cubei / flappycow

Android game in "Flappy Bird" Style

Flappy Cow

Flappy Cow is an Android game in "Flappy Bird" Style. Since Nguyen Ha Dong, the developer of "Flappy Bird", anounced the end of his loved but also hated game I uploaded this Open Source game, so you have an alternative to fulfill your addiction.

Initially called Flappy Cow, it has now(v.1.83) been renamed to FlutterCow because of Googles policy on the word Flappy in app names

Make sure to check out Space Cowboy too!

Screenshot

Google Play Store

How-to play

• Tap screen to increase altitude
• Tap ad to increase money

How-to use the code

• Read the instruction from INSTRUCTIONS file

Permissions

• INTERNET, for ads
• ACCESS_NETWORK_STATE, for avoiding sending ad requests if there's no internet connection

License

• MIT, see LICENSE file
• Nyan Cat was drawn by Christopher Torres and もももも remixed the music by daniwell

Version

• 3.0

Contact

quchen

• homepage: 0quchen.de
• email: [email protected]

flappycow's Issues

Bug: app crashed when i click on Achievements

Describe the bug.

App crashed when I check the Achievements after I played and loss

Steps to reproduce.

• Launch the app.

• Sign in

• Play the game and loss

• then check the Achievements immediately.

Expected Behaviour

I expect that I should be able to check the Achievements without any issue

Screen recording

https://youtu.be/i8yNSsyOjpY

Devices and Versions)

• Device: [itel]

• Version [6.1]

• App version [3.3.0]

Log

05-06 09:00:14.820 30607 30607 E AndroidRuntime: Process: com.quchen.flappycow, PID: 30607
05-06 09:00:14.820 30607 30607 E AndroidRuntime: java.lang.IllegalStateException: GoogleApiClient must be connected.
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at com.google.android.gms.common.internal.Preconditions.checkState(Unknown Source)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at cappycow.StartscreenView.onTouchEvent(StartscreenView.java:203)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.View.dispatchTouchEvent(View.java:9307)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2561)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2199)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2561)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2199)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2561)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2199)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at com.android.internal.policy.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2419)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1744)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.app.Activity.dispatchTouchEvent(Activity.java:2776)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at com.android.internal.policy.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2380)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.View.dispatchPointerEvent(View.java:9533)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4230)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4096)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3695)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3661)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3787)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3669)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3844)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3695)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3661)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3669)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5922)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5896)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5857)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6025)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.os.MessageQueue.nativePollOnce(Native Method)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.os.MessageQueue.next(MessageQueue.java:323)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.os.Looper.loop(Looper.java:135)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at android.app.ActivityThread.main(ActivityThread.java:5452)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at java.lang.reflect.Method.invoke(Native Method)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:781)
05-06 09:00:14.820 30607 30607 E AndroidRuntime: 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:671)```

Bug: app crashed when i click on High score

Describe the bug.

App crashed when I check the Highscore after I played and loss

Steps to reproduce.

• Launch the app.

• Sign in

• Play the game and loss

• then check the Highscore immediately.

Expected Behaviour

I expect that I should be able to check the Highscore without any issue

Screen recording

https://youtu.be/L9zY94vL4Ls

Devices and Versions)

• Device: [itel]

• Version [6.1]

• App version [3.3.0]

I will add the log soon.

Hey Master ...!

1).Could you update the game to play in Horizontal View ?
2).Could you decrease a foreground (fg) speed a bit slower ?
3).Could you add a life coin to the game when the cow eats ?
4).Could you animate both background and foreground images in order to look amazing when playing ?

Accomblishment Saves

Instead of shared preferences a SQLite DB should be used.

Alpha8 bitmap can course problems

I was informed that the bitmaps loaded in alpha8 encoding could course a problem. Switching to argb_8888 solves this.

In Util.java I have functions to load bitmaps in alpha8 decoding. I saved the PNGs in alpha8, so there won't be any quality loss when loaded, but it will need significant less memory, so this is the reason I used it.

Alpha8 = 8 Bit per pixel
argb = 4x8 Bit = 32 Bit per pixel

Use game loop

Instead of updating the game with a constant timer tick, a while loop should be used with the option of frame skipping.

get constant fps on all devices

At the moment the game threads does all the work and is then put to sleep for a few milliseconds. The time needed for the "work" depends on the CPU power of the device. So a low performance device has a lower over all game speed than a high-end-device.

Instead a timer should be used, so the work runs at a constant frequency.

Could not find com.android.tools.build:gradle:3.0.1.

Getting this error

Could not find com.android.tools.build:gradle:3.0.1.
Searched in the following locations:
    https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.1/gradle-3.0.1.pom
    https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.1/gradle-3.0.1.jar
Required by:
    project :BaseGameUtils
Open File

how to make source code run?

hi cubei,

first I want to said thank you for release it as open source..
then, do you have another instructions to make the source code run?

I got android library projects cannot be run..I've remove (comment) google sign in button from source code

exception

When you click on the play was going to play take-up
Upper-click a few times and took
's Exception (Force close)

Add to F-Droid

Please add this game to F-Droid. A thread has been created for it at https://f-droid.org/forums/topic/flappy-cow/

Build error !!

Getting this error while building this project in android studio 2.1.3 !!

Drawing Bitmaps in the correct size

At the moment bitmaps are scaled to the correct size and drawn in that size.

Instead the bitmaps should just be drawn in the correct size and not scaled up, because of the memory usage.

Reset on orientation change

When the orientation changes (e.g. tablet lockscreen -> landscape) onCreate method is recalled. This resets the game.

error google_play

Why not complete this game? Packages Where do I download
I am using intellij

Versions discrepancy in MD and .apk

Hi @cubei,

The MD states the latest version as 3.0, while the current .apk is already at 3.1.1 - this might confuse and hinder new contributors.

Filled with errors

Importing this into Eclipse it is riddled with errors