private int AddParticles(int amount)
{
// get constraint batches:
ObiDistanceConstraintBatch distanceBatch = rope.DistanceConstraints.GetFirstBatch();
ObiBendConstraintBatch bendingBatch = rope.BendingConstraints.GetFirstBatch();
amount = Mathf.Min(amount, rope.PooledParticles);
// if no particles can be added, just return.
if (amount == 0)
{
return(0);
}
// find current constraint and hot constraint:
int constraint = rope.GetConstraintIndexAtNormalizedCoordinate(normalizedCoord);
rope.DistanceConstraints.RemoveFromSolver(null);
rope.BendingConstraints.RemoveFromSolver(null);
// find indices of first N inactive particles. we'll need them to create new rope.
// the first and last particle indices in this array will be the ones in the current constraint.
int[] newParticleIndices = new int[amount + 2];
for (int i = 0, j = 0; i < amount && j < rope.TotalParticles; ++j)
{
if (!rope.active[j])
{
newParticleIndices[i + 1] = j;
rope.active[j] = true;
rope.invMasses[j] = 1.0f / ObiRope.DEFAULT_PARTICLE_MASS;
++i;
}
}
// TODO: closed curves have a different amount of bend constraints!
Vector4[] zeroVelocity = new Vector4[] { Vector4.zero };
Vector4[] refPosition1 = new Vector4[1];
Vector4[] refPosition2 = new Vector4[1];
if (direction)
{
// fill first and last indices of the new particles array with the ones in the current constraint:
newParticleIndices[0] = distanceBatch.springIndices[constraint * 2];
newParticleIndices[newParticleIndices.Length - 1] = distanceBatch.springIndices[constraint * 2 + 1];
// update normalized coord:
normalizedCoord = constraint / (float)(distanceBatch.ConstraintCount + amount);
Oni.GetParticlePositions(rope.Solver.OniSolver, refPosition1, 1, rope.particleIndices[newParticleIndices[0]]);
Oni.GetParticlePositions(rope.Solver.OniSolver, refPosition2, 1, rope.particleIndices[newParticleIndices[newParticleIndices.Length - 1]]);
// update constraints:
distanceBatch.SetParticleIndex(constraint, newParticleIndices[newParticleIndices.Length - 2], ObiDistanceConstraintBatch.DistanceIndexType.First, rope.Closed);
bendingBatch.SetParticleIndex(constraint, newParticleIndices[newParticleIndices.Length - 2], ObiBendConstraintBatch.BendIndexType.First, rope.Closed);
bendingBatch.SetParticleIndex(constraint - 1, newParticleIndices[1], ObiBendConstraintBatch.BendIndexType.Second, rope.Closed);
// add constraints and particles:
for (int i = 1; i < newParticleIndices.Length - 1; ++i)
{
Vector4[] pos = new Vector4[] { refPosition1[0] + (refPosition2[0] - refPosition1[0]) * i / (float)(newParticleIndices.Length - 1) * 0.5f };
Oni.SetParticlePositions(rope.Solver.OniSolver, pos, 1, rope.particleIndices[newParticleIndices[i]]);
Oni.SetParticleVelocities(rope.Solver.OniSolver, zeroVelocity, 1, rope.particleIndices[newParticleIndices[i]]);
int newConstraintIndex = constraint + i - 1;
distanceBatch.InsertConstraint(newConstraintIndex, newParticleIndices[i - 1], newParticleIndices[i], rope.InterparticleDistance, 0, 0);
bendingBatch.InsertConstraint(newConstraintIndex, newParticleIndices[i - 1], newParticleIndices[i + 1], newParticleIndices[i], 0, 0, 0);
}
}
else
{
// fill first and last indices of the new particles array with the ones in the current constraint:
newParticleIndices[0] = distanceBatch.springIndices[constraint * 2 + 1];
newParticleIndices[newParticleIndices.Length - 1] = distanceBatch.springIndices[constraint * 2];
// update normalized coord:
normalizedCoord = (constraint + amount) / (float)(distanceBatch.ConstraintCount + amount);
Oni.GetParticlePositions(rope.Solver.OniSolver, refPosition1, 1, rope.particleIndices[newParticleIndices[0]]);
Oni.GetParticlePositions(rope.Solver.OniSolver, refPosition2, 1, rope.particleIndices[newParticleIndices[newParticleIndices.Length - 1]]);
// update constraints:
distanceBatch.SetParticleIndex(constraint, newParticleIndices[newParticleIndices.Length - 2], ObiDistanceConstraintBatch.DistanceIndexType.Second, rope.Closed);
bendingBatch.SetParticleIndex(constraint, newParticleIndices[1], ObiBendConstraintBatch.BendIndexType.First, rope.Closed);
bendingBatch.SetParticleIndex(constraint - 1, newParticleIndices[newParticleIndices.Length - 2], ObiBendConstraintBatch.BendIndexType.Second, rope.Closed);
// add constraints and particles:
for (int i = 1; i < newParticleIndices.Length - 1; ++i)
{
Vector4[] pos = new Vector4[] { refPosition1[0] + (refPosition2[0] - refPosition1[0]) * i / (float)(newParticleIndices.Length - 1) * 0.5f };
Oni.SetParticlePositions(rope.Solver.OniSolver, pos, 1, rope.particleIndices[newParticleIndices[i]]);
Oni.SetParticleVelocities(rope.Solver.OniSolver, zeroVelocity, 1, rope.particleIndices[newParticleIndices[i]]);
distanceBatch.InsertConstraint(constraint + 1, newParticleIndices[i], newParticleIndices[i - 1], rope.InterparticleDistance, 0, 0);
bendingBatch.InsertConstraint(constraint, newParticleIndices[i + 1], newParticleIndices[i - 1], newParticleIndices[i], 0, 0, 0);
}
}
rope.DistanceConstraints.AddToSolver(null);
rope.BendingConstraints.AddToSolver(null);
rope.PushDataToSolver(ParticleData.ACTIVE_STATUS);
rope.UsedParticles += amount;
rope.RegenerateRestPositions();
return(amount);
}
public override void OnInspectorGUI()
{
serializedObject.Update();
GUI.enabled = rope.Initialized;
EditorGUI.BeginChangeCheck();
editMode = GUILayout.Toggle(editMode, new GUIContent("Edit particles", Resources.Load <Texture2D>("EditParticles")), "LargeButton");
if (EditorGUI.EndChangeCheck())
{
SceneView.RepaintAll();
}
GUI.enabled = true;
EditorGUILayout.LabelField("Status: " + (rope.Initialized ? "Initialized":"Not initialized"));
GUI.enabled = (rope.ropePath != null && rope.Section != null);
if (GUILayout.Button("Initialize"))
{
if (!rope.Initialized)
{
CoroutineJob job = new CoroutineJob();
routine = EditorCoroutine.StartCoroutine(job.Start(rope.GeneratePhysicRepresentationForMesh()));
EditorSceneManager.MarkSceneDirty(EditorSceneManager.GetActiveScene());
}
else
{
if (EditorUtility.DisplayDialog("Actor initialization", "Are you sure you want to re-initialize this actor?", "Ok", "Cancel"))
{
CoroutineJob job = new CoroutineJob();
routine = EditorCoroutine.StartCoroutine(job.Start(rope.GeneratePhysicRepresentationForMesh()));
EditorSceneManager.MarkSceneDirty(EditorSceneManager.GetActiveScene());
}
}
}
GUI.enabled = true;
GUI.enabled = rope.Initialized;
if (GUILayout.Button("Set Rest State"))
{
Undo.RecordObject(rope, "Set rest state");
rope.PullDataFromSolver(ParticleData.POSITIONS | ParticleData.VELOCITIES);
}
if (GUILayout.Button("Set Particles to Layer"))
{
if (EditorUtility.DisplayDialog("Particle phases", "This will reset all per-particle layer values to the GameObject layer. Are you sure?", "Ok", "Cancel"))
{
Undo.RecordObject(rope, "Set particles to layer");
for (int i = 0; i < rope.phases.Length; i++)
{
rope.phases[i] = Oni.MakePhase(rope.gameObject.layer, rope.SelfCollisions?Oni.ParticlePhase.SelfCollide:0);
}
rope.PushDataToSolver(ParticleData.PHASES);
}
}
GUI.enabled = true;
if (rope.ropePath == null)
{
EditorGUILayout.HelpBox("Rope path spline is missing.", MessageType.Info);
}
if (rope.Section == null)
{
EditorGUILayout.HelpBox("Rope section is missing.", MessageType.Info);
}
EditorGUI.BeginChangeCheck();
ObiSolver solver = EditorGUILayout.ObjectField("Solver", rope.Solver, typeof(ObiSolver), true) as ObiSolver;
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(rope, "Set solver");
rope.Solver = solver;
}
bool newSelfCollisions = EditorGUILayout.Toggle(new GUIContent("Self collisions", "Enabling this allows particles generated by this actor to interact with each other."), rope.SelfCollisions);
if (rope.SelfCollisions != newSelfCollisions)
{
Undo.RecordObject(rope, "Set self collisions");
rope.SelfCollisions = newSelfCollisions;
}
Editor.DrawPropertiesExcluding(serializedObject, "m_Script", "chainLinks");
bool newThicknessFromParticles = EditorGUILayout.Toggle(new GUIContent("Thickness from particles", "Enabling this will allow particle radius to influence rope thickness. Use it for variable-thickness ropes."), rope.ThicknessFromParticles);
if (rope.ThicknessFromParticles != newThicknessFromParticles)
{
Undo.RecordObject(rope, "Set thickness from particles");
rope.ThicknessFromParticles = newThicknessFromParticles;
}
float newTwist = EditorGUILayout.FloatField(new GUIContent("Section twist", "Amount of twist applied to each section, in degrees."), rope.SectionTwist);
if (rope.SectionTwist != newTwist)
{
Undo.RecordObject(rope, "Set section twist");
rope.SectionTwist = newTwist;
}
EditorGUILayout.Space();
EditorGUILayout.LabelField("Rendering", EditorStyles.boldLabel);
ObiRope.RenderingMode newRenderMode = (ObiRope.RenderingMode)EditorGUILayout.EnumPopup(rope.RenderMode);
if (rope.RenderMode != newRenderMode)
{
Undo.RecordObject(rope, "Set rope render mode");
rope.RenderMode = newRenderMode;
}
float newUVAnchor = EditorGUILayout.Slider(new GUIContent("UV anchor", "Normalized point along the rope where the V texture coordinate starts. Useful when changing rope length."), rope.UVAnchor, 0, 1);
if (rope.UVAnchor != newUVAnchor)
{
Undo.RecordObject(rope, "Set rope uv anchor");
rope.UVAnchor = newUVAnchor;
}
// Render-mode specific stuff:
if (rope.RenderMode != ObiRope.RenderingMode.Chain)
{
ObiRopeSection newSection = EditorGUILayout.ObjectField(new GUIContent("Section", "Section asset to be extruded along the rope path.")
, rope.Section, typeof(ObiRopeSection), false) as ObiRopeSection;
if (rope.Section != newSection)
{
Undo.RecordObject(rope, "Set rope section");
rope.Section = newSection;
}
float newThickness = EditorGUILayout.FloatField(new GUIContent("Section thickness scale", "Scales mesh thickness."), rope.SectionThicknessScale);
if (rope.SectionThicknessScale != newThickness)
{
Undo.RecordObject(rope, "Set rope section thickness");
rope.SectionThicknessScale = newThickness;
}
uint newSmoothness = (uint)EditorGUILayout.IntSlider(new GUIContent("Smoothness", "Level of smoothing applied to the rope path."), Convert.ToInt32(rope.Smoothing), 0, 3);
if (rope.Smoothing != newSmoothness)
{
Undo.RecordObject(rope, "Set smoothness");
rope.Smoothing = newSmoothness;
}
Vector2 newUVScale = EditorGUILayout.Vector2Field(new GUIContent("UV scale", "Scaling of the uv coordinates generated for the rope. The u coordinate wraps around the whole rope section, and the v spans the full length of the rope."), rope.UVScale);
if (rope.UVScale != newUVScale)
{
Undo.RecordObject(rope, "Set rope uv scale");
rope.UVScale = newUVScale;
}
bool newNormalizeV = EditorGUILayout.Toggle(new GUIContent("Normalize V", "Scaling of the uv coordinates generated for the rope. The u coordinate wraps around the whole rope section, and the v spans the full length of the rope."), rope.NormalizeV);
if (rope.NormalizeV != newNormalizeV)
{
Undo.RecordObject(rope, "Set normalize v");
rope.NormalizeV = newNormalizeV;
}
}
else
{
Vector3 newLinkScale = EditorGUILayout.Vector3Field(new GUIContent("Link scale", "Scale applied to each chain link."), rope.LinkScale);
if (rope.LinkScale != newLinkScale)
{
Undo.RecordObject(rope, "Set chain link scale");
rope.LinkScale = newLinkScale;
}
bool newRandomizeLinks = EditorGUILayout.Toggle(new GUIContent("Randomize links", "Toggling this on this causes each chain link to be selected at random from the set of provided links."), rope.RandomizeLinks);
if (rope.RandomizeLinks != newRandomizeLinks)
{
Undo.RecordObject(rope, "Set randomize links");
rope.RandomizeLinks = newRandomizeLinks;
}
EditorGUI.BeginChangeCheck();
EditorGUILayout.PropertyField(chainLinks, true);
if (EditorGUI.EndChangeCheck())
{
// update the chain representation in response to a change in available link templates:
serializedObject.ApplyModifiedProperties();
rope.GenerateProceduralChainLinks();
}
}
// Progress bar:
EditorCoroutine.ShowCoroutineProgressBar("Generating physical representation...", routine);
// Apply changes to the serializedProperty
if (GUI.changed)
{
serializedObject.ApplyModifiedProperties();
}
}