my sprite dont show in libgdx - libgdx

Question

Hi i am new to libgdx and try to build a ludo game.right know i could draw the board but when i try to show dice or any peaces nothing happens I attach game code .
please read and help.
public void create() {
float w = Gdx.graphics.getWidth();
float h = Gdx.graphics.getHeight();
batch = new SpriteBatch();
camera = new OrthographicCamera(1, h / w);
boardtexture = new Texture(Gdx.files.internal("data/ludo-boardx2.png"));
boardtexture.setFilter(TextureFilter.Linear, TextureFilter.Linear);
boardsprite = new Sprite(boardtexture);
boardsprite.setSize(1f,
1f * boardsprite.getHeight() / boardsprite.getWidth());
boardsprite.setOrigin(boardsprite.getWidth() / 2,
boardsprite.getHeight() / 2);
boardsprite.setPosition(-boardsprite.getWidth() / 2,
-boardsprite.getHeight() / 2);
Texture dice = new Texture(Gdx.files.internal("data/dices.png"));
dice.setFilter(TextureFilter.Linear, TextureFilter.Linear);
dtemp = new Sprite(dice);
dtemp.setSize(1f, 1f * dtemp.getHeight() / dtemp.getWidth());
dtemp.setPosition(0f, 0f);
// System.out.println(w/2+" " +h/2);
// System.out.println(dtemp.getWidth()+":"+dtemp.getHeight());
// animatedDice.setPosition(new Vector2(0, 0));
System.out.println(animatedDice.getX() + ":" + animatedDice.getY()
+ "\n" + w + ":" + h);
}
public void render() {
Gdx.gl.glClearColor(1, 1, 1, 1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
batch.setProjectionMatrix(camera.combined);
// camera.update();
handleInput();
batch.begin();
boardsprite.draw(batch);
dtemp.draw(batch);
//animatedDice.draw(batch);
batch.end();
// animatedDice.update();
}

Answer 1

You are drawing your die at a position of (w/2, h/2), which is way out of range of your viewport. You set your viewport so the X coordinate of the right side of your screen is 0.5, but your sprite's left side is at x=w/2, where w is the number of pixels wide your window is.
Even if you had set your camera size to match the window ((w, h)), you would have an issue here because you'd be drawing your sprite so its left edge matched the right edge of the screen. By default, the origin of your die sprite will be its lower left corner.
If you aren't planning to zoom your scene in and out, it might be simpler to set your camera viewport to the size of the window by using camera = new OrthographicCamera(w, h); Then you'll know that your units are equivalent to pixels.