private static E3DBone readBone(E3DEngine engine, BufferedReader actorFile, String boneID)
throws IOException {
String line;
StringTokenizer tokenizer;
String str;
boolean startBlockFound = false;
E3DBone bone;
E3DVector3F position = null, forward = null, up = null;
boolean endBlock = false;
while (!endBlock && (line = actorFile.readLine()) != null) {
tokenizer = new StringTokenizer(line, TOKENIZER_CHARS);
while (!endBlock && tokenizer.hasMoreTokens()) {
str = readNextValue(tokenizer);
if (START_BLOCK.equals(str)) {
startBlockFound = true;
} else if (POSITION.equals(str)) {
if (!startBlockFound) continue;
String subLine = actorFile.readLine();
position = readVector3F(subLine);
} else if (FORWARD.equals(str)) {
if (!startBlockFound) continue;
String subLine = actorFile.readLine();
forward = readVector3F(subLine);
} else if (UP.equals(str)) {
if (!startBlockFound) continue;
String subLine = actorFile.readLine();
up = readVector3F(subLine);
} else if (COMMENT.equals(str)) break;
else if (END_BLOCK.equals(str)) endBlock = true;
else
engine
.getLogger()
.writeLine(E3DEngineLogger.SEVERITY_INFO, "Unknown tag in bone: " + str);
}
}
if (position != null && forward != null && up != null) {
bone = new E3DBone(engine, boneID, position, forward, up);
return bone;
}
return null;
}
private static E3DAnimationKeyFrame readAnimationFrame(
E3DEngine engine,
String animationID,
String frameID,
double fps,
E3DAnimation animation,
BufferedReader actorFile)
throws IOException {
boolean endBlockFound = false;
boolean startBlockFound = false;
StringTokenizer tokenizer;
String line, str;
double frameTime = 1.0 / fps;
E3DAnimationKeyFrame animationKeyFrame = new E3DAnimationKeyFrame(engine, frameID, frameTime);
while (!endBlockFound && (line = actorFile.readLine()) != null) {
tokenizer = new StringTokenizer(line, TOKENIZER_CHARS);
while (!endBlockFound && tokenizer.hasMoreTokens()) {
str = readNextValue(tokenizer);
if (START_BLOCK.equals(str)) {
startBlockFound = true;
} else if (ACTORTAG_BONE.equals(str)) {
if (!startBlockFound) continue;
String manipulatedBoneID = readNextValue(tokenizer);
addAnimationCommands(engine, manipulatedBoneID, animationKeyFrame, actorFile);
} else if (END_BLOCK.equals(str)) {
endBlockFound = true;
} else
engine
.getLogger()
.writeLine(E3DEngineLogger.SEVERITY_INFO, "Unknown tag in animation frame: " + str);
}
}
if (!endBlockFound) return null;
return animationKeyFrame;
}
private static E3DAnimation readAnimation(
E3DEngine engine, String animationID, double fps, BufferedReader actorFile)
throws IOException {
boolean endBlockFound = false;
boolean startBlockFound = false;
StringTokenizer tokenizer;
String line, str;
E3DAnimation animation = new E3DAnimation(engine, animationID);
while (!endBlockFound && (line = actorFile.readLine()) != null) {
tokenizer = new StringTokenizer(line, TOKENIZER_CHARS);
while (!endBlockFound && tokenizer.hasMoreTokens()) {
str = readNextValue(tokenizer);
if (START_BLOCK.equals(str)) {
startBlockFound = true;
} else if (ACTORTAG_ANIMATION_FRAME.equals(str)) {
if (!startBlockFound) continue;
String frameID = readNextValue(tokenizer);
E3DAnimationKeyFrame frame =
readAnimationFrame(engine, animationID, frameID, fps, animation, actorFile);
if (frame != null) animation.addKeyFrame(frame);
} else if (END_BLOCK.equals(str)) {
endBlockFound = true;
} else
engine
.getLogger()
.writeLine(E3DEngineLogger.SEVERITY_INFO, "Unknown tag in animation: " + str);
}
}
if (endBlockFound) return animation;
return null;
}
private static boolean addAnimationCommands(
E3DEngine engine,
String manipulatedBoneID,
E3DAnimationKeyFrame animationKeyFrame,
BufferedReader actorFile)
throws IOException {
boolean endBlockFound = false;
boolean startBlockFound = false;
StringTokenizer tokenizer;
String line, str;
E3DAnimationCommand command;
while (!endBlockFound && (line = actorFile.readLine()) != null) {
tokenizer = new StringTokenizer(line, TOKENIZER_CHARS);
while (!endBlockFound && tokenizer.hasMoreTokens()) {
str = readNextValue(tokenizer);
if (START_BLOCK.equals(str)) {
startBlockFound = true;
// command = new E3DHybridAnimationCommand(engine, manipulatedBoneID, frameSpan *
// animationKeyFrame.getFrameLength());
} else if (ACTORTAG_ANIMATION_FRAME_ROTATE.equals(str)) {
if (!startBlockFound) continue;
String subLine = actorFile.readLine();
StringTokenizer rotateTokenizer = new StringTokenizer(subLine, TOKENIZER_CHARS);
String fSpan = readNextValue(rotateTokenizer);
int frameSpan = Integer.parseInt(fSpan);
E3DVector3F rotation = readVector3F(rotateTokenizer);
// Figure out how long it should last by the frametime * frameSpan (frametime is derived
// from the animation)
command =
new E3DAnimationCommandRotate(
engine,
manipulatedBoneID,
frameSpan * animationKeyFrame.getFrameLength(),
rotation);
animationKeyFrame.addAnimationCommand(command);
} else if (ACTORTAG_ANIMATION_FRAME_TRANSLATE.equals(str)) {
if (!startBlockFound) continue;
String subLine = actorFile.readLine();
StringTokenizer translateTokenizer = new StringTokenizer(subLine, TOKENIZER_CHARS);
String fTime = readNextValue(translateTokenizer);
double dfTime = Double.parseDouble(fTime);
E3DVector3F translation = readVector3F(translateTokenizer);
command =
new E3DAnimationCommandTranslate(engine, manipulatedBoneID, dfTime, translation);
animationKeyFrame.addAnimationCommand(command);
} else if (END_BLOCK.equals(str)) {
endBlockFound = true;
} else
engine
.getLogger()
.writeLine(
E3DEngineLogger.SEVERITY_INFO,
"Unknown tag in animation frame command listing: " + str);
}
}
if (endBlockFound && animationKeyFrame.getCommands().isEmpty()) return false;
else if (endBlockFound) return true;
return false;
}
private static boolean readActor(
BufferedReader actorFile, StringTokenizer tokenizer, E3DActor actor) throws IOException {
String str;
String line;
boolean startBlockFound = false;
boolean endBlockFound = false;
// Hold onto bones that don't have parents yet
// (String parentBoneID, (ArrayList)E3DBone bone)
E3DHashListMap orphanedBones = new E3DHashListMap();
// We can't attach triangles to bones until the bones are all loaded, so we do that in the end
// (E3DTriangle triangle, VertexBoneInformation boneInformation)
HashMap orphanedTriangleBoneAttachments = new HashMap();
while (!endBlockFound && (line = actorFile.readLine()) != null) {
tokenizer = new StringTokenizer(line, TOKENIZER_CHARS);
while (!endBlockFound && tokenizer.hasMoreTokens()) {
str = readNextValue(tokenizer);
if (START_BLOCK.equals(str)) {
startBlockFound = true;
} else if (ACTORTAG_BONE.equals(str)) {
if (!startBlockFound) return false;
String boneID = readNextValue(tokenizer);
String parentBoneID = readNextValue(tokenizer);
E3DBone bone = readBone(actor.getEngine(), actorFile, boneID);
if (bone != null) {
if (!actor.getSkeleton().addBone(bone, parentBoneID))
orphanedBones.put(parentBoneID, bone);
else // did add it, so there may be some children of it
{ // by the time we get done adding the last bone, we should be able to link up all
// children
linkOrphanedBonesToNewBone(actor, bone, orphanedBones);
}
} else
actor
.getEngine()
.getLogger()
.writeLine(
E3DEngineLogger.SEVERITY_WARNING,
"Unable to read bone: "
+ E3DStringHelper.getNonNullableString(boneID)
+ ". Possibly missing attributes or malformed definition.");
} else if (ACTORTAG_TRIANGLE.equals(str)) {
if (!startBlockFound) return false;
TempTriangle tempTriangle = readTriangle(actor.getEngine(), actorFile);
if (tempTriangle != null) {
E3DTriangle triangle = tempTriangle.triangle;
VertexBoneInformation boneInformation = tempTriangle.vertexBoneInformation;
if (triangle != null) {
actor.getMesh().addTriangle(triangle);
if (boneInformation != null) // these will be linked later
orphanedTriangleBoneAttachments.put(triangle, boneInformation);
}
}
} else if (ACTORTAG_ANIMATION.equals(str)) {
if (!startBlockFound) return false;
String animationName = readNextValue(tokenizer);
String fps = readNextValue(tokenizer);
double dFPS = 20.0;
try {
dFPS = Double.parseDouble(fps);
} catch (NumberFormatException e) {
actor
.getEngine()
.getLogger()
.writeLine(
E3DEngineLogger.SEVERITY_WARNING,
"No FPS specified for animation. 20 FPS will be used by default (1 frame == 0.5s)");
}
if (dFPS == 0) dFPS = 20.0;
E3DAnimation animation = readAnimation(actor.getEngine(), animationName, dFPS, actorFile);
if (animation != null) actor.getSkeleton().addAnimation(animation);
} else if (COMMENT.equals(str)) break;
else if (END_BLOCK.equals(str)) endBlockFound = true;
else
actor
.getEngine()
.getLogger()
.writeLine(
E3DEngineLogger.SEVERITY_INFO, "Unknown tag in actor model definition: " + str);
}
}
linkTrianglesToBones(actor, orphanedTriangleBoneAttachments);
return endBlockFound;
}