Move away from using pixel coordinates to "board coordinates"

Changed aspect ratio from 4:3 to 9:16

core/src/com/me/brickbuster/BrickBuster.java

@@ -3,16 +3,23 @@ package com.me.brickbuster;
 import com.badlogic.gdx.Game;
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.graphics.OrthographicCamera;
 import com.badlogic.gdx.graphics.g2d.BitmapFont;
 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
 import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+import com.badlogic.gdx.utils.viewport.StretchViewport;
+import com.badlogic.gdx.utils.viewport.Viewport;
 import com.me.brickbuster.state.PlayState;
 
 public class BrickBuster extends Game {
 
-	public static final int WIDTH = 800;
-	public static final int HEIGHT = 600;
 	public static final String TITLE = "Brick Buster";
+	// 9*16 board area
+	public static final int BOARD_WIDTH = 2250;
+	public static final int BOARD_HEIGHT = 4000;
+
+	public OrthographicCamera cam;
+	public Viewport viewport;
 
 	public BitmapFont font;
 	public SpriteBatch sb;
@@ -20,6 +27,10 @@ public class BrickBuster extends Game {
 
 	@Override
 	public void create () {
+		cam = new OrthographicCamera();
+		viewport = new StretchViewport(BOARD_WIDTH, BOARD_HEIGHT, cam);
+		viewport.apply(true);
+
 		font = new BitmapFont();
 		sb = new SpriteBatch();
 		sr = new ShapeRenderer();
@@ -35,4 +46,14 @@ public class BrickBuster extends Game {
 		super.render();
 	}
 
+	@Override
+	public void resize(int width, int height) {
+		viewport.update(width, height);
+
+		sb.setProjectionMatrix(cam.combined);
+		sr.setProjectionMatrix(cam.combined);
+
+		super.resize(width, height);
+	}
+
 }

core/src/com/me/brickbuster/entity/Ball.java

@@ -27,7 +27,7 @@ public class Ball extends Entity {
 	private boolean isDead = false;
 
 	public Ball(PlayState state) {
-		super(state,BrickBuster.WIDTH/2, state.paddle.getY() + Paddle.PADDLE_HEIGHT + RADIUS);
+		super(state,BrickBuster.BOARD_WIDTH /2, state.paddle.getY() + Paddle.PADDLE_HEIGHT + RADIUS);
 		this.speed = state.bricks.size() > BLOCKS_FOR_BOOST? DEFAULT_SPEED : BOOST_SPEED;
 	}
 
@@ -73,9 +73,9 @@ public class Ball extends Entity {
 			}
 		}
 
-		if (new_pos.x + RADIUS > BrickBuster.WIDTH || new_pos.x - RADIUS < 0) {
+		if (new_pos.x + RADIUS > BrickBuster.BOARD_WIDTH || new_pos.x - RADIUS < 0) {
 			Utils.reflect(direction, Utils.VERTICAL_EDGE);
-		} else if (new_pos.y + RADIUS > BrickBuster.HEIGHT) {
+		} else if (new_pos.y + RADIUS > BrickBuster.BOARD_HEIGHT) {
 			Utils.reflect(direction, Utils.HORIZONTAL_EDGE);
 		} else if (state.getShieldCount() > 0
 					&& new_pos.y - RADIUS < PlayState.SHIELD_HEIGHT * state.getShieldCount()) {

core/src/com/me/brickbuster/entity/Paddle.java

@@ -22,7 +22,7 @@ public class Paddle extends Entity {
 	private boolean sticky = false;
 
 	public Paddle(PlayState brickBuster) {
-		super(brickBuster, BrickBuster.WIDTH / 2, PADDLE_Y);
+		super(brickBuster, BrickBuster.BOARD_WIDTH / 2, PADDLE_Y);
 	}
 
 	@Override
@@ -49,8 +49,8 @@ public class Paddle extends Entity {
 			}
 		}
 		if (Gdx.input.isKeyPressed(Input.Keys.RIGHT)) {
-			if (pos.x + width/2 + PADDLE_SPEED * dt > BrickBuster.WIDTH) {
+			if (pos.x + width/2 + PADDLE_SPEED * dt > BrickBuster.BOARD_WIDTH) {
-				setX(BrickBuster.WIDTH - width/2);
+				setX(BrickBuster.BOARD_WIDTH - width/2);
 				return;
 			}
 			pos.x = pos.x + PADDLE_SPEED * dt;

core/src/com/me/brickbuster/state/PlayState.java

@@ -47,7 +47,7 @@ public class PlayState extends State {
 				if (MathUtils.randomBoolean(POWERUP_CHANCE)) {
 					powerUpType = getWeightedPowerUp();
 				}
-				bricks.add(new Brick(this, powerUpType, x, BrickBuster.HEIGHT - y));
+				bricks.add(new Brick(this, powerUpType, x, BrickBuster.BOARD_HEIGHT - y));
 			}
 		}
 
@@ -72,7 +72,7 @@ public class PlayState extends State {
 		if (getShieldCount() > 0) {
 			game.sr.begin(ShapeType.Filled);
 			game.sr.setColor(Color.SALMON);
-			game.sr.rect(0, 0, BrickBuster.WIDTH, getShieldCount() * SHIELD_HEIGHT);
+			game.sr.rect(0, 0, BrickBuster.BOARD_WIDTH, getShieldCount() * SHIELD_HEIGHT);
 			game.sr.end();
 		}
 		long renderTime = System.nanoTime() - start;

desktop/src/com/me/brickbuster/desktop/DesktopLauncher.java

@@ -7,9 +7,10 @@ import com.me.brickbuster.BrickBuster;
 public class DesktopLauncher {
 	public static void main (String[] arg) {
 		LwjglApplicationConfiguration config = new LwjglApplicationConfiguration();
-		config.width = BrickBuster.WIDTH;
+		config.width = 450;
-		config.height = BrickBuster.HEIGHT;
+		config.height = 800;
 		config.title = BrickBuster.TITLE;
 		new LwjglApplication(new BrickBuster(), config);
+
 	}
 }