Property for tab navigation

Added Engine.tabNavigation property. When true, it enables keyboard navigation to/from tabs. It is disabled on world and enabled some milliseconds after Path.onArrival(), so that when player returns s/he finds him/herself on Path tab instead of navigating.

script/engine.js

@@ -593,6 +593,14 @@
 			//return (num > 0 ? "+" : "") + num + " per " + delay + "s";
 		},
 
+		tabNavigation: true,
+
+		restoreNavigation: function(){
+			setTimeout(function(){
+				Engine.tabNavigation = true;
+			},100);
+		},
+	
 		keyDown: function(e) {
 			e = e || window.event;
 			if(!Engine.keyPressed && !Engine.keyLock) {
@@ -628,6 +636,7 @@
 						break;
 					case 37: // Left
 					case 65:
+						if(Engine.tabNavigation){
 							if(Engine.activeModule == Ship && Path.tab)
 								Engine.travelTo(Path);
 							else if(Engine.activeModule == Path && Outside.tab){
@@ -637,10 +646,12 @@
 								Engine.activeModule.scrollSidebar('left', true);
 								Engine.travelTo(Room);
 							}
+						}
 						Engine.log('left');
 						break;
 					case 39: // Right
 					case 68:
+						if(Engine.tabNavigation){
 							if(Engine.activeModule == Room && Outside.tab)
 								Engine.travelTo(Outside);
 							else if(Engine.activeModule == Outside && Path.tab){
@@ -650,6 +661,7 @@
 								Engine.activeModule.scrollSidebar('right', true);
 								Engine.travelTo(Ship);
 							}
+						}
 						Engine.log('right');
 						break;
 				}

script/world.js

@@ -823,6 +823,7 @@ var World = {
 					$('#outerSlider').animate({opacity:'1'}, 600, 'linear');
 					Button.cooldown($('#embarkButton'));
 					Engine.keyLock = false;
+					Engine.restoreNavigation();
 				}, 2000, true);
 			});
 		}
@@ -865,6 +866,7 @@ var World = {
 		$('#outerSlider').animate({left: '0px'}, 300);
 		Engine.activeModule = Path;
 		Path.onArrival();
+		Engine.restoreNavigation();
 	},
 	
 	leaveItAtHome: function(thing) {