public int GetParticleCount()
{
if (Initialised)
{
return(LPAPIParticleGroups.GetParticlesInGroupCount(this.GetPtr()));
}
return(0);
}
/// <summary>Get the position of particle group Note: only works with rigid groups</summary>
public Vector2 GetPosition()
{
IntPtr particlesPointer = LPAPIParticleGroups.GetParticleGroupPosition(ThingPtr);
float[] particlesArray = new float[2];
Marshal.Copy(particlesPointer, particlesArray, 0, 2);
return(new Vector2(particlesArray[0], particlesArray[1]));
}
/// <summary>Create this particle group in the simulation with a shape pointer you already have
/// Note: Used for concave fixtures or fixtures with more than 8 vertices
/// They are broken up into several fixtures </summary>
protected override void InitialiseWithShape(IntPtr shape)
{
SubPtrs.Add(LPAPIParticleGroups.CreateParticleGroup(sys.GetPtr(), getPartNum(), getGroupNum(), 0f, Strenght, AngularVelocity
, LinearVelocity.x, LinearVelocity.y
, shape
, (int)(_Color.r * 255f), (int)(_Color.g * 255f), (int)(_Color.b * 255f), (int)(_Color.a * 255f)
, Stride, LifeTime, UserData)
);
}
IEnumerator SplitGroup()
{
// Splitting a group can be costly so do not perform this operation each frame
while (LPAPIParticleSystems.GetNumberOfParticles(sys.GetPtr()) > 0)
{
LPAPIParticleGroups.SplitParticleGroup(FindObjectOfType <LPManager>().ParticleSystems[0].GetPtr(), FindObjectOfType <LPParticleGroup>().GetPtr());
IntPtr largestGroup = sys.GetLargestGroupDataFromPlugin();
GetComponent <LPParticleGroup>().SetThingPtr(largestGroup);
yield return(new WaitForSeconds(1f));
}
}
/// <summary>Get the center of particle group</summary>
public Vector2 GetCenter()
{
if (ThingPtr == IntPtr.Zero)
{
return(new Vector2(999, 999));
}
IntPtr particlesPointer = LPAPIParticleGroups.GetParticleGroupCentroid(ThingPtr);
float[] particlesArray = new float[2];
Marshal.Copy(particlesPointer, particlesArray, 0, 2);
return(new Vector2(particlesArray[0], particlesArray[1]));
}
private void MoveGroupToMousePosition()
{
// Move towards the mouse position
if (Input.touchCount > 0 || Input.GetMouseButton(0))
{
Vector3 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
Vector3 diff = mousePos - transform.position;
diff.Normalize();
diff.Scale(new Vector3(10000, 10000, 10000));
LPAPIParticleGroups.ApplyForceToParticleGroup(GetComponent <LPParticleGroup>().GetPtr(), diff.x, diff.y);
}
}
private IEnumerator Melt()
{
yield return(new WaitForSeconds(waittime));
if (mat != null)
{
LPAPIParticleGroups.SetParticleFlagsInGroup(sys.GetPtr(), group.GetPtr(), mat.GetInt());
}
else
{
LPAPIParticleGroups.SetParticleFlagsInGroup(sys.GetPtr(), group.GetPtr(), 0);
}
Debug.Log("flags set");
}
/// <summary>Create this particle group in the simulation</summary>
public void Initialise(LPParticleSystem s)
{
sys = s;
IntPtr shape = GetShape();
ThingPtr = LPAPIParticleGroups.CreateParticleGroup(sys.GetPtr(), getPartNum(), getGroupNum(), 0f, Strenght, AngularVelocity
, LinearVelocity.x, LinearVelocity.y
, shape
, (int)(_Color.r * 255f), (int)(_Color.g * 255f), (int)(_Color.b * 255f), (int)(_Color.a * 255f)
, Stride, LifeTime, UserData);
LPAPIUtility.ReleaseShape(shape);
if (SubPtrs != null && ParticlesMaterial != null && (ParticlesMaterial.elastic || ParticlesMaterial.spring))
{
foreach (IntPtr groupptr in SubPtrs)
{
LPAPIParticleGroups.JoinParticleGroups(sys.GetPtr(), ThingPtr, groupptr);
}
}
}
protected override void DoSpawn()
{
Vector3 diff = getdiff();
if (!SpawnOnlyOneParticle)
{
pg.LinearVelocity = new Vector2(diff.x, diff.y);
pg.Initialise(lpman.ParticleSystems[pg.ParticleSystemImIn]);
if (JoinGroups)
{
if (first)
{
first = false;
}
else
{
LPAPIParticleGroups.JoinParticleGroups(lpman.ParticleSystems[pg.ParticleSystemImIn].GetPtr()
, lastgroup, pg.GetPtr());
}
lastgroup = pg.GetPtr();
}
}
else
{
int mat = 0;
if (pg.ParticlesMaterial != null)
{
mat = pg.ParticlesMaterial.GetInt();
}
LPAPIParticles.CreateParticleInSystem(lpman.ParticleSystems[pg.ParticleSystemImIn].GetPtr()
, mat, transform.position.x, transform.position.y, diff.x, diff.y
, (int)(pg._Color.r * 255f), (int)(pg._Color.g * 255f), (int)(pg._Color.b * 255f), (int)(pg._Color.a * 255f)
, pg.LifeTime);
}
}
/// <summary>Delete this particle group. In the simulation and in unity</summary>
public override void Delete()
{
LPAPIParticleGroups.DeleteParticlesInGroup(ThingPtr);
Destroy(this);
}
