Example usage for com.badlogic.gdx.math Vector2 Vector2

List of usage examples for com.badlogic.gdx.math Vector2 Vector2

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Introduction

In this page you can find the example usage for com.badlogic.gdx.math Vector2 Vector2.

Prototype

public Vector2(Vector2 v)

Source Link

Document

Constructs a vector from the given vector

Usage

From source file:com.dongbat.invasion.util.BulletUtil.java

private static Vector2 calculateImpulse(Vector2 fireVector, int power, float angle) {
    Vector2 impulse = new Vector2(fireVector);
    // TODO: -40 =.=
    return impulse.scl(power).rotate(angle).scl(-40);
}

From source file:com.dongbat.invasion.util.EffectUtil.java

/**
 * Create explosions//w  w  w .j a va2s  .co m
 *
 * @param physPos physical position, center point for explosions
 * @param physRadius the radius where explosion can spawn
 * @param duration the duration to randomize the spawning time of explosion
 */
public static void explode(Vector2 physPos, float physRadius, int duration) {
    Vector2 position = RenderCameraUtil.physicsToRenderCoords(physPos);
    float radius = physRadius * PhysicsCameraUtil.getRatio();

    int count;
    if (radius <= SINGLE_EXPLOSION_RADIUS) {
        count = 1;
    } else if (radius > SINGLE_EXPLOSION_RADIUS && radius <= SINGLE_EXPLOSION_RADIUS * 2) {
        count = 4;
    } else if (radius > SINGLE_EXPLOSION_RADIUS * 2 && radius <= SINGLE_EXPLOSION_RADIUS * 4) {
        count = 8;
    } else {
        count = 12;
    }

    if (count == 1) {
        createSingleExplosion(position, 0);
        return;
    }

    for (int i = 0; i < count; i++) {
        Vector2 pos = new Vector2(position);
        pos.x += MathUtils.random(-radius, radius);
        pos.y += MathUtils.random(-radius, radius);
        int delay = MathUtils.random(duration);

        createSingleExplosion(pos, delay);
    }
}

From source file:com.dongbat.invasion.util.PhysicsUtil.java

public static Entity findNearestEnemy(Vector2 location) {
    ImmutableBag<Entity> allEnemies = ECSUtil.getWorld().getManager(GroupManager.class)
            .getEntities(Constants.ENEMY.GROUP_NAME);
    Entity nearest = null;//from  w  w  w . j av a  2s . c o m
    float closestDistanceSq = Float.MAX_VALUE;

    for (Entity enemy : allEnemies) {
        Vector2 position = getBody(enemy).getPosition();
        float distanceSq = new Vector2(position).sub(location).len2();
        if (distanceSq < closestDistanceSq) {
            nearest = enemy;
            closestDistanceSq = distanceSq;
        }
    }

    return nearest;
}

From source file:com.dongbat.invasion.util.PhysicsUtil.java

public static Array<Entity> findEnemiesInRadius(final Vector2 location, final float radius) {
    final Array<Entity> enemies = new Array<Entity>();

    QueryCallback callback = new QueryCallback() {

        @Override/*from w  w w  .j a  v a  2  s  .c o m*/
        public boolean reportFixture(Fixture fixture) {
            Body body = fixture.getBody();
            Entity entity = (Entity) body.getUserData();
            if (EntityUtil.isEnemy(entity)) {
                float distanceSq = new Vector2(body.getPosition()).sub(location).len2();
                if (distanceSq <= radius * radius) {
                    enemies.add(entity);
                }
            }
            return true;
        }
    };
    Vector2 lowerLeft = new Vector2(location).sub(radius, radius);
    Vector2 upperRight = new Vector2(location).add(radius, radius);
    getWorld().QueryAABB(callback, lowerLeft.x, lowerLeft.y, upperRight.x, upperRight.y);

    return enemies;
}

From source file:com.dongbat.invasion.util.PlayerInputUtil.java

public static void init() {
    Gdx.input.setInputProcessor(new InputAdapter() {

        @Override//  w  ww.  ja v a2 s  .c o  m
        public boolean touchDragged(int screenX, int screenY, int pointer) {
            aim(screenX, screenY);
            return true;
        }

        @Override
        public boolean touchUp(int screenX, int screenY, int pointer, int button) {
            fireVector = new Vector2(aimVector);
            aimVector = null;
            return true;
        }

        @Override
        public boolean touchDown(int screenX, int screenY, int pointer, int button) {
            aim(screenX, screenY);
            return true;
        }

        private void aim(int x, int y) {
            Vector3 v = new Vector3(x, y, 0);
            v = camera.unproject(v);
            aimVector = new Vector2(v.x, v.y);
            if (aimVector.len2() >= 400) {
                aimVector.nor().scl(20);
            }
        }
    });
}

From source file:com.flaiker.reaktio.entities.DragSquareEntity.java

License:Open Source License

private float getTravelledDistance() {
    Vector2 tmpVec = new Vector2(startPos);
    return Math.abs(tmpVec.sub(getX(), getY()).len());
}

From source file:com.forerunnergames.peril.client.settings.PlayMapSettings.java

License:Open Source License

public static Vector2 countryArmyCircleSizeActualPlayMapSpace(final Vector2 playMapReferenceSize) {
    Arguments.checkIsNotNull(playMapReferenceSize, "playMapReferenceSize");

    return new Vector2(COUNTRY_ARMY_CIRCLE_SIZE_REFERENCE_PLAY_MAP_SPACE)
            .scl(referenceToActualPlayMapScaling(playMapReferenceSize));
}

From source file:com.forerunnergames.peril.client.ui.screens.game.play.modes.classic.playmap.actors.DefaultCountry.java

License:Open Source License

public DefaultCountry(final CountryImages<CountryPrimaryImageState, CountryPrimaryImage> primaryImages,
        final CountryImages<CountrySecondaryImageState, CountrySecondaryImage> secondaryImages,
        final CountryImageData imageData, final CountryArmyText armyText, final Vector2 playMapReferenceSize) {
    Arguments.checkIsNotNull(primaryImages, "primaryImages");
    Arguments.checkIsNotNull(secondaryImages, "secondaryImages");
    Arguments.checkIsNotNull(imageData, "imageData");
    Arguments.checkIsNotNull(armyText, "armyText");
    Arguments.checkIsNotNull(playMapReferenceSize, "playMapReferenceSize");

    this.primaryImages = primaryImages;
    this.secondaryImages = secondaryImages;
    this.imageData = imageData;
    this.armyText = armyText;

    final Vector2 referenceToActualPlayMapSpaceScaling = PlayMapSettings
            .referenceToActualPlayMapScaling(playMapReferenceSize);

    final Vector2 tempPosition = new Vector2(imageData.getReferenceDestination());
    tempPosition.y = playMapReferenceSize.y - tempPosition.y;
    tempPosition.scl(referenceToActualPlayMapSpaceScaling);

    group.setName(imageData.getCountryName());
    group.setTransform(false);//w  ww  .  j a  va 2 s.  co m

    for (final CountryPrimaryImage primaryImage : primaryImages.getAll()) {
        primaryImage.setVisible(false);
        primaryImage.setPosition(tempPosition);
        primaryImage.setScale(referenceToActualPlayMapSpaceScaling);
        group.addActor(primaryImage.asActor());
    }

    for (final CountrySecondaryImage countrySecondaryImage : secondaryImages.getAll()) {
        countrySecondaryImage.setVisible(false);
        countrySecondaryImage.setPosition(tempPosition);
        countrySecondaryImage.setScale(referenceToActualPlayMapSpaceScaling);
        group.addActor(countrySecondaryImage.asActor());
    }

    changePrimaryStateTo(primaryImageState);
    changeSecondaryStateTo(secondaryImageState);
}

From source file:com.github.unluckyninja.defenseofhuman.model.entity.Player.java

License:Open Source License

private void createBody(GameWorld gameWorld, Vector2 position) {
    Vector2 temp = new Vector2(position);
    if (body != null) {
        this.world.destroyBody(body);
    }/*from ww  w.  ja va  2s.  c  o  m*/
    this.world = gameWorld.getWorld();

    BodyDef def = new BodyDef();
    def.type = BodyDef.BodyType.DynamicBody;
    def.fixedRotation = true;
    def.bullet = true;
    def.position.set(temp);
    body = world.createBody(def);

    body.setUserData(this);

    CircleShape cir = new CircleShape();
    cir.setRadius(0.4f);
    cir.setPosition(temp.add(0, 0.4f));
    circle = body.createFixture(cir, 0);
    circle.setRestitution(0f);
    cir.dispose();

    PolygonShape poly = new PolygonShape();
    poly.setAsBox(0.4f, 0.8f, temp.add(0, 0.8f), 0);
    box = body.createFixture(poly, 1);

    poly.setAsBox(0.2f, 0.2f, temp.add(0, -0.4f), 0);
    localLaunchPosition = temp.cpy();

    FixtureDef fixDef = new FixtureDef();
    fixDef.isSensor = true;
    fixDef.density = 0.01f;
    fixDef.shape = poly;

    shootSensor = body.createFixture(fixDef);

    poly.dispose();
}

From source file:com.github.unluckyninja.defenseofhuman.model.entity.Player.java

License:Open Source License

private void updateAction(float delta) {

    Vector2 oldvel = body.getLinearVelocity();
    Vector2 oldpos = body.getPosition();

    // ??//from   w  w  w . j a  v  a2s .co m
    // 
    if (state == PlayerState.INAIR) {
        box.setFriction(0f);
        circle.setFriction(0f);
    } else if (run) {
        box.setFriction(1f);
        circle.setFriction(1f);
    } else {
        box.setFriction(100f);
        circle.setFriction(100f);
    }
    // 
    if (run && Math.abs(oldvel.x) <= MAX_VELOCITY) {
        if (runleft) {
            body.applyLinearImpulse(-1, 0, oldpos.x, oldpos.y, true);
        } else {
            body.applyLinearImpulse(1, 0, oldpos.x, oldpos.y, true);
        }
    } else if (!run && state != PlayerState.INAIR) {
        body.setLinearVelocity(oldvel.x * 0.9f, oldvel.y);
    }
    // ??
    if (run && Math.abs(body.getLinearVelocity().x) >= MAX_VELOCITY) {
        body.setLinearVelocity(Math.signum(oldvel.x) * MAX_VELOCITY, oldvel.y);
    }
    // 
    if (jump) {
        body.setLinearVelocity(oldvel.x, 0);
        body.applyLinearImpulse(0, 8, oldpos.x, oldpos.y, true);
    }
    // 
    if (shoot && shooter.canShoot) {
        shooter.shoot(new Vector2(gameWorld.cursorPosition).sub(body.getWorldPoint(localLaunchPosition)));
    }
}