import java.util.*;

public class Acceleration {
	private double mass;
	private Map.Entry<Double, Double> force;
	private Velocity velocity;
	private Onground onground;
	private Map.Entry<Double, Double> acceleration;
	public void updateMass(double mass) {
		this.mass = mass;
		acceleration = (this.onground.getOnground() ? new AbstractMap.SimpleEntry<>((force.getKey()/mass), 0.0) : new AbstractMap.SimpleEntry<>((force.getKey()/mass), (force.getValue()/mass)));
		velocity.updateAcceleration(acceleration);
	}
	public void updateForce(Map.Entry<Double, Double> force) {
		this.force = force;
		acceleration = (this.onground.getOnground() ? new AbstractMap.SimpleEntry<>((force.getKey()/mass), 0.0) : new AbstractMap.SimpleEntry<>((force.getKey()/mass), (force.getValue()/mass)));
		velocity.updateAcceleration(acceleration);
	}
	public Acceleration(Velocity velocity, Onground onground) {
		this.onground = onground;
	}
	public Map.Entry<Double, Double> getAcceleration() {
		return acceleration;
	}
}