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70 lines
2.1 KiB
Java
70 lines
2.1 KiB
Java
package com.verictas.pos.simulator;
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import javax.vecmath.*;
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import java.lang.*;
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public class Object {
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public double mass;
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public Vector3f position;
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public Vector3f speed;
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private double gravitationalConstant = 6.67384E-11;
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/**
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* Constructs an object
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* @param mass The mass of the object
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* @param position The position vector of the object
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* @param speed The speed vector of the object
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*/
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public Object(double mass, Vector3f position, Vector3f speed) {
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this.mass = mass;
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this.position = position;
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this.speed = speed;
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}
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/**
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* Sets the speed vector of an object
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* @param speed Current speed vector
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*/
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public void setSpeed(Vector3f speed) {
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this.speed = speed;
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}
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/**
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* Sets the position vector of an object.
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* @param position Current position vector
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*/
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public void setPosition(Vector3f position) {
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this.position = position;
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}
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/**
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* Changes an object into readable form
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* @return String
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*/
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public String toString() {
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return "Mass: " + this.mass + " & Position: " + this.position + " & Speed: " + this.speed;
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}
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/**
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* Calculates the force of the passed object on the current object.
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* @param secondObject The passed object
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* @return Vector3f The gravitational force
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*/
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public Vector3f getForceOnObject(Object secondObject) {
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double scale = gravitationalConstant * ((this.mass * secondObject.mass) / Math.pow(getDistance(secondObject).length(), 3.0));
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Vector3f force = getDistance(secondObject);
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force.scale((float) scale);
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return force;
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}
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/**
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* Get the vector distance between the current position vector and the position vector of the passed object.
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* @param secondObject The passed object.
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* @return Vector3f The distance vector
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*/
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private Vector3f getDistance(Object secondObject) {
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Vector3f distance = new Vector3f(0,0,0); // Empty
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distance.sub(this.position, secondObject.position);
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return distance;
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}
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}
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