Fix texture disappearing on rotation and block placing for cubes.

src/sig/Block.java

@@ -35,14 +35,24 @@ public class Block {
             if (block instanceof Cube) {
                 Texture t1 = block.triangles.get(Texture.SOUTH).tex;
                 Texture t2 = block.triangles.get(Texture.SOUTH+1).tex;
+                int dir1 = block.triangles.get(Texture.SOUTH).dir;
+                int dir2 = block.triangles.get(Texture.SOUTH+1).dir;
                 block.triangles.get(Texture.SOUTH).tex=block.triangles.get(Texture.EAST).tex;
+                block.triangles.get(Texture.SOUTH).dir=block.triangles.get(Texture.EAST).dir;
                 block.triangles.get(Texture.SOUTH+1).tex=block.triangles.get(Texture.EAST+1).tex;
+                block.triangles.get(Texture.SOUTH+1).dir=block.triangles.get(Texture.EAST+1).dir;
                 block.triangles.get(Texture.EAST).tex=block.triangles.get(Texture.NORTH).tex;
+                block.triangles.get(Texture.EAST).dir=block.triangles.get(Texture.NORTH).dir;
                 block.triangles.get(Texture.EAST+1).tex=block.triangles.get(Texture.NORTH+1).tex;
+                block.triangles.get(Texture.EAST+1).dir=block.triangles.get(Texture.NORTH+1).dir;
                 block.triangles.get(Texture.NORTH).tex=block.triangles.get(Texture.WEST).tex;
+                block.triangles.get(Texture.NORTH).dir=block.triangles.get(Texture.WEST).dir;
                 block.triangles.get(Texture.NORTH+1).tex=block.triangles.get(Texture.WEST+1).tex;
+                block.triangles.get(Texture.NORTH+1).dir=block.triangles.get(Texture.WEST+1).dir;
                 block.triangles.get(Texture.WEST).tex=t1;
+                block.triangles.get(Texture.WEST).dir=dir1;
                 block.triangles.get(Texture.WEST+1).tex=t2;
+                block.triangles.get(Texture.WEST+1).dir=dir2;
                 for (int i=8;i<=11;i++) {
                     Triangle t = block.triangles.get(i);
                     Vector2[] tt = new Vector2[]{t.T,t.U,t.V};

src/sig/Cube.java

@@ -52,6 +52,7 @@ public class Cube extends Mesh{
         if (!b.neighbors.FORWARD) {
             tris.add(b.block.triangles.get(4));
             tris.add(b.block.triangles.get(5));
+            System.out.println("No forward neighbor.");
         }
         if (!b.neighbors.BACKWARD) {
             tris.add(b.block.triangles.get(0));

src/sig/Panel.java

@@ -371,13 +371,17 @@ public class Panel extends JPanel implements Runnable {
             triPreTransform.unmodifiedTri=t;
 
             if (t.b!=null) {
+                if (!(t.b.block instanceof Cube)) {
                     matWorld = Matrix.MakeRotationY((float)(t.b.getFacingDirection().ordinal()*(Math.PI/2)));
-            }
                 
                     triTransformed.A = Matrix.MultiplyVector(matWorld,triPreTransform.A);
                     triTransformed.B = Matrix.MultiplyVector(matWorld,triPreTransform.B);
                     triTransformed.C = Matrix.MultiplyVector(matWorld,triPreTransform.C);
                     triPreTransform.copyExtraDataTo(triTransformed);
+                } else {
+                    triTransformed=triPreTransform;
+                }
+            }
 
             if (t.b!=null) {
                 matWorld = Matrix.MakeTranslation(t.b.pos.x+0.5f,t.b.pos.y,t.b.pos.z+0.5f);

src/sig/SigRenderer.java

@@ -33,7 +33,7 @@ public class SigRenderer implements KeyListener,MouseListener,MouseMotionListene
 
     public static boolean WIREFRAME = false;
     public static boolean PROFILING = false;
-    public static boolean FLYING_MODE = false;
+    public static boolean FLYING_MODE = true;
     public static int SCREEN_WIDTH=1280;
     public static int SCREEN_HEIGHT=720;
     public final static long TIMEPERTICK = 16666667l;
@@ -391,8 +391,8 @@ public class SigRenderer implements KeyListener,MouseListener,MouseMotionListene
     SigRenderer(JFrame f) {
         //cube = new Mesh(OBJReader.ReadOBJFile("teapot.obj",false));
         Random r = new Random(438107);
-        for (int x=0;x<64;x++) {
-            for (int z=0;z<64;z++) {
+        for (int x=0;x<1;x++) {
+            for (int z=0;z<1;z++) {
                 addBlock(new Vector(x,0,z),Cube.class,BlockType.GRASS,FacingDirection.SOUTH);
                 //addBlock(new Vector(x,1,z),Staircase.class,BlockType.JUNGLE_PLANK,FacingDirection.SOUTH);
                 //addBlock(new Vector(x,2,z),Staircase.class,BlockType.SPRUCE_PLANK,FacingDirection.SOUTH);