Weapon Script

Weapon.cs

using UnityEngine;

public class Weapon : MonoBehaviour
{
	[SerializeField]
	private WeaponSettings _weaponSettings;
	[SerializeField]
	private Transform _muzzlePoint;

	private SteamVR_TrackedController _controller;
	private float _nextFireTime;
	private WeaponAmmo _weaponAmmo;

	private bool CanFire { get { return Time.time >= _nextFireTime; } }

	#region UnityEvents

	private void Start()
	{
		_weaponAmmo = new WeaponAmmo(_weaponSettings);
	}

	private void OnEnable()
	{
		_controller = GetComponentInParent<SteamVR_TrackedController>();
		_controller.TriggerClicked += HandleTriggerClicked;
		_controller.Gripped += HandleGripClicked;
	}

	private void OnDisable()
	{
		_controller.TriggerClicked -= HandleTriggerClicked;
	}

	#endregion

	private void HandleGripClicked(object sender, ClickedEventArgs e)
	{
		_weaponAmmo.Reload();
	}

	private void HandleTriggerClicked(object sender, ClickedEventArgs e)
	{
		if (CanFire)
		{
			if (_weaponAmmo.TryTakeBullet())
				Fire();
		}
	}

	private void Fire()
	{
		ResetWeaponRefreshTimer();

		RaycastHit hitInfo;
		if (Physics.Raycast(GetRay(), out hitInfo, _weaponSettings.MaxRange, GetLayerMask()))
		{
			var shootable = hitInfo.collider.GetComponent<IShootable>();
			if (shootable != null)
				HitShootable(shootable);
			else
				DrawDecal(hitInfo);
		}
	}

	private void ResetWeaponRefreshTimer()
	{
		_nextFireTime = Time.deltaTime + _weaponSettings.FireDelay;
	}

	private void HitShootable(IShootable shootable)
	{
		shootable.TakeShot(GetDamage());
	}

	private int GetDamage()
	{
		return _weaponSettings.Damage;
	}

	private Ray GetRay()
	{
		return new Ray(_muzzlePoint.position, _muzzlePoint.forward);
	}

	private int GetLayerMask()
	{
		return LayerMask.GetMask("Default");
	}

	private void DrawDecal(RaycastHit hitInfo)
	{
		// Add an impact decal to the ground/building/etc using hitinfo point & normal.
	}

	private void OnDrawGizmos()
	{
		Gizmos.color = Color.green;
		Gizmos.DrawRay(_muzzlePoint.position, _muzzlePoint.forward);
	}
}