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XML Loader's done
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Caspian Rychlik-Prince
parent
0fb0abe573
commit
ca0a661a62
2 changed files with 358 additions and 1 deletions
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@ -31,13 +31,27 @@
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*/
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package org.lwjgl.util.model.loader;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import org.lwjgl.util.model.Frame;
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import org.lwjgl.util.model.Model;
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import org.lwjgl.util.model.Skin;
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import org.lwjgl.util.model.Triangle;
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import org.lwjgl.util.model.Vertex;
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import org.lwjgl.util.vector.Matrix4f;
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import org.lwjgl.util.vector.Vector2f;
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import org.lwjgl.util.vector.Vector3f;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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/**
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* $Id$
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*
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* Loads a Model from an XML document.
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* Loads a Model from an XML document. Construct with an XML Document as the argument,
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* and then retrieve the Model by calling load().
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*
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* @author $Author$
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* @version $Revision$
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@ -60,6 +74,191 @@ public class Loader {
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* @throws Exception
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*/
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public Model load() throws Exception {
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return new Model(
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XMLUtil.getString(src.getDocumentElement(), "material"),
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loadVertices(),
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loadTriangles(),
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loadAnimations(XMLUtil.getInt(src.getDocumentElement(), "bones"))
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);
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}
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/**
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* Load all the Vertices
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* @return Vertex[]
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* @throws Exception
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*/
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private Vertex[] loadVertices() throws Exception {
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List vertexElements = XMLUtil.getChildren(src.getDocumentElement(), "vertex");
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Vertex[] vertices = new Vertex[vertexElements.size()];
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int vertexCount = 0;
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for (Iterator i = vertexElements.iterator(); i.hasNext(); ) {
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Element vertexElement = (Element) i.next();
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vertices[vertexCount++] = loadVertex(vertexElement);
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}
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return vertices;
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}
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/**
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* Load all the Triangles
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* @return Triangle[]
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* @throws Exception
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*/
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private Triangle[] loadTriangles() throws Exception {
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List triangleElements = XMLUtil.getChildren(src.getDocumentElement(), "triangle");
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Triangle[] triangles = new Triangle[triangleElements.size()];
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int triangleCount = 0;
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for (Iterator i = triangleElements.iterator(); i.hasNext(); ) {
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Element triangleElement = (Element) i.next();
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triangles[triangleCount++] = loadTriangle(triangleElement);
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}
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return triangles;
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}
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/**
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* Load all the animations
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* @param numBones The number of bones in the animations
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* @return Map of animation names to Frame[] animations
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* @throws Exception
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*/
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private Map loadAnimations(int numBones) throws Exception {
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List animationElements = XMLUtil.getChildren(src.getDocumentElement(), "animation");
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Map animations = new HashMap(animationElements.size());
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for (Iterator i = animationElements.iterator(); i.hasNext(); ) {
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Element animationElement = (Element) i.next();
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animations.put(XMLUtil.getString(animationElement, "name"), loadAnimation(animationElement, numBones));
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}
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return animations;
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}
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/**
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* Load a Vertex from XML
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* @param vertexElement
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* @return a Vertex
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* @throws Exception
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*/
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private Vertex loadVertex(Element vertexElement) throws Exception {
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List skinElements = XMLUtil.getChildren(vertexElement, "skin");
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Skin[] skins = new Skin[skinElements.size()];
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int skinCount = 0;
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for (Iterator i = skinElements.iterator(); i.hasNext(); ) {
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Element skinElement = (Element) i.next();
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skins[skinCount++] = loadSkin(skinElement);
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}
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return new Vertex(
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new Vector3f(
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XMLUtil.getFloat(vertexElement, "x"),
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XMLUtil.getFloat(vertexElement, "y"),
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XMLUtil.getFloat(vertexElement, "z")
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),
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new Vector3f(
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XMLUtil.getFloat(vertexElement, "nx"),
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XMLUtil.getFloat(vertexElement, "ny"),
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XMLUtil.getFloat(vertexElement, "nz")
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),
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new Vector2f(
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XMLUtil.getFloat(vertexElement, "u"),
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XMLUtil.getFloat(vertexElement, "v")
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),
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skins
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);
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}
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/**
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* Load a Skin from XML
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* @param element
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* @return a Skin
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* @throws Exception
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*/
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private Skin loadSkin(Element element) throws Exception {
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return new Skin(
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XMLUtil.getInt(element, "bone"),
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XMLUtil.getFloat(element, "weight")
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);
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}
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/**
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* Load a Triangle from XML
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* @param element
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* @return a Triangle
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* @throws Exception
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*/
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private Triangle loadTriangle(Element element) throws Exception {
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return new Triangle(
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XMLUtil.getInt(element, "a"),
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XMLUtil.getInt(element, "b"),
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XMLUtil.getInt(element, "c"),
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XMLUtil.getInt(element, "adjacency", 0)
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);
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}
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/**
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* Load an Animation from XML
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* @param element
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* @param numBones
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* @return Frame[]
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* @throws Exception
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*/
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private Frame[] loadAnimation(Element element, int numBones) throws Exception {
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List frameElements = XMLUtil.getChildren(element, "frame");
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Frame[] frames = new Frame[frameElements.size()];
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int frameCount = 0;
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for (Iterator i = frameElements.iterator(); i.hasNext(); ) {
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Element frameElement = (Element) i.next();
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frames[frameCount++] = loadFrame(frameElement, numBones);
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}
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return frames;
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}
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/**
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* Load a Frame from XML
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* @param element
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* @param numBones
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* @return Frame
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* @throws Exception
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*/
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private Frame loadFrame(Element element, int numBones) throws Exception {
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List boneElements = XMLUtil.getChildren(element, "bone");
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if (boneElements.size() != numBones) {
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throw new Exception("Expected "+numBones+" bones in frame, only got "+boneElements.size());
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}
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Matrix4f[] bones = new Matrix4f[boneElements.size()];
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int boneCount = 0;
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for (Iterator i = boneElements.iterator(); i.hasNext(); ) {
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Element boneElement = (Element) i.next();
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bones[boneCount++] = loadBone(boneElement);
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}
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return new Frame(
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XMLUtil.getFloat(element, "time", 0.0f),
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bones
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);
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}
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/**
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* Load a Bone from XML
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* @param element
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* @return a Matrix4f
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* @throws Exception
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*/
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private Matrix4f loadBone(Element element) throws Exception {
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Matrix4f ret = new Matrix4f();
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ret.m00 = XMLUtil.getFloat(element, "m00");
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ret.m01 = XMLUtil.getFloat(element, "m01");
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ret.m02 = XMLUtil.getFloat(element, "m02");
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ret.m03 = XMLUtil.getFloat(element, "m03");
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ret.m10 = XMLUtil.getFloat(element, "m10");
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ret.m11 = XMLUtil.getFloat(element, "m11");
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ret.m12 = XMLUtil.getFloat(element, "m12");
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ret.m13 = XMLUtil.getFloat(element, "m13");
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ret.m20 = XMLUtil.getFloat(element, "m20");
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ret.m21 = XMLUtil.getFloat(element, "m21");
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ret.m22 = XMLUtil.getFloat(element, "m22");
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ret.m23 = XMLUtil.getFloat(element, "m23");
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ret.m30 = XMLUtil.getFloat(element, "m30", 0.0f);
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ret.m31 = XMLUtil.getFloat(element, "m31", 0.0f);
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ret.m32 = XMLUtil.getFloat(element, "m32", 0.0f);
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ret.m33 = XMLUtil.getFloat(element, "m33", 1.0f);
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return ret;
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}
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}
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