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ParticleEffectForUGUI
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fix #37; When moving the transform in world simulation mode, particles don't behave as expected

pull/77/head
mob-sakai 2019-02-06 20:50:28 +09:00
parent 59fc95f1ea
commit 87bdefce2b
1 changed files with 29 additions and 5 deletions
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34
Scripts/UIParticle.cs
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@ -236,6 +236,8 @@ namespace Coffee.UIExtensions
UIParticle _parent; UIParticle _parent;
List<UIParticle> _children = new List<UIParticle> (); List<UIParticle> _children = new List<UIParticle> ();
Matrix4x4 scaleaMatrix = default (Matrix4x4); Matrix4x4 scaleaMatrix = default (Matrix4x4);
Vector3 _worldPos;
static ParticleSystem.Particle [] s_Particles = new ParticleSystem.Particle [4096];
/// <summary> /// <summary>
/// Update meshes. /// Update meshes.
@ -284,21 +286,43 @@ namespace Coffee.UIExtensions
Profiler.BeginSample ("Make Matrix"); Profiler.BeginSample ("Make Matrix");
scaleaMatrix = m_ParticleSystem.main.scalingMode == ParticleSystemScalingMode.Hierarchy scaleaMatrix = m_ParticleSystem.main.scalingMode == ParticleSystemScalingMode.Hierarchy
? Matrix4x4.Scale (scale * Vector3.one) ? Matrix4x4.Scale (scale * Vector3.one)
: Matrix4x4.Scale (scale * rootCanvas.transform.localScale); : Matrix4x4.Scale (scale * rootCanvas.transform.localScale);
Matrix4x4 matrix = default (Matrix4x4); Matrix4x4 matrix = default (Matrix4x4);
switch (m_ParticleSystem.main.simulationSpace) switch (m_ParticleSystem.main.simulationSpace)
{ {
case ParticleSystemSimulationSpace.Local: case ParticleSystemSimulationSpace.Local:
matrix = matrix =
scaleaMatrix scaleaMatrix
* Matrix4x4.Rotate (m_ParticleSystem.transform.rotation).inverse * Matrix4x4.Rotate (rectTransform.rotation).inverse
* Matrix4x4.Scale (m_ParticleSystem.transform.lossyScale).inverse; * Matrix4x4.Scale (rectTransform.lossyScale).inverse;
break; break;
case ParticleSystemSimulationSpace.World: case ParticleSystemSimulationSpace.World:
matrix = matrix =
scaleaMatrix 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; break;
case ParticleSystemSimulationSpace.Custom: case ParticleSystemSimulationSpace.Custom:
break; break;