Added so that you see your score if you lose, and have to press the screen to play again.

Jonathan / BallJumper

Browse code Added so that you see your score if you lose, and have to press the screen to play again. Added GameState which keeps track of what to show for the user. A little refactoring. Other minor changes. master
1 parent f2d74a6 commit 0b64c371a6d9b1dbf1a49ee4655f73cff3b53e4c Jonathan Ström authored on 28 Aug 2017

Patch

Showing 3 changed files

Ignore Space Show notes View app/src/main/java/jonathan/balljumper/GameSurfaceView.java
package jonathan.balljumper; import android.app.Activity; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Point; import android.view.MotionEvent; import android.view.SurfaceHolder; import android.view.SurfaceView; import jonathan.balljumper.classes.Ball; import jonathan.balljumper.classes.HighscoreHandler; import jonathan.balljumper.classes.Panel; import jonathan.balljumper.classes.PanelHandler; import jonathan.balljumper.classes.SoundController; import jonathan.balljumper.enums.GameState; /** * Created by Jonathan on 27/07/2017. / public class GameSurfaceView extends SurfaceView implements Runnable { private boolean isRunning = false; private Thread gameThread; private final SurfaceHolder holder; private GameState gameState; private final static Point screenSize = new Point(); public static Point getScreenSize() { return screenSize; } private boolean isTouchDown = false; private long touchStartTime; private float touchMoveDeltaX, touchMoveDeltaY; private final Ball ball; private final PanelHandler panelHandler; private final HighscoreHandler highscoreHandler; private final SoundController soundController; private final static int MAX_FPS = 40; private final static int FRAME_PERIOD = 1000 / MAX_FPS; public GameSurfaceView(Context context) { super(context); // Get and set window size. ((Activity)getContext()).getWindowManager() .getDefaultDisplay() .getSize(screenSize); holder = getHolder(); holder.addCallback(new SurfaceHolder.Callback() { @Override public void surfaceCreated(SurfaceHolder holder) { } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { screenSize.x = width; screenSize.y = height; } @Override public void surfaceDestroyed(SurfaceHolder holder) { } }); this.soundController = new SoundController(context); // Initialize ball. int ballRadius = 35; ball = new Ball(screenSize.x / 2 - ballRadius, (screenSize.y / 3) 2 - ballRadius, ballRadius, 0.2f, // Velocity 0.5f, // Gravity 17f, // Speed Color.argb(255, 200, 34, 34) ); // Initialize panelHandler. panelHandler = new PanelHandler(10, 150, 20, 5f); highscoreHandler = new HighscoreHandler(); gameState = GameState.Running; } /** * Updates each frame. / protected void update() { // Game mechanics // Delta value. If this is set, then move the screen accordingly. float ballHeightLimit = -1; // If the ball goes below the screen, you lose. if (ball.getBottom() >= screenSize.y) { lose(); } ball.move(); highscoreHandler.addHeight(panelHandler.getPanelSpeed()); // Check if the ball is going too high, if so move the screen with the ball. if (ball.getVelocity() < ball.getSpeed() && ball.getTop() < (screenSize.y / 3) 2) { // Move the ball first to set the new velocity and to get the delta values. // Reset the ball's Y position. ballHeightLimit = (ball.getDeltaY() * (1f / (Math.max((ball.getY() - 150), 100) / 100))); ball.setY(ball.getY() - ballHeightLimit); ball.setDeltaY(ball.getDeltaY() - ballHeightLimit); // If you fly up faster, add the extra height. highscoreHandler.addHeight(-ballHeightLimit); } for (int i = 0; i < panelHandler.getPanelList().length; ++i) { Panel panel = panelHandler.getPanelList()[i]; // Move the panel at normal speed and reset it if it comes below the screen. panelHandler.move(i); // When the ball moves upwards too much, move with the ball. if (ballHeightLimit != -1) { panelHandler.move(i, -ballHeightLimit); } // Don't jump if you recently jumped. if (!ball.getHasJumped()) { // Bounce if the ball intersects with a panel. if (ball.intersects(panel.getX(), panel.getY(), panel.getWidth(), panel.getHeight())) { // Do not bounce if you're above the screen. if (ball.getBottom() > 0) { ball.bounce(); soundController.playBounce(); highscoreHandler.addBounce(); // If the ball is falling. TODO if (ball.getDeltaY() > 0) { ball.setY(ball.getY() - (ball.getBottom() - panel.getTop())); } } } } } highscoreHandler.update(); } /** * Render everything to the screen. * @param canvas Canvas to be used when rendering. / protected final void render(Canvas canvas) { // Reset background canvas.drawColor(Color.GREEN); // Render panels panelHandler.draw(canvas); // Render ball ball.draw(canvas); if (gameState == GameState.Running) { // Render score in-game. highscoreHandler.draw(canvas); } else if (gameState == GameState.GameOver) { highscoreHandler.drawScore(canvas); } } @Override public void run() { while(isRunning) { // Make sure the surface is ready. if (! holder.getSurface().isValid()) { continue; } long started = System.currentTimeMillis(); // Update all objects when running the game. if (gameState == GameState.Running) { update(); } // Render objects to screen. Canvas canvas = holder.lockCanvas(); if (canvas != null) { render(canvas); holder.unlockCanvasAndPost(canvas); } // Make sure update, updates accordingly to the FPS. float deltaTime = (System.currentTimeMillis() - started); int sleepTime = (int) ((FRAME_PERIOD - deltaTime) / 2); if (sleepTime > 0) { try { gameThread.sleep(sleepTime); } catch (InterruptedException e) { } } while (sleepTime < 0) { if (gameState == GameState.Running) { update(); } sleepTime += FRAME_PERIOD; } } } @Override public boolean onTouchEvent(MotionEvent event) { super.onTouchEvent(event); float x = event.getX(); float y = event.getY(); if (gameState == GameState.Running) { switch (event.getAction()) { case MotionEvent.ACTION_MOVE: // Calculate delta x and y. touchMoveDeltaX = event.getX() - touchMoveDeltaX; touchMoveDeltaY = event.getY() - touchMoveDeltaY; // Skip first time you press down. if (!isTouchDown) { isTouchDown = true; } else { // Correct delta here. // Move the ball as you move the finger. ball.setX(ball.getX() + touchMoveDeltaX 1.5f); } touchMoveDeltaX = event.getX(); touchMoveDeltaY = event.getY(); break; case MotionEvent.ACTION_DOWN: touchStartTime = System.currentTimeMillis(); break; case MotionEvent.ACTION_UP: // If you quickly press with your finger, move the ball to that position. if ((System.currentTimeMillis() - touchStartTime) < 125) { ball.setX(event.getX()); } touchStartTime = 0; isTouchDown = false; break; } } else if (gameState == GameState.GameOver) { switch (event.getAction()) { case MotionEvent.ACTION_MOVE: break; case MotionEvent.ACTION_DOWN: gameState = GameState.Running; resetGame(); ball.setX(x); break; case MotionEvent.ACTION_UP: break; } } return true; } public void lose() { gameState = GameState.GameOver; // Show the highscore screen. } public void resetGame() { highscoreHandler.resetAndSave(); ball.bounce(); ball.setX(screenSize.x / 2 - ball.getWidth() / 2); ball.setY((screenSize.y / 3) * 2 - ball.getWidth() / 2); ball.setDeltaX(0); ball.setDeltaY(0); panelHandler.resetAllPanels(); } /** * Start or resume the game. / public void resume() { isRunning = true; gameThread = new Thread(this); gameThread.start(); } /* * Pause the game loop. / public void pause() { isRunning = false; boolean retry = true; while (retry) { try { gameThread.join(); retry = false; } catch (InterruptedException e) { // Try shutting down the thread again. } } } } package jonathan.balljumper; import android.app.Activity; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Point; import android.view.MotionEvent; import android.view.SurfaceHolder; import android.view.SurfaceView; import jonathan.balljumper.classes.Ball; import jonathan.balljumper.classes.HighscoreHandler; import jonathan.balljumper.classes.Panel; import jonathan.balljumper.classes.PanelHandler; import jonathan.balljumper.classes.SoundController; /* * Created by Jonathan on 27/07/2017. / public class GameSurfaceView extends SurfaceView implements Runnable { private boolean isRunning = false; private Thread gameThread; private final SurfaceHolder holder; private final static Point screenSize = new Point(); public static Point getScreenSize() { return screenSize; } private boolean isTouchDown = false; private long touchStartTime; private float touchMoveDeltaX, touchMoveDeltaY; private final Ball ball; private final PanelHandler panelHandler; private final HighscoreHandler highscoreHandler; private final SoundController soundController; private final static int MAX_FPS = 40; private final static int FRAME_PERIOD = 1000 / MAX_FPS; public GameSurfaceView(Context context) { super(context); // Get and set window size. ((Activity)getContext()).getWindowManager() .getDefaultDisplay() .getSize(screenSize); holder = getHolder(); holder.addCallback(new SurfaceHolder.Callback() { @Override public void surfaceCreated(SurfaceHolder holder) { } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { screenSize.x = width; screenSize.y = height; } @Override public void surfaceDestroyed(SurfaceHolder holder) { } }); this.soundController = new SoundController(context); // Initialize ball. int ballRadius = 35; ball = new Ball(screenSize.x / 2 - ballRadius, (screenSize.y / 3) 2 - ballRadius, ballRadius, 0.2f, // Velocity 0.5f, // Gravity 17f, // Speed Color.argb(255, 200, 34, 34) ); // Initialize panelHandler. panelHandler = new PanelHandler(10, 150, 20, 5f); highscoreHandler = new HighscoreHandler(); } /** * Start or resume the game. / public void resume() { isRunning = true; gameThread = new Thread(this); gameThread.start(); } /* * Pause the game loop / public void pause() { isRunning = false; boolean retry = true; while (retry) { try { gameThread.join(); retry = false; } catch (InterruptedException e) { // Try shutting down the thread again. } } } /* * Updates each frame. / protected void update() { // Game mechanics // Delta value. If this is set, then move the screen accordingly. float ballHeightLimit = -1; // If the ball goes below the screen, you lose. if (ball.getBottom() >= screenSize.y) { lose(); } ball.move(); highscoreHandler.addHeight(panelHandler.getPanelSpeed()); // Check if the ball is going too high, if so move the screen with the ball. if (ball.getVelocity() < ball.getSpeed() && ball.getTop() < (screenSize.y / 3) 2) { // Move the ball first to set the new velocity and to get the delta values. // Reset the ball's Y position. ballHeightLimit = (ball.getDeltaY() * (1f / (Math.max((ball.getY() - 150), 100) / 100))); ball.setY(ball.getY() - ballHeightLimit); ball.setDeltaY(ball.getDeltaY() - ballHeightLimit); // Give extra score for speeding up. highscoreHandler.addHeight(-ballHeightLimit); } for (int i = 0; i < panelHandler.getPanelList().length; ++i) { Panel panel = panelHandler.getPanelList()[i]; // Move the panel at normal speed and reset it if it comes below the screen. panelHandler.move(i); // When the ball moves upwards too much, move with the ball. if (ballHeightLimit != -1) { panelHandler.move(i, -ballHeightLimit); } if (!ball.getHasJumped()) { // Bounce if the ball intersects with a panel. if (ball.intersects(panel.getX(), panel.getY(), panel.getWidth(), panel.getHeight())) { // Do not bounce if you're above the screen. if (ball.getBottom() > 0) { soundController.playBounce(); ball.bounce(); highscoreHandler.addBounce(); // If the ball is falling. if (ball.getDeltaY() > 0) { ball.setY(ball.getY() - (ball.getBottom() - panel.getTop())); } } } } } } /** * Render everything to the screen. * @param canvas Canvas to be used when rendering. / protected final void render(Canvas canvas) { // Reset background canvas.drawColor(Color.GREEN); // Render panels panelHandler.draw(canvas); // Render ball ball.draw(canvas); // Render score and highscore. highscoreHandler.draw(canvas); } @Override public void run() { while(isRunning) { // Make sure the surface is ready if (! holder.getSurface().isValid()) { continue; } long started = System.currentTimeMillis(); // Update objects. update(); // Render objects to screen. Canvas canvas = holder.lockCanvas(); if (canvas != null) { render(canvas); holder.unlockCanvasAndPost(canvas); } // Make sure update, updates accordingly to the FPS. float deltaTime = (System.currentTimeMillis() - started); int sleepTime = (int) ((FRAME_PERIOD - deltaTime) / 2); if (sleepTime > 0) { try { gameThread.sleep(sleepTime); } catch (InterruptedException e) { } } while (sleepTime < 0) { update(); sleepTime += FRAME_PERIOD; } } } @Override public boolean onTouchEvent(MotionEvent event) { super.onTouchEvent(event); float x = event.getX(); float y = event.getY(); switch (event.getAction()) { case MotionEvent.ACTION_MOVE: // Calculate delta x and y. touchMoveDeltaX = event.getX() - touchMoveDeltaX; touchMoveDeltaY = event.getY() - touchMoveDeltaY; // Skip first time you press down. if (!isTouchDown) { isTouchDown = true; } else { // Correct delta here. // Move the ball as you move the finger. ball.setX(ball.getX() + touchMoveDeltaX 1.5f); } touchMoveDeltaX = event.getX(); touchMoveDeltaY = event.getY(); break; case MotionEvent.ACTION_DOWN: touchStartTime = System.currentTimeMillis(); break; case MotionEvent.ACTION_UP: // If you quickly press with your finger, move the ball to that position. if ((System.currentTimeMillis() - touchStartTime) < 125) { ball.setX(event.getX()); } touchStartTime = 0; isTouchDown = false; break; } return true; } public void lose() { isRunning = false; try { gameThread.sleep(1000); } catch (InterruptedException e) { } highscoreHandler.resetAndSave(); ball.bounce(); ball.setX(screenSize.x / 2 - ball.getWidth() / 2); ball.setY((screenSize.y / 3) * 2 - ball.getWidth() / 2); ball.setDeltaX(0); ball.setDeltaY(0); panelHandler.resetAllPanels(); isRunning = true; } }

Ignore Space Show notes View

app/src/main/java/jonathan/balljumper/GameSurfaceView.java

package jonathan.balljumper;

import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Point;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;

import jonathan.balljumper.classes.Ball;
import jonathan.balljumper.classes.HighscoreHandler;
import jonathan.balljumper.classes.Panel;
import jonathan.balljumper.classes.PanelHandler;
import jonathan.balljumper.classes.SoundController;
import jonathan.balljumper.enums.GameState;

/**
 * Created by Jonathan on 27/07/2017.
 */

public class GameSurfaceView extends SurfaceView implements Runnable {
    private boolean isRunning = false;
    private Thread gameThread;
    private final SurfaceHolder holder;
    private GameState gameState;

private final static Point screenSize = new Point();
    public static Point getScreenSize() { return screenSize; }

private boolean isTouchDown = false;
    private long touchStartTime;
    private float touchMoveDeltaX, touchMoveDeltaY;

private final Ball ball;
    private final PanelHandler panelHandler;
    private final HighscoreHandler highscoreHandler;
    private final SoundController soundController;

private final static int MAX_FPS = 40;
    private final static int FRAME_PERIOD = 1000 / MAX_FPS;

public GameSurfaceView(Context context) {
        super(context);

// Get and set window size.
        ((Activity)getContext()).getWindowManager()
                                .getDefaultDisplay()
                                .getSize(screenSize);

holder = getHolder();
        holder.addCallback(new SurfaceHolder.Callback() {
            @Override
            public void surfaceCreated(SurfaceHolder holder) {
            }

@Override
            public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
                screenSize.x = width;
                screenSize.y = height;
            }

@Override
            public void surfaceDestroyed(SurfaceHolder holder) {
            }
        });

this.soundController = new SoundController(context);

// Initialize ball.
        int ballRadius = 35;

ball = new Ball(screenSize.x / 2 - ballRadius,
                        (screenSize.y / 3) * 2 - ballRadius,
                        ballRadius,
                        0.2f, // Velocity
                        0.5f, // Gravity
                        17f, // Speed
                        Color.argb(255, 200, 34, 34)
        );

// Initialize panelHandler.
        panelHandler = new PanelHandler(10, 150, 20, 5f);

highscoreHandler = new HighscoreHandler();

gameState = GameState.Running;
    }

/**
     * Updates each frame.
     */
    protected void update() {
        // Game mechanics

// Delta value. If this is set, then move the screen accordingly.
        float ballHeightLimit = -1;

// If the ball goes below the screen, you lose.
        if (ball.getBottom() >= screenSize.y) {
            lose();
        }

ball.move();
        highscoreHandler.addHeight(panelHandler.getPanelSpeed());

// Check if the ball is going too high, if so move the screen with the ball.
        if (ball.getVelocity() < ball.getSpeed() && ball.getTop() < (screenSize.y / 3) * 2) {
            // Move the ball first to set the new velocity and to get the delta values.
            // Reset the ball's Y position.
            ballHeightLimit = (ball.getDeltaY() * (1f / (Math.max((ball.getY() - 150), 100) / 100)));
            ball.setY(ball.getY() - ballHeightLimit);
            ball.setDeltaY(ball.getDeltaY() - ballHeightLimit);

// If you fly up faster, add the extra height.
            highscoreHandler.addHeight(-ballHeightLimit);
        }

for (int i = 0; i < panelHandler.getPanelList().length; ++i) {
            Panel panel = panelHandler.getPanelList()[i];

// Move the panel at normal speed and reset it if it comes below the screen.
            panelHandler.move(i);

// When the ball moves upwards too much, move with the ball.
            if (ballHeightLimit != -1) {
                panelHandler.move(i, -ballHeightLimit);
            }

// Don't jump if you recently jumped.
            if (!ball.getHasJumped()) {
                // Bounce if the ball intersects with a panel.
                if (ball.intersects(panel.getX(), panel.getY(), panel.getWidth(), panel.getHeight())) {
                    // Do not bounce if you're above the screen.
                    if (ball.getBottom() > 0) {
                        ball.bounce();
                        soundController.playBounce();
                        highscoreHandler.addBounce();

// If the ball is falling. TODO
                        if (ball.getDeltaY() > 0) {
                            ball.setY(ball.getY() - (ball.getBottom() - panel.getTop()));
                        }
                    }
                }
            }
        }

highscoreHandler.update();
    }

/**
     * Render everything to the screen.
     * @param canvas Canvas to be used when rendering.
     */
    protected final void render(Canvas canvas) {
        // Reset background
        canvas.drawColor(Color.GREEN);

// Render panels
        panelHandler.draw(canvas);

// Render ball
        ball.draw(canvas);

if (gameState == GameState.Running) {
            // Render score in-game.
            highscoreHandler.draw(canvas);
        } else if (gameState == GameState.GameOver) {
            highscoreHandler.drawScore(canvas);
        }

}

@Override
    public void run() {
        while(isRunning) {
            // Make sure the surface is ready.
            if (! holder.getSurface().isValid()) {
                continue;
            }
            long started = System.currentTimeMillis();

// Update all objects when running the game.
            if (gameState == GameState.Running) {
                update();
            }

// Render objects to screen.
            Canvas canvas = holder.lockCanvas();
            if (canvas != null) {
                render(canvas);
                holder.unlockCanvasAndPost(canvas);
            }

// Make sure update, updates accordingly to the FPS.
            float deltaTime = (System.currentTimeMillis() - started);
            int sleepTime = (int) ((FRAME_PERIOD - deltaTime) / 2);
            if (sleepTime > 0) {
                try {
                    gameThread.sleep(sleepTime);
                }
                catch (InterruptedException e) {
                }
            }
            while (sleepTime < 0) {
                if (gameState == GameState.Running) {
                    update();
                }
                sleepTime += FRAME_PERIOD;
            }
        }
    }

@Override
    public boolean onTouchEvent(MotionEvent event) {
        super.onTouchEvent(event);

float x = event.getX();
        float y = event.getY();

if (gameState == GameState.Running) {
            switch (event.getAction()) {
                case MotionEvent.ACTION_MOVE:

// Calculate delta x and y.
                    touchMoveDeltaX = event.getX() - touchMoveDeltaX;
                    touchMoveDeltaY = event.getY() - touchMoveDeltaY;

// Skip first time you press down.
                    if (!isTouchDown) {
                        isTouchDown = true;
                    } else {
                        // Correct delta here.

// Move the ball as you move the finger.
                        ball.setX(ball.getX() + touchMoveDeltaX * 1.5f);
                    }

touchMoveDeltaX = event.getX();
                    touchMoveDeltaY = event.getY();

break;
                case MotionEvent.ACTION_DOWN:
                    touchStartTime = System.currentTimeMillis();
                    break;

case MotionEvent.ACTION_UP:
                    // If you quickly press with your finger, move the ball to that position.
                    if ((System.currentTimeMillis() - touchStartTime) < 125) {
                        ball.setX(event.getX());
                    }
                    touchStartTime = 0;
                    isTouchDown = false;
                    break;
            }
        } else if (gameState == GameState.GameOver) {
            switch (event.getAction()) {
                case MotionEvent.ACTION_MOVE:
                    break;
                case MotionEvent.ACTION_DOWN:
                    gameState = GameState.Running;
                    resetGame();
                    ball.setX(x);
                    break;
                case MotionEvent.ACTION_UP:
                    break;
            }
        }

return true;
    }

public void lose() {
        gameState = GameState.GameOver; // Show the highscore screen.
    }

public void resetGame() {
        highscoreHandler.resetAndSave();

ball.bounce();
        ball.setX(screenSize.x / 2 - ball.getWidth() / 2);
        ball.setY((screenSize.y / 3) * 2 - ball.getWidth() / 2);
        ball.setDeltaX(0);
        ball.setDeltaY(0);

panelHandler.resetAllPanels();
    }

/**
     * Start or resume the game.
     */
    public void resume() {
        isRunning = true;
        gameThread = new Thread(this);
        gameThread.start();
    }

/**
     * Pause the game loop.
     */
    public void pause() {
        isRunning = false;
        boolean retry = true;
        while (retry) {
            try {
                gameThread.join();
                retry = false;
            } catch (InterruptedException e) {
                // Try shutting down the thread again.
            }
        }
    }
}

package jonathan.balljumper;

/**
 * Created by Jonathan on 27/07/2017.
 */

public class GameSurfaceView extends SurfaceView implements Runnable {
    private boolean isRunning = false;
    private Thread gameThread;
    private final SurfaceHolder holder;