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Assets/SteamVR/InteractionSystem/Longbow/Scripts/FireSource.cs

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+//======= Copyright (c) Valve Corporation, All rights reserved. ===============
+//
+// Purpose: This object can be set on fire
+//
+//=============================================================================
+
+using UnityEngine;
+using System.Collections;
+
+namespace Valve.VR.InteractionSystem
+{
+	//-------------------------------------------------------------------------
+	public class FireSource : MonoBehaviour
+	{
+		public GameObject fireParticlePrefab;
+		public bool startActive;
+		private GameObject fireObject;
+
+		public ParticleSystem customParticles;
+
+		public bool isBurning;
+
+		public float burnTime;
+		public float ignitionDelay = 0;
+		private float ignitionTime;
+
+		private Hand hand;
+
+		public AudioSource ignitionSound;
+
+		public bool canSpreadFromThisSource = true;
+
+		//-------------------------------------------------
+		void Start()
+		{
+			if ( startActive )
+			{
+				StartBurning();
+			}
+		}
+
+
+		//-------------------------------------------------
+		void Update()
+		{
+			if ( ( burnTime != 0 ) && ( Time.time > ( ignitionTime + burnTime ) ) && isBurning )
+			{
+				isBurning = false;
+				if ( customParticles != null )
+				{
+					customParticles.Stop();
+				}
+				else
+				{
+					Destroy( fireObject );
+				}
+			}
+		}
+
+
+		//-------------------------------------------------
+		void OnTriggerEnter( Collider other )
+		{
+			if ( isBurning && canSpreadFromThisSource )
+			{
+				other.SendMessageUpwards( "FireExposure", SendMessageOptions.DontRequireReceiver );
+			}
+		}
+
+
+		//-------------------------------------------------
+		private void FireExposure()
+		{
+			if ( fireObject == null )
+			{
+				Invoke( "StartBurning", ignitionDelay );
+			}
+
+			if ( hand = GetComponentInParent<Hand>() )
+			{
+				hand.TriggerHapticPulse( 1000 );
+			}
+		}
+
+
+		//-------------------------------------------------
+		private void StartBurning()
+		{
+			isBurning = true;
+			ignitionTime = Time.time;
+
+			// Play the fire ignition sound if there is one
+			if ( ignitionSound != null )
+			{
+				ignitionSound.Play();
+			}
+
+			if ( customParticles != null )
+			{
+				customParticles.Play();
+			}
+			else
+			{
+				if ( fireParticlePrefab != null )
+				{
+					fireObject = Instantiate( fireParticlePrefab, transform.position, transform.rotation ) as GameObject;
+					fireObject.transform.parent = transform;
+				}
+			}
+		}
+	}
+}