chore(release): 4.9.1 [skip ci]

## [4.9.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.9.0...v4.9.1) (2024-08-07) ### Bug Fixes * ParticleSystem trails gain offset on parent canvas change ([2a1cd50](2a1cd502b4)), closes [#323](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/323)
fix: ParticleSystem trails gain offset on parent canvas change
2026-05-15 12:40:08 +00:00 · 2024-08-07 17:13:07 +00:00 · 2024-08-08 02:00:40 +09:00 · 2024-07-18 14:56:49 +09:00 · 2024-07-18 05:09:44 +00:00 · 2024-07-18 13:40:58 +09:00
20 changed files with 1571 additions and 1058 deletions
--- a/Demo/Scripts/UIParticle_PerformanceDemo.cs
+++ b/Demo/Scripts/UIParticle_PerformanceDemo.cs
@@ -46,7 +46,11 @@ namespace Coffee.UIExtensions.Demo

            if (!flag)
            {
+#if UNITY_2023_1_OR_NEWER
+                foreach (var ps in FindObjectsByType<ParticleSystem>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
                foreach (var ps in FindObjectsOfType<ParticleSystem>())
+#endif
                {
                    ps.Play(false);
                }
@@ -75,7 +79,11 @@ namespace Coffee.UIExtensions.Demo

        public void ParticleSystem_SetScale(float scale)
        {
+#if UNITY_2023_1_OR_NEWER
+            foreach (var ps in FindObjectsByType<ParticleSystem>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
            foreach (var ps in FindObjectsOfType<ParticleSystem>())
+#endif
            {
                ps.transform.localScale = new Vector3(scale, scale, scale);
            }
--- a/Assets/ProjectSettings/NanoMonitor.asset
+++ b/Assets/ProjectSettings/NanoMonitor.asset
@@ -14,15 +14,15 @@ MonoBehaviour:
  m_EditorClassIdentifier: 
  m_NanoMonitorEnabled: 1
  m_BootSceneNameRegex: .*
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+  m_DevelopmentBuildOnly: 0
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+  m_Anchor: 0
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    m_Arg0:
@@ -31,3 +31,10 @@ MonoBehaviour:
      m_Path: UnityEngine.Screen, UnityEngine.CoreModule;height
    m_Arg2:
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+  - m_Format: UIParticles:{0} Materials:{1}
+    m_Arg0:
+      m_Path: Coffee.UIExtensions.UIParticleUpdater, Coffee.UIParticle;uiParticleCount
+    m_Arg1:
+      m_Path: Coffee.UIParticleInternal.MaterialRepository, Coffee.UIParticle;count
+    m_Arg2:
+      m_Path: 
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-MonoBehaviour:
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--- a/Assets/ProjectSettings/SimpleSceneNavigator.prefab.meta
+++ b/Assets/ProjectSettings/SimpleSceneNavigator.prefab.meta
@@ -1,7 +0,0 @@
-fileFormatVersion: 2
-guid: 46deb9632f6a14713b8460bd01e879c9
-PrefabImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
--- a/Packages/manifest.json
+++ b/Packages/manifest.json
@@ -1,5 +1,6 @@
 {
  "dependencies": {
+    "com.coffee.nano-monitor": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/NanoMonitor",
    "com.unity.ide.rider": "3.0.31",
    "com.unity.test-framework": "1.1.33",
    "com.unity.modules.animation": "1.0.0",
--- a/Packages/packages-lock.json
+++ b/Packages/packages-lock.json
@@ -1,5 +1,14 @@
 {
  "dependencies": {
+    "com.coffee.nano-monitor": {
+      "version": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/NanoMonitor",
+      "depth": 0,
+      "source": "git",
+      "dependencies": {
+        "com.unity.ugui": "1.0.0"
+      },
+      "hash": "c51e4514c9ab944915a639433ee52342e55a644e"
+    },
    "com.coffee.ui-particle": {
      "version": "file:src",
      "depth": 0,
--- a/Packages/src/CHANGELOG.md
+++ b/Packages/src/CHANGELOG.md
@@ -1,3 +1,17 @@
+## [4.9.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.9.0...v4.9.1) (2024-08-07)
+
+
+### Bug Fixes
+
+* ParticleSystem trails gain offset on parent canvas change ([2a1cd50](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/2a1cd502b452b5b56edf8bcfe91adf99d1bb5147)), closes [#323](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/323)
+
+# [4.9.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.8.1...v4.9.0) (2024-07-18)
+
+
+### Features
+
+* ParticleAttractor supports multiple ParticleSystems ([3834780](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/3834780fdb43443fe6e1ef89df54d26a24d62a91))
+
 ## [4.8.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.8.0...v4.8.1) (2024-06-27)


--- a/Packages/src/README.md
+++ b/Packages/src/README.md
@@ -1,28 +1,60 @@
-# <img alt="UIParticleIcon" src="https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/d76e105e-a840-4f61-a1f6-8cf311c0812d" width="26"/> Particle Effect For UGUI (UI Particle)
-
-This package provides a component to render particle effects for uGUI in Unity 2018.2 or later.  
-The particle rendering is maskable and sortable, without the need for an extra Camera, RenderTexture, or Canvas.
+# <img alt="UIParticleIcon" src="https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/d76e105e-a840-4f61-a1f6-8cf311c0812d" width="26"/> Particle Effect For UGUI (UI Particle) <!-- omit in toc -->

 [![](https://img.shields.io/npm/v/com.coffee.ui-particle?label=openupm&registry_uri=https://package.openupm.com)](https://openupm.com/packages/com.coffee.ui-particle/)
-[![](https://img.shields.io/github/v/release/mob-sakai/ParticleEffectForUGUI?include_prereleases)](https://github.com/mob-sakai/ParticleEffectForUGUI/releases)
-[![](https://img.shields.io/github/license/mob-sakai/ParticleEffectForUGUI.svg)](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/main/LICENSE.txt)  
+[![](https://img.shields.io/github/v/release/mob-sakai/ParticleEffectForUGUI)](https://github.com/mob-sakai/ParticleEffectForUGUI/releases)
+[![](https://img.shields.io/github/license/mob-sakai/ParticleEffectForUGUI.svg)](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/main/LICENSE.md)  
 ![](https://img.shields.io/badge/Unity-2018.2+-57b9d3.svg?style=flat&logo=unity)
+![](https://img.shields.io/badge/uGUI_2.0_Ready-57b9d3.svg?style=flat)
+![](https://img.shields.io/badge/UPR%2FHDPR_Ready-57b9d3.svg?style=flat)  
 ![](https://github.com/mob-sakai/ParticleEffectForUGUI/actions/workflows/test.yml/badge.svg?branch=develop)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-orange.svg)](http://makeapullrequest.com)
+[![](https://img.shields.io/github/watchers/mob-sakai/ParticleEffectForUGUI.svg?style=social&label=Watch)](https://github.com/mob-sakai/ParticleEffectForUGUI/subscription)
 [![](https://img.shields.io/twitter/follow/mob_sakai.svg?label=Follow&style=social)](https://twitter.com/intent/follow?screen_name=mob_sakai)

-<< [📝 Description](#-description) | [🎮 Demo](#-demo) | [⚙ Installation](#-installation) | [🚀 Usage](#-usage) | [🛠 Development Note](#-development-note) | [🤝 Contributing](#-contributing) >>
+<< [📝 Description](#-description-) | [📌 Key Features](#-key-features) | [🎮 Demo](#-demo) | [⚙ Installation](#-installation) | [🚀 Usage](#-usage) | [🛠 Development Note](#-development-note) | [🤝 Contributing](#-contributing) >>
+
+## 📝 Description <!-- omit in toc -->
+
+![](https://user-images.githubusercontent.com/12690315/41771577-8da4b968-7650-11e8-9524-cd162c422d9d.gif)
+
+This package uses the new APIs `MeshBake/MeshTrailBake` (introduced in Unity 2018.2) to render particles through `CanvasRenderer`.  
+You can render, mask, and sort your `ParticleSystems` for UI without the need for an additional `Camera`, `RenderTexture`, or `Canvas`.
+
+- [📌 Key Features](#-key-features)
+- [🎮 Demo](#-demo)
+- [⚙ Installation](#-installation)
+    - [Install via OpenUPM](#install-via-openupm)
+    - [Install via UPM (with Package Manager UI)](#install-via-upm-with-package-manager-ui)
+    - [Install via UPM (Manually)](#install-via-upm-manually)
+    - [Install as Embedded Package](#install-as-embedded-package)
+- [🚀 Usage](#-usage)
+  - [Component: UIParticle](#component-uiparticle)
+  - [Basic Usage](#basic-usage)
+  - [Usage with Your Existing ParticleSystem Prefab](#usage-with-your-existing-particlesystem-prefab)
+  - [Usage with `Mask` or `RectMask2D` Component](#usage-with-mask-or-rectmask2d-component)
+  - [Usage with Script](#usage-with-script)
+  - [Component: UIParticleAttractor](#component-uiparticleattractor)
+- [🛠 Development Note](#-development-note)
+  - [Compares the Baking mesh approach with the conventional approach](#compares-the-baking-mesh-approach-with-the-conventional-approach)
+    - [Performance test results](#performance-test-results)
+  - [🔍 FAQ: Why Are My UIParticles Not Displayed Correctly?](#-faq-why-are-my-uiparticles-not-displayed-correctly)
+  - [Shader Limitation](#shader-limitation)
+    - [Built-in shaders are not supported](#built-in-shaders-are-not-supported)
+    - [(Unity 2018 or 2019) UV.zw components will be discarded](#unity-2018-or-2019-uvzw-components-will-be-discarded)
+    - [(Unity 2018 or 2019) Custom vertex streams](#unity-2018-or-2019-custom-vertex-streams)
+  - [Overheads](#overheads)
+  - [How to Make a Custom Shader to Support `Mask` and `RectMask2D` Component](#how-to-make-a-custom-shader-to-support-mask-and-rectmask2d-component)
+- [🤝 Contributing](#-contributing)
+  - [Issues](#issues)
+  - [Pull Requests](#pull-requests)
+  - [Support](#support)
+- [License](#license)
+- [Author](#author)
+- [See Also](#see-also)

 <br><br>

-## 📝 Description
-
-![Demo](https://user-images.githubusercontent.com/12690315/41771577-8da4b968-7650-11e8-9524-cd162c422d9d.gif)
-
-This package uses the new APIs `MeshBake/MeshTrailBake` (introduced in Unity 2018.2) to render particles through CanvasRenderer.  
-You can render, mask, and sort your ParticleSystems for UI without the need for an additional Camera, RenderTexture, or Canvas.
-
-### Key Features
+## 📌 Key Features

 * **Easy to use:** The package is ready to use out of the box.
 * **Sortable:** Sort particle effects and other UI elements by sibling index.
@@ -83,16 +115,16 @@ _This package requires **Unity 2018.3 or later**._
  ```
 - To update the package, use Package Manager UI (`Window > Package Manager`) or run the following command with `@{version}`:
  ```
-  openupm add com.coffee.ui-particle@4.8.0
+  openupm add com.coffee.ui-particle@4.9.0
  ```

 #### Install via UPM (with Package Manager UI)

 - Click `Window > Package Manager` to open Package Manager UI.
 - Click `+ > Add package from git URL...` and input the repository URL: `https://github.com/mob-sakai/ParticleEffectForUGUI.git`  
-  ![](https://gist.github.com/assets/12690315/24af63ed-8a2e-483d-9023-7aa53d913330)
+  ![](https://github.com/user-attachments/assets/f88f47ad-c606-44bd-9e86-ee3f72eac548)
 - To update the package, change suffix `#{version}` to the target version.
-  - e.g. `https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.8.0`
+  - e.g. `https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.9.0`

 #### Install via UPM (Manually)

@@ -107,7 +139,7 @@ _This package requires **Unity 2018.3 or later**._
  ```

 - To update the package, change suffix `#{version}` to the target version.
-  - e.g. `"com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.8.0",`
+  - e.g. `"com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.9.0",`

 #### Install as Embedded Package

@@ -121,7 +153,7 @@ _This package requires **Unity 2018.3 or later**._

 ## 🚀 Usage

-### UIParticle Component
+### Component: UIParticle

 `UIParticle` controls the ParticleSystems that are attached to its own game objects and child game objects.

@@ -154,7 +186,7 @@ and z-position.

 <br><br>

-#### Basic Usage
+### Basic Usage

 1. Select `GameObject/UI/ParticleSystem` to create UIParticle with a ParticleSystem.
   ![particle](https://user-images.githubusercontent.com/12690315/95007361-cad0e880-0649-11eb-8835-f145d62c5977.png)
@@ -163,7 +195,7 @@ and z-position.

 <br>

-#### With Your Existing ParticleSystem Prefab
+### Usage with Your Existing ParticleSystem Prefab

 1. Select `GameObject/UI/ParticleSystem (Empty)` to create UIParticle.
   ![empty](https://user-images.githubusercontent.com/12690315/95007362-cb697f00-0649-11eb-8a09-29b0a13791e4.png)
@@ -172,7 +204,7 @@ and z-position.

 <br>

-#### With `Mask` or `RectMask2D` Component
+### Usage with `Mask` or `RectMask2D` Component

 If you want to mask particles, set a stencil-supported shader (such as `UI/UIAdditive`) to the material for
 ParticleSystem.
@@ -184,7 +216,7 @@ section.

 <br><br>

-### Script usage
+### Usage with Script

 ```cs
 // Instantiate ParticleSystem prefab with UIParticle on runtime.
@@ -203,14 +235,14 @@ uiParticle.Stop();

 <br><br>

-### UIParticleAttractor component
+### Component: UIParticleAttractor

 `UIParticleAttractor` attracts particles generated by the specified ParticleSystem.

 ![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/5c20ad73-4b9a-4f38-9cdc-119df5cce077)
 ![](https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif)

- **Particle System**: Attracts particles generated by the specified particle system.
+- **Particle Systems**: Attracts particles generated by the specified ParticleSystems.
 - **Destination Radius**: Once the particle is within the radius, the particle lifetime will become 0, and `OnAttracted`
  will be called.
 - **Delay Rate**: Delay to start attracting. It is a percentage of the particle's start lifetime.
@@ -355,7 +387,7 @@ When improving performance, keep the following in mind:
    - Consider a single material, atlasing the sprites, and using `Sprite` mode in the `Texture Sheet Animation` module
      in the ParticleSystem.

-### How to Make a Custom Shader to Support Mask/RectMask2D Component
+### How to Make a Custom Shader to Support `Mask` and `RectMask2D` Component

 <details>
 <summary>Shader tips</summary>
--- a/Packages/src/Runtime/UIParticle.cs
+++ b/Packages/src/Runtime/UIParticle.cs
@@ -355,13 +355,6 @@ namespace Coffee.UIExtensions
        {
        }

-        /// <summary>
-        /// This function is called when a direct or indirect parent of the transform of the GameObject has changed.
-        /// </summary>
-        protected override void OnTransformParentChanged()
-        {
-        }
-
        void ISerializationCallbackReceiver.OnBeforeSerialize()
        {
        }
--- a/Packages/src/Runtime/UIParticleAttractor.cs
+++ b/Packages/src/Runtime/UIParticleAttractor.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using Coffee.UIParticleExtensions;
 using UnityEngine;
 using UnityEngine.Events;
@@ -6,7 +7,7 @@ using UnityEngine.Events;
 namespace Coffee.UIExtensions
 {
    [ExecuteAlways]
-    public class UIParticleAttractor : MonoBehaviour
+    public class UIParticleAttractor : MonoBehaviour, ISerializationCallbackReceiver
    {
        public enum Movement
        {
@@ -22,8 +23,12 @@ namespace Coffee.UIExtensions
        }

        [SerializeField]
+        [HideInInspector]
        private ParticleSystem m_ParticleSystem;

+        [SerializeField]
+        private List<ParticleSystem> m_ParticleSystems = new List<ParticleSystem>();
+
        [Range(0.1f, 10f)]
        [SerializeField]
        private float m_DestinationRadius = 1;
@@ -45,7 +50,7 @@ namespace Coffee.UIExtensions
        [SerializeField]
        private UnityEvent m_OnAttracted;

-        private UIParticle _uiParticle;
+        private List<UIParticle> _uiParticles = new List<UIParticle>();

        public float destinationRadius
        {
@@ -84,25 +89,46 @@ namespace Coffee.UIExtensions
        }

        /// <summary>
-        /// The target ParticleSystem to attract.
+        /// The target ParticleSystems to attract. Use <see cref="AddParticleSystem"/> and
+        /// <see cref="RemoveParticleSystem"/> to modify the list.
        /// </summary>
-#if UNITY_EDITOR
-        public new ParticleSystem particleSystem
-#else
-        public ParticleSystem particleSystem
-#endif
+        public IReadOnlyList<ParticleSystem> particleSystems => m_ParticleSystems;
+
+        public void AddParticleSystem(ParticleSystem ps)
        {
-            get => m_ParticleSystem;
-            set
+            if (m_ParticleSystems == null)
            {
-                m_ParticleSystem = value;
-                ApplyParticleSystem();
+                m_ParticleSystems = new List<ParticleSystem>();
            }
+
+            var i = m_ParticleSystems.IndexOf(ps);
+            if (0 <= i) return; // Already added: skip
+
+            m_ParticleSystems.Add(ps);
+            _uiParticles.Clear();
+        }
+
+        public void RemoveParticleSystem(ParticleSystem ps)
+        {
+            if (m_ParticleSystems == null)
+            {
+                return;
+            }
+
+            var i = m_ParticleSystems.IndexOf(ps);
+            if (i < 0) return; // Not found. skip
+
+            m_ParticleSystems.RemoveAt(i);
+            _uiParticles.Clear();
+        }
+
+        private void Awake()
+        {
+            UpgradeIfNeeded();
        }

        private void OnEnable()
        {
-            ApplyParticleSystem();
            UIParticleUpdater.Register(this);
        }

@@ -113,85 +139,96 @@ namespace Coffee.UIExtensions

        private void OnDestroy()
        {
-            _uiParticle = null;
-            m_ParticleSystem = null;
+            _uiParticles = null;
+            m_ParticleSystems = null;
        }

        internal void Attract()
        {
-            if (m_ParticleSystem == null) return;
+            // Collect UIParticle if needed (same size as m_ParticleSystems)
+            CollectUIParticlesIfNeeded();

-            var count = m_ParticleSystem.particleCount;
-            if (count == 0) return;
-
-            var particles = ParticleSystemExtensions.GetParticleArray(count);
-            m_ParticleSystem.GetParticles(particles, count);
-
-            var dstPos = GetDestinationPosition();
-            for (var i = 0; i < count; i++)
+            for (var particleIndex = 0; particleIndex < this.m_ParticleSystems.Count; particleIndex++)
            {
-                // Attracted
-                var p = particles[i];
-                if (0f < p.remainingLifetime && Vector3.Distance(p.position, dstPos) < m_DestinationRadius)
-                {
-                    p.remainingLifetime = 0f;
-                    particles[i] = p;
+                var particleSystem = m_ParticleSystems[particleIndex];

-                    if (m_OnAttracted != null)
+                // Skip: The ParticleSystem is not active
+                if (particleSystem == null || !particleSystem.gameObject.activeInHierarchy) continue;
+
+                // Skip: No active particles
+                var count = particleSystem.particleCount;
+                if (count == 0) continue;
+
+                var particles = ParticleSystemExtensions.GetParticleArray(count);
+                particleSystem.GetParticles(particles, count);
+
+                var uiParticle = _uiParticles[particleIndex];
+                var dstPos = this.GetDestinationPosition(uiParticle, particleSystem);
+                for (var i = 0; i < count; i++)
+                {
+                    // Attracted
+                    var p = particles[i];
+                    if (0f < p.remainingLifetime && Vector3.Distance(p.position, dstPos) < this.m_DestinationRadius)
                    {
-                        try
+                        p.remainingLifetime = 0f;
+                        particles[i] = p;
+
+                        if (this.m_OnAttracted != null)
                        {
-                            m_OnAttracted.Invoke();
-                        }
-                        catch (Exception e)
-                        {
-                            Debug.LogException(e);
+                            try
+                            {
+                                this.m_OnAttracted.Invoke();
+                            }
+                            catch (Exception e)
+                            {
+                                Debug.LogException(e);
+                            }
                        }
+
+                        continue;
                    }

-                    continue;
+                    // Calc attracting time
+                    var delayTime = p.startLifetime * this.m_DelayRate;
+                    var duration = p.startLifetime - delayTime;
+                    var time = Mathf.Max(0, p.startLifetime - p.remainingLifetime - delayTime);
+
+                    // Delay
+                    if (time <= 0) continue;
+
+                    // Attract
+                    p.position = this.GetAttractedPosition(p.position, dstPos, duration, time);
+                    p.velocity *= 0.5f;
+                    particles[i] = p;
                }

-                // Calc attracting time
-                var delayTime = p.startLifetime * m_DelayRate;
-                var duration = p.startLifetime - delayTime;
-                var time = Mathf.Max(0, p.startLifetime - p.remainingLifetime - delayTime);
-
-                // Delay
-                if (time <= 0) continue;
-
-                // Attract
-                p.position = GetAttractedPosition(p.position, dstPos, duration, time);
-                p.velocity *= 0.5f;
-                particles[i] = p;
+                particleSystem.SetParticles(particles, count);
            }
-
-            m_ParticleSystem.SetParticles(particles, count);
        }

-        private Vector3 GetDestinationPosition()
+        private Vector3 GetDestinationPosition(UIParticle uiParticle, ParticleSystem particleSystem)
        {
-            var isUI = _uiParticle && _uiParticle.enabled;
-            var psPos = m_ParticleSystem.transform.position;
+            var isUI = uiParticle && uiParticle.enabled;
+            var psPos = particleSystem.transform.position;
            var attractorPos = transform.position;
            var dstPos = attractorPos;
-            var isLocalSpace = m_ParticleSystem.IsLocalSpace();
+            var isLocalSpace = particleSystem.IsLocalSpace();

            if (isLocalSpace)
            {
-                dstPos = m_ParticleSystem.transform.InverseTransformPoint(dstPos);
+                dstPos = particleSystem.transform.InverseTransformPoint(dstPos);
            }

            if (isUI)
            {
-                var inverseScale = _uiParticle.parentScale.Inverse();
-                var scale3d = _uiParticle.scale3DForCalc;
+                var inverseScale = uiParticle.parentScale.Inverse();
+                var scale3d = uiParticle.scale3DForCalc;
                dstPos = dstPos.GetScaled(inverseScale, scale3d.Inverse());

                // Relative mode
-                if (_uiParticle.positionMode == UIParticle.PositionMode.Relative)
+                if (uiParticle.positionMode == UIParticle.PositionMode.Relative)
                {
-                    var diff = _uiParticle.transform.position - psPos;
+                    var diff = uiParticle.transform.position - psPos;
                    diff.Scale(scale3d - inverseScale);
                    diff.Scale(scale3d.Inverse());
                    dstPos += diff;
@@ -237,25 +274,59 @@ namespace Coffee.UIExtensions
            return Vector3.MoveTowards(current, target, speed);
        }

-        private void ApplyParticleSystem()
+        private void CollectUIParticlesIfNeeded()
        {
-            _uiParticle = null;
-            if (m_ParticleSystem == null)
-            {
-#if UNITY_EDITOR
-                if (Application.isPlaying)
-#endif
-                {
-                    Debug.LogError("No particle system attached to particle attractor script", this);
-                }
+            if (m_ParticleSystems.Count == 0 || _uiParticles.Count != 0) return;

-                return;
+            // Expand capacity
+            if (_uiParticles.Capacity < m_ParticleSystems.Capacity)
+            {
+                _uiParticles.Capacity = m_ParticleSystems.Capacity;
            }

-            _uiParticle = m_ParticleSystem.GetComponentInParent<UIParticle>(true);
-            if (_uiParticle && !_uiParticle.particles.Contains(m_ParticleSystem))
+            // Find UIParticle that controls the ParticleSystem
+            for (var i = 0; i < m_ParticleSystems.Count; i++)
            {
-                _uiParticle = null;
+                var ps = m_ParticleSystems[i];
+                if (ps == null)
+                {
+                    _uiParticles.Add(null);
+                    continue;
+                }
+
+                var uiParticle = ps.GetComponentInParent<UIParticle>(true);
+                _uiParticles.Add(uiParticle.particles.Contains(ps) ? uiParticle : null);
+            }
+        }
+
+#if UNITY_EDITOR
+        private void OnValidate()
+        {
+            _uiParticles.Clear();
+        }
+#endif
+
+        void ISerializationCallbackReceiver.OnBeforeSerialize()
+        {
+            UpgradeIfNeeded();
+        }
+
+        void ISerializationCallbackReceiver.OnAfterDeserialize()
+        {
+        }
+
+        private void UpgradeIfNeeded()
+        {
+            // Multiple ParticleSystems support: from 'm_ParticleSystem' to 'm_ParticleSystems'
+            if (m_ParticleSystem != null)
+            {
+                if (!m_ParticleSystems.Contains(m_ParticleSystem))
+                {
+                    m_ParticleSystems.Add(m_ParticleSystem);
+                }
+
+                m_ParticleSystem = null;
+                Debug.Log($"Upgraded!");
            }
        }
    }
--- a/Packages/src/Samples~/Demo/Scripts/UIParticle_Demo.cs
+++ b/Packages/src/Samples~/Demo/Scripts/UIParticle_Demo.cs
@@ -51,7 +51,11 @@ namespace Coffee.UIExtensions.Demo

        public void EnableAnimations(bool flag)
        {
+#if UNITY_2023_1_OR_NEWER
+            foreach (var animator in FindObjectsByType<Animator>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
            foreach (var animator in FindObjectsOfType<Animator>())
+#endif
            {
                animator.enabled = flag;
            }
@@ -79,7 +83,11 @@ namespace Coffee.UIExtensions.Demo

        public void UIParticle_Scale(float scale)
        {
+#if UNITY_2023_1_OR_NEWER
+            foreach (var uip in FindObjectsByType<UIParticle>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
            foreach (var uip in FindObjectsOfType<UIParticle>())
+#endif
            {
                uip.scale = scale;
            }
@@ -87,7 +95,11 @@ namespace Coffee.UIExtensions.Demo

        public void ParticleSystem_WorldSpaseSimulation(bool flag)
        {
+#if UNITY_2023_1_OR_NEWER
+            foreach (var p in FindObjectsByType<ParticleSystem>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
            foreach (var p in FindObjectsOfType<ParticleSystem>())
+#endif
            {
                var main = p.main;
                main.simulationSpace = flag
@@ -123,7 +135,11 @@ namespace Coffee.UIExtensions.Demo

        public void ParticleSystem_SetScale(float scale)
        {
+#if UNITY_2023_1_OR_NEWER
+            foreach (var ps in FindObjectsByType<ParticleSystem>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
            foreach (var ps in FindObjectsOfType<ParticleSystem>())
+#endif
            {
                ps.transform.localScale = new Vector3(scale, scale, scale);
            }
--- a/Packages/src/Samples~/Demo/Sprites/UIParticle_Demo_Light_Frame.png.meta
+++ b/Packages/src/Samples~/Demo/Sprites/UIParticle_Demo_Light_Frame.png.meta
@@ -42,12 +42,12 @@ TextureImporter:
  compressionQuality: 50
  spriteMode: 1
  spriteExtrude: 1
-  spriteMeshType: 1
+  spriteMeshType: 0
  alignment: 0
  spritePivot: {x: 0.5, y: 0.5}
  spritePixelsToUnits: 100
  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 1
+  spriteGenerateFallbackPhysicsShape: 0
  alphaUsage: 1
  alphaIsTransparency: 1
  spriteTessellationDetail: -1
--- a/Packages/src/Samples~/Demo/Sprites/UIParticle_Demo_Move.png.meta
+++ b/Packages/src/Samples~/Demo/Sprites/UIParticle_Demo_Move.png.meta
@@ -27,7 +27,7 @@ TextureImporter:
  generateCubemap: 6
  cubemapConvolution: 0
  seamlessCubemap: 0
-  textureFormat: 1
+  textureFormat: 4
  maxTextureSize: 2048
  textureSettings:
    serializedVersion: 2
@@ -42,12 +42,12 @@ TextureImporter:
  compressionQuality: 50
  spriteMode: 1
  spriteExtrude: 1
-  spriteMeshType: 1
+  spriteMeshType: 0
  alignment: 0
  spritePivot: {x: 0.5, y: 0.5}
  spritePixelsToUnits: 100
  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 1
+  spriteGenerateFallbackPhysicsShape: 0
  alphaUsage: 1
  alphaIsTransparency: 1
  spriteTessellationDetail: -1
--- a/Packages/src/Samples~/Demo/Sprites/UIParticle_Demo_Star.png.meta
+++ b/Packages/src/Samples~/Demo/Sprites/UIParticle_Demo_Star.png.meta
@@ -42,12 +42,12 @@ TextureImporter:
  compressionQuality: 50
  spriteMode: 1
  spriteExtrude: 1
-  spriteMeshType: 1
+  spriteMeshType: 0
  alignment: 0
  spritePivot: {x: 0.5, y: 0.5}
  spritePixelsToUnits: 100
  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 1
+  spriteGenerateFallbackPhysicsShape: 0
  alphaUsage: 0
  alphaIsTransparency: 1
  spriteTessellationDetail: -1
--- a/Packages/src/Samples~/Demo/Sprites/UIParticle_Demo_Unity-chan.png.meta
+++ b/Packages/src/Samples~/Demo/Sprites/UIParticle_Demo_Unity-chan.png.meta
@@ -27,7 +27,7 @@ TextureImporter:
  generateCubemap: 6
  cubemapConvolution: 0
  seamlessCubemap: 0
-  textureFormat: -1
+  textureFormat: 4
  maxTextureSize: 2048
  textureSettings:
    serializedVersion: 2
@@ -42,12 +42,12 @@ TextureImporter:
  compressionQuality: 50
  spriteMode: 1
  spriteExtrude: 1
-  spriteMeshType: 1
+  spriteMeshType: 0
  alignment: 0
  spritePivot: {x: 0.5, y: 0.5}
  spritePixelsToUnits: 100
  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 1
+  spriteGenerateFallbackPhysicsShape: 0
  alphaUsage: 1
  alphaIsTransparency: 1
  spriteTessellationDetail: -1
--- a/Packages/src/package.json
+++ b/Packages/src/package.json
@@ -2,7 +2,7 @@
  "name": "com.coffee.ui-particle",
  "displayName": "UI Particle",
  "description": "This package provides a component to render particle effects for uGUI.\nThe particle rendering is maskable and sortable, without the need for an extra Camera, RenderTexture, or Canvas.",
-  "version": "4.8.1",
+  "version": "4.9.1",
  "unity": "2018.2",
  "license": "MIT",
  "repository": {
--- a/ProjectSettings/ProjectSettings.asset
+++ b/ProjectSettings/ProjectSettings.asset
@@ -520,7 +520,7 @@ PlayerSettings:
  webGLTemplate: APPLICATION:Default
  webGLAnalyzeBuildSize: 0
  webGLUseEmbeddedResources: 0
-  webGLCompressionFormat: 1
+  webGLCompressionFormat: 2
  webGLLinkerTarget: 0
  webGLThreadsSupport: 0
  scriptingDefineSymbols:
Author	SHA1	Message	Date
semantic-release-bot	109caed657	chore(release): 4.9.1 [skip ci] ## [4.9.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.9.0...v4.9.1) (2024-08-07) ### Bug Fixes * ParticleSystem trails gain offset on parent canvas change ([`2a1cd50`](`2a1cd502b4`)), closes [#323](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/323)	2024-08-07 17:13:07 +00:00
mob-sakai	2a1cd502b4	fix: ParticleSystem trails gain offset on parent canvas change close #323	2024-08-08 02:00:40 +09:00
mob-sakai	78d0219235	update demo	2024-07-18 14:56:49 +09:00
semantic-release-bot	de5c617d12	chore(release): 4.9.0 [skip ci] # [4.9.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.8.1...v4.9.0) (2024-07-18) ### Features * ParticleAttractor supports multiple ParticleSystems ([`3834780`](`3834780fdb`))	2024-07-18 05:09:44 +00:00
mob-sakai	15f9d92567	demos: update demo	2024-07-18 13:40:58 +09:00
mob-sakai	55fb8a0076	demos: webgl setting	2024-07-18 12:53:36 +09:00
mob-sakai	e6d8e43966	docs: update readme	2024-07-18 09:33:42 +09:00
mob-sakai	10a7fb4b7b	refactor: refactor multiple attractor - Convert 'm_ParticleSystem' to 'm_ParticleSystems' - Collect parent UIParticles on attract - Improve performance	2024-07-18 00:56:13 +09:00
dogramacigokhan	3834780fdb	feat: ParticleAttractor supports multiple ParticleSystems	2024-07-18 00:56:13 +09:00