namespace desktop -> test, move classes into desktop dir

7 files changed, 809 insertions, 3 deletions

diff --git a/desktop/src/ch/asynk/zproject/desktop/Assets.java b/desktop/src/ch/asynk/zproject/desktop/Assets.java
new file mode 100644
index 0000000..e89d2a9
--- /dev/null
+++ b/desktop/src/ch/asynk/zproject/desktop/Assets.java
@@ -0,0 +1,78 @@
+package ch.asynk.gdx.board.test;
+
+import com.badlogic.gdx.assets.loaders.FileHandleResolver;
+import com.badlogic.gdx.assets.loaders.resolvers.InternalFileHandleResolver;
+import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.graphics.g2d.BitmapFont;
+import com.badlogic.gdx.graphics.g2d.TextureAtlas;
+import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator;
+import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGeneratorLoader;
+import com.badlogic.gdx.graphics.g2d.freetype.FreetypeFontLoader;
+import com.badlogic.gdx.graphics.g2d.freetype.FreetypeFontLoader.FreeTypeFontLoaderParameter;
+
+public class Assets extends ch.asynk.gdx.board.engine.Assets
+{
+    public static final String LOADING = "loading.atlas";
+
+    public static final String CORNER = "corner.png";
+    public static final String MAP_00 = "map_00.png";
+    public static final String CHESS = "chess.jpg";
+    public static final String FONT = "veteran-typewriter.ttf";
+    public static final String FONT_20 = "size20.ttf";
+    public static final String FONT_25 = "size25.ttf";
+    public static final String PATCH = "ui-patch.png";
+
+    private final FreeTypeFontLoaderParameter params20;
+    private final FreeTypeFontLoaderParameter params25;
+
+    public Assets()
+    {
+        super();
+        final FileHandleResolver resolver = new InternalFileHandleResolver();
+        setLoader(FreeTypeFontGenerator.class, new FreeTypeFontGeneratorLoader(resolver));
+        setLoader(BitmapFont.class, ".ttf", new FreetypeFontLoader(resolver));
+        params20 = new FreeTypeFontLoaderParameter();
+        params20.fontFileName = FONT;
+        params20.fontParameters.size = 20;
+        params25 = new FreeTypeFontLoaderParameter();
+        params25.fontFileName = FONT;
+        params25.fontParameters.size = 25;
+    }
+
+    @Override public void dispose()
+    {
+        GdxBoardTest.debug("diagnostics:\n" + getDiagnostics() );
+        clear();
+        super.dispose();
+    }
+
+    public void loadLoading()
+    {
+        load(LOADING, TextureAtlas.class);
+    }
+
+    public void unloadLoading()
+    {
+        unload(LOADING);
+    }
+
+    public void loadGame()
+    {
+        load(MAP_00, Texture.class);
+        load(CHESS, Texture.class);
+        load(CORNER, Texture.class);
+        load(PATCH, Texture.class);
+        load(FONT_20, BitmapFont.class, params20);
+        load(FONT_25, BitmapFont.class, params25);
+    }
+
+    public void unloadGame()
+    {
+        unload(MAP_00);
+        unload(CHESS);
+        unload(CORNER);
+        unload(PATCH);
+        unload(FONT_20);
+        unload(FONT_25);
+    }
+}
diff --git a/desktop/src/ch/asynk/zproject/desktop/DesktopLauncher.java b/desktop/src/ch/asynk/zproject/desktop/DesktopLauncher.java
index fbdd77c..0e14b17 100644
--- a/desktop/src/ch/asynk/zproject/desktop/DesktopLauncher.java
+++ b/desktop/src/ch/asynk/zproject/desktop/DesktopLauncher.java
@@ -1,13 +1,12 @@
-package ch.asynk.gdx.board.desktop;
+package ch.asynk.gdx.board.test;
 
 import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
 import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration;
-import ch.asynk.gdx.board.ZProject;
 
 public class DesktopLauncher {
 	public static void main (String[] arg) {
 		LwjglApplicationConfiguration config = new LwjglApplicationConfiguration();
-		new LwjglApplication(new ZProject(), config);
+		new LwjglApplication(new GdxBoardTest(), config);
         config.width=800;
         config.height=600;
 	}
diff --git a/desktop/src/ch/asynk/zproject/desktop/GameBoard.java b/desktop/src/ch/asynk/zproject/desktop/GameBoard.java
new file mode 100644
index 0000000..a2343db
--- /dev/null
+++ b/desktop/src/ch/asynk/zproject/desktop/GameBoard.java
@@ -0,0 +1,110 @@
+package ch.asynk.gdx.board.test;
+
+import com.badlogic.gdx.graphics.g2d.Batch;
+import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.utils.Disposable;
+import com.badlogic.gdx.math.Vector2;
+
+import ch.asynk.gdx.board.engine.Touchable;
+import ch.asynk.gdx.board.engine.Board;
+import ch.asynk.gdx.board.engine.board.BoardFactory;
+
+public class GameBoard implements Disposable, Touchable
+{
+    private final Assets assets;
+    private Texture map;
+    private Board board;
+
+    private int dx;
+    private int dy;
+    private int w;
+    private int h;
+    private float r;
+
+    private Vector2 v;
+
+    public GameBoard(final Assets assets)
+    {
+        this.assets = assets;
+        this.v = new Vector2();
+        setState(GameScreen.State.UI);
+    }
+
+    @Override public void dispose()
+    {
+        map.dispose();
+    }
+
+    @Override public boolean touch(float x, float y)
+    {
+        board.toBoard(x, y, v);
+        GdxBoardTest.debug("BoardGame", String.format("touchDown [%d;%d] => [%d;%d]", (int)x, (int)y, (int)v.x, (int)v.y));
+        board.centerOf((int)v.x, (int)v.y, v);
+        GdxBoardTest.debug("BoardGame", String.format("                  => [%d;%d]", (int)v.x, (int)v.y));
+        return true;
+    }
+
+    public void setState(GameScreen.State state)
+    {
+        switch (state) {
+            case UI:
+            case HEX_V:
+                setHEX_V();
+                break;
+            case HEX_H:
+                setHEX_H();
+                break;
+            case SQUARE:
+                setSQUARE();
+                break;
+        }
+    }
+
+    private void setHEX_V()
+    {
+        this.map = assets.getTexture(assets.MAP_00);
+        r = 0;
+        dx = 0;
+        dy = 0;
+        w = this.map.getWidth();
+        h = this.map.getHeight();
+        this.board = BoardFactory.getBoard(BoardFactory.BoardType.HEX, 110, 50, 103, BoardFactory.BoardOrientation.VERTICAL);
+    }
+
+    private void setHEX_H()
+    {
+        this.map = assets.getTexture(assets.MAP_00);
+        r = 90;
+        dx = - ( this.map.getWidth() - this.map.getHeight() ) / 2;
+        dy = - dx;
+        w = this.map.getHeight();
+        h = this.map.getWidth();
+        this.board = BoardFactory.getBoard(BoardFactory.BoardType.HEX, 110, 103, 50, BoardFactory.BoardOrientation.HORIZONTAL);
+    }
+
+    private void setSQUARE()
+    {
+        this.map = assets.getTexture(assets.CHESS);
+        r = 0;
+        dx = 0;
+        dy = 0;
+        w = map.getHeight();
+        h = map.getWidth();
+        this.board = BoardFactory.getBoard(BoardFactory.BoardType.SQUARE, 83, 5, 5);
+    }
+
+    public int getWidth()
+    {
+        return w;
+    }
+
+    public int getHeight()
+    {
+        return h;
+    }
+
+    public void draw(Batch batch)
+    {
+        batch.draw(map, dx, dy, map.getWidth()/2, map.getHeight()/2, map.getWidth(), map.getHeight(), 1, 1, r, 0, 0, map.getWidth(), map.getHeight(), false, false);
+    }
+}
diff --git a/desktop/src/ch/asynk/zproject/desktop/GameHud.java b/desktop/src/ch/asynk/zproject/desktop/GameHud.java
new file mode 100644
index 0000000..d2c8649
--- /dev/null
+++ b/desktop/src/ch/asynk/zproject/desktop/GameHud.java
@@ -0,0 +1,155 @@
+package ch.asynk.gdx.board.test;
+
+import java.util.function.Supplier;
+
+import com.badlogic.gdx.graphics.g2d.Batch;
+import com.badlogic.gdx.graphics.g2d.Sprite;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+import com.badlogic.gdx.utils.Disposable;
+
+import ch.asynk.gdx.board.engine.ui.Button;
+import ch.asynk.gdx.board.engine.ui.Alignment;
+import ch.asynk.gdx.board.engine.ui.Root;
+import ch.asynk.gdx.board.engine.Touchable;
+
+public class GameHud implements Disposable, Touchable
+{
+    private final Sprite corner;
+    private final Root root;
+    private final Button hello;
+    private final Button next;
+    private GameScreen.State state;
+    private final Supplier<GameScreen.State> nextState;
+
+    public GameHud(final Assets assets, GameScreen.State state, Supplier<GameScreen.State> nextState)
+    {
+        this.state = state;
+        this.nextState = nextState;
+        this.corner = new Sprite(assets.getTexture(assets.CORNER));
+
+        this.root = new Root(2);
+        this.root.setPadding(30);
+
+        this.hello = new Button(assets.getFont(assets.FONT_25), assets.getNinePatch(assets.PATCH, 23, 23, 23 ,23), 10, 15);
+        this.hello.write("Hello");
+        this.root.add(this.hello);
+
+        this.next = new Button(assets.getFont(assets.FONT_25), assets.getNinePatch(assets.PATCH, 23, 23, 23 ,23), 20, 0);
+        this.next.write("NEXT");
+        this.next.setPosition(50, 50);
+        this.next.setAlignment(Alignment.MIDDLE_CENTER);
+        this.next.setLabelAlignment(Alignment.MIDDLE_CENTER);
+        this.root.add(this.next);
+    }
+
+    @Override public void dispose()
+    {
+        corner.getTexture().dispose();
+    }
+
+    @Override public boolean touch(float x, float y)
+    {
+        if (root.touch(x, y)) {
+            GdxBoardTest.debug("GameHud", String.format("touchDown : %f %f", x, y));
+            if (root.touched() == this.next)
+                onNext();
+            return true;
+        }
+        return false;
+    }
+
+    public void resize(float width, float height)
+    {
+        this.root.resize(width, height);
+    }
+
+    public void onNext()
+    {
+        this.state = nextState.get();
+        switch (this.state) {
+            case UI:
+                updateNext(50, Alignment.MIDDLE_CENTER);
+                this.root.add(this.hello);
+                break;
+            case HEX_V:
+                updateNext(0, Alignment.BOTTOM_RIGHT);
+                this.root.remove(this.hello);
+                break;
+            case HEX_H:
+                break;
+        }
+    }
+
+    private void updateNext(int p, Alignment a)
+    {
+        this.next.setPosition(p, p);
+        this.next.setAlignment(a);
+        this.next.update();
+    }
+
+    public void draw(Batch batch)
+    {
+        switch (this.state) {
+            case UI:
+                drawButtons(batch);
+                drawCorners(batch);
+                break;
+            case HEX_V:
+            case HEX_H:
+                drawRoot(batch);
+                break;
+        }
+    }
+
+    private void drawRoot(Batch batch)
+    {
+        root.draw(batch);
+    }
+
+    private void drawCorners(Batch batch)
+    {
+        float right = root.getX() + root.getWidth() - corner.getWidth();
+        float top = root.getY() + root.getHeight() - corner.getHeight();
+        corner.setRotation(0);
+        corner.setPosition(root.getX(), top);
+        corner.draw(batch);
+        corner.setRotation(90);
+        corner.setPosition(root.getX(), root.getY());
+        corner.draw(batch);
+        corner.setRotation(180);
+        corner.setPosition(right, root.getY());
+        corner.draw(batch);
+        corner.setPosition(right, top);
+        corner.setRotation(270);
+        corner.draw(batch);
+    }
+
+    private void drawButtons(Batch batch)
+    {
+        hello.setAlignment(Alignment.TOP_LEFT);
+        hello.setLabelAlignment(Alignment.BOTTOM_RIGHT);
+        hello.update();
+        root.draw(batch);
+        drawHello(batch, Alignment.TOP_CENTER, Alignment.BOTTOM_CENTER);
+        drawHello(batch, Alignment.TOP_RIGHT, Alignment.BOTTOM_LEFT);
+        drawHello(batch, Alignment.MIDDLE_LEFT, Alignment.MIDDLE_RIGHT);
+        // drawHello(batch, Alignment.MIDDLE_CENTER, Alignment.MIDDLE_CENTER);
+        drawHello(batch, Alignment.MIDDLE_RIGHT, Alignment.MIDDLE_LEFT);
+        drawHello(batch, Alignment.BOTTOM_LEFT, Alignment.TOP_RIGHT);
+        drawHello(batch, Alignment.BOTTOM_CENTER, Alignment.TOP_CENTER);
+        drawHello(batch, Alignment.BOTTOM_RIGHT, Alignment.TOP_LEFT);
+    }
+
+    private void drawHello(Batch batch, Alignment alignment1, Alignment alignment2)
+    {
+        hello.setAlignment(alignment1);
+        hello.setLabelAlignment(alignment2);
+        hello.update();
+        hello.draw(batch);
+    }
+
+    public void drawDebug(ShapeRenderer debugShapes)
+    {
+        root.drawDebug(debugShapes);
+    }
+}
diff --git a/desktop/src/ch/asynk/zproject/desktop/GameScreen.java b/desktop/src/ch/asynk/zproject/desktop/GameScreen.java
new file mode 100644
index 0000000..253affa
--- /dev/null
+++ b/desktop/src/ch/asynk/zproject/desktop/GameScreen.java
@@ -0,0 +1,215 @@
+package ch.asynk.gdx.board.test;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.Screen;
+import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+import com.badlogic.gdx.Input;
+import com.badlogic.gdx.InputAdapter;
+import com.badlogic.gdx.InputMultiplexer;
+import com.badlogic.gdx.input.GestureDetector;
+import com.badlogic.gdx.input.GestureDetector.GestureAdapter;
+import com.badlogic.gdx.math.Vector2;
+import com.badlogic.gdx.math.Vector3;
+
+import ch.asynk.gdx.board.engine.Camera;
+
+public class GameScreen implements Screen
+{
+    private static final float INPUT_DELAY = 0.1f;              // filter out touches after gesture
+    private static final float ZOOM_SCROLL_FACTOR = .1f;
+    private static final float ZOOM_GESTURE_FACTOR = .01f;
+
+    private static final boolean DEBUG = true;
+
+    private final GdxBoardTest app;
+    private final GameHud hud;
+    private final GameBoard board;
+    private final Camera camera;
+    private final SpriteBatch batch;
+    private ShapeRenderer debugShapes = null;
+
+    private final Vector2 dragPos = new Vector2();
+    private final Vector3 boardTouch = new Vector3();
+    private final Vector3 hudTouch = new Vector3();
+
+    private boolean paused;
+    private float inputDelay;
+    private boolean inputBlocked;
+
+    public enum State
+    {
+        UI, HEX_V, HEX_H, SQUARE;
+        public State next()
+        {
+            switch(this) {
+                case UI:
+                    return HEX_V;
+                case HEX_V:
+                    return HEX_H;
+                case HEX_H:
+                    return SQUARE;
+                case SQUARE:
+                    return UI;
+                default:
+                    return UI;
+            }
+        }
+    }
+    private State state;
+
+    public GameScreen(final GdxBoardTest app)
+    {
+        this.app = app;
+        this.hud = new GameHud(app.assets, State.UI, () -> nextState());
+        this.board = new GameBoard(app.assets);
+        this.batch = new SpriteBatch();
+        this.camera = new Camera(10, board.getWidth(), board.getHeight(), 1.0f, 0.3f, false);
+        Gdx.input.setInputProcessor(getMultiplexer(this));
+        this.paused = false;
+        this.inputDelay = 0f;
+        this.inputBlocked = false;
+        this.state = State.UI;
+        if (DEBUG) this.debugShapes = new ShapeRenderer();
+    }
+
+    public State nextState()
+    {
+        this.state = this.state.next();
+        this.board.setState(this.state);
+        this.camera.setDimension(board.getWidth(), board.getHeight());
+        zoom(1);
+        return this.state;
+    }
+
+    @Override public void render(float delta)
+    {
+        if (paused) return;
+
+        if (inputBlocked) {
+            inputDelay -= delta;
+            if (inputDelay <= 0f)
+                inputBlocked = false;
+        }
+
+        Gdx.gl.glClearColor(0, 0, 0, 1);
+        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
+
+        camera.applyMapViewport();
+        batch.setProjectionMatrix(camera.combined);
+        batch.begin();
+        board.draw(batch);
+        batch.end();
+
+        camera.applyHudViewport();
+        batch.setProjectionMatrix(camera.getHudMatrix());
+        batch.begin();
+        hud.draw(batch);
+        batch.end();
+
+        if (DEBUG) {
+            Gdx.gl.glEnable(GL20.GL_BLEND);
+            debugShapes.setAutoShapeType(true);
+            debugShapes.setProjectionMatrix(camera.getHudMatrix());
+            debugShapes.begin();
+            hud.drawDebug(debugShapes);
+            debugShapes.end();
+        }
+
+    }
+
+    @Override public void resize(int width, int height)
+    {
+        if (paused) return;
+        GdxBoardTest.debug("GameScreen", String.format("resize (%d,%d)",width, height));
+        camera.updateViewport(width, height);
+        hud.resize(camera.getHud().width, camera.getHud().height);
+    }
+
+    @Override public void dispose()
+    {
+        GdxBoardTest.debug("GameScreen", "dispose()");
+        batch.dispose();
+        if (debugShapes != null) debugShapes.dispose();
+        hud.dispose();
+        board.dispose();
+    }
+
+    @Override public void show()
+    {
+        GdxBoardTest.debug("GameScreen", "show()");
+    }
+
+    @Override public void hide()
+    {
+        GdxBoardTest.debug("GameScreen", "hide()");
+    }
+
+    @Override public void pause()
+    {
+        GdxBoardTest.debug("pause() ");
+        paused = true;
+    }
+
+    @Override public void resume()
+    {
+        GdxBoardTest.debug("resume() ");
+        paused = false;
+        resize(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
+    }
+
+    private void zoom(float dz)
+    {
+        camera.zoom(dz);
+        resize(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
+    }
+
+    private InputMultiplexer getMultiplexer(final GameScreen screen)
+    {
+        final InputMultiplexer multiplexer = new InputMultiplexer();
+        multiplexer.addProcessor(new InputAdapter() {
+            @Override public boolean scrolled(int amount)
+            {
+                screen.zoom(amount * ZOOM_SCROLL_FACTOR);
+                return true;
+            }
+            @Override public boolean touchDown(int x, int y, int pointer, int button)
+            {
+                if (inputBlocked) return true;
+                if (button == Input.Buttons.LEFT) {
+                    dragPos.set(x, y);
+                    camera.unproject(x, y, boardTouch);
+                    camera.unprojectHud(x, y, hudTouch);
+                    if (!hud.touch(hudTouch.x, hudTouch.y)) {
+                        if (state != State.UI)
+                            board.touch(boardTouch.x, boardTouch.y);
+                    }
+                }
+                return true;
+            }
+            @Override public boolean touchDragged(int x, int y, int pointer)
+            {
+                int dx = (int) (dragPos.x - x);
+                int dy = (int) (dragPos.y - y);
+                dragPos.set(x, y);
+                camera.translate(dx, dy);
+                return true;
+            }
+        });
+        multiplexer.addProcessor(new GestureDetector(new GestureAdapter() {
+            @Override public boolean zoom(float initialDistance, float distance)
+            {
+                if (initialDistance > distance)
+                    screen.zoom(ZOOM_GESTURE_FACTOR);
+                else
+                    screen.zoom(-ZOOM_GESTURE_FACTOR);
+                inputBlocked = true;
+                inputDelay = INPUT_DELAY;
+                return true;
+            }
+        }));
+
+        return multiplexer;
+    }
+}
diff --git a/desktop/src/ch/asynk/zproject/desktop/GdxBoardTest.java b/desktop/src/ch/asynk/zproject/desktop/GdxBoardTest.java
new file mode 100644
index 0000000..03726f7
--- /dev/null
+++ b/desktop/src/ch/asynk/zproject/desktop/GdxBoardTest.java
@@ -0,0 +1,83 @@
+package ch.asynk.gdx.board.test;
+
+import com.badlogic.gdx.Game;
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.Screen;
+
+public class GdxBoardTest extends Game
+{
+    public static final String DOM = "GdxBoardTest";
+
+    private enum State
+    {
+        NONE,
+        LOADING,
+        GAME,
+    }
+    private State state;
+
+    public final Assets assets = new Assets();
+
+    @Override public void create()
+    {
+        this.state = State.NONE;
+        Gdx.app.setLogLevel(Gdx.app.LOG_DEBUG);
+        debug(String.format("create() [%d;%d] %f", Gdx.graphics.getWidth(), Gdx.graphics.getHeight(), Gdx.graphics.getDensity()));
+        switchToLoading();
+    }
+
+    @Override public void dispose()
+    {
+        switchToNone();
+        assets.dispose();
+    }
+
+    public static void error(String msg)
+    {
+        Gdx.app.error(DOM, msg);
+    }
+
+    public static void debug(String msg)
+    {
+        Gdx.app.debug(DOM, msg);
+    }
+
+    public static void debug(String from, String msg)
+    {
+        Gdx.app.debug(DOM, String.format("%s : %s", from, msg));
+    }
+
+    private void switchTo(Screen nextScreen, State nextState)
+    {
+        if (state == nextState) {
+            error("switch from and to " + state);
+            return;
+        }
+        switch(state) {
+            case LOADING: assets.unloadLoading(); break;
+            case GAME: assets.unloadGame(); break;
+        }
+        if (state != State.NONE) {
+            getScreen().dispose();
+        }
+        setScreen(nextScreen);
+        this.state = nextState;
+    }
+
+    public void switchToNone()
+    {
+        switchTo(null, State.NONE);
+    }
+
+    public void switchToLoading()
+    {
+        assets.loadLoading();
+        assets.finishLoading();
+        switchTo(new LoadingScreen(this, () -> assets.loadGame(), () -> switchToGame()), State.LOADING);
+    }
+
+    public void switchToGame()
+    {
+        switchTo(new GameScreen(this), State.GAME);
+    }
+}
diff --git a/desktop/src/ch/asynk/zproject/desktop/LoadingScreen.java b/desktop/src/ch/asynk/zproject/desktop/LoadingScreen.java
new file mode 100644
index 0000000..ee6ef2e
--- /dev/null
+++ b/desktop/src/ch/asynk/zproject/desktop/LoadingScreen.java
@@ -0,0 +1,166 @@
+package ch.asynk.gdx.board.test;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.Screen;
+import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.graphics.Color;
+import com.badlogic.gdx.graphics.OrthographicCamera;
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.graphics.g2d.TextureAtlas;
+import com.badlogic.gdx.graphics.g2d.TextureAtlas.AtlasRegion;
+
+public class LoadingScreen implements Screen
+{
+    private final GdxBoardTest app;
+    private final SpriteBatch batch;
+    private final Color c;
+    private final OrthographicCamera camera;
+
+    private final float BLINK_AFTER = 2f;
+    private final float ALPHA_FACTOR = 1.5f;
+
+    private boolean paused;
+    private  TextureAtlas atlas;
+    private  AtlasRegion bar;
+    private  AtlasRegion border;
+    private  AtlasRegion loading;
+    private  AtlasRegion loaded;
+
+    private int x, y;
+    private int count;
+    private float percent;
+    private float alpha;
+    private boolean incr;
+    private boolean isLoaded;
+
+    public interface LoadAction {
+        void call();
+    }
+    private LoadAction onLoaded;
+
+    public LoadingScreen(final GdxBoardTest app, LoadAction startLoading, LoadAction onLoaded)
+    {
+        this.app = app;
+        this.onLoaded = onLoaded;
+        this.batch = new SpriteBatch();
+        this.c = batch.getColor();
+        this.camera = new OrthographicCamera();
+        int w = Gdx.graphics.getWidth();
+        int h = Gdx.graphics.getHeight();
+        this.camera.setToOrtho(false, w, h);
+        this.camera.update();
+        this.paused = false;
+        atlas = app.assets.getAtlas(app.assets.LOADING);
+        bar = atlas.findRegion("bar");
+        border = atlas.findRegion("border");
+        loading = atlas.findRegion("loading");
+        loaded = atlas.findRegion("loaded");
+        computeCoords(w, h);
+        percent = 0f;
+        alpha = 1f;
+        incr = false;
+        isLoaded = false;
+        startLoading.call();
+    }
+
+    private void computeCoords(int width, int height)
+    {
+        x = (width - border.getRegionWidth()) / 2;
+        y = (height - border.getRegionHeight()) / 2;
+    }
+
+    @Override public void render(float delta)
+    {
+        if (paused) return;
+
+        if (!isLoaded) {
+            if (app.assets.update()) {
+                GdxBoardTest.debug("LoadingScreen", "assets loaded");
+                isLoaded = true;
+                percent = 1f;
+            } else {
+                percent = app.assets.getProgress();
+            }
+        }
+
+        if (!isLoaded && percent >= 1f) {
+            count = 0;
+            alpha = 1f;
+            incr = false;
+        }
+
+        delta *= ALPHA_FACTOR;
+        if (incr) {
+            alpha += delta;
+            if (alpha >= 1f ) {
+                alpha = 1f;
+                incr = false;
+                if (isLoaded) count += 1;
+                if (count >= BLINK_AFTER) {
+                    onLoaded.call();
+                    return;
+                }
+            }
+        } else {
+            alpha -= delta;
+            if (alpha <= 0f ) {
+                alpha = 0f;
+                incr = true;
+            }
+        }
+
+        Gdx.gl.glClearColor(0, 0, 0, 1);
+        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
+
+        batch.setProjectionMatrix(camera.combined);
+        batch.begin();
+        batch.setColor(c.r, c.g, c.b, 1f);
+        batch.draw(border, x, y);
+        batch.draw(bar, x + 4, y + 4, percent * bar.getRegionWidth(), bar.getRegionHeight());
+        batch.setColor(c.r, c.g, c.b, alpha);
+        if (!isLoaded) {
+            batch.draw(loading, x, y + border.getRegionHeight() + 3);
+        } else {
+            batch.draw(loaded, x + border.getRegionWidth() - loaded.getRegionWidth(), y - loaded.getRegionHeight() - 3);
+        }
+        batch.end();
+    }
+
+    @Override public void resize(int width, int height)
+    {
+        if (paused) return;
+        GdxBoardTest.debug("LoadingScreen", String.format("resize (%d,%d)",width, height));
+        this.camera.setToOrtho(false, width, height);
+        this.camera.update();
+        computeCoords(width, height);
+    }
+
+    @Override public void dispose()
+    {
+        GdxBoardTest.debug("LoadingScreen", "dispose()");
+        batch.dispose();
+    }
+
+    @Override public void show()
+    {
+        GdxBoardTest.debug("LoadingScreen", "show()");
+    }
+
+    @Override public void hide()
+    {
+        GdxBoardTest.debug("LoadingScreen", "hide()");
+    }
+
+    @Override public void pause()
+    {
+        paused = true;
+        GdxBoardTest.debug("pause() ");
+    }
+
+    @Override public void resume()
+    {
+        GdxBoardTest.debug("resume() ");
+        resize(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
+        paused = false;
+    }
+}