/**
* Copyright (c) 2008-2012 Ardor Labs, Inc.
*
* This file is part of Ardor3D.
*
* Ardor3D is free software: you can redistribute it and/or modify it
* under the terms of its license which may be found in the accompanying
* LICENSE file or at <http://www.ardor3d.com/LICENSE>.
*/
package com.ardor3d.example.effect;
import com.ardor3d.example.ExampleBase;
import com.ardor3d.example.Purpose;
import com.ardor3d.extension.effect.water.ProjectedGrid;
import com.ardor3d.extension.effect.water.WaterHeightGenerator;
import com.ardor3d.framework.Canvas;
import com.ardor3d.image.Texture;
import com.ardor3d.image.TextureStoreFormat;
import com.ardor3d.input.Key;
import com.ardor3d.input.logical.InputTrigger;
import com.ardor3d.input.logical.KeyPressedCondition;
import com.ardor3d.input.logical.TriggerAction;
import com.ardor3d.input.logical.TwoInputStates;
import com.ardor3d.math.Vector3;
import com.ardor3d.renderer.Camera;
import com.ardor3d.renderer.queue.RenderBucketType;
import com.ardor3d.renderer.state.MaterialState;
import com.ardor3d.renderer.state.TextureState;
import com.ardor3d.renderer.state.MaterialState.ColorMaterial;
import com.ardor3d.scenegraph.Node;
import com.ardor3d.scenegraph.hint.CullHint;
import com.ardor3d.scenegraph.hint.LightCombineMode;
import com.ardor3d.ui.text.BasicText;
import com.ardor3d.util.ReadOnlyTimer;
import com.ardor3d.util.TextureManager;
/**
* A demonstration of the ProjectedGrid class; used to efficiently determine which vertices's in a terrain to draw.
*/
@Purpose(htmlDescriptionKey = "com.ardor3d.example.effect.ProjectedGridExample", //
thumbnailPath = "com/ardor3d/example/media/thumbnails/effect_ProjectedGridExample.jpg", //
maxHeapMemory = 64)
public class ProjectedGridExample extends ExampleBase {
/** The Projected Grid mesh */
private ProjectedGrid projectedGrid;
private final Camera externalCamera = new Camera();
private boolean animateExternalCamera = false;
/** Text fields used to present info about the example. */
private final BasicText _exampleInfo[] = new BasicText[4];
public static void main(final String[] args) {
start(ProjectedGridExample.class);
}
double counter = 0;
int frames = 0;
@Override
protected void updateExample(final ReadOnlyTimer timer) {
if (!animateExternalCamera) {
externalCamera.set(_canvas.getCanvasRenderer().getCamera());
} else {
final double time = _timer.getTimeInSeconds() * 0.5;
externalCamera.setLocation(0, Math.sin(time) * 100 + 110.0, 0);
externalCamera.lookAt(new Vector3(Math.sin(time * 1.5) * 100, 50, Math.cos(time) * 100), Vector3.UNIT_Y);
}
counter += timer.getTimePerFrame();
frames++;
if (counter > 1) {
final double fps = (frames / counter);
counter = 0;
frames = 0;
System.out.printf("%7.1f FPS\n", fps);
}
}
@Override
protected void initExample() {
_canvas.setTitle("ProjectedGrid - Example");
_controlHandle.setMoveSpeed(200);
_canvas.getCanvasRenderer().getCamera().setLocation(new Vector3(0, 100, 200));
_canvas.getCanvasRenderer().getCamera().setFrustumPerspective(
40.0,
(float) _canvas.getCanvasRenderer().getCamera().getWidth()
/ (float) _canvas.getCanvasRenderer().getCamera().getHeight(), 1.0, 5000);
_canvas.getCanvasRenderer().getCamera().lookAt(new Vector3(0, 0, 0), Vector3.UNIT_Y);
projectedGrid = new ProjectedGrid("ProjectedGrid", externalCamera, 100, 70, 0.01f, new WaterHeightGenerator(),
_timer);
_root.attachChild(projectedGrid);
_logicalLayer.registerTrigger(new InputTrigger(new KeyPressedCondition(Key.SPACE), new TriggerAction() {
public void perform(final Canvas source, final TwoInputStates inputStates, final double tpf) {
projectedGrid.setFreezeUpdate(!projectedGrid.isFreezeUpdate());
updateText();
}
}));
_logicalLayer.registerTrigger(new InputTrigger(new KeyPressedCondition(Key.ONE), new TriggerAction() {
public void perform(final Canvas source, final TwoInputStates inputStates, final double tpf) {
projectedGrid.setNrUpdateThreads(projectedGrid.getNrUpdateThreads() - 1);
updateText();
}
}));
_logicalLayer.registerTrigger(new InputTrigger(new KeyPressedCondition(Key.TWO), new TriggerAction() {
public void perform(final Canvas source, final TwoInputStates inputStates, final double tpf) {
projectedGrid.setNrUpdateThreads(projectedGrid.getNrUpdateThreads() + 1);
updateText();
}
}));
_logicalLayer.registerTrigger(new InputTrigger(new KeyPressedCondition(Key.THREE), new TriggerAction() {
public void perform(final Canvas source, final TwoInputStates inputStates, final double tpf) {
projectedGrid.setDrawDebug(!projectedGrid.isDrawDebug());
updateText();
}
}));
_logicalLayer.registerTrigger(new InputTrigger(new KeyPressedCondition(Key.FOUR), new TriggerAction() {
public void perform(final Canvas source, final TwoInputStates inputStates, final double tpf) {
projectedGrid.setDrawDebug(true);
animateExternalCamera = !animateExternalCamera;
updateText();
}
}));
final TextureState ts = new TextureState();
ts.setEnabled(true);
ts.setTexture(TextureManager.load("images/ardor3d_white_256.jpg", Texture.MinificationFilter.Trilinear,
TextureStoreFormat.GuessCompressedFormat, true));
_root.setRenderState(ts);
final MaterialState ms = new MaterialState();
ms.setColorMaterial(ColorMaterial.Diffuse);
_root.setRenderState(ms);
_root.getSceneHints().setCullHint(CullHint.Never);
// Setup textfields for presenting example info.
final Node textNodes = new Node("Text");
_root.attachChild(textNodes);
textNodes.getSceneHints().setRenderBucketType(RenderBucketType.Ortho);
textNodes.getSceneHints().setLightCombineMode(LightCombineMode.Off);
final double infoStartY = _canvas.getCanvasRenderer().getCamera().getHeight() / 2;
for (int i = 0; i < _exampleInfo.length; i++) {
_exampleInfo[i] = BasicText.createDefaultTextLabel("Text", "", 16);
_exampleInfo[i].setTranslation(new Vector3(10, infoStartY - i * 20, 0));
textNodes.attachChild(_exampleInfo[i]);
}
textNodes.updateGeometricState(0.0);
updateText();
}
/**
* Update text information.
*/
private void updateText() {
_exampleInfo[0].setText("[1/2] Number of update threads: " + projectedGrid.getNrUpdateThreads());
_exampleInfo[1].setText("[3] Draw debug frustums: " + projectedGrid.isDrawDebug());
_exampleInfo[2].setText("[4] Animate external camera: " + animateExternalCamera);
_exampleInfo[3].setText("[SPACE] Freeze update: " + projectedGrid.isFreezeUpdate());
}
}