private void TestSelection()
{
// Selection (accounts for transparency)
if (Input.GetMouseButtonDown(0))
{
RaycastHit hit;
if (!Physics.Raycast(cam.ScreenPointToRay(Input.mousePosition), out hit))
{
return;
}
ParticleCollider hitParticleCollider = hit.transform.gameObject.GetComponent <ParticleCollider>();
if (hitParticleCollider != null)
{
Renderer rend = hit.transform.GetComponent <Renderer>();
MeshCollider meshCollider = hit.collider as MeshCollider;
meshCollider.convex = false;
if (rend == null || rend.sharedMaterial == null || rend.sharedMaterial.mainTexture == null || meshCollider == null)
{
Debug.Log("HIT! " + hitParticleCollider.ParticleSys.name, this);
return;
}
Texture2D tex = rend.material.mainTexture as Texture2D;
Vector2 pixelUV = hit.textureCoord;
// Apply texture sheet animation offset
ParticleSystem.TextureSheetAnimationModule texModule = hitParticleCollider.ParticleSys.textureSheetAnimation;
if (texModule.enabled)
{
SubUVTextureInfo subUV = new SubUVTextureInfo(texModule, hitParticleCollider.Particle);
pixelUV.x = (subUV.currentColumn / subUV.columns) + (pixelUV.x / subUV.columns);
pixelUV.y = (subUV.currentRow / subUV.rows) + ((1 - pixelUV.y) / subUV.rows);
pixelUV.y = 1 - pixelUV.y;
}
pixelUV.x *= tex.width;
pixelUV.y *= tex.height;
Color hitColor = tex.GetPixelForced((int)pixelUV.x, (int)pixelUV.y);
Debug.Log("Raycast hit color: " + hitColor, this);
if (debugImg != null)
{
debugImg.color = hitColor;
}
if (hitColor.a > hitTestAlphaCutoff)
{
Debug.Log("HIT! " + hitParticleCollider.ParticleSys.name, this);
}
}
}
}
public void ReconstructParticleSystem()
{
foreach (ParticleCollider curParticleCollider in particleColliders)
{
GameObject curGO = curParticleCollider.gameObject;
ParticleSystem.Particle curParticle = curParticleCollider.Particle;
float rotationCorrection = 1f;
Vector3 pivot = particleSystemRenderer.pivot;
Vector3 size = curParticle.GetCurrentSize3D(particleSys);
// Get hierarchy scale
Vector3 transformScale = particleSys.transform.localScale;
// Apply position
switch (particleSys.main.simulationSpace)
{
case ParticleSystemSimulationSpace.Local:
curGO.transform.SetParent(particleSys.gameObject.transform);
curGO.transform.localPosition = curParticle.position;
pivot = Vector3.Scale(pivot, transformScale);
break;
case ParticleSystemSimulationSpace.World:
curGO.transform.SetParent(null);
curGO.transform.position = curParticle.position;
size = Vector3.Scale(size, transformScale);
break;
}
switch (particleSystemRenderer.renderMode)
{
case ParticleSystemRenderMode.Billboard:
// Billboard to camera
curGO.transform.LookAt(curGO.transform.position + cam.transform.rotation * Vector3.forward, cam.transform.rotation * Vector3.up);
rotationCorrection = -1f;
break;
case ParticleSystemRenderMode.Mesh:
curGO.transform.rotation = Quaternion.identity;
// For mesh pivots, Z is Y and Y is Z
pivot.z = particleSystemRenderer.pivot.y * -1f;
pivot.y = particleSystemRenderer.pivot.z * -1f;
pivot *= curParticle.GetCurrentSize(particleSys);
break;
default:
Debug.LogError("Unsupported render mode " + particleSystemRenderer.renderMode);
break;
}
// Apply rotation
curGO.transform.Rotate(new Vector3(curParticle.rotation3D.x, curParticle.rotation3D.y, curParticle.rotation3D.z * rotationCorrection));
// Apply scale
curGO.transform.localScale = size;
// Apply pivot
pivot = Vector3.Scale(pivot, size);
curGO.transform.position += (curGO.transform.right * pivot.x);
curGO.transform.position += (curGO.transform.up * pivot.y);
curGO.transform.position += (curGO.transform.forward * pivot.z * -1f);
// Apply texture sheet animation
ParticleSystem.TextureSheetAnimationModule texModule = particleSys.textureSheetAnimation;
if (texModule.enabled)
{
SubUVTextureInfo subUV = new SubUVTextureInfo(texModule, curParticle);
switch (texModule.animation)
{
case ParticleSystemAnimationType.WholeSheet:
curParticleCollider.gameObject.GetComponent <MeshRenderer>().material.mainTextureScale = new Vector2(1 / subUV.columns, 1 / subUV.rows);
curParticleCollider.gameObject.GetComponent <MeshRenderer>().material.mainTextureOffset = new Vector2(subUV.currentColumn / subUV.columns, (subUV.rows - subUV.currentRow - 1) / subUV.rows);
break;
case ParticleSystemAnimationType.SingleRow:
Debug.Log("Single Row texture sheet animations currently not supported.");
break;
default:
Debug.Log("Unsupported texture sheet animation animation type.");
break;
}
}
// Apply color
Color particleColor = curParticle.GetCurrentColor(particleSys);
Material mat = curGO.GetComponent <MeshRenderer>().material;
Color matColor = particleSystemRenderer.material.GetColor(TINT_COLOR);
curGO.GetComponent <MeshRenderer>().material.SetColor(TINT_COLOR, particleColor * matColor);
}
}
