public void OnSceneGUI()
{
if (Event.current.type == EventType.Repaint)
{
ObiRope rope = cursor.GetComponent <ObiRope>();
ObiDistanceConstraintBatch distanceBatch = rope.DistanceConstraints.GetFirstBatch();
Handles.color = Color.yellow;
int constraint = rope.GetConstraintIndexAtNormalizedCoordinate(cursor.normalizedCoord);
Vector3 pos1 = rope.GetParticlePosition(distanceBatch.springIndices[constraint * 2]);
Vector3 pos2 = rope.GetParticlePosition(distanceBatch.springIndices[constraint * 2 + 1]);
if (cursor.direction)
{
Handles.DrawWireDisc(pos1, pos2 - pos1, rope.thickness * 2);
Vector3 direction = pos2 - pos1;
if (direction != Vector3.zero)
{
Handles.ArrowHandleCap(0, pos1, Quaternion.LookRotation(direction), 0.2f, EventType.Repaint);
}
}
else
{
Handles.DrawWireDisc(pos2, pos1 - pos2, rope.thickness * 2);
Vector3 direction = pos1 - pos2;
if (direction != Vector3.zero)
{
Handles.ArrowHandleCap(0, pos2, Quaternion.LookRotation(direction), 0.2f, EventType.Repaint);
}
}
}
}
private static void DrawGizmos(ObiRopeCursor cursor, GizmoType gizmoType)
{
var rope = cursor.GetComponent <ObiRope>();
if (rope.solver != null)
{
Gizmos.color = new Color(1, 0.5f, 0, 0.75f);
// draw source particle:
int sourceIndex = cursor.sourceParticleIndex;
if (sourceIndex >= 0 && rope.IsParticleActive(rope.solver.particleToActor[sourceIndex].indexInActor))
{
Vector3 pos = rope.GetParticlePosition(sourceIndex);
Gizmos.DrawWireSphere(pos, HandleUtility.GetHandleSize(pos) * 0.4f);
}
// draw cursor:
var element = cursor.cursorElement;
if (element != null && element.particle1 != element.particle2)
{
Vector3 pos = rope.GetParticlePosition(cursor.direction ? element.particle1 : element.particle2);
Vector3 pos2 = rope.GetParticlePosition(cursor.direction ? element.particle2 : element.particle1);
Vector3 direction = pos2 - pos;
float size = HandleUtility.GetHandleSize(pos) * 0.4f;
Gizmos.matrix = Matrix4x4.TRS(pos, Quaternion.LookRotation(direction), Vector3.one * size);
DrawArrow();
}
}
}
