how to check if the target is to the left or the right?

Questions & Answers
1

i have this code, which checks for if the target is behind or in front, but was wondering how can i check if it is to the left or the right of me ( i need it so i can play a certain animation).

Vector3 dir = (target.transform.position - transform.position).normalized;
	float direction = Vector3.Dot (dir, transform.forward);
if (direction < 0.3f) {// stuff here
}
2

Get the Dot product of the transform.right vector and the direction vector. Same deal, negative value is to the left and positive is to the right.

3

using System.Collections;
using UnityEngine;

    public class NewBehaviourScript : MonoBehaviour {
    	public Transform target;
    	private Vector2 mypos;
    	
	void Start () {
		mypos = transform.position;
		var targetPos = target.position;
		if (target.position.x < mypos.x && changed(mypos.y,targetPos.y)) {
			print ("Right");
		} else if(changed(mypos.y,targetPos.y)){
			print ("Left");
		}


		if(target.position.y < mypos.y && changed(mypos.x,targetPos.x)){
			print("Up");
		}else if(changed(mypos.x,targetPos.x)){
			print("Down");
		}
	}


	bool changed(float a,float b){
		if((int)a == (int)b){
			return true;
		}else{
			return false;
		}
	}
}
4

if(Vector3.Dot(transform.right, transform.position) > 0) {
//Is moving right
} else {
//Is moving left
}