Minor optimisations. Added several comments to unveil certain parts of the code.

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9918 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/blender/com/jme3/scene/plugins/blender/constraints/definitions/ConstraintDefinition.java

@@ -215,9 +215,13 @@ public abstract class ConstraintDefinition {
 			}
 		}
 
-		public void write(JmeExporter ex) throws IOException { }
+		public void write(JmeExporter ex) throws IOException { 
+			//no need to implement this one (the TrackWrapper is used internally and never serialized)
+		}
 
-		public void read(JmeImporter im) throws IOException { }
+		public void read(JmeImporter im) throws IOException {
+			//no need to implement this one (the TrackWrapper is used internally and never serialized)
+		}
 
 		public void setTime(float time, float weight, AnimControl control,
 				AnimChannel channel, TempVars vars) {

engine/src/blender/com/jme3/scene/plugins/blender/constraints/definitions/ConstraintDefinitionLocLimit.java

@@ -53,35 +53,23 @@ import com.jme3.scene.plugins.blender.file.Structure;
 	public void bake(Transform ownerTransform, Transform targetTransform, float influence) {
 		Vector3f translation = ownerTransform.getTranslation();
 		
-		if ((flag & LIMIT_XMIN) != 0) {
-			if (translation.x < limits[0][0]) {
+		if ((flag & LIMIT_XMIN) != 0 && translation.x < limits[0][0]) {
 			translation.x -= (translation.x - limits[0][0]) * influence;
 		}
-		}
-		if ((flag & LIMIT_XMAX) != 0) {
-			if (translation.x > limits[0][1]) {
+		if ((flag & LIMIT_XMAX) != 0 && translation.x > limits[0][1]) {
 			translation.x -= (translation.x - limits[0][1]) * influence;
 		}
-		}
-		if ((flag & LIMIT_YMIN) != 0) {
-			if (translation.y < limits[1][0]) {
+		if ((flag & LIMIT_YMIN) != 0 && translation.y < limits[1][0]) {
 			translation.y -= (translation.y - limits[1][0]) * influence;
 		}
-		}
-		if ((flag & LIMIT_YMAX) != 0) {
-			if (translation.y > limits[1][1]) {
+		if ((flag & LIMIT_YMAX) != 0 && translation.y > limits[1][1]) {
 			translation.y -= (translation.y - limits[1][1]) * influence;
 		}
-		}
-		if ((flag & LIMIT_ZMIN) != 0) {
-			if (translation.z < limits[2][0]) {
+		if ((flag & LIMIT_ZMIN) != 0 && translation.z < limits[2][0]) {
 			translation.z -= (translation.z - limits[2][0]) * influence;
 		}
-		}
-		if ((flag & LIMIT_ZMAX) != 0) {
-			if (translation.z > limits[2][1]) {
+		if ((flag & LIMIT_ZMAX) != 0 && translation.z > limits[2][1]) {
 			translation.z -= (translation.z - limits[2][1]) * influence;
 		}
 	}
 }
-}

engine/src/blender/com/jme3/scene/plugins/blender/constraints/definitions/ConstraintDefinitionNull.java

@@ -15,5 +15,7 @@ import com.jme3.scene.plugins.blender.file.Structure;
 	}
 	
 	@Override
-	public void bake(Transform ownerTransform, Transform targetTransform, float influence) { }
+	public void bake(Transform ownerTransform, Transform targetTransform, float influence) { 
+		//null constraint does nothing so no need to implement this one
+	}
 }

engine/src/blender/com/jme3/scene/plugins/blender/constraints/definitions/ConstraintDefinitionRotLimit.java

@@ -15,7 +15,7 @@ import com.jme3.scene.plugins.blender.file.Structure;
 	private static final int	LIMIT_YROT	= 0x02;
 	private static final int	LIMIT_ZROT	= 0x04;
 
-	private float[][]			limits		= new float[3][2];
+	private transient float[][]	limits		= new float[3][2];
 	private transient float[]	angles 		= new float[3];
 	
 	public ConstraintDefinitionRotLimit(Structure constraintData, BlenderContext blenderContext) {

engine/src/blender/com/jme3/scene/plugins/blender/constraints/definitions/ConstraintDefinitionSizeLimit.java

@@ -17,7 +17,7 @@ import com.jme3.scene.plugins.blender.file.Structure;
 	private static final int LIMIT_ZMIN = 0x10;
 	private static final int LIMIT_ZMAX = 0x20;
 	
-	protected float[][] limits = new float[3][2];
+	protected transient float[][] limits = new float[3][2];
 	
 	public ConstraintDefinitionSizeLimit(Structure constraintData, BlenderContext blenderContext) {
 		super(constraintData, blenderContext);

engine/src/blender/com/jme3/scene/plugins/blender/curves/CurvesHelper.java

@@ -461,6 +461,7 @@ public class CurvesHelper extends AbstractBlenderHelper {
     protected List<Geometry> applyBevelAndTaper(Curve curve, List<Geometry> bevelObject, Spline taperObject,
             boolean smooth, BlenderContext blenderContext) {
     	Vector3f[] curvePoints = BufferUtils.getVector3Array(curve.getFloatBuffer(Type.Position));
+    	Vector3f subtractResult = new Vector3f();
         float curveLength = curve.getLength();
         
         FloatBuffer[] vertexBuffers = new FloatBuffer[bevelObject.size()];
@@ -488,7 +489,6 @@ public class CurvesHelper extends AbstractBlenderHelper {
 				//equal to the distance between the points on curve that define the bevel position
 				//so instead doing complicated rotations on each point we will simply properly translate each of them
 				
-				Vector3f subtractResult = new Vector3f();
 				int[][] pointIndexes = new int[][] { { 0, 1 }, { curvePoints.length - 1, curvePoints.length - 2 } };
 				for(int[] indexes : pointIndexes) {
 					float distance = curvePoints[indexes[1]].subtract(curvePoints[indexes[0]], subtractResult).length();
@@ -506,7 +506,7 @@ public class CurvesHelper extends AbstractBlenderHelper {
 			float lengthAlongCurve = 0;
 			for(int i=0;i<curvePoints.length; ++i) {
 				if(i > 0) {
-					lengthAlongCurve += curvePoints[i].subtract(curvePoints[i - 1]).length();
+					lengthAlongCurve += curvePoints[i].subtract(curvePoints[i - 1], subtractResult).length();
 				}
 				float taperScale = this.getTaperScale(taperObject, i == 0 ? 0 : lengthAlongCurve / curveLength);
 				this.applyScale(bevels.get(i), curvePoints[i], taperScale);

engine/src/blender/com/jme3/scene/plugins/blender/exceptions/BlenderFileException.java

@@ -43,6 +43,7 @@ public class BlenderFileException extends Exception {
      * Constructor. Creates an exception with no description.
      */
     public BlenderFileException() {
+    	//this constructor has no message
     }
 
     /**

engine/src/blender/com/jme3/scene/plugins/blender/file/BlenderInputStream.java

@@ -379,7 +379,12 @@ public class BlenderInputStream extends InputStream {
     }
 
     @Override
-    public void close() throws IOException { }
+    public void close() throws IOException { 
+    	//this method is unimplemented because some loaders (ie. TGALoader) have flaws that close the stream given from the outside
+    	//because the images can be stored directly in the blender file then this stream is properly positioned and given to the loader
+    	//to read the image file, that is why we do not want it to be closed before the reading is done
+    	//to properly close the stream use forceClose() method
+    }
     
     /**
      * This method should be used to close the stream because some loaders may close the stream while reading resources from it.