Improved the prioritized block spawn list by adding more block types.

src/EditSession.java

@@ -70,28 +70,11 @@ public class EditSession {
      * reproduction.
      */
     private boolean queued = false;
-    /**
-     * List of object types to queue.
-     */
-    private static final HashSet<Integer> queuedBlocks = new HashSet<Integer>();
     /**
      * Random number generator.
      */
     private static Random prng = new Random();
 
-    static {
-        queuedBlocks.add(50); // Torch
-        queuedBlocks.add(37); // Yellow flower
-        queuedBlocks.add(38); // Red rose
-        queuedBlocks.add(39); // Brown mushroom
-        queuedBlocks.add(40); // Red mushroom
-        queuedBlocks.add(59); // Crops
-        queuedBlocks.add(63); // Sign
-        queuedBlocks.add(75); // Redstone torch (off)
-        queuedBlocks.add(76); // Redstone torch (on)
-        queuedBlocks.add(84); // Reed
-    }
-
     /**
      * Default constructor. There is no maximum blocks limit.
      */
@@ -200,12 +183,12 @@ public class EditSession {
      */
     private boolean smartSetBlock(Vector pt, BaseBlock block) {
         if (queued) {
-            if (!block.isAir() && queuedBlocks.contains(block.getID())
+            if (!block.isAir() && BlockType.shouldPlaceLast(block.getID())
                     && rawGetBlock(pt.add(0, -1, 0)).isAir()) {
                 queue.put(pt.toBlockVector(), block);
                 return getBlock(pt).getID() != block.getID();
             } else if (block.isAir()
-                    && queuedBlocks.contains(rawGetBlock(pt.add(0, 1, 0)).getID())) {
+                    && BlockType.shouldPlaceLast(rawGetBlock(pt.add(0, 1, 0)).getID())) {
                 rawSetBlock(pt.add(0, 1, 0), new BaseBlock(0)); // Prevent items from being dropped
             }
         }

src/com/sk89q/worldedit/blocks/BlockType.java

@@ -192,4 +192,48 @@ public enum BlockType {
     public String getName() {
         return name;
     }
+
+    /**
+     * Checks to see whether a block should be placed last.
+     *
+     * @param id
+     * @return
+     */
+    public boolean shouldPlaceLast() {
+        return shouldPlaceLast(id);
+    }
+
+    /**
+     * Checks to see whether a block should be placed last.
+     * 
+     * @param id
+     * @return
+     */
+    public static boolean shouldPlaceLast(int id) {
+        return id == 6 // Saplings
+                || id == 37 // Yellow flower
+                || id == 38 // Red flower
+                || id == 39 // Brown mushroom
+                || id == 40 // Red mush room
+                || id == 50 // Torch
+                || id == 51 // Fire
+                || id == 55 // Redstone wire
+                || id == 59 // Crops
+                || id == 63 // Sign post
+                || id == 64 // Wooden door
+                || id == 65 // Ladder
+                || id == 66 // Minecart tracks
+                || id == 68 // Wall sign
+                || id == 69 // Lever
+                || id == 70 // Stone pressure plate
+                || id == 71 // Iron door
+                || id == 72 // Wooden pressure plate
+                || id == 75 // Redstone torch (off)
+                || id == 76 // Redstone torch (on)
+                || id == 77 // Stone button
+                || id == 78 // Snow
+                || id == 81 // Cactus
+                || id == 83 // Reed
+                || id == 90; // Portal
+    }
 }