsModifier.BrownianAcceleration;
import com.badlogic.gdx.graphics.g3d.particles.influencers.RegionInfluencer;
import com.badlogic.gdx.graphics.g3d.particles.influencers.ScaleInfluencer;
import com.badlogic.gdx.graphics.g3d.particles.influencers.SpawnInfluencer;
import com.badlogic.gdx.graphics.g3d.particles.influencers.ColorInfluencer.Single;
import com.badlogic.gdx.graphics.g3d.particles.renderers.BillboardRenderer;
import com.badlogic.gdx.graphics.g3d.particles.values.PointSpawnShapeValue;
import com.badlogic.gdx.math.Matrix4;
import com.badlogic.gdx.math.Quaternion;
import com.badlogic.gdx.math.Vector3;
import com.badlogic.gdx.scenes.scene2d.Action;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.actions.Actions;
import com.badlogic.gdx.scenes.scene2d.ui.Label;
import com.badlogic.gdx.scenes.scene2d.ui.Skin;
import com.badlogic.gdx.scenes.scene2d.ui.Table;
import com.badlogic.gdx.utils.Array;
/** @author Inferno */
public class ParticleControllerTest extends BaseG3dTest{
public static final String DEFAULT_PARTICLE = "data/pre_particle.png",
DEFAULT_SKIN ="data/uiskin.json";
Quaternion tmpQuaternion = new Quaternion();
Matrix4 tmpMatrix = new Matrix4(), tmpMatrix4 = new Matrix4();
Vector3 tmpVector = new Vector3();
private class RotationAction extends Action{
private ParticleController emitter;
Vector3 axis;
float angle;
public RotationAction (ParticleController emitter, Vector3 axis, float angle) {
this.emitter = emitter;
this.axis = axis;
this.angle = angle;
}
@Override
public boolean act (float delta) {
emitter.getTransform(tmpMatrix);
tmpQuaternion.set(axis, angle*delta).toMatrix(tmpMatrix4.val);
tmpMatrix4.mul(tmpMatrix);
emitter.setTransform(tmpMatrix4);
return false;
}
}
//Simulation
Array<ParticleController> emitters;
//Rendering
Environment environment;
BillboardParticleBatch billboardParticleBatch;
//UI
Stage ui;
Label fpsLabel;
StringBuilder builder;
@Override
public void create () {
super.create();
emitters = new Array<ParticleController>();
assets.load(DEFAULT_PARTICLE, Texture.class);
assets.load(DEFAULT_SKIN, Skin.class);
loading = true;
environment = new Environment();
environment.set(new ColorAttribute(ColorAttribute.AmbientLight, 0f, 0f, 0.1f, 1f));
environment.add(new DirectionalLight().set(1f, 1f, 1f, 0, -0.5f, -1 ));
billboardParticleBatch = new BillboardParticleBatch();
billboardParticleBatch.setCamera(cam);
ui = new Stage();
builder = new StringBuilder();
}
@Override
public void resize (int width, int height) {
super.resize(width, height);
ui.getViewport().setWorldSize(width, height);
ui.getViewport().update(width, height, true);
}
@Override
protected void onLoaded () {
Texture particleTexture = assets.get(DEFAULT_PARTICLE);
billboardParticleBatch.setTexture(assets.get(DEFAULT_PARTICLE, Texture.class));
//X
addEmitter(new float[] {1, 0.12156863f, 0.047058824f}, particleTexture,
tmpVector.set(5,5,0), Vector3.X, 360);
//Y
addEmitter(new float[] {0.12156863f, 1, 0.047058824f}, particleTexture,
tmpVector.set(0,5,-5), Vector3.Y, -360);
//Z
addEmitter(new float[] {0.12156863f, 0.047058824f, 1}, particleTexture,
tmpVector.set(0,5,5), Vector3.Z, -360);
setupUI();
}
private void addEmitter( float[] colors, Texture particleTexture,
Vector3 translation,
Vector3 actionAxis, float actionRotation){
ParticleController controller = createBillboardController(colors, particleTexture);
controller.init();
controller.start();
emitters.add(controller);
controller.translate(translation);
ui.addAction(new RotationAction(controller, actionAxis, actionRotation));
}
private void setupUI () {
Skin skin = assets.get(DEFAULT_SKIN);
Table table = new Table();
table.setFillParent(true);
table.top().left().add(new Label("FPS ", skin)).left();
table.add(fpsLabel = new Label("", skin)).left().expandX().row();
ui.addActor(table);
}
private ParticleController createBillboardController (float[] colors, Texture particleTexture) {
//Emission
RegularEmitter emitter = new RegularEmitter();
emitter.getDuration().setLow(3000);
emitter.getEmission().setHigh(2900);
emitter.getLife().setHigh(1000);
emitter.setMaxParticleCount(3000);
//Spawn
PointSpawnShapeValue pointSpawnShapeValue = new PointSpawnShapeValue();
pointSpawnShapeValue.xOffsetValue.setLow(0, 1f);
pointSpawnShapeValue.xOffsetValue.setActive(true);
pointSpawnShapeValue.yOffsetValue.setLow(0, 1f);
pointSpawnShapeValue.yOffsetValue.setActive(true);
pointSpawnShapeValue.zOffsetValue.setLow(0, 1f);
pointSpawnShapeValue.zOffsetValue.setActive(true);
SpawnInfluencer spawnSource = new SpawnInfluencer(pointSpawnShapeValue);
//Scale
ScaleInfluencer scaleInfluencer = new ScaleInfluencer();
scaleInfluencer.value.setTimeline(new float[]{0, 1});
scaleInfluencer.value.setScaling(new float[]{1, 0});
scaleInfluencer.value.setLow(0);
scaleInfluencer.value.setHigh(1);
//Color
ColorInfluencer.Single colorInfluencer = new ColorInfluencer.Single();
colorInfluencer.colorValue.setColors(new float[] {colors[0], colors[1], colors[2], 0,0,0});
colorInfluencer.colorValue.setTimeline(new float[] {0, 1});
colorInfluencer.alphaValue.setHigh(1);
colorInfluencer.alphaValue.setTimeline(new float[] {0, 0.5f, 0.8f, 1});
colorInfluencer.alphaValue.setScaling(new float[] {0, 0.15f, 0.5f, 0});
//Dynamics
DynamicsInfluencer dynamicsInfluencer = new DynamicsInfluencer();
BrownianAcceleration modifier = new BrownianAcceleration();
modifier.strengthValue.setTimeline(new float[]{0,1});
modifier.strengthValue.setScaling(new float[]{0,1});
modifier.strengthValue.setHigh(80);
modifier.strengthValue.setLow(1, 5);
dynamicsInfluencer.velocities.add(modifier);
return new ParticleController("Billboard Controller", emitter, new BillboardRenderer(billboardParticleBatch),
new RegionInfluencer.Single(particleTexture),
spawnSource,
scaleInfluencer,
colorInfluencer,
dynamicsInfluencer
);
}
@Override
protected void render (ModelBatch batch, Array<ModelInstance> instances) {
if(emitters.size > 0){
//Update
float delta = Gdx.graphics.getDeltaTime();
builder.delete(0, builder.length());
builder.append(Gdx.graphics.getFramesPerSecond());
fpsLabel.setText(builder);
ui.act(delta);
billboardParticleBatch.begin();
for (ParticleController controller : emitters){
controller.update();
controller.draw();
}
billboardParticleBatch.end();
batch.render(billboardParticleBatch, environment);
}
batch.render(instances, environment);
ui.draw();
}
}