using UnityEngine;

namespace Artngame.SKYMASTER
{
	[ExecuteInEditMode]
	public class PlaceParticleOnGroundSKYMASTER : MonoBehaviour
	{
		public ParticleSystem p11;

		public bool make_circle;

		public float Circle_radius = 5f;

		public int loosen_circle = 1;

		public bool is_target;

		public float spread;

		private ParticleSystem.Particle[] ParticleList;

		private Transform thisTransform;

		public Vector2 Grass_Up_Low_Threshold = new Vector2(1f, 1f);

		public bool relaxed = true;

		public float Dist_Above_Terrain = 1f;

		private void Start()
		{
			p11 = base.gameObject.GetComponent("ParticleSystem") as ParticleSystem;
			if (p11 == null)
			{
				Debug.Log("Please attach the script to a particle system");
			}
		}

		private void LateUpdate()
		{
			if (p11 == null)
			{
				p11 = base.gameObject.GetComponent("ParticleSystem") as ParticleSystem;
			}
			else
			{
				if (!(Terrain.activeTerrain != null))
				{
					return;
				}
				ParticleList = new ParticleSystem.Particle[p11.particleCount];
				p11.GetParticles(ParticleList);
				for (int i = 0; i < ParticleList.Length; i++)
				{
					if (!make_circle)
					{
						int num = Random.Range(1, ParticleList.Length);
						if ((i == num) | !relaxed)
						{
							ParticleList[i].position = new Vector3(ParticleList[i].position.x, Terrain.activeTerrain.transform.position.y + Terrain.activeTerrain.SampleHeight(ParticleList[i].position) + Dist_Above_Terrain, ParticleList[i].position.z);
						}
						if (relaxed & (base.gameObject.tag == "Grass"))
						{
							float num2 = Terrain.activeTerrain.transform.position.y + Terrain.activeTerrain.SampleHeight(ParticleList[i].position) + Dist_Above_Terrain;
							float num3 = num2 + Grass_Up_Low_Threshold.x;
							float num4 = num2 - Grass_Up_Low_Threshold.y;
							float y = ParticleList[i].position.y;
							if (ParticleList[i].position.y > num3)
							{
								y = num3;
							}
							if (ParticleList[i].position.y < num4)
							{
								y = num4;
							}
							ParticleList[i].position = new Vector3(ParticleList[i].position.x, y, ParticleList[i].position.z);
						}
					}
					int num5 = Random.Range(1, loosen_circle);
					if (make_circle & ((num5 == 1) | (is_target & (i < p11.particleCount / 1))))
					{
						float x = base.transform.position.x + Mathf.Sin(i) * (Circle_radius + (float)i * spread * 0.01f);
						float z = base.transform.position.z + Mathf.Cos(i) * (Circle_radius + (float)i * spread * 0.01f);
						float num6 = ParticleList[i].position.y;
						if (!is_target)
						{
							num6 = Terrain.activeTerrain.SampleHeight(new Vector3(x, 0f, z)) + Dist_Above_Terrain + Terrain.activeTerrain.transform.position.y;
						}
						if (is_target)
						{
							num6 = Terrain.activeTerrain.SampleHeight(new Vector3(x, 0f, z)) + Dist_Above_Terrain + Terrain.activeTerrain.transform.position.y;
						}
						ParticleList[i].position = new Vector3(x, num6 + 0f, z);
					}
				}
				p11.SetParticles(ParticleList, p11.particleCount);
			}
		}
	}
}