* @throws BlenderFileException
*/
public void loadConstraints(Structure objectStructure, BlenderContext blenderContext) throws BlenderFileException {
LOGGER.fine("Loading constraints.");
// reading influence ipos for the constraints
AnimationHelper animationHelper = blenderContext.getHelper(AnimationHelper.class);
Map<String, Map<String, Ipo>> constraintsIpos = new HashMap<String, Map<String, Ipo>>();
Pointer pActions = (Pointer) objectStructure.getFieldValue("action");
if (pActions.isNotNull()) {
List<Structure> actions = pActions.fetchData();
for (Structure action : actions) {
Structure chanbase = (Structure) action.getFieldValue("chanbase");
List<Structure> actionChannels = chanbase.evaluateListBase();
for (Structure actionChannel : actionChannels) {
Map<String, Ipo> ipos = new HashMap<String, Ipo>();
Structure constChannels = (Structure) actionChannel.getFieldValue("constraintChannels");
List<Structure> constraintChannels = constChannels.evaluateListBase();
for (Structure constraintChannel : constraintChannels) {
Pointer pIpo = (Pointer) constraintChannel.getFieldValue("ipo");
if (pIpo.isNotNull()) {
String constraintName = constraintChannel.getFieldValue("name").toString();
Ipo ipo = animationHelper.fromIpoStructure(pIpo.fetchData().get(0), blenderContext);
ipos.put(constraintName, ipo);
}
}
String actionName = actionChannel.getFieldValue("name").toString();
constraintsIpos.put(actionName, ipos);
}
}
}
// loading constraints connected with the object's bones
Pointer pPose = (Pointer) objectStructure.getFieldValue("pose");
if (pPose.isNotNull()) {
List<Structure> poseChannels = ((Structure) pPose.fetchData().get(0).getFieldValue("chanbase")).evaluateListBase();
for (Structure poseChannel : poseChannels) {
List<Constraint> constraintsList = new ArrayList<Constraint>();
Long boneOMA = Long.valueOf(((Pointer) poseChannel.getFieldValue("bone")).getOldMemoryAddress());
// the name is read directly from structure because bone might
// not yet be loaded
String name = blenderContext.getFileBlock(boneOMA).getStructure(blenderContext).getFieldValue("name").toString();
List<Structure> constraints = ((Structure) poseChannel.getFieldValue("constraints")).evaluateListBase();
for (Structure constraint : constraints) {
String constraintName = constraint.getFieldValue("name").toString();
Map<String, Ipo> ipoMap = constraintsIpos.get(name);
Ipo ipo = ipoMap == null ? null : ipoMap.get(constraintName);
if (ipo == null) {
float enforce = ((Number) constraint.getFieldValue("enforce")).floatValue();
ipo = animationHelper.fromValue(enforce);
}
constraintsList.add(new BoneConstraint(constraint, boneOMA, ipo, blenderContext));
}
blenderContext.addConstraints(boneOMA, constraintsList);
}
}
// loading constraints connected with the object itself
List<Structure> constraints = ((Structure) objectStructure.getFieldValue("constraints")).evaluateListBase();
if (constraints != null && constraints.size() > 0) {
Pointer pData = (Pointer) objectStructure.getFieldValue("data");
String dataType = pData.isNotNull() ? pData.fetchData().get(0).getType() : null;
List<Constraint> constraintsList = new ArrayList<Constraint>(constraints.size());
for (Structure constraint : constraints) {
String constraintName = constraint.getFieldValue("name").toString();
String objectName = objectStructure.getName();
Map<String, Ipo> objectConstraintsIpos = constraintsIpos.get(objectName);
Ipo ipo = objectConstraintsIpos != null ? objectConstraintsIpos.get(constraintName) : null;
if (ipo == null) {
float enforce = ((Number) constraint.getFieldValue("enforce")).floatValue();
ipo = animationHelper.fromValue(enforce);
}
constraintsList.add(this.createConstraint(dataType, constraint, objectStructure.getOldMemoryAddress(), ipo, blenderContext));
}
blenderContext.addConstraints(objectStructure.getOldMemoryAddress(), constraintsList);