using UnityEngine;
using System.Collections;
using Random = UnityEngine.Random;
using System.Collections.Generic;


public class World : MonoBehaviour {
		[Header(">>>>>This is a script designed to create gravity fields, it can also be used as an area based normal gravity point and will orient it's targets towards the direction of the gravity")]
		[Header("Negative gravity atracts towards the gravity point, positive gravity pulls away from the center of gravity")]
		public float gravity = -10f;
		//public float Gravity_Radius = 1000f;

		[Header("it can also be used as an area based normal gravity point by toggling this variable")]
		public bool planetary_Attraction = false;	
		[Header("You can also create an anomalous gravity field a bit by enabling this option")]
		public bool AnomalousAtraction = false;

			

	    public void Attract_Global(Transform body){
	    	Vector3 targetDir = (body.position-transform.position).normalized;
	    	Vector3 bodyUp = body.up;
	    	float XDir =0f;
	    	float YDir =0f;
	    	float ZDir =0f;

			if(body.gameObject.GetComponent<Rigidbody>()){
	    		if(AnomalousAtraction){
	    			if(Random.Range(0,1)==1){
						XDir = targetDir.x;
	    			}
	    			else{
	    				XDir = -targetDir.x;
	    			}
	    			if(Random.Range(0,1)==1){
	    				YDir = targetDir.y;
	    			}
	    			else{
	    				YDir = -targetDir.y;
	    			}
	    			if(Random.Range(0,1)==1){
	    				ZDir = targetDir.z;
	    			}
	    			else{
	    				ZDir = -targetDir.z;
	    			}
	    			Vector3 finalCalculation = new Vector3(XDir,YDir,ZDir);
	    			body.GetComponent<Rigidbody>().AddForce(finalCalculation*gravity);
	    		}
	    		else{
	    			body.GetComponent<Rigidbody>().AddForce(targetDir*gravity);
	    		}


	    		body.rotation = Quaternion.FromToRotation(bodyUp, targetDir)* body.rotation;
	    	}


	    	
	    }

	    public void Simple_Gravity(Transform body){
	    	Vector3 targetDir = this.transform.up;
	    	Vector3 bodyUp = body.up;
	    	//Vector3 targetDir = (Vector3.up);
	    	//Vector3 bodyUp = this.transform.up;

	    	if(body.gameObject.GetComponent<Rigidbody>()){
	    		body.rotation = Quaternion.FromToRotation(bodyUp, targetDir)* body.rotation;
	    	}



	    	body.GetComponent<Rigidbody>().AddForce(targetDir*gravity);
	    }


	    /*private void Global_Atraction(){
			Collider[] hitColliders = Physics.OverlapSphere(this.transform.position, Gravity_Radius);
			if(hitColliders!=null){
				int c=0;
				do{
				    if(hitColliders[c].gameObject.GetComponent<Character_Motor>() || hitColliders[c].gameObject.GetComponent<AI_NPC>() || hitColliders[c].gameObject.GetComponent<Prop_Properties>()){//
				        if(hitColliders[c].gameObject.GetComponent<Rigidbody>()){
					        if(planetary_Attraction){Attract_Global(hitColliders[c].transform);}
					        else{Simple_Gravity(hitColliders[c].transform);}
					    }
					}
				c++;}while(c<hitColliders.Length);
			}
		}	*/



		void OnTriggerStay(Collider other){
	        if (other.gameObject.GetComponent<Rigidbody>()){
	            if(planetary_Attraction){Attract_Global(other.transform);}
				else{Simple_Gravity(other.transform);}
	        }
	    }
}