UDRIGEEKCup2024/Assets/Obstacles/SpearTrap/SpearTrap.cs

using System;
using System.Collections;
using UnityEngine;

namespace MAVRIC.GEEKCup.Obstacles.SpearTrap
{
    public class SpearTrap : MonoBehaviour
    {
        public Transform trapTransform;
        
        private Vector3 unTriggeredPosition;
        private Vector3 triggeredPosition = Vector3.zero;


        public float timeToTriggeredPositionSeconds = 0.05f;

        public float trapForce = 100.0f;

        private Vector3 globalTrapStartingPosition;

        private void Start()
        {
            unTriggeredPosition = trapTransform.localPosition;
            globalTrapStartingPosition = trapTransform.position;
        }

        public void TriggerTrap(float upTime)
        {
            StartCoroutine(MoveUp());
            
            IEnumerator MoveUp()
            {
                for (float timer = 0; timer <= timeToTriggeredPositionSeconds; timer += Time.deltaTime)
                {
                    yield return null;
                    float percent = timer / timeToTriggeredPositionSeconds;
                    Vector3 newPos = Vector3.Lerp(unTriggeredPosition, triggeredPosition, percent);
                    trapTransform.localPosition = newPos;
                }
                
                trapTransform.localPosition = triggeredPosition;
                for (float timer = upTime; timer >= 0.0f; timer -= Time.deltaTime)
                {
                    yield return null;
                }
                
                for (float timer = 0; timer <= timeToTriggeredPositionSeconds; timer += Time.deltaTime)
                {
                    yield return null;
                    float percent = timer / timeToTriggeredPositionSeconds;
                    Vector3 newPos = Vector3.Lerp(triggeredPosition, unTriggeredPosition, percent);
                    trapTransform.localPosition = newPos;
                }
                trapTransform.localPosition = unTriggeredPosition;
            }
        }

        private void OnTriggerEnter(Collider other)
        {
            if(other.attachedRigidbody == null) return;
            other.attachedRigidbody.AddExplosionForce(trapForce,globalTrapStartingPosition,1.0f);
            
        }
    }
}