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https://github.com/lax1dude/eagler-binary-tools.git
synced 2024-10-05 20:05:59 -07:00
Implement OBJ to MDL file converter
This commit is contained in:
lax1dude
parent
9a9e50e223
commit
62e8cd6618
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@ -37,9 +37,12 @@ public class EaglerBinaryTools {
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return;
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case "obj2mdl-1.5":
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case "obj2mdl1.5":
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OBJConverter._main(argz, false);
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return;
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case "obj2mdl-1.8":
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case "obj2mdl1.8":
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case "obj2mdl":
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OBJConverter._main(argz, true);
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return;
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case "ebp-encode":
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case "ebpencode":
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@ -63,7 +66,7 @@ public class EaglerBinaryTools {
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}
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private static void usage() {
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System.out.println("Usage: java -jar EaglerBinaryTools.jar <epkcompiler|legacy-epkcompiler|epkdecompiler|obj2mdl-1.5|obj2mdl-1.8|ebp-encode|ebp-decode|skybox-gen|eagler-moon-gen|lens-flare-gen> [args...]");
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System.out.println("Usage: java -jar EaglerBinaryTools.jar <epkcompiler|legacy-epkcompiler|epkdecompiler|obj2mdl-1.5|obj2mdl-1.8|ebp-encode|ebp-decode|skybox-gen|light-mesh-gen|eagler-moon-gen|lens-flare-gen> [args...]");
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System.out.println(" - 'epkcompiler': Compile an EPK file from a folder");
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System.out.println(" - 'legacy-epkcompiler': Compile an EPK file in legacy format");
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System.out.println(" - 'epkdecompiler': Decompile an EPK file into a folder");
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@ -72,6 +75,7 @@ public class EaglerBinaryTools {
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System.out.println(" - 'ebp-encode': Encode EBP file from PNG");
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System.out.println(" - 'ebp-decode': Decode EBP file to PNG");
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System.out.println(" - 'skybox-gen': Generate skybox.dat from OBJ for shader packs");
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System.out.println(" - 'light-mesh-gen': Generate light_point.dat from OBJ for shader packs");
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System.out.println(" - 'eagler-moon-gen': Generate eagler_moon.bmp from PNG for shader packs");
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System.out.println(" - 'lens-flare-gen': Generate lens_streaks.bmp, lens_ghosts.bmp from PNG for shader packs");
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}
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@ -0,0 +1,186 @@
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package net.lax1dude.eaglercraft.bintools;
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import java.io.BufferedReader;
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import java.io.DataOutputStream;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.nio.charset.StandardCharsets;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.List;
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/**
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* Copyright (c) 2022-2024 lax1dude. All Rights Reserved.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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public class OBJConverter {
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public static void _main(String[] args, boolean v1_8) throws IOException {
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if(args.length != 3) {
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System.out.println("Usage: obj2mdl-" + (v1_8 ? "1.8" : "1.5") + " <input file> <output file> <texture mode>");
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System.out.println("Input file format is Wavefront OBJ file exported from your 3D modeling program");
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System.out.println("Texture mode can be 'true' or 'false' to enable/disable exporting texture UV coordinates");
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return;
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}
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System.out.println("Reading input file...");
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List<String> lns = new ArrayList();
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try(BufferedReader bu = new BufferedReader(new FileReader(new File(args[0])))) {
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String s;
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while((s = bu.readLine()) != null) {
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lns.add(s);
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}
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}
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File output = new File(args[1]);
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System.out.println("Exporting MDL: " + output.getAbsolutePath());
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boolean tex = args[2].equalsIgnoreCase("true") || args[2].equals("1");
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try(FileOutputStream fs = new FileOutputStream(output)) {
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convertModel(lns, fs, tex, v1_8);
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}
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if(tex) {
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System.out.println("Export with UVs completed!");
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}else {
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System.out.println("Export without UVs competed!");
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}
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}
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public static void convertModel(Collection<String> lines, OutputStream out, boolean textureMode, boolean v1_8) throws IOException {
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List<float[]> vertexes = new ArrayList<float[]>();
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List<byte[]> normals = new ArrayList<byte[]>();
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List<float[]> texcoords = new ArrayList<float[]>();
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List<int[][]> faces = new ArrayList<int[][]>();
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List<byte[]> vboentries = new ArrayList<byte[]>();
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List<byte[]> indexablevboentries = new ArrayList<byte[]>();
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List<Integer> indexbuffer = new ArrayList<Integer>();
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for(String ul : lines) {
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String[] l = ul.split(" ");
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if(l[0].equals("v")) {
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vertexes.add(new float[] {Float.parseFloat(l[1]), Float.parseFloat(l[2]), Float.parseFloat(l[3])});
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}
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if(l[0].equals("vn")) {
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int dumb = v1_8 ? 0 : 127;
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normals.add(new byte[] {(byte)((int)(Float.parseFloat(l[1]) * 127.0F) + dumb), (byte)((int)(Float.parseFloat(l[2]) * 127.0F) + dumb), (byte)((int)(Float.parseFloat(l[3]) * 127.0F) + dumb), (byte)0});
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}
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if(textureMode) {
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if(l[0].equals("vt")) {
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texcoords.add(new float[] {Float.parseFloat(l[1]), 1.0f - Float.parseFloat(l[2])});
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}
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}
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if(l[0].equals("f")) {
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if(l.length != 4) {
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printTriangulationMessage();
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System.exit(-1);
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return;
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}
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String[] v1 = l[1].split("/");
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String[] v2 = l[2].split("/");
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String[] v3 = l[3].split("/");
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faces.add(new int[][] {
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{Integer.parseInt(v1[0]), Integer.parseInt(v1[1]), Integer.parseInt(v1[2])},
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{Integer.parseInt(v2[0]), Integer.parseInt(v2[1]), Integer.parseInt(v2[2])},
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{Integer.parseInt(v3[0]), Integer.parseInt(v3[1]), Integer.parseInt(v3[2])}
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});
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}
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}
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for(int[][] f : faces) {
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for(int i = 0; i < 3; i++) {
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byte[] b = new byte[textureMode ? 24 : 16];
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float[] v = vertexes.get(f[i][0]-1);
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int ix = Float.floatToRawIntBits(v[0]);
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int iy = Float.floatToRawIntBits(v[1]);
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int iz = Float.floatToRawIntBits(v[2]);
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int idx = 0;
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b[idx++] = (byte)(ix); b[idx++] = (byte)(ix >> 8); b[idx++] = (byte)(ix >> 16); b[idx++] = (byte)(ix >> 24);
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b[idx++] = (byte)(iy); b[idx++] = (byte)(iy >> 8); b[idx++] = (byte)(iy >> 16); b[idx++] = (byte)(iy >> 24);
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b[idx++] = (byte)(iz); b[idx++] = (byte)(iz >> 8); b[idx++] = (byte)(iz >> 16); b[idx++] = (byte)(iz >> 24);
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byte[] n = normals.get(f[i][2]-1);
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b[idx++] = n[0];
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b[idx++] = n[1];
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b[idx++] = n[2];
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b[idx++] = n[3];
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if(textureMode) {
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float[] t = texcoords.get(f[i][1]-1);
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int ix3 = Float.floatToRawIntBits(t[0]);
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int iy3 = Float.floatToRawIntBits(t[1]);
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b[idx++] = (byte)(ix3); b[idx++] = (byte)(ix3 >> 8); b[idx++] = (byte)(ix3 >> 16); b[idx++] = (byte)(ix3 >> 24);
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b[idx++] = (byte)(iy3); b[idx++] = (byte)(iy3 >> 8); b[idx++] = (byte)(iy3 >> 16); b[idx++] = (byte)(iy3 >> 24);
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}
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vboentries.add(b);
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}
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}
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for(int j = 0; j < vboentries.size(); ++j) {
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byte v[] = vboentries.get(j);
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int l = indexablevboentries.size();
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boolean flag = true;
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for(int i = 0; i < l; i++) {
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if(Arrays.equals(v, indexablevboentries.get(i))) {
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indexbuffer.add(i);
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flag = false;
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break;
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}
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}
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if(flag) {
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indexbuffer.add(l);
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indexablevboentries.add(v);
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}
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}
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DataOutputStream o = new DataOutputStream(out);
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o.write((v1_8 ? "!EAG$mdl" : "!EAG%mdl").getBytes(StandardCharsets.US_ASCII));
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o.write(textureMode ? (byte)'T' : (byte)'C');
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o.writeUTF("\n\nthis file was generated with EaglerBinaryTools\n\n");
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o.writeInt(indexablevboentries.size());
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o.writeInt(indexbuffer.size());
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for(int i = 0; i < indexablevboentries.size(); ++i) {
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byte[] b = indexablevboentries.get(i);
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o.write(b, 0, b.length);
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}
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for(int i : indexbuffer) {
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o.write((byte)i);
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o.write((byte)(i >> 8));
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}
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o.write("_:>+".getBytes(StandardCharsets.US_ASCII));
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o.close();
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}
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private static void printTriangulationMessage() {
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System.err.println("=====================================");
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System.err.println("THIS OBJ FILE IS NOT COMPATIBLE WITH EAGLERCRAFT!");
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System.err.println();
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System.err.println("Eaglercraft meshes can only have triangles in them.");
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System.err.println();
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System.err.println("If you're using Blender, add the \"triangulate\"");
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System.err.println("modifier to the mesh before exporting to fix");
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System.err.println("=====================================");
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}
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}
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@ -48,6 +48,9 @@ public class EPKDecompilerSP {
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private boolean isFinished = false;
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private boolean isOldFormat = false;
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/**
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* This class is from the Eaglercraft 1.5 client, with a few modifications
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*/
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public EPKDecompilerSP(byte[] data) throws IOException {
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in2 = new ByteArrayInputStream(data);
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