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65 lines
1.4 KiB
65 lines
1.4 KiB
using UnityEngine;
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using System.Collections;
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using System.Collections.Generic;
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public class Gravitypull : MonoBehaviour {
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//public GameObject gravityWell;
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//public float wellMass;
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public int gravConstPow;
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public
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GameObject[] planets;
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//public double gravConstant = 6.673f * Mathf.Pow(10,11);
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// Use this for initialization
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void Start () {
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planets = GameObject.FindGameObjectsWithTag ("ground");
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}
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// Update is called once per frame
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void Update () {
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}
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void FixedUpdate() {
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foreach (GameObject planet in planets) {
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rigidbody2D.AddForce( calcGrav (planet));
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}
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}
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private Vector2 calcGrav(GameObject planet){
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double gravConstant = 6.673f * Mathf.Pow(10,gravConstPow);
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float gravityForce;
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Vector3 distance = planet.transform.position - transform.position;
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float r12 = distance.magnitude;
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distance /= r12;
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//Debug.Log ("distance: " + distance);
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gravityForce = (rigidbody2D.mass * planet.rigidbody2D.mass * (float)gravConstant) / (r12 * r12);
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//Debug.Log ("player mass: " + rigidbody.mass);
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//Debug.Log ("well mass: " + wellMass);
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//Debug.Log ("grav Const: " + (float)gravConstant);
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//Debug.Log ("r12: " + r12);
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//Debug.Log ("gravityForce: " + gravityForce);
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Vector2 distance2D = new Vector2 (distance.x, distance.y);
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Debug.Log ("force added: " + (distance2D * gravityForce));
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return (distance2D * gravityForce);
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}
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}
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