GGJ_2020/Assets/Scripts/HammerController.cs

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

public class HammerController : MonoBehaviour
{

    [SerializeField]
    private Vector2 AngleLimit;

    [SerializeField]
    private Vector3 RotationAxis;

    [SerializeField]
    private Vector3 HitDirection;

    [SerializeField]
    private float Force;

    [SerializeField]
    private float Speed;

    private Vector3 startDir;

    private void Start()
    {
        transform.forward = Vector3.up;
        startDir = transform.forward;

    }

    // Update is called once per frame
    void FixedUpdate()
    {
        float ratio = (Mathf.Sin(Time.time * Speed) + 1) / 2;
        transform.forward = Quaternion.AngleAxis(Mathf.Lerp(AngleLimit.x, AngleLimit.y, ratio), transform.parent.InverseTransformDirection(RotationAxis)) * startDir;
        Vector3 hitDirection = Quaternion.AngleAxis(Mathf.Lerp(AngleLimit.x, AngleLimit.y, ratio), transform.parent.InverseTransformDirection(RotationAxis)) * transform.parent.InverseTransformDirection(HitDirection) * -(Mathf.Cos(Time.time * Speed));

        Debug.DrawRay(transform.position, hitDirection * Force, Color.green);
    }

    private void OnTriggerStay(Collider other)
    {
        var horse = other.GetComponent<PlayerController>();

        if (horse != null)
        {
            float ratio = (Mathf.Sin(Time.time * Speed) + 1) / 2;
            Vector3 hitDirection =  Quaternion.AngleAxis(Mathf.Lerp(AngleLimit.x, AngleLimit.y, ratio), transform.parent.InverseTransformDirection(RotationAxis)) * transform.parent.InverseTransformDirection(HitDirection) * -(Mathf.Cos(Time.time * Speed));

            horse.AddForce((hitDirection.normalized  + Vector3.up) * Force);
            Debug.Log("Hitting horse");
        }
    }
}