Examples with ModelStatistics net.drewke.tdme.engine.subsystems.object.ModelUtilitiesInternal.ModelStatistics used on opensource projects

Example 1 with ModelStatistics

use of net.drewke.tdme.engine.subsystems.object.ModelUtilitiesInternal.ModelStatistics in project tdme by andreasdr.

the class DAEReader method readLevel.

/**
	 * Reads Collada DAE file level
	 * @param path name
	 * @param file name
	 * @throws Exception
	 * @return Model instance
	 */
public static LevelEditorLevel readLevel(String pathName, String fileName) throws Exception {
    // (re)create tm files folder
    File tmFilesFolder = new File(pathName + "/" + fileName + "-models");
    if (tmFilesFolder.exists()) {
        tmFilesFolder.delete();
    }
    tmFilesFolder.mkdir();
    // create level
    LevelEditorLevel levelEditorLevel = new LevelEditorLevel();
    LevelPropertyPresets.getInstance().setDefaultLevelProperties(levelEditorLevel);
    // load dae xml document
    DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
    Document document = builder.parse(FileSystem.getInstance().getInputStream(pathName, fileName));
    Element xmlRoot = document.getDocumentElement();
    // authoring tool
    AuthoringTool authoringTool = getAuthoringTool(xmlRoot);
    // up vector and rotation order
    UpVector upVector = getUpVector(xmlRoot);
    RotationOrder rotationOrder = null;
    switch(upVector) {
        case Y_UP:
            rotationOrder = RotationOrder.ZYX;
        case Z_UP:
            rotationOrder = RotationOrder.YZX;
    }
    levelEditorLevel.setRotationOrder(rotationOrder);
    // parse scene from xml
    String xmlSceneId = null;
    Element xmlScene = getChildrenByTagName(xmlRoot, "scene").get(0);
    for (Element xmlInstanceVisualscene : getChildrenByTagName(xmlScene, "instance_visual_scene")) {
        xmlSceneId = xmlInstanceVisualscene.getAttribute("url").substring(1);
    }
    // check for xml scene id
    if (xmlSceneId == null) {
        throw new ModelFileIOException("No scene id found");
    }
    // parse visual scenes
    Element xmlLibraryVisualScenes = getChildrenByTagName(xmlRoot, "library_visual_scenes").get(0);
    for (Element xmlLibraryVisualScene : getChildrenByTagName(xmlLibraryVisualScenes, "visual_scene")) {
        String xmlVisualSceneId = xmlLibraryVisualScene.getAttribute("id");
        if (xmlVisualSceneId.equals(xmlSceneId)) {
            // default FPS
            float fps = 30f;
            // parse frames per second
            List<Element> xmlExtraNodes = getChildrenByTagName(xmlLibraryVisualScene, "extra");
            if (xmlExtraNodes.isEmpty() == false) {
                Element xmlExtraNode = xmlExtraNodes.get(0);
                for (Element xmlTechnique : getChildrenByTagName(xmlExtraNode, "technique")) {
                    List<Element> xmlFrameRateNodes = getChildrenByTagName(xmlTechnique, "frame_rate");
                    if (xmlFrameRateNodes.isEmpty() == false) {
                        fps = Float.parseFloat(xmlFrameRateNodes.get(0).getTextContent());
                        break;
                    }
                }
            }
            // visual scene root nodes
            LevelEditorEntityLibrary entityLibrary = levelEditorLevel.getEntityLibrary();
            LevelEditorEntity emptyEntity = null;
            int nodeIdx = 0;
            for (Element xmlNode : getChildrenByTagName(xmlLibraryVisualScene, "node")) {
                // derive model name from node id
                String modelName = xmlNode.getAttribute("id");
                // replace blender _|-NUMBER, not sure if this is a good idea for all cases, we will see
                modelName = modelName.replaceAll("[\\-\\_]{1}+[0-9]+$", "");
                // replace number at the end still, not sure if this is a good idea for all cases, we will see
                modelName = modelName.replaceAll("[0-9]+$", "");
                // check if name is available, if not extend with numbers :DDD
                boolean haveName = entityLibrary.getEntityCount() == 0;
                if (haveName == false) {
                    for (int i = 0; i < 10000; i++) {
                        haveName = true;
                        String modelNameTry = modelName + (i == 0 ? "" : String.valueOf(i));
                        for (int entityIdx = 0; entityIdx < entityLibrary.getEntityCount(); entityIdx++) {
                            LevelEditorEntity entity = entityLibrary.getEntityAt(entityIdx);
                            if (entity.getName().equals(modelNameTry) == true) {
                                haveName = false;
                                break;
                            }
                        }
                        if (haveName == true) {
                            modelName = modelNameTry;
                            break;
                        }
                    }
                }
                // do we have a name now?
                if (haveName == false) {
                    // nope, cant imagine this will happen 
                    System.out.println("DAEReader::readLevel(): Skipping model '" + modelName + "' as no name could be created for it.");
                    continue;
                }
                // 	create model
                Model model = new Model(pathName + File.separator + fileName + '-' + modelName, fileName + '-' + modelName, upVector, rotationOrder, null);
                // import matrix
                setupModelImportRotationMatrix(xmlRoot, model);
                Matrix4x4 modelImportRotationMatrix = new Matrix4x4(model.getImportTransformationsMatrix());
                setupModelImportScaleMatrix(xmlRoot, model);
                // translation, scaling, rotation
                Vector3 translation = new Vector3();
                Vector3 scale = new Vector3();
                Vector3 rotation = new Vector3();
                Vector3 xAxis = new Vector3();
                Vector3 yAxis = new Vector3();
                Vector3 zAxis = new Vector3();
                // set up local transformations matrix
                Matrix4x4 nodeTransformationsMatrix = null;
                List<Element> xmlMatrixElements = getChildrenByTagName(xmlNode, "matrix");
                if (xmlMatrixElements.size() == 1) {
                    String xmlMatrix = xmlMatrixElements.get(0).getTextContent();
                    StringTokenizer t = new StringTokenizer(xmlMatrix, " \n\r");
                    // 
                    nodeTransformationsMatrix = new Matrix4x4(Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken()), Float.parseFloat(t.nextToken())).transpose();
                }
                // check if we have node transformations matrix
                if (nodeTransformationsMatrix == null) {
                    throw new ModelFileIOException("missing node transformations matrix for node " + xmlNode.getAttribute("id"));
                }
                // extract coordinate system axes
                nodeTransformationsMatrix.getAxes(xAxis, yAxis, zAxis);
                nodeTransformationsMatrix.getTranslation(translation);
                nodeTransformationsMatrix.getScale(scale);
                // normalize coordinate axes
                xAxis.normalize();
                yAxis.normalize();
                zAxis.normalize();
                // write back normalized x axis
                nodeTransformationsMatrix.setAxes(xAxis, yAxis, zAxis);
                // TODO: move me into Matrix4x4 decomposing code?
                if ((upVector == UpVector.Y_UP && Vector3.computeDotProduct(Vector3.computeCrossProduct(xAxis, yAxis), zAxis) < 0.0f) || (upVector == UpVector.Z_UP && Vector3.computeDotProduct(Vector3.computeCrossProduct(xAxis, zAxis), yAxis) < 0.0f)) {
                    // negate axes
                    xAxis.scale(-1f);
                    yAxis.scale(-1f);
                    zAxis.scale(-1f);
                    // and write back to node transformation matrices
                    nodeTransformationsMatrix.setAxes(xAxis, yAxis, zAxis);
                    // scale
                    scale.scale(-1f);
                }
                // determine rotation
                nodeTransformationsMatrix.computeEulerAngles(rotation);
                // apply model import matrix
                modelImportRotationMatrix.multiply(scale, scale);
                modelImportRotationMatrix.multiply(rotation, rotation);
                model.getImportTransformationsMatrix().multiply(translation, translation);
                // set up frames per seconds
                model.setFPS(fps);
                // read sub groups
                Group group = readVisualSceneNode(authoringTool, pathName, model, null, xmlRoot, xmlNode, fps);
                if (group != null) {
                    group.getTransformationsMatrix().identity();
                    model.getSubGroups().put(group.getId(), group);
                    model.getGroups().put(group.getId(), group);
                }
                // set up joints
                ModelHelper.setupJoints(model);
                // fix animation length
                ModelHelper.fixAnimationLength(model);
                // prepare for indexed rendering
                ModelHelper.prepareForIndexedRendering(model);
                // check if empty model
                EntityType entityType = EntityType.MODEL;
                ModelStatistics modelStatistics = ModelUtilities.computeModelStatistics(model);
                if (modelStatistics.getOpaqueFaceCount() == 0 && modelStatistics.getTransparentFaceCount() == 0) {
                    entityType = EntityType.EMPTY;
                }
                // level editor entity
                LevelEditorEntity levelEditorEntity = null;
                // model
                if (entityType == EntityType.MODEL) {
                    // check if we have that model already
                    for (int i = 0; i < levelEditorLevel.getEntityLibrary().getEntityCount(); i++) {
                        LevelEditorEntity levelEditorEntityCompare = levelEditorLevel.getEntityLibrary().getEntityAt(i);
                        if (levelEditorEntityCompare.getType() != EntityType.MODEL)
                            continue;
                        if (ModelUtilities.equals(model, levelEditorEntityCompare.getModel()) == true) {
                            levelEditorEntity = levelEditorEntityCompare;
                            break;
                        }
                    }
                    // create level editor model, if not yet exists
                    if (levelEditorEntity == null) {
                        // save model
                        TMWriter.write(model, pathName + "/" + fileName + "-models", modelName + ".tm");
                        // create level editor entity
                        levelEditorEntity = entityLibrary.addModel(nodeIdx++, modelName, modelName, pathName + "/" + fileName + "-models", modelName + ".tm", new Vector3());
                    }
                } else // empty
                if (entityType == EntityType.EMPTY) {
                    if (emptyEntity == null) {
                        emptyEntity = entityLibrary.addEmpty(nodeIdx++, "Default Empty", "");
                    }
                    levelEditorEntity = emptyEntity;
                } else {
                    System.out.println("DAEReader::readLevel(): unknown entity type. Skipping");
                    continue;
                }
                // level editor object transformations
                Transformations levelEditorObjectTransformations = new Transformations();
                levelEditorObjectTransformations.getTranslation().set(translation);
                levelEditorObjectTransformations.getRotations().add(new Rotation(rotation.getArray()[rotationOrder.getAxis0VectorIndex()], rotationOrder.getAxis0()));
                levelEditorObjectTransformations.getRotations().add(new Rotation(rotation.getArray()[rotationOrder.getAxis1VectorIndex()], rotationOrder.getAxis1()));
                levelEditorObjectTransformations.getRotations().add(new Rotation(rotation.getArray()[rotationOrder.getAxis2VectorIndex()], rotationOrder.getAxis2()));
                levelEditorObjectTransformations.getScale().set(scale);
                levelEditorObjectTransformations.update();
                // level editor object
                LevelEditorObject object = new LevelEditorObject(xmlNode.getAttribute("id"), xmlNode.getAttribute("id"), levelEditorObjectTransformations, levelEditorEntity);
                // add object to level
                levelEditorLevel.addObject(object);
            }
        }
    }
    // save level
    LevelFileExport.export(pathName + "/" + fileName + ".tl", levelEditorLevel);
    //
    return levelEditorLevel;
}