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+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistribution of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistribution 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 Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ *
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package demos.util;
+
+import java.io.*;
+
+import net.java.games.jogl.*;
+
+/** Renders a triceratops. <P>
+
+ Copyright by Thomas Baier ([email protected])<br>
+ Created by OpenGL Export Plugin 1.0 at Fri Oct 27 22:04:55 2000<br>
+ OpenGL-Structure <br><p>
+
+ Ported to Java by Kenneth Russell
+*/
+public class Triceratops {
+
+ /** Draws the triceratops object. Callers should capture the result
+ in a display list. */
+ public static void drawObject(GL gl) throws IOException {
+ Reader reader = new BufferedReader(new InputStreamReader(
+ Triceratops.class.getClassLoader().getResourceAsStream("demos/data/models/triceratops.txt")));
+ StreamTokenizer tok = new StreamTokenizer(reader);
+ // Reset tokenizer's syntax so numbers are not parsed
+ tok.resetSyntax();
+ tok.wordChars('a', 'z');
+ tok.wordChars('A', 'Z');
+ tok.wordChars('0', '9');
+ tok.wordChars('-', '-');
+ tok.wordChars('.', '.');
+ tok.wordChars(128 + 32, 255);
+ tok.whitespaceChars(0, ' ');
+ tok.whitespaceChars(',', ',');
+ tok.whitespaceChars('{', '{');
+ tok.whitespaceChars('}', '}');
+ tok.commentChar('/');
+ tok.quoteChar('"');
+ tok.quoteChar('\'');
+ tok.slashSlashComments(true);
+ tok.slashStarComments(true);
+
+ // Read in file
+ int numVertices = nextInt(tok, "number of vertices");
+ float[] vertices = new float[numVertices * 3];
+ for (int i = 0; i < numVertices * 3; i++) {
+ vertices[i] = nextFloat(tok, "vertex");
+ }
+ int numNormals = nextInt(tok, "number of normals");
+ float[] normals = new float[numNormals * 3];
+ for (int i = 0; i < numNormals * 3; i++) {
+ normals[i] = nextFloat(tok, "normal");
+ }
+ int numFaceIndices = nextInt(tok, "number of face indices");
+ short[] faceIndices = new short[numFaceIndices * 9];
+ for (int i = 0; i < numFaceIndices * 9; i++) {
+ faceIndices[i] = (short) nextInt(tok, "face index");
+ }
+
+ reader.close();
+
+ float sf = 0.1f;
+ gl.glBegin(GL.GL_TRIANGLES);
+ for (int i = 0; i < faceIndices.length; i += 9) {
+ for (int j = 0; j < 3; j++) {
+ int vi = faceIndices[i + j ] & 0xFFFF;
+ int ni = faceIndices[i + j + 3] & 0xFFFF;
+ gl.glNormal3f(normals[3 * ni],
+ normals[3 * ni + 1],
+ normals[3 * ni + 2]);
+ gl.glVertex3f(sf * vertices[3 * vi],
+ sf * vertices[3 * vi + 1],
+ sf * vertices[3 * vi + 2]);
+ }
+ }
+ gl.glEnd();
+ }
+
+ private static int nextInt(StreamTokenizer tok, String error) throws IOException {
+ if (tok.nextToken() != StreamTokenizer.TT_WORD) {
+ throw new IOException("Parse error reading " + error + " at line " + tok.lineno());
+ }
+ try {
+ return Integer.parseInt(tok.sval);
+ } catch (NumberFormatException e) {
+ throw new IOException("Parse error reading " + error + " at line " + tok.lineno());
+ }
+ }
+
+ private static float nextFloat(StreamTokenizer tok, String error) throws IOException {
+ if (tok.nextToken() != StreamTokenizer.TT_WORD) {
+ throw new IOException("Parse error reading " + error + " at line " + tok.lineno());
+ }
+ try {
+ return Float.parseFloat(tok.sval);
+ } catch (NumberFormatException e) {
+ throw new IOException("Parse error reading " + error + " at line " + tok.lineno());
+ }
+ }
+}