using System;
using UnityEngine.Playables;

namespace UnityEngine.Timeline
{
	// Token: 0x02000036 RID: 54
	public class ParticleControlPlayable : PlayableBehaviour
	{
		// Token: 0x060001D1 RID: 465 RVA: 0x00009800 File Offset: 0x00007A00
		public static ScriptPlayable<ParticleControlPlayable> Create(PlayableGraph graph, ParticleSystem component, uint randomSeed)
		{
			ScriptPlayable<ParticleControlPlayable> scriptPlayable;
			if (component == null)
			{
				scriptPlayable = ScriptPlayable<ParticleControlPlayable>.Null;
			}
			else
			{
				ScriptPlayable<ParticleControlPlayable> scriptPlayable2 = ScriptPlayable<ParticleControlPlayable>.Create(graph, 0);
				scriptPlayable2.GetBehaviour().Initialize(component, randomSeed);
				scriptPlayable = scriptPlayable2;
			}
			return scriptPlayable;
		}

		// Token: 0x1700008B RID: 139
		// (get) Token: 0x060001D2 RID: 466 RVA: 0x00009844 File Offset: 0x00007A44
		public ParticleSystem particleSystem
		{
			get
			{
				return this.m_ParticleSystem;
			}
		}

		// Token: 0x060001D3 RID: 467 RVA: 0x0000985F File Offset: 0x00007A5F
		public void Initialize(ParticleSystem particleSystem, uint randomSeed)
		{
			this.m_RandomSeed = Math.Max(1U, randomSeed);
			this.m_ParticleSystem = particleSystem;
		}

		// Token: 0x060001D4 RID: 468 RVA: 0x00009878 File Offset: 0x00007A78
		public override void PrepareFrame(Playable playable, FrameData data)
		{
			if (!(this.particleSystem == null) && this.particleSystem.gameObject.activeInHierarchy)
			{
				if (this.particleSystem.randomSeed != this.m_RandomSeed)
				{
					this.particleSystem.Stop();
					this.particleSystem.useAutoRandomSeed = false;
					this.particleSystem.randomSeed = this.m_RandomSeed;
				}
				float num = (float)playable.GetTime<Playable>();
				bool flag = Mathf.Approximately(this.m_LastTime, -1f) || !Mathf.Approximately(this.m_LastTime, num);
				if (flag)
				{
					float num2 = Time.fixedDeltaTime * 0.5f;
					float num3 = num;
					float num4 = num3 - this.m_LastTime;
					bool flag2 = num3 < this.m_LastTime || num3 < num2 || Mathf.Approximately(this.m_LastTime, -1f) || num4 > this.particleSystem.main.duration || !Mathf.Approximately(this.m_LastPsTime, this.particleSystem.time);
					if (flag2)
					{
						this.particleSystem.Simulate(0f, true, true);
						this.particleSystem.Simulate(num3, true, false);
					}
					else
					{
						float num5 = num3 % this.particleSystem.main.duration;
						float num6 = num5 - this.particleSystem.time;
						if (num6 < -num2)
						{
							num6 = num5 + this.particleSystem.main.duration - this.particleSystem.time;
						}
						this.particleSystem.Simulate(num6, true, false);
					}
					this.m_LastPsTime = this.particleSystem.time;
					this.m_LastTime = num;
				}
			}
		}

		// Token: 0x060001D5 RID: 469 RVA: 0x00009A4F File Offset: 0x00007C4F
		public override void OnBehaviourPlay(Playable playable, FrameData info)
		{
			this.m_LastTime = -1f;
		}

		// Token: 0x060001D6 RID: 470 RVA: 0x00009A5D File Offset: 0x00007C5D
		public override void OnBehaviourPause(Playable playable, FrameData info)
		{
			this.m_LastTime = -1f;
		}

		// Token: 0x040000D8 RID: 216
		private const float kUnsetTime = -1f;

		// Token: 0x040000D9 RID: 217
		private float m_LastTime = -1f;

		// Token: 0x040000DA RID: 218
		private float m_LastPsTime = -1f;

		// Token: 0x040000DB RID: 219
		private uint m_RandomSeed = 1U;

		// Token: 0x040000DC RID: 220
		private ParticleSystem m_ParticleSystem;
	}
}