using UnityEngine;
using UnityEngine.Serialization;

namespace UltimateWater
{
	public sealed class WaterSprayEmitter : MonoBehaviour
	{
		[FormerlySerializedAs("water")]
		[SerializeField]
		private Spray _Water;

		[FormerlySerializedAs("emissionRate")]
		[SerializeField]
		private float _EmissionRate = 5f;

		[FormerlySerializedAs("startIntensity")]
		[SerializeField]
		private float _StartIntensity = 1f;

		[FormerlySerializedAs("startVelocity")]
		[SerializeField]
		private float _StartVelocity = 1f;

		[FormerlySerializedAs("lifetime")]
		[SerializeField]
		private float _Lifetime = 4f;

		private float _TotalTime;

		private float _TimeStep;

		private Spray.Particle[] _Particles;

		public float StartVelocity
		{
			get
			{
				return _StartVelocity;
			}
			set
			{
				_StartVelocity = value;
			}
		}

		private void Update()
		{
			int num = 0;
			_TotalTime += Time.deltaTime;
			while (_TotalTime >= _TimeStep && num < _Particles.Length)
			{
				_TotalTime -= _TimeStep;
				_Particles[num].Lifetime = new Vector2(_Lifetime, _Lifetime);
				_Particles[num].MaxIntensity = _StartIntensity;
				_Particles[num].Position = base.transform.position + new Vector3(Random.Range(-0.3f, 0.3f), Random.Range(-0.3f, 0.3f), Random.Range(-0.3f, 0.3f));
				_Particles[num].Velocity = base.transform.forward * _StartVelocity;
				_Particles[num++].Offset = Random.Range(0f, 10f);
			}
			if (num != 0)
			{
				_Water.SpawnCustomParticles(_Particles, num);
			}
		}

		private void OnValidate()
		{
			_TimeStep = 1f / _EmissionRate;
		}

		private void Start()
		{
			OnValidate();
			_Particles = new Spray.Particle[Mathf.Max(1, (int)_EmissionRate)];
		}
	}
}