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

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+//======= Copyright (c) Valve Corporation, All rights reserved. ===============
+//
+// Purpose: Spawns balloons
+//
+//=============================================================================
+
+using UnityEngine;
+using System.Collections;
+
+namespace Valve.VR.InteractionSystem
+{
+	//-------------------------------------------------------------------------
+	public class BalloonSpawner : MonoBehaviour
+	{
+		public float minSpawnTime = 5f;
+		public float maxSpawnTime = 15f;
+		private float nextSpawnTime;
+		public GameObject balloonPrefab;
+
+		public bool autoSpawn = true;
+		public bool spawnAtStartup = true;
+
+		public bool playSounds = true;
+		public SoundPlayOneshot inflateSound;
+		public SoundPlayOneshot stretchSound;
+
+		public bool sendSpawnMessageToParent = false;
+
+		public float scale = 1f;
+
+		public Transform spawnDirectionTransform;
+		public float spawnForce;
+
+		public bool attachBalloon = false;
+
+		public Balloon.BalloonColor color = Balloon.BalloonColor.Random;
+
+
+		//-------------------------------------------------
+		void Start()
+		{
+			if ( balloonPrefab == null )
+			{
+				return;
+			}
+
+			if ( autoSpawn && spawnAtStartup )
+			{
+				SpawnBalloon( color );
+				nextSpawnTime = Random.Range( minSpawnTime, maxSpawnTime ) + Time.time;
+			}
+		}
+
+
+		//-------------------------------------------------
+		void Update()
+		{
+			if ( balloonPrefab == null )
+			{
+				return;
+			}
+
+			if ( ( Time.time > nextSpawnTime ) && autoSpawn )
+			{
+				SpawnBalloon( color );
+				nextSpawnTime = Random.Range( minSpawnTime, maxSpawnTime ) + Time.time;
+			}
+		}
+
+
+		//-------------------------------------------------
+		public GameObject SpawnBalloon( Balloon.BalloonColor color = Balloon.BalloonColor.Red )
+		{
+			if ( balloonPrefab == null )
+			{
+				return null;
+			}
+			GameObject balloon = Instantiate( balloonPrefab, transform.position, transform.rotation ) as GameObject;
+			balloon.transform.localScale = new Vector3( scale, scale, scale );
+			if ( attachBalloon )
+			{
+				balloon.transform.parent = transform;
+			}
+
+			if ( sendSpawnMessageToParent )
+			{
+				if ( transform.parent != null )
+				{
+					transform.parent.SendMessage( "OnBalloonSpawned", balloon, SendMessageOptions.DontRequireReceiver );
+				}
+			}
+
+			if ( playSounds )
+			{
+				if ( inflateSound != null )
+				{
+					inflateSound.Play();
+				}
+				if ( stretchSound != null )
+				{
+					stretchSound.Play();
+				}
+			}
+			balloon.GetComponentInChildren<Balloon>().SetColor( color );
+			if ( spawnDirectionTransform != null )
+			{
+				balloon.GetComponentInChildren<Rigidbody>().AddForce( spawnDirectionTransform.forward * spawnForce );
+			}
+
+			return balloon;
+		}
+
+
+		//-------------------------------------------------
+		public void SpawnBalloonFromEvent( int color )
+		{
+			// Copy of SpawnBalloon using int because we can't pass in enums through the event system
+			SpawnBalloon( (Balloon.BalloonColor)color );
+		}
+	}
+}