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Written by Jodi Cheung
Collider Example
Object should have Throwable and Interactable scripts, and a collider.
Particle System
Create particle system: GameObject->Effects->Particle System
Drag the particle to be the child of the object in the Hierarchy
Select the Particle, in the Inspector uncheck Play On Awake.
Add script
Select object in the Hierarchy
Select the Add Component button in the Inspector
Scroll down to New script
Type the name: TriggerParticles
Double click the C# script in your Assets folder
Replace the entire script with this:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class TriggerParticles : MonoBehaviour
{
public ParticleSystem particles;
public GameObject objectToCollideWith;
public float timer;
private void Start()
{
if (particles == null)
{
particles = GetComponentInChildren<ParticleSystem>();
}
}
private void OnCollisionEnter(Collision collision)
{
if (collision.gameObject == objectToCollideWith)
{
StartCoroutine(Countdown());
}
else if (objectToCollideWith == null)
{
StartCoroutine(Countdown());
}
}
IEnumerator Countdown()
{
particles.Play();
yield return new WaitForSeconds(timer);
particles.Stop();
}
}
Adjust the Variables for the Script
Select your object in the Hierarchy
Add these options under the TriggerParticles script in the Inspector
Drag the particles from the Hierarchy into Particles field
(If none are input, it will assume the particles are a child of this gameobject.)
Add an Object to Collide With, otherwise anything with a collider will start the particles.
Input a value for Timer. How long the particle system should play in seconds.
Particle Examples from Unity
Create a new project, do not import into your current project.
Download package from Unity Asset Store
https://assetstore.unity.com/packages/essentials/tutorial-projects/unity-particle-pack-127325
Click Add to my Assets
Click Open in Unity
Window->Package Manager
Packages: My Assets
Look for Unity Particle Pack
Download
Import
This installed a few folders into your Assets folder:
EffectExamples, some more Scenes, Shared, TextMesh Pro, TutorialInfo
Some WebGL publish settings are changed after installing this package, you may need to fix:
Edit->Project Settings...
Select Player Section
Under Other Settings
Select Color Space to Gamma (default Linear)
Make sure Auto Graphics API is selected (default selected)
Change Lightmap Encoding to Normal Quality (default High Quality)
Under Publishing Settings
Change Compression Format to Disabled (default Gzip)
SteamVR Errors:
Visible in Background (current = False) wants True
GPU Skinning (current = False) wants True
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