update documents for v2.1.0

CHANGELOG.md

@@ -1,8 +1,24 @@
 # Changelog
 
-## [2.0.0](https://github.com/mob-sakai/ParticleEffectForUGUI/tree/2.0.0) (2019-01-17)
+## [v2.1.0](https://github.com/mob-sakai/ParticleEffectForUGUI/tree/v2.1.0) (2019-02-07)
 
-[Full Changelog](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v1.3.3...2.0.0)
+[Full Changelog](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v2.0.0...v2.1.0)
+
+World simulation bug is fixed.  
+
+Before:  
+![](https://user-images.githubusercontent.com/12690315/52271654-a1008380-2987-11e9-8afc-51bfe634d78e.gif)
+
+After:  
+![](https://user-images.githubusercontent.com/12690315/52338840-d2905200-2a4e-11e9-8e53-14b39808ecad.gif)
+
+**Fixed bugs:**
+
+- When moving the transform in world simulation mode, particles don't behave as expected [\#37](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/37)
+
+## [v2.0.0](https://github.com/mob-sakai/ParticleEffectForUGUI/tree/v2.0.0) (2019-01-17)
+
+[Full Changelog](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/2.0.0...v2.0.0)
 
 **Install UIParticle with Unity Package Manager!**
 
@@ -148,4 +164,4 @@ You can mask and sort particles for uGUI without Camera, RenderTexture, Canvas.
 
 
 
-\* *This Changelog was automatically generated by [github_changelog_generator](https://github.com/skywinder/Github-Changelog-Generator)*
+\* *This Changelog was automatically generated by [github_changelog_generator](https://github.com/github-changelog-generator/github-changelog-generator)*

README.md

@@ -74,12 +74,12 @@ Find the manifest.json file in the Packages folder of your project and edit it t
 ```js
 {
   "dependencies": {
-    "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#2.0.0",
+    "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#2.1.0",
     ...
   },
 }
 ```
-To update the package, change `#2.0.0` to the target version.
+To update the package, change `#{version}` to the target version.
 
 #### Using .unitypackage file (for Unity 2018.2+)
 

Scripts/UIParticle.cs

@@ -236,6 +236,8 @@ namespace Coffee.UIExtensions
 		UIParticle _parent;
 		List<UIParticle> _children = new List<UIParticle> ();
 		Matrix4x4 scaleaMatrix = default (Matrix4x4);
+		Vector3 _worldPos;
+		static ParticleSystem.Particle [] s_Particles = new ParticleSystem.Particle [4096];
 
 		/// <summary>
 		/// Update meshes.
@@ -284,21 +286,43 @@ namespace Coffee.UIExtensions
 
 					Profiler.BeginSample ("Make Matrix");
 					scaleaMatrix = m_ParticleSystem.main.scalingMode == ParticleSystemScalingMode.Hierarchy
-					                               ? Matrix4x4.Scale (scale * Vector3.one)
-					                               : Matrix4x4.Scale (scale * rootCanvas.transform.localScale);
+												   ? Matrix4x4.Scale (scale * Vector3.one)
+												   : Matrix4x4.Scale (scale * rootCanvas.transform.localScale);
 					Matrix4x4 matrix = default (Matrix4x4);
 					switch (m_ParticleSystem.main.simulationSpace)
 					{
 						case ParticleSystemSimulationSpace.Local:
 							matrix =
 								scaleaMatrix
-								* Matrix4x4.Rotate (m_ParticleSystem.transform.rotation).inverse
-								* Matrix4x4.Scale (m_ParticleSystem.transform.lossyScale).inverse;
+								* Matrix4x4.Rotate (rectTransform.rotation).inverse
+								* Matrix4x4.Scale (rectTransform.lossyScale).inverse;
 							break;
 						case ParticleSystemSimulationSpace.World:
 							matrix =
 								scaleaMatrix
-								* m_ParticleSystem.transform.worldToLocalMatrix;
+								* rectTransform.worldToLocalMatrix;
+
+							Vector3 newPos = rectTransform.position;
+							Vector3 delta = (newPos - _worldPos);
+							_worldPos = newPos;
+							if (canvas.renderMode != RenderMode.WorldSpace && !Mathf.Approximately (scale, 0) && 0 < delta.sqrMagnitude)
+							{
+								delta *= (1 - 1 / scale);
+								int count = m_ParticleSystem.particleCount;
+								if (s_Particles.Length < count)
+								{
+									s_Particles = new ParticleSystem.Particle [s_Particles.Length * 2];
+								}
+
+								m_ParticleSystem.GetParticles (s_Particles);
+								for (int i = 0; i < count; i++)
+								{
+									var p = s_Particles [i];
+									p.position = p.position + delta;
+									s_Particles [i] = p;
+								}
+								m_ParticleSystem.SetParticles (s_Particles, count);
+							}
 							break;
 						case ParticleSystemSimulationSpace.Custom:
 							break;

package.json

@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-particle",
 	"displayName": "UI Particle",
 	"description": "This plugin provide a component to render particle effect for uGUI.\nThe particle rendering is maskable and sortable, without Camera, RenderTexture or Canvas.",
-  "version": "2.0.0",
+  "version": "2.1.0",
 	"unity": "2018.2",
   "license": "MIT",
   "repository": {