using System.Runtime.CompilerServices;

namespace UnityEngine
{
	public class ParticleEmitter : Component
	{
		public extern bool emit
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern float minSize
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern float maxSize
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern float minEnergy
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern float maxEnergy
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern float minEmission
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern float maxEmission
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern float emitterVelocityScale
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern Vector3 worldVelocity
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern Vector3 localVelocity
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern Vector3 rndVelocity
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern bool useWorldSpace
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern Particle[] particles
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		public extern int particleCount
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
		}

		public extern bool enabled
		{
			[MethodImpl(MethodImplOptions.InternalCall)]
			get;
			[MethodImpl(MethodImplOptions.InternalCall)]
			set;
		}

		[MethodImpl(MethodImplOptions.InternalCall)]
		public extern void ClearParticles();

		public void Emit()
		{
			Emit2((int)Random.Range(minEmission, maxEmission));
		}

		public void Emit(int count)
		{
			Emit2(count);
		}

		public void Emit(Vector3 pos, Vector3 velocity, float size, float energy, Color color)
		{
			Emit3(pos, velocity, size, energy, color);
		}

		[MethodImpl(MethodImplOptions.InternalCall)]
		private extern void Emit2(int count);

		[MethodImpl(MethodImplOptions.InternalCall)]
		private extern void Emit3(Vector3 pos, Vector3 dir, float size, float energy, Color color);

		[MethodImpl(MethodImplOptions.InternalCall)]
		public extern void Simulate(float deltaTime);
	}
}