/// <summary>
/// Removes the native geometry from the simulation.
/// </summary>
protected override void OnDestroy()
{
if (m_geometry != null && GetSimulation() != null)
{
GetSimulation().remove(m_geometry);
}
if (Simulation.Instance != null)
{
Simulation.Instance.StepCallbacks.PostSynchronizeTransforms -= OnPostSynchronizeTransformsCallback;
}
if (m_shape != null)
{
m_shape.Dispose();
}
m_shape = null;
if (m_geometry != null)
{
m_geometry.Dispose();
}
m_geometry = null;
m_transform = null;
base.OnDestroy();
}
/// <summary>
/// Merges all source objects to one mesh and creates a native trimesh.
/// </summary>
/// <param name="meshes">Source meshes.</param>
/// <returns>Native trimesh.</returns>
private agxCollide.Geometry Create(UnityEngine.Mesh[] meshes)
{
var geometry = new agxCollide.Geometry();
if (m_precomputedCollisionMeshes.Count > 0)
{
// The vertices are assumed to be stored in local coordinates of the
// given transform. For the scale to be correct w
var toWorld = transform.localToWorldMatrix;
Func <Vector3, Vector3> transformer = v =>
{
return(transform.InverseTransformDirection(toWorld * v.ToLeftHanded()));
};
var mode = Options != null ? Options.Mode : CollisionMeshOptions.MeshMode.Trimesh;
for (int i = 0; i < m_precomputedCollisionMeshes.Count; ++i)
{
var collisionMesh = m_precomputedCollisionMeshes[i];
if (collisionMesh == null)
{
Debug.LogWarning($"AGXUnity.Collide.Mesh: Null precomputed collision mesh at index {i}.", this);
continue;
}
var shape = collisionMesh.CreateShape(transformer, mode);
if (shape == null)
{
Debug.LogWarning($"AGXUnity.Collide.Mesh: Precomputed collision mesh at index {i} resulted in an invalid shape.", this);
continue;
}
geometry.add(shape, GetNativeGeometryOffset());
}
}
else
{
if (m_precomputedCollisionMeshes.Count > 0)
{
Debug.LogWarning("AGXUnity.Mesh: Failed to create shapes from precomputed data - using Trimesh as fallback.", this);
}
var merger = MeshMerger.Merge(transform, meshes);
geometry.add(new agxCollide.Trimesh(merger.Vertices,
merger.Indices,
"AGXUnity.Mesh: Trimesh"),
GetNativeGeometryOffset());
}
if (geometry.getShapes().Count == 0)
{
geometry.Dispose();
geometry = null;
}
return(geometry);
}
