Added loading bar

src/sg/states/InGameState.java

@@ -1,5 +1,6 @@
 package sg.states;
 
+import java.util.concurrent.Callable;
 import java.util.logging.Logger;
 
 import sg.env.Environment;
@@ -14,8 +15,10 @@ import com.jme.renderer.Renderer;
 import com.jme.scene.Node;
 import com.jme.scene.state.LightState;
 import com.jme.system.DisplaySystem;
+import com.jme.util.GameTaskQueueManager;
 import com.jmex.game.state.CameraGameState;
 import com.jmex.game.state.GameStateManager;
+import com.jmex.game.state.load.LoadingGameState;
 import com.jmex.physics.DynamicPhysicsNode;
 import com.jmex.physics.PhysicsDebugger;
 import com.jmex.physics.PhysicsSpace;
@@ -35,64 +38,25 @@ public class InGameState extends CameraGameState {
 
 	public InGameState(String name) {
 		super(name);
-		// ***************** Load the Game **********************************
-
-		// Pass (render thingies)
-		//passManager = new BasicPassManager();
-
-		//physics
-		physicsSpace = PhysicsSpace.create();
-
-		physicsSpace.setDirectionalGravity(new Vector3f(0f, 0f, 0f));
-		StaticPhysicsNode staticNode = physicsSpace.createStaticNode();
-		DynamicPhysicsNode dynamicNode = physicsSpace.createDynamicNode();
-		rootNode.attachChild(dynamicNode);
-		rootNode.attachChild(staticNode);
-
-		// environment
-		environment = new Environment(rootNode);
-		rootNode.attachChild(environment);
-
-		// ship
-		Node ship = SGUtil.loadModel("sg/data/models/ships/G6.3ds");
-		ship.setLocalTranslation(new Vector3f( 0, 0, 40));
-		rootNode.attachChild(ship);
-
-		// inputs
-		FirstPersonHandler first = new FirstPersonHandler( cam, 50, 1 );
-		input = new InputHandler();
-		input.addToAttachedHandlers( first );
-
-		// lights
-		/** Set up a basic, default light. */
-		PointLight light = new PointLight();
-		light.setDiffuse( new ColorRGBA( 0.75f, 0.75f, 0.75f, 0.75f ) );
-		light.setAmbient( new ColorRGBA( 0.5f, 0.5f, 0.5f, 1.0f ) );
-		light.setLocation( new Vector3f( 100, 100, 100 ) );
-		light.setEnabled( true );
-
-		/** Attach the light to a lightState and the lightState to rootNode. */
-		LightState lightState = DisplaySystem.getDisplaySystem().getRenderer().createLightState();
-		lightState.setEnabled( true );
-		lightState.attach( light );
-		rootNode.setRenderState( lightState );
-		rootNode.updateRenderState();
-
-		HudState hud = new HudState("hud");
-		GameStateManager.getInstance().attachChild(hud);
-
-		cam.setFrustumFar(5000);
-		// ***************** Done loading **********************************
 	}
-
+	
-	public void onActivate(){
+	public void setActive(boolean b){
-		super.onActivate();
+		if(b){ // initiate the game
-		GameStateManager.getInstance().activateChildNamed("hud");
+			if(environment == null){
-	}
+				GameTaskQueueManager.getManager().update(new LoadingTask(this));
-
+				this.active = false;
-	public void onDeactivate(){
+			}
-		super.onDeactivate();
+			else { // the game is already initaiated
-		GameStateManager.getInstance().deactivateChildNamed("hud");
+				this.active = true;
+				onActivate();
+				GameStateManager.getInstance().activateChildNamed("hud");
+			}
+		}
+		else{
+			this.active = false;
+			onDeactivate();
+			GameStateManager.getInstance().deactivateChildNamed("hud");
+		}
 	}
 
 	public void stateUpdate(float tpf) {		
@@ -118,4 +82,112 @@ public class InGameState extends CameraGameState {
 		/** Have the PassManager render. */
 		//passManager.renderPasses(r);
 	}
+	
+	//****************************************************************************
+	//**************************   Loader    *************************************	
+	
+	private class LoadingTask implements Callable<Void>{
+		private static final int STEP_COUNT = 7;
+		private LoadingGameState loader;
+		private InGameState parentState;
+		private int progress;
+
+		public LoadingTask(InGameState parentState){
+			this.parentState = parentState;
+
+			loader = new LoadingGameState(STEP_COUNT+1);
+			GameStateManager.getInstance().attachChild(loader);
+			loader.setActive(true);
+
+			progress = 0;
+			loader.increment("Loading Passes...");
+		}
+
+		public Void call() throws Exception {		
+			// ***************** Load the Game **********************************
+			switch(progress){
+			case 0:
+				// Pass (render thingies)
+				//passManager = new BasicPassManager();
+				
+				loader.increment("Loading Physics...");
+				break;
+			case 1:
+				//physics				
+				physicsSpace = PhysicsSpace.create();
+
+				physicsSpace.setDirectionalGravity(new Vector3f(0f, 0f, 0f));
+				StaticPhysicsNode staticNode = physicsSpace.createStaticNode();
+				DynamicPhysicsNode dynamicNode = physicsSpace.createDynamicNode();
+				rootNode.attachChild(dynamicNode);
+				rootNode.attachChild(staticNode);
+				
+				loader.increment("Loading Environment...");
+				break;
+			case 2:
+				// environment				
+				environment = new Environment(rootNode);
+				rootNode.attachChild(environment);
+				
+				loader.increment("Loading Ships...");
+				break;
+			case 3:
+				// ship			
+				Node ship = SGUtil.loadModel("sg/data/models/ships/G6.3ds");
+				ship.setLocalTranslation(new Vector3f( 0, 0, 40));
+				rootNode.attachChild(ship);
+				
+				loader.increment("Loading Inputs...");
+				break;
+			case 4:
+				// inputs
+				FirstPersonHandler first = new FirstPersonHandler( cam, 50, 1 );
+				input = new InputHandler();
+				input.addToAttachedHandlers( first );
+				
+				loader.increment("Loading Lights...");
+				break;
+			case 5:
+				// lights
+				/** Set up a basic, default light. */
+				PointLight light = new PointLight();
+				light.setDiffuse( new ColorRGBA( 0.75f, 0.75f, 0.75f, 0.75f ) );
+				light.setAmbient( new ColorRGBA( 0.5f, 0.5f, 0.5f, 1.0f ) );
+				light.setLocation( new Vector3f( 100, 100, 100 ) );
+				light.setEnabled( true );
+
+				/** Attach the light to a lightState and the lightState to rootNode. */
+				LightState lightState = DisplaySystem.getDisplaySystem().getRenderer().createLightState();
+				lightState.setEnabled( true );
+				lightState.attach( light );
+				rootNode.setRenderState( lightState );
+				rootNode.updateRenderState();
+				
+				loader.increment("Loading Hud...");
+				break;
+			case 6:
+				HudState hud = new HudState("hud");
+				GameStateManager.getInstance().attachChild(hud);
+				
+				loader.increment("Loading Starting...");
+				break;
+			case 7:
+				cam.setFrustumFar(5000);
+
+				// ***************** Done loading **********************************
+				loader.setActive(false);
+				GameStateManager.getInstance().detachChild(loader);
+
+				parentState.setActive(true);
+				break;
+			}
+
+			if (progress < STEP_COUNT) {				
+				GameTaskQueueManager.getManager().update(this);
+			}
+			progress++;
+			
+			return null;
+		}
+	}
 }