private void readAnimations() throws IOException {
if (header.ofs_anims == readBytes) {
for (int i = 0; i < header.num_anims; ++i) {
byte[] buffer = new byte[ANIM_SIZE];
readBytes += in.read(buffer);
int pos = 0;
AnimationData animData = new AnimationData();
pos++;
animData.name = texts.get(textPos++);
int firstFrame = toInt(buffer, (pos++) * 4);
int numFrames = toInt(buffer, (pos++) * 4);
animData.animationFrames = new AnimationFrame[numFrames];
animData.frameRate = toFloat(buffer, (pos++) * 4);
animData.flag = toInt(buffer, (pos++) * 4);
entityData.skeletonData.animations.add(animData);
}
}
if (header.ofs_frames == readBytes) {
for (int i = 0; i < header.num_anims; ++i) {
AnimationData animData = entityData.skeletonData.animations.get(i);
byte[] buffer = new byte[2 * animData.animationFrames.length * header.num_framechannels];
readBytes += in.read(buffer);
int pos = 0;
float prevTime = 0;
for (int j = 0; j < animData.animationFrames.length; ++j) {
AnimationFrame frame = new AnimationFrame(header.num_joints);
animData.animationFrames[j] = frame;
frame.time = prevTime;
prevTime += 1 / animData.frameRate;
for (int k = 0; k < header.num_poses; ++k) {
PoseData p = entityData.skeletonData.poses[k];
Vector3 translate =
new Vector3(p.channeloffset[0], p.channeloffset[1], p.channeloffset[2]);
if ((p.channelmask & 0x01) != 0)
translate.x += toShort(buffer, (pos++) * 2) * p.channelscale[0];
if ((p.channelmask & 0x02) != 0)
translate.y += toShort(buffer, (pos++) * 2) * p.channelscale[1];
if ((p.channelmask & 0x04) != 0)
translate.z += toShort(buffer, (pos++) * 2) * p.channelscale[2];
Quaternion rotate =
new Quaternion(
p.channeloffset[3], p.channeloffset[4], p.channeloffset[5], p.channeloffset[6]);
if ((p.channelmask & 0x08) != 0)
rotate.x += toShort(buffer, (pos++) * 2) * p.channelscale[3];
if ((p.channelmask & 0x10) != 0)
rotate.y += toShort(buffer, (pos++) * 2) * p.channelscale[4];
if ((p.channelmask & 0x20) != 0)
rotate.z += toShort(buffer, (pos++) * 2) * p.channelscale[5];
if ((p.channelmask & 0x40) != 0)
rotate.w += toShort(buffer, (pos++) * 2) * p.channelscale[6];
if ((p.channelmask & 0x80) != 0) pos++;
if ((p.channelmask & 0x100) != 0) pos++;
if ((p.channelmask & 0x200) != 0) pos++;
frame.bonePos[k] = translate;
frame.boneRot[k] = rotate;
}
}
}
}
}
private void readVertices() throws IOException {
for (int i = 0; i < header.num_vertexarrays; ++i) {
VertexArray vertexArray = vertexArrays[i];
for (int j = 0; j < entityData.subEntities.length; ++j) {
SubEntityData subEntity = entityData.subEntities[j];
// These are the vertices belonging to this subentity
int componentSize = getVertexArrayComponentSize(vertexArray);
byte[] buffer = new byte[subEntity.countVertices * vertexArray.size * componentSize];
readBytes += in.read(buffer);
int pos = 0;
int byteStride = vertexLayout.getByteStride();
int offset;
switch (vertexArray.type) {
case 0: // This is a position
offset = vertexLayout.getPos(VertexLayout.POSITION);
for (int k = 0; k < subEntity.countVertices; ++k) {
subEntity.vertexData[k * byteStride + offset + 0] = toFloat(buffer, (pos++) * 4);
subEntity.vertexData[k * byteStride + offset + 1] = toFloat(buffer, (pos++) * 4);
subEntity.vertexData[k * byteStride + offset + 2] = toFloat(buffer, (pos++) * 4);
}
break;
case 1: // This is a texture coordinate
offset = vertexLayout.getPos(VertexLayout.UV);
for (int k = 0; k < subEntity.countVertices; ++k) {
subEntity.vertexData[k * byteStride + offset + 0] = toFloat(buffer, (pos++) * 4);
subEntity.vertexData[k * byteStride + offset + 1] = toFloat(buffer, (pos++) * 4);
}
break;
case 2: // This is a normal
offset = vertexLayout.getPos(VertexLayout.NORMAL);
for (int k = 0; k < subEntity.countVertices; ++k) {
float x = toFloat(buffer, (pos++) * 4);
float y = toFloat(buffer, (pos++) * 4);
float z = toFloat(buffer, (pos++) * 4);
if (light == null) {
// Lighting information not baked into the mesh
subEntity.vertexData[k * byteStride + offset + 0] = x;
subEntity.vertexData[k * byteStride + offset + 1] = y;
subEntity.vertexData[k * byteStride + offset + 2] = z;
} else {
// Lighting information baked into the mesh
float[] lightVector = light.getLightVector();
float diffuse =
Math.max(
Vector3.dot(x, y, z, lightVector[0], lightVector[1], lightVector[2]), 0);
subEntity.vertexData[k * byteStride + offset] = diffuse;
}
}
break;
case 4: // This is a blendindex
offset = Mesh.BONE_INDEX_OFFSET;
for (int k = 0; k < subEntity.countVertices; ++k) {
for (int m = 0; m < 4; ++m) {
int intVal = buffer[pos++] & 0xff;
subEntity.boneData[k * Mesh.BONE_BYTE_STRIDE + offset + m] = intVal;
}
}
break;
case 5: // This is a blendweight
offset = Mesh.BONE_WEIGHT_OFFSET;
for (int k = 0; k < subEntity.countVertices; ++k) {
for (int m = 0; m < 4; ++m) {
int intVal = buffer[pos++] & 0xff;
float weight = intVal / 255.f;
subEntity.boneData[k * Mesh.BONE_BYTE_STRIDE + offset + m] = weight;
}
}
break;
case 6: // This i a color
break;
default: // None of the above, we dont care about this data;
break;
}
}
}
}
