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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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30
Scripts/UIParticle.cs
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@ -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.
@ -292,13 +294,35 @@ namespace Coffee.UIExtensions
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;