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

Introduction

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

Prototype

@Override
    public Vector2 scl(Vector2 v) 

Source Link

Usage

From source file:com.tnf.ptm.entities.chunk.ChunkFiller.java

License:Apache License

/**
 * Fill the background of a given chunk with floating junk.
 *
 * @param game    The {@link PtmGame} instance to work with
 * @param chunk   The coordinates of the chunk
 * @param remover/*from  w w w.  java2s.  c om*/
 * @param farBg   Determines which of the background layers should be filled. <code>true</code> fills the layers furthest away, <code>false</code> fills the closer one.
 */
public void fill(PtmGame game, Vector2 chunk, RemoveController remover, boolean farBg) {
    if (DebugOptions.NO_OBJS) {
        return;
    }

    // Determine the center of the chunk by multiplying the chunk coordinates with the chunk size and adding half a chunk's size
    Vector2 chCenter = new Vector2(chunk);
    chCenter.scl(Const.CHUNK_SIZE);
    chCenter.add(Const.CHUNK_SIZE / 2, Const.CHUNK_SIZE / 2);

    // Define the density multiplier for different layers of junk in the far background
    float[] densityMul = { 1 };

    // Get the environment configuration
    SpaceEnvConfig conf = getConfig(game, chCenter, densityMul, remover, farBg);

    if (farBg) {
        fillFarJunk(game, chCenter, remover, DraLevel.FAR_DECO_3, conf, densityMul[0]);
        fillFarJunk(game, chCenter, remover, DraLevel.FAR_DECO_2, conf, densityMul[0]);
        fillFarJunk(game, chCenter, remover, DraLevel.FAR_DECO_1, conf, densityMul[0]);
    } else {
        fillDust(game, chCenter, remover);
        fillJunk(game, remover, conf, chCenter);
    }
}

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From source file:com.tnf.ptm.entities.item.Loot.java

License:Apache License

public void maybePulled(PtmShip ship, Vector2 pullerPos, float radius) {
    if (ship == myOwner) {
        return;//  w  w  w .  ja va 2  s.  co m
    }
    Vector2 toPuller = PtmMath.getVec(pullerPos);
    toPuller.sub(getPosition());
    float pullerDist = toPuller.len();
    if (0 < pullerDist && pullerDist < radius) {
        toPuller.scl(PULL_DESIRED_SPD / pullerDist);
        Vector2 spd = myBody.getLinearVelocity();
        Vector2 spdDiff = PtmMath.distVec(spd, toPuller);
        float spdDiffLen = spdDiff.len();
        if (spdDiffLen > 0) {
            spdDiff.scl(PULL_FORCE / spdDiffLen);
            myBody.applyForceToCenter(spdDiff, true);
        }
        PtmMath.free(spdDiff);
    }
    PtmMath.free(toPuller);
}

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From source file:com.tnf.ptm.entities.item.Loot.java

License:Apache License

public void pickedUp(PtmGame game, PtmShip ship) {
    myLife = 0;/*ww w  .ja v a2  s .  c o m*/
    Vector2 spd = new Vector2(ship.getPosition());
    spd.sub(myPos);
    float fadeTime = .25f;
    spd.scl(1 / fadeTime);
    spd.add(ship.getSpd());
    game.getPartMan().blip(game, myPos, myAngle, myItem.getItemType().sz, fadeTime, spd, myItem.getIcon(game));
    game.getSoundManager().play(game, myItem.getItemType().pickUpSound, null, this);
}

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From source file:com.tnf.ptm.entities.planet.Planet.java

License:Apache License

@Bound
public Vector2 getAdjustedEffectSpd(Vector2 pos, Vector2 spd) {
    Vector2 r = PtmMath.getVec(spd);
    if (myConfig.skyConfig == null) {
        return r;
    }/*from   ww w  .  j a v a2 s.  co  m*/
    Vector2 up = PtmMath.distVec(myPos, pos);
    float dst = up.len();
    if (dst == 0 || getFullHeight() < dst) {
        PtmMath.free(up);
        return r;
    }
    float smokeConst = 1.2f * myGravConst;
    if (dst < myGroundHeight) {
        up.scl(smokeConst / dst / myGroundHeight / myGroundHeight);
        r.set(up);
        PtmMath.free(up);
        return r;
    }
    float spdPerc = (dst - myGroundHeight) / Const.ATM_HEIGHT;
    r.scl(spdPerc);
    up.scl(smokeConst / dst / dst / dst);
    r.add(up);
    PtmMath.free(up);
    return r;
}

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From source file:com.tnf.ptm.entities.planet.PlanetManager.java

License:Apache License

private void applyGrav(PtmGame game, PtmSystem nearestSys) {
    float npGh = myNearestPlanet.getGroundHeight();
    float npFh = myNearestPlanet.getFullHeight();
    float npMinH = myNearestPlanet.getMinGroundHeight();
    Vector2 npPos = myNearestPlanet.getPos();
    Vector2 sysPos = nearestSys.getPos();
    float npGravConst = myNearestPlanet.getGravConst();

    List<PtmObject> objs = game.getObjMan().getObjs();
    for (PtmObject obj : objs) {
        if (!obj.receivesGravity()) {
            continue;
        }/*w  ww . j a  v a  2 s.  co  m*/

        Vector2 objPos = obj.getPosition();
        float minDist;
        Vector2 srcPos;
        float gravConst;
        boolean onPlanet;
        float toNp = npPos.dst(objPos);
        float toSys = sysPos.dst(objPos);
        if (toNp < npFh) {
            if (recoverObj(obj, toNp, npMinH)) {
                continue;
            }
            minDist = npGh;
            srcPos = npPos;
            gravConst = npGravConst;
            onPlanet = true;
        } else if (toSys < Const.SUN_RADIUS) {
            minDist = SunSingleton.SUN_HOT_RAD;
            srcPos = sysPos;
            gravConst = SunSingleton.GRAV_CONST;
            onPlanet = false;
        } else {
            continue;
        }

        Vector2 grav = PtmMath.getVec(srcPos);
        grav.sub(objPos);
        float len = grav.len();
        grav.nor();
        if (len < minDist) {
            len = minDist;
        }
        float g = gravConst / len / len;
        grav.scl(g);
        obj.receiveForce(grav, game, true);
        PtmMath.free(grav);
        if (!onPlanet) {
            mySunSingleton.doDmg(game, obj, toSys);
        }
    }

}

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From source file:com.tnf.ptm.entities.planet.PlanetManager.java

License:Apache License

private boolean recoverObj(PtmObject obj, float toNp, float npMinH) {
    if (npMinH < toNp) {
        return false;
    }/*www .  j  a  v  a 2  s . c o m*/
    if (!(obj instanceof PtmShip)) {
        return false;
    }
    PtmShip ship = (PtmShip) obj;
    Hull hull = ship.getHull();
    if (hull.config.getType() == HullConfig.Type.STATION) {
        return false;
    }
    float fh = myNearestPlanet.getFullHeight();
    Vector2 npPos = myNearestPlanet.getPos();
    Vector2 toShip = PtmMath.distVec(npPos, ship.getPosition());
    float len = toShip.len();
    if (len == 0) {
        toShip.set(0, fh);
    } else {
        toShip.scl(fh / len);
    }
    toShip.add(npPos);
    Body body = hull.getBody();
    body.setTransform(toShip, 0);
    body.setLinearVelocity(Vector2.Zero);
    PtmMath.free(toShip);
    return true;
}

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From source file:com.tnf.ptm.entities.planet.PlanetObjectsBuilder.java

License:Apache License

public FarShip buildGroundShip(PtmGame game, Planet planet, ShipConfig ge, TradeConfig tc, Faction faction,
        ConsumedAngles takenAngles, String mapHint) {
    Vector2 pos = game.getPlanetMan().findFlatPlace(game, planet, takenAngles, ge.hull.getApproxRadius());
    boolean station = ge.hull.getType() == HullConfig.Type.STATION;
    String ic = ge.items;/*from www .jav  a  2 s . com*/
    boolean hasRepairer;
    hasRepairer = faction == Faction.LAANI;
    int money = ge.money;
    float height = pos.len();
    float aboveGround;
    if (station) {
        aboveGround = ge.hull.getSize() * .75f - ge.hull.getOrigin().y;
    } else {
        aboveGround = ge.hull.getSize();
    }
    pos.scl((height + aboveGround) / height);
    PtmMath.toWorld(pos, pos, planet.getAngle(), planet.getPos(), false);

    Vector2 toPlanet = PtmMath.getVec(planet.getPos()).sub(pos);
    float angle = PtmMath.angle(toPlanet) - 180;
    if (station) {
        angle += 90;
    }
    Vector2 spd = new Vector2(toPlanet).nor();
    PtmMath.free(toPlanet);

    Pilot provider = new AiPilot(new StillGuard(pos, game, ge), false, faction, true, mapHint,
            Const.AI_DET_DIST);

    return game.getShipBuilder().buildNewFar(game, pos, spd, angle, 0, provider, ic, ge.hull, null, hasRepairer,
            money, tc, true);
}

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From source file:com.tnf.ptm.entities.planet.TileObjBuilder.java

License:Apache License

private Body buildBody(PtmGame game, float toPlanetRelAngle, float dist, Tile tile, Planet planet,
        float spriteSz) {
    BodyDef def = new BodyDef();
    def.type = BodyDef.BodyType.KinematicBody;
    float toPlanetAngle = planet.getAngle() + toPlanetRelAngle;
    PtmMath.fromAl(def.position, toPlanetAngle, dist, true);
    def.position.add(planet.getPos());/*from   w  ww. j  a  v a 2  s.c  o  m*/
    def.angle = (toPlanetAngle + 90) * PtmMath.degRad;
    def.angularDamping = 0;
    Body body = game.getObjMan().getWorld().createBody(def);
    ChainShape shape = new ChainShape();
    List<Vector2> points = new ArrayList<Vector2>();
    for (Vector2 curr : tile.points) {
        Vector2 v = new Vector2(curr);
        v.scl(spriteSz);
        points.add(v);
    }
    Vector2[] v = points.toArray(new Vector2[] {});
    shape.createLoop(v);
    Fixture f = body.createFixture(shape, 0);
    f.setFriction(Const.FRICTION);
    shape.dispose();
    return body;
}

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From source file:com.tnf.ptm.entities.planet.TileObject.java

License:Apache License

@Override
public void update(PtmGame game) {
    setDependentParams();//from w  ww. j a v a  2 s  . co  m

    if (myBody != null) {
        float ts = game.getTimeStep();
        Vector2 spd = PtmMath.getVec(myPos);
        spd.sub(myBody.getPosition());
        spd.scl(1f / ts);
        myBody.setLinearVelocity(spd);
        PtmMath.free(spd);
        float bodyAngle = myBody.getAngle() * PtmMath.radDeg;
        float av = PtmMath.norm(myAngle - bodyAngle) * PtmMath.degRad / ts;
        myBody.setAngularVelocity(av);
    }
}

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From source file:com.tnf.ptm.entities.projectile.PointProjectileBody.java

License:Apache License

@Override
public void update(PtmGame game) {
    if (myAcc > 0 && PtmMath.canAccelerate(myAcc, mySpd)) {
        float spdLen = mySpd.len();
        if (spdLen < Const.MAX_MOVE_SPD) {
            mySpd.scl((spdLen + myAcc) / spdLen);
        }/*from ww  w . j  av  a  2s . co m*/
    }
    Vector2 prevPos = PtmMath.getVec(myPos);
    Vector2 diff = PtmMath.getVec(mySpd);
    diff.scl(game.getTimeStep());
    myPos.add(diff);
    PtmMath.free(diff);
    game.getObjMan().getWorld().rayCast(myRayBack, prevPos, myPos);
    PtmMath.free(prevPos);
}

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