GoatCtlr_v1

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class GoatCtrl_v1 : MonoBehaviour {

    public GameObject GoatObj;
    public GameObject GoatFeet;
    public GameObject HitPointObj;
    private Rigidbody2D GoatRb;
    private Collider2D GoatCollider;
    public GameObject AimTargetObj;
    private Vector2 AimTargetPos;
    public GameObject AncorObjPrefab;
    private Vector2 MouseForce;
    private GameObject ShootStartPoint;
    private GameObject ShootEndPoint;
    private Vector3 MousePos;
    private Vector3 ShootForce;
    private Vector3 GoatDirection;
    private Vector3 lastPosition;
    public float speed = 5f;
    public float ShootForceAmnt = 100f;
    public float MaxShootSpeed = 10;
    private OnGround OnTheGround;

    Vector3 MousePosition()
    {
        Vector3 MousePos = Input.mousePosition;
        MousePos = Camera.main.ScreenToWorldPoint(MousePos);
        MousePos = new Vector3(MousePos.x, MousePos.y, 0f);
        return MousePos;
    }
    void Start () {
        GoatRb = GoatObj.GetComponent<Rigidbody2D>();
        GoatCollider = GoatObj.GetComponent<Collider2D>();
        OnTheGround = GoatObj.GetComponent<OnGround>();
    }
    void Update() {
        Vector2 MousePos = MousePosition();
        Vector3 GameObjPos = GoatObj.transform.position;
        Vector3 ShootForce = Vector3.zero;
        if (Input.GetMouseButtonDown(0))// Create start and end point targets on mouse click
        {
            if (ShootStartPoint == null) // if start point not created yet, create
            {
                var HitPointObj = (GameObject)Instantiate(AncorObjPrefab, MousePos, Quaternion.identity);
                ShootStartPoint = HitPointObj;
            }
            if (ShootEndPoint == null) // if end point not created yet, create
            {
                var HitPointObj = (GameObject)Instantiate(AncorObjPrefab, MousePos, Quaternion.identity);
                ShootEndPoint = HitPointObj;
            }
        }
        if (Input.GetMouseButton(0))// Update End position target while mouse is down
        {
            if (ShootEndPoint != null)
            {
                ShootEndPoint.transform.position = MousePos;
            }
            Debug.DrawLine(ShootStartPoint.transform.position, ShootEndPoint.transform.position);
        }
        if (Input.GetMouseButtonUp(0))// Destroy Targets, clean up icons, shoot goat
        {
            Vector3 JumpForce = ShootStartPoint.transform.position - ShootEndPoint.transform.position;
            float ShootMag = JumpForce.magnitude;// * ShootForceAmnt;
            JumpForce.Normalize();
            Vector3 ShootForceMax = Vector3.ClampMagnitude(JumpForce * (ShootMag* ShootForceAmnt), MaxShootSpeed);
            ShootForce =  ShootForceMax - GameObjPos;
            //Debug.Log(ShootForce);
            Destroy(ShootStartPoint);
            Destroy(ShootEndPoint);
        }
         if (OnTheGround.IsOnGround)
        {
            GoatRb.AddForce(ShootForce);
        }
        lastPosition = GoatObj.transform.position;
    }
}