/*******************************************************************************
* Copyright 2014 See AUTHORS file.
*
* 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.badlogic.gdx.ai.tests.steer.box2d.tests;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.ai.steer.behaviors.Wander;
import com.badlogic.gdx.ai.tests.SteeringBehaviorsTest;
import com.badlogic.gdx.ai.tests.steer.box2d.Box2dSteeringEntity;
import com.badlogic.gdx.ai.tests.steer.box2d.Box2dSteeringTest;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer.ShapeType;
import com.badlogic.gdx.math.MathUtils;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.scenes.scene2d.InputEvent;
import com.badlogic.gdx.scenes.scene2d.ui.CheckBox;
import com.badlogic.gdx.scenes.scene2d.ui.Label;
import com.badlogic.gdx.scenes.scene2d.ui.Slider;
import com.badlogic.gdx.scenes.scene2d.ui.Table;
import com.badlogic.gdx.scenes.scene2d.utils.ChangeListener;
import com.badlogic.gdx.scenes.scene2d.utils.ClickListener;
/** A class to test and experiment with the {@link Wander} behavior.
*
* @autor davebaol */
public class Box2dWanderTest extends Box2dSteeringTest {
boolean drawDebug;
ShapeRenderer shapeRenderer;
Box2dSteeringEntity character;
Wander<Vector2> wanderSB;
private Batch spriteBatch;
public Box2dWanderTest (SteeringBehaviorsTest container) {
super(container, "Wander");
}
@Override
public void create () {
super.create();
drawDebug = true;
shapeRenderer = new ShapeRenderer();
spriteBatch = new SpriteBatch();
// Create character
character = createSteeringEntity(world, container.greenFish, true);
character.setMaxLinearAcceleration(10);
character.setMaxLinearSpeed(3);
character.setMaxAngularAcceleration(.5f); // greater than 0 because independent facing is enabled
character.setMaxAngularSpeed(5);
this.wanderSB = new Wander<Vector2>(character) //
.setFaceEnabled(true) // We want to use Face internally (independent facing is on)
.setAlignTolerance(0.001f) // Used by Face
.setDecelerationRadius(1) // Used by Face
.setTimeToTarget(0.1f) // Used by Face
.setWanderOffset(3) //
.setWanderOrientation(3) //
.setWanderRadius(1) //
.setWanderRate(MathUtils.PI2 * 4);
character.setSteeringBehavior(wanderSB);
Table detailTable = new Table(container.skin);
detailTable.row();
addMaxLinearAccelerationController(detailTable, character, 0, 100, 1);
detailTable.row();
addMaxAngularAccelerationController(detailTable, character, 0, 10, .01f);
detailTable.row();
addMaxAngularSpeedController(detailTable, character, 0, 20, .5f);
detailTable.row();
final Label labelWanderOffset = new Label("Wander Offset [" + wanderSB.getWanderOffset() + "]", container.skin);
detailTable.add(labelWanderOffset);
detailTable.row();
Slider wanderOffset = new Slider(0, 10, .2f, false, container.skin);
wanderOffset.setValue(wanderSB.getWanderOffset());
wanderOffset.addListener(new ChangeListener() {
@Override
public void changed (ChangeEvent event, Actor actor) {
Slider slider = (Slider)actor;
wanderSB.setWanderOffset(slider.getValue());
labelWanderOffset.setText("Wander Offset [" + slider.getValue() + "]");
}
});
detailTable.add(wanderOffset);
detailTable.row();
final Label labelWanderRadius = new Label("Wander Radius [" + wanderSB.getWanderRadius() + "]", container.skin);
detailTable.add(labelWanderRadius);
detailTable.row();
Slider wanderRadius = new Slider(0, 5, .2f, false, container.skin);
wanderRadius.setValue(wanderSB.getWanderRadius());
wanderRadius.addListener(new ChangeListener() {
@Override
public void changed (ChangeEvent event, Actor actor) {
Slider slider = (Slider)actor;
wanderSB.setWanderRadius(slider.getValue());
labelWanderRadius.setText("Wander Radius [" + slider.getValue() + "]");
}
});
detailTable.add(wanderRadius);
detailTable.row();
final Label labelWanderRate = new Label("Wander Rate [" + wanderSB.getWanderRate() + "]", container.skin);
detailTable.add(labelWanderRate);
detailTable.row();
Slider wanderRate = new Slider(0, MathUtils.PI2 * 10, MathUtils.degreesToRadians, false, container.skin);
wanderRate.setValue(wanderSB.getWanderRate());
wanderRate.addListener(new ChangeListener() {
@Override
public void changed (ChangeEvent event, Actor actor) {
Slider slider = (Slider)actor;
wanderSB.setWanderRate(slider.getValue());
labelWanderRate.setText("Wander Rate [" + slider.getValue() + "]");
}
});
detailTable.add(wanderRate);
detailTable.row();
addSeparator(detailTable);
detailTable.row();
CheckBox debug = new CheckBox("Draw circle", container.skin);
debug.setChecked(drawDebug);
debug.addListener(new ClickListener() {
@Override
public void clicked (InputEvent event, float x, float y) {
CheckBox checkBox = (CheckBox)event.getListenerActor();
drawDebug = checkBox.isChecked();
}
});
detailTable.add(debug);
detailTable.row();
addSeparator(detailTable);
detailTable.row();
addMaxLinearSpeedController(detailTable, character);
detailWindow = createDetailWindow(detailTable);
}
@Override
public void update () {
super.update();
// Update the character
character.update(Gdx.graphics.getDeltaTime());
}
@Override
public void draw () {
// Draw the character
spriteBatch.begin();
character.draw(spriteBatch);
spriteBatch.end();
if (drawDebug) {
// Draw circle
shapeRenderer.begin(ShapeType.Line);
shapeRenderer.setColor(0, 1, 0, 1);
int wanderCenterX = Box2dSteeringTest.metersToPixels(wanderSB.getWanderCenter().x);
int wanderCenterY = Box2dSteeringTest.metersToPixels(wanderSB.getWanderCenter().y);
int wanderRadius = Box2dSteeringTest.metersToPixels(wanderSB.getWanderRadius());
shapeRenderer.circle(wanderCenterX, wanderCenterY, wanderRadius);
shapeRenderer.end();
// Draw target
shapeRenderer.begin(ShapeType.Filled);
shapeRenderer.setColor(1, 0, 0, 1);
int targetCenterX = Box2dSteeringTest.metersToPixels(wanderSB.getInternalTargetPosition().x);
int targetCenterY = Box2dSteeringTest.metersToPixels(wanderSB.getInternalTargetPosition().y);
shapeRenderer.circle(targetCenterX, targetCenterY, 4);
shapeRenderer.end();
}
}
@Override
public void dispose () {
super.dispose();
shapeRenderer.dispose();
spriteBatch.dispose();
}
}