package entities.player;

import entities.Pair;

public class Acceleration {
    private double massValue = 1.0;
    private Pair<Double> forceValue = new Pair<>(0d, 0d);
    private Velocity velocity;
    private Onground onground;
    private Pair<Double> value = new Pair<>(0d, 0d);

    //---------------------------------------------------------------
    //
    public void updateByMass(double mass) {
        this.massValue = mass;
        Pair<Double> temp_l0;

        if (this.onground.getOnground()) temp_l0 = new Pair((forceValue.getFirst() / mass), 0.0);
        else temp_l0 = new Pair((forceValue.getFirst() / mass), (forceValue.getSecond() / mass));

        this.value = temp_l0;
        velocity.updateByAcceleration(value);
    }

    //---------------------------------------------------------------
    //
    public void updateByForce(Pair<Double> force) {
        this.forceValue = force;
        Pair<Double> temp_l1;

        if (this.onground.getOnground()) temp_l1 = new Pair((force.getFirst() / massValue), 0.0);
        temp_l1 = new Pair((force.getFirst() / massValue), (force.getSecond() / massValue));

        value = temp_l1;
        velocity.updateByAcceleration(value);
    }

    //---------------------------------------------------------------
    //---------------------------------------------------------------
    public Acceleration(Velocity velocity, Onground onground) {
        this.velocity = velocity;
        this.onground = onground;
    }

    //---------------------------------------------------------------
    //
    public Pair<Double> getValue() {
        return value;
    }
}