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

Introduction

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

Prototype

@Override
    public boolean isZero() 

Source Link

Usage

From source file:com.mygdx.entities.DynamicEntities.SteerableEntity.java

private void applySteering() {
    boolean anyAccelerations = false;

    if (!steeringOutput.linear.isZero()) {
        Vector2 force = steeringOutput.linear.scl(MainGame.STEP);
        body.applyForceToCenter(force, true);
        anyAccelerations = true;/*from  w w w.j a  va  2s.  co m*/
    }

    if (steeringOutput.angular != 0) {
        body.applyTorque(steeringOutput.angular * MainGame.STEP, true);
        anyAccelerations = true;
    } else {
        Vector2 lv = getLinearVelocity();
        if (!lv.isZero()) {
            float o = vectorToAngle(lv);
            body.setAngularVelocity((o - getAngularVelocity()) * MainGame.STEP);
            body.setTransform(body.getPosition(), o);
        }
    }

    if (anyAccelerations) {
        //linear capping
        Vector2 velocity = body.getLinearVelocity();
        float currentSpeedSq = velocity.len2();
        if (currentSpeedSq > maxLinearSpeed * maxLinearSpeed) {
            body.setLinearVelocity(velocity.scl(maxLinearSpeed / (float) Math.sqrt(currentSpeedSq)));
        }

        //angular capping
        if (body.getAngularVelocity() > maxAngularSpeed) {
            body.setAngularVelocity(maxAngularSpeed);
        }
    }
}

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