import java.util.*; public class Acceleration { private double massValue; private Vector2 forceValue; private Velocity velocity; private Onground onground; private Vector2 value; public void updateByMass(double mass) { this.massValue = mass; Vector2 temp_l0; if (this.onground.getOnground()) { temp_l0 = new Vector2((forceValue.getX() / mass), 0.0); } else { temp_l0 = new Vector2((forceValue.getX() / mass), (forceValue.getY() / mass)); } value = temp_l0; velocity.updateByAcceleration(value); } public void updateByForce(Vector2 force) { this.forceValue = force; Vector2 temp_l1; if (this.onground.getOnground()) { temp_l1 = new Vector2((force.getX() / massValue), 0.0); } else { temp_l1 = new Vector2((force.getX() / massValue), (force.getY() / massValue)); } value = temp_l1; velocity.updateByAcceleration(value); } public Acceleration(Velocity velocity, Onground onground) { this.velocity = velocity; this.onground = onground; } public Vector2 getValue() { return value; } }