/*******************************************************************************
* 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.scene2d.tests;
import com.badlogic.gdx.ai.steer.behaviors.BlendedSteering;
import com.badlogic.gdx.ai.steer.behaviors.CollisionAvoidance;
import com.badlogic.gdx.ai.steer.behaviors.Hide;
import com.badlogic.gdx.ai.steer.behaviors.Wander;
import com.badlogic.gdx.ai.steer.limiters.LinearAccelerationLimiter;
import com.badlogic.gdx.ai.steer.limiters.NullLimiter;
import com.badlogic.gdx.ai.steer.proximities.InfiniteProximity;
import com.badlogic.gdx.ai.steer.proximities.RadiusProximity;
import com.badlogic.gdx.ai.tests.SteeringBehaviorsTest;
import com.badlogic.gdx.ai.tests.steer.scene2d.Scene2dSteeringTest;
import com.badlogic.gdx.ai.tests.steer.scene2d.SteeringActor;
import com.badlogic.gdx.ai.tests.steer.scene2d.Scene2dTargetInputProcessor;
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.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.utils.Array;
/** A class to test and experiment with the {@link Hide} behavior.
*
* @autor davebaol */
public class Scene2dHideTest extends Scene2dSteeringTest {
private static final float DISTANCE_FROM_BOUNDARY = 35;
private static final float THREAT_RADIUS = 200;
SteeringActor character;
SteeringActor target;
boolean drawDebug;
ShapeRenderer shapeRenderer;
Hide<Vector2> hideSB;
Wander<Vector2> wanderSB;
boolean hideMode;
public Scene2dHideTest (SteeringBehaviorsTest container) {
super(container, "Hide");
}
@Override
public void create () {
super.create();
drawDebug = true;
shapeRenderer = new ShapeRenderer();
// Create obstacles
Array<SteeringActor> obstacles = new Array<SteeringActor>();
for (int i = 0; i < 6; i++) {
SteeringActor obstacle = new SteeringActor(MathUtils.randomBoolean() ? container.badlogicSmall : container.cloud, false);
setRandomNonOverlappingPosition(obstacle, obstacles, 100);
obstacles.add(obstacle);
testTable.addActor(obstacle);
}
// Create target
target = new SteeringActor(container.target);
testTable.addActor(target);
// Create hiding character
character = new SteeringActor(container.greenFish, false) {
@Override
public void act (float delta) {
// Make wander and hide mutually exclusive based on distance from target
Scene2dHideTest.this.hideMode = (target.getPosition().dst2(getPosition()) < THREAT_RADIUS * THREAT_RADIUS);
Scene2dHideTest.this.hideSB.setEnabled(hideMode);
Scene2dHideTest.this.wanderSB.setEnabled(!hideMode);
super.act(delta);
}
};
character.setMaxLinearSpeed(150);
character.setMaxLinearAcceleration(250);
// Add collision avoidance, hide and wander behaviors to character
RadiusProximity<Vector2> radiusProximity = new RadiusProximity<Vector2>(character, obstacles, character.getBoundingRadius()
+ DISTANCE_FROM_BOUNDARY * .5f);
CollisionAvoidance<Vector2> collisionAvoidanceSB = new CollisionAvoidance<Vector2>(character, radiusProximity)
.setLimiter(new LinearAccelerationLimiter(500));
InfiniteProximity<Vector2> infProximity = new InfiniteProximity<Vector2>(character, obstacles);
this.hideSB = new Hide<Vector2>(character, target, infProximity) //
.setDistanceFromBoundary(DISTANCE_FROM_BOUNDARY) //
.setTimeToTarget(0.1f) //
.setArrivalTolerance(0.001f) //
.setDecelerationRadius(80);
this.wanderSB = new Wander<Vector2>(character) //
// Don't use Face internally because independent facing is off
.setFaceEnabled(false) //
// We don't need a limiter supporting angular components because Face is not used
// No need to call setAlignTolerance, setDecelerationRadius and setTimeToTarget for the same reason
.setLimiter(new LinearAccelerationLimiter(30)) //
.setWanderOffset(60) //
.setWanderOrientation(10) //
.setWanderRadius(40) //
.setWanderRate(MathUtils.PI2 * 4);
// Sum up behaviors without truncating the result
BlendedSteering<Vector2> blendedSteeringSB = new BlendedSteering<Vector2>(character) //
.setLimiter(NullLimiter.NEUTRAL_LIMITER) //
.add(collisionAvoidanceSB, 1) //
.add(hideSB, 1) //
.add(wanderSB, 1);
character.setSteeringBehavior(blendedSteeringSB);
testTable.addActor(character);
inputProcessor = new Scene2dTargetInputProcessor(target);
Table detailTable = new Table(container.skin);
detailTable.row();
addMaxAngularAccelerationController(detailTable, character, 0, 2000, 20);
detailTable.row();
addMaxLinearSpeedController(detailTable, character, 0, 300, 10);
detailTable.row();
final Label labelDecelerationRadius = new Label("Deceleration Radius [" + hideSB.getDecelerationRadius() + "]",
container.skin);
detailTable.add(labelDecelerationRadius);
detailTable.row();
Slider decelerationRadius = new Slider(0, 150, 1, false, container.skin);
decelerationRadius.setValue(hideSB.getDecelerationRadius());
decelerationRadius.addListener(new ChangeListener() {
@Override
public void changed (ChangeEvent event, Actor actor) {
Slider slider = (Slider)actor;
hideSB.setDecelerationRadius(slider.getValue());
labelDecelerationRadius.setText("Deceleration Radius [" + slider.getValue() + "]");
}
});
detailTable.add(decelerationRadius);
detailTable.row();
final Label labelArrivalTolerance = new Label("Arrival tolerance [" + hideSB.getArrivalTolerance() + "]", container.skin);
detailTable.add(labelArrivalTolerance);
detailTable.row();
Slider arrivalTolerance = new Slider(0, 1, 0.0001f, false, container.skin);
arrivalTolerance.setValue(hideSB.getArrivalTolerance());
arrivalTolerance.addListener(new ChangeListener() {
@Override
public void changed (ChangeEvent event, Actor actor) {
Slider slider = (Slider)actor;
hideSB.setArrivalTolerance(slider.getValue());
labelArrivalTolerance.setText("Arrival tolerance [" + slider.getValue() + "]");
}
});
detailTable.add(arrivalTolerance);
detailTable.row();
final Label labelTimeToTarget = new Label("Time to Target [" + hideSB.getTimeToTarget() + " sec.]", container.skin);
detailTable.add(labelTimeToTarget);
detailTable.row();
Slider timeToTarget = new Slider(0, 3, 0.1f, false, container.skin);
timeToTarget.setValue(hideSB.getTimeToTarget());
timeToTarget.addListener(new ChangeListener() {
@Override
public void changed (ChangeEvent event, Actor actor) {
Slider slider = (Slider)actor;
hideSB.setTimeToTarget(slider.getValue());
labelTimeToTarget.setText("Time to Target [" + slider.getValue() + " sec.]");
}
});
detailTable.add(timeToTarget);
detailWindow = createDetailWindow(detailTable);
}
@Override
public void draw () {
// if (drawDebug) {
// Steerable<Vector2> steerable = characters.get(0);
// shapeRenderer.begin(ShapeType.Line);
// shapeRenderer.setColor(0, 1, 0, 1);
// shapeRenderer.circle(steerable.getPosition().x, steerable.getPosition().y, char0Proximity.getRadius());
// shapeRenderer.end();
// }
shapeRenderer.begin(ShapeType.Line);
if (hideMode)
shapeRenderer.setColor(1, 0, 0, 1);
else
shapeRenderer.setColor(0, 1, 0, 1);
shapeRenderer.circle(character.getPosition().x, character.getPosition().y, THREAT_RADIUS);
shapeRenderer.end();
}
@Override
public void dispose () {
super.dispose();
shapeRenderer.dispose();
}
}