milktojme.java

java 3d game jme 工程开发源代码

/*
 * Copyright (c) 2003-2009 jMonkeyEngine
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 
 *   may be used to endorse or promote products derived from this software 
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.jmex.model.converters;

import java.io.DataInput;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;

import com.jme.image.Image;
import com.jme.image.Texture;
import com.jme.image.Texture2D;
import com.jme.math.Vector2f;
import com.jme.math.Vector3f;
import com.jme.renderer.ColorRGBA;
import com.jme.scene.Controller;
import com.jme.scene.Node;
import com.jme.scene.TexCoords;
import com.jme.scene.TriMesh;
import com.jme.scene.state.CullState;
import com.jme.scene.state.MaterialState;
import com.jme.scene.state.TextureState;
import com.jme.system.DisplaySystem;
import com.jme.system.JmeException;
import com.jme.system.dummy.DummyDisplaySystem;
import com.jme.system.dummy.DummySystemProvider;
import com.jme.util.LittleEndien;
import com.jme.util.TextureKey;
import com.jme.util.TextureManager;
import com.jme.util.export.binary.BinaryExporter;
import com.jme.util.geom.BufferUtils;
import com.jme.util.resource.ResourceLocatorTool;
import com.jmex.model.JointMesh;
import com.jmex.model.animation.JointController;

/**
 * Started Date: Jun 8, 2004
 * <p>
 * This class converts a .ms3d file to jME's binary format. The way it converts
 * is by first building the .ms3d scenegraph object, then saving that object to
 * binary format via {@link com.jmex.model.XMLparser.JmeBinaryWriter}. This
 * requires a {@link com.jme.system.DisplaySystem} to function correctly
 * (as all loaders do).
 * <p>
 * This will normally be provided within a game environment (such as
 * {@link com.jme.app.SimpleGame}). However if you wish to use this in a
 * stand-alone environment, such as part of a tool conversion utility, you
 * should create a {@link DummyDisplaySystem} before using this class.
 * @author Jack Lindamood
 */
public class MilkToJme extends FormatConverter{
    
    private DataInput inFile;
    private byte[] tempChar=new byte[128];
    private int nNumVertices;
    private int nNumTriangles;
    private MilkTriangle[] myTris;
    private MilkVertex[] myVerts;
    private int[] materialIndexes;

    /**
     * Converts a MS3D file to jME format.  The syntax is: "MilkToJme runner.ms3d out.jme".
     * @param args The array of parameters
     */
    public static void main(String[] args){
    	DisplaySystem.getDisplaySystem(DummySystemProvider.DUMMY_SYSTEM_IDENTIFIER);
        new MilkToJme().attemptFileConvert(args);
    }


    /**
     * The node that represents the .ms3d file.  It's chidren are MS meshes
     */
    private Node finalNode;

    /**
     * This class's only public function.  It creates a node from a .ms3d stream and then writes that node to the given
     * OutputStream in binary format
     * @param MSFile An inputStream that is the .ms3d file
     * @param o The Stream to write it's jME binary equivalent to
     * @throws IOException If anything funky goes wrong with reading information
     */
    public void convert(InputStream MSFile,OutputStream o) throws IOException {
        inFile=new LittleEndien(MSFile);
        finalNode=new Node("ms3d file");
        CullState CS=DisplaySystem.getDisplaySystem().getRenderer().createCullState();
        CS.setCullFace(CullState.Face.Back);
        CS.setEnabled(true);
        finalNode.setRenderState(CS);
        checkHeader();
        readVerts();
        readTriangles();
        readGroups();
        readMats();
        readJoints();
        
        
        BinaryExporter.getInstance().save(finalNode,o);
        nullAll();
    }
    
    private void addJointMeshes(Node parentNode, JointController jc) {
    	for (int i=0;i<parentNode.getQuantity();i++){
            if (parentNode.getChild(i) instanceof JointMesh)
                jc.addJointMesh((JointMesh) parentNode.getChild(i));
        }
    }

    private void nullAll() {
        myTris=null;
        myVerts=null;
        finalNode=null;
    }

    private boolean readJoints() throws IOException {
        float fAnimationFPS=inFile.readFloat();
        float curTime=inFile.readFloat();     // Ignore currentTime
        int iTotalFrames=inFile.readInt();      // Ignore total Frames
        int nNumJoints=inFile.readUnsignedShort();
        if (nNumJoints==0) return false;
        String[] jointNames=new String[nNumJoints];
        String[] parentNames=new String[nNumJoints];
        JointController jc=new JointController(nNumJoints);
        jc.FPS=fAnimationFPS;

        for (int i=0;i<nNumJoints;i++){
            inFile.readByte();  // Ignore flags
            inFile.readFully(tempChar,0,32);
            jointNames[i]=cutAtNull(tempChar);
            inFile.readFully(tempChar,0,32);
            parentNames[i]=cutAtNull(tempChar);
            jc.localRefMatrix[i].setEulerRot(inFile.readFloat(),inFile.readFloat(),inFile.readFloat());
            jc.localRefMatrix[i].setTranslation(inFile.readFloat(),inFile.readFloat(),inFile.readFloat());
            int numKeyFramesRot=inFile.readUnsignedShort();
            int numKeyFramesTrans=inFile.readUnsignedShort();
            for (int j=0;j<numKeyFramesRot;j++)
                jc.setRotation(i,inFile.readFloat(),inFile.readFloat(),inFile.readFloat(),inFile.readFloat());
            for (int j=0;j<numKeyFramesTrans;j++)
                jc.setTranslation(i,inFile.readFloat(),inFile.readFloat(),inFile.readFloat(),inFile.readFloat());

        }
        for (int i=0;i<nNumJoints;i++){
            jc.parentIndex[i]=-1;
            for (int j=0;j<nNumJoints;j++){
                if (parentNames[i].equals(jointNames[j])) jc.parentIndex[i]=j;
            }
        }
        jc.setRepeatType(Controller.RT_WRAP);
        finalNode.addController(jc);
        addJointMeshes(finalNode, jc);
        return true;
    }

    private void readMats() throws IOException {