Add stickiness context to the extend/retract events, fixes #947

src/main/java/net/aufdemrand/denizen/scripts/containers/core/BukkitWorldScriptHelper.java

@@ -531,8 +531,9 @@ public void blockIgnite(BlockIgniteEvent event) {
     // @Context
     // <context.location> returns the dLocation of the piston.
     // <context.material> returns the dMaterial of the piston.
-    // <context.length> returns the number of blocks that will be moved by the piston.
+    // <context.length> returns an Element of the number of blocks that will be moved by the piston.
     // <context.blocks> returns a dList of all block locations about to be moved.
+    // <context.sticky> returns an Element of whether the piston is sticky.
     //
     // @Determine
     // "CANCELLED" to stop the piston from extending.
@@ -547,6 +548,7 @@ public void blockPistonExtend(BlockPistonExtendEvent event) {
         context.put("location", new dLocation(event.getBlock().getLocation()));
         context.put("material", material);
         context.put("length", new Element(event.getLength()));
+        context.put("sticky", new Element(event.isSticky() ? "true": "false"));
 
         dList blocks = new dList();
         for (Block block: event.getBlocks())
@@ -573,6 +575,7 @@ public void blockPistonExtend(BlockPistonExtendEvent event) {
     // <context.retract_location> returns the new dLocation of the block that
     //                            will be moved by the piston if it is sticky.
     // <context.material> returns the dMaterial of the piston.
+    // <context.sticky> returns an Element of whether the piston is sticky.
     //
     // @Determine
     // "CANCELLED" to stop the piston from retracting.
@@ -587,6 +590,7 @@ public void blockPistonRetract(BlockPistonRetractEvent event) {
         context.put("location", new dLocation(event.getBlock().getLocation()));
         context.put("retract_location", new dLocation(event.getRetractLocation()));
         context.put("material", material);
+        context.put("sticky", new Element(event.isSticky() ? "true": "false"));
 
         String determination = doEvents(Arrays.asList
                 ("piston retracts",
@@ -1590,8 +1594,8 @@ public void entityPortalExit(EntityPortalExitEvent event) {
         else if (entity.isPlayer()) player = new dPlayer(entity.getPlayer());
 
         doEvents(Arrays.asList
-                ("entity exits portal",
-                        entity.identifyType() + " exits portal"),
+                        ("entity exits portal",
+                                entity.identifyType() + " exits portal"),
                 npc, player, context, true);
     }