🌈 Rainbow Rush

Develop

Open project.godot with Godot.

To see your changes, just click play in the top left corner.

See tween cheat sheet.

Resources for shaders

• The book of shaders
• Godot shader snippets
• Optimize your shaders

Play on mobile

To be written...

How to export?

Make sure to copy the export_presets.cfg in mobile-game below before opening Godot.

iOS

1. Open the project in your Godot editor
2. Select Project > Export...
3. Select iOS Production in Presets
4. Make sure to increment the version since the last upload (you version needs to be higher than the one in the App Store, not in Test Flight) 1. Use 1.2.1 -> 1.2.2 (SimVer)
5. Click Export Project..., and export it without Debug
6. The archive build will fail with error: "scaling-broccoli" requires a provisioning profile. Select a provisioning profile in the Signing & Capabilities editor., but the Xcode project will be created you can move forward
7. Open the Xcode project (scaling-broccoli.xcodeproj)
8. Go to Signing & Capabilities
9. Check Automatically manage signing
10. Select your team
11. Click on Product > Archive, it will build and open the Archives window
12. Select your latest archive and click on Distribute App, a pop-up menu will open
13. Select App Store Connect
14. Select Upload
15. Check Upload your app's symbols and Manage Version and Build Number
16. Select Automatically manage signing
17. Click on Upload, this will take a while

How to renew your developer certificate?

You will need your developer certificate to export your app to the App Store.

What icons will you need?

• 76x76
• 120x120
• 152x152
• 1024x1024

What dimensions do you need for screenshots?

Device	Dimensions	Folder	Debug Window Dimensions	Capture Dimensions
6.7" Display	1290 x 2796	screen-67	665 x 1418	323 x 699
6.5" Display	1284 x 2778	screen-65	662 x 1409	321 x 695
5.5" Display	1242 x 2208	screen-55	641 x 1124	311 x 552
12.9" Display	2048 x 2732	screen-129	1044 x 1386	512 x 683

What dimensions do you need for app previews (recordings)?

Device	Dimensions	Folder	Debug Window Dimensions	Capture Dimensions
6.7" Display and 6.5" Display	886 x 1920	preview-67-65	906 x 1940	443 x 960
5.5" Display	1080 x 1920	preview-55	1130 x 1970	540 x 960
12.9" Display	1200 x 1600	preview-129	1250 x 1650	600 x 800

How to deploy to the Apple Store?

1. Go the App Store Connect and select your game
2. Get latest TestFlight version number
3. Go to TestFlight tab
4. Note the latest version number
5. Go to App Store tab
6. Click on the blue + sign next to iOS App on the upper-left
7. Enter the latest version number and hit Create
8. Edit the field according to ./STORE_PRESENCE.md
9. You'll have to wait one hour before your app preview are done processing, you can close the browser meanwhile
10. Type the Release Notes in What's new in This Version
11. Select Add build and select your latest build
12. Hit Save ang go to App information under General
13. Edit the field according to ./STORE_PRESENCE.md

Android

1. Follow Godot documentation Exporting for Android
2. Open the project in your Godot editor
3. Go to Project > Install Android Build Template... and select Install
4. Select Project > Export...
5. Select Android in Presets
6. Fill in Release, Release User, and Release Password
7. Increment the code version
8. Make sure to increment the version since the last upload (you version needs to be higher than the one in the Google Play Store) (SimVer)
9. Click Export Project..., and export it without Debug
10. Go to your project page in Google Play Console
11. Select Internal Testing
12. Upload your aab file
13. Enter the release details and click Next
14. If you add advertisement, see the notice below, you need to add something to your manifest and declare it
15. Hit Save and publish

What icons will you need?

• 192x192
• 432x432: foreground image, you will only use the inner 264px circle
• 432x432: background image

What if I lost your upload key?

If you manage your key with Google Signing, they get you covered. Follow their Create an upload key and update keystores guide.

Note on advertising$

Apps that use advertising ID and target Android 13 or later must declare the com.google.android.gms.permission.AD_ID permission in their app manifest. If you don't include this permission, your advertising identifier will be zeroed out, any attempts to access the identifier will receive a string of zeros instead of the identifier. Learn more

If you say that your app uses advertising ID, we will block releases that don't include the com.google.android.gms.permission.AD_ID permission in the manifest file when targeting Android 13. When we block these releases, we will remind you to add the permission. If your release doesn't need advertising ID, you'll be able to skip the error and release. You can also update the declaration to turn off advertising ID release errors.

The option selected is No.

What dimensions do you need for app previews?

Device	Dimensions	Debug Dimensions	Debug Factors
Any	1242x2208	414x736	3
App icon	512x512	N/A	N/A
Feature graphic	1024x500	N/A	N/A

How to deploy to the Google Play Store?

1. Go to the Google Play Console and select your app
2. Edit your app details
3. Select Main store listing under Store presence on the left
4. Edit the field according to ./STORE_PRESENCE.md
5. Hit Save and don't send the change to review
6. Create a new release
7. Select Production under Release on the left
8. Click Create new release
9. Click Add from library and select the latest app bundle
10. Enter the release notes from ./STORE_PRESENCE.md
11. Hit Save
12. Review the release and click on Save
13. Select Go to oveview in the pop-up window
14. Click on Send X changes for review and confirm

How to generetate app previews?

1. Install dependencies
2. Install Loopback
3. Follow underboading step (this will require to restart your computer)
4. Open Loopback and click the New Virtual Device (it should create a Loopback Audio device)
5. Go to your computer Settings > Audio and select Loopback Audio
6. Turn the sound at maximum (it will start emitting sounds in your virtual device, you won't hear anything)
7. Open your project in Godot
8. Go to Project > Settings and select Window
9. Update the Debug dimensions
10. Add at least 20px in each dimensions to not see window frame while recording
11. Start the game and do the screenshots and screen recordings you need
12. Trim each video to 20s
13. Scale up images and videos to their correct dimensions: ffmpeg -i input -vf scale="iw*2:ih*2" output (scales times two)
14. If you need to scale small pixel art assets use: ffmpeg -i input -vf scale="iw*2:ih*2" -sws_flags neighbor output
15. You can specify directly the dimensions to avoid artefacts: ffmpeg -i input -vf scale="1200:1600" output
16. Convert videos to mp4: ffmpeg -i input.mov -qscale 0 output.mp4
17. Extract frames from the videos: ffmpeg -ss 01:23:45 -i input -frames:v 1 -q:v 2 output.png

What scenes do you want to preview?

1. Set the dimensions for screenshots
2. Take a screenshot of the main menu
3. Start recording your screen with correct dimensions (audio doesn't matter)
4. Play a game with at least a combo higher than 25 and take screenshots of the lost menu
5. Stop recording and extract in-game frame from your recording 1. Take one frame with a combo higher than 20 2. Take one random frame in game 3. Take one frame with the introduction text 4. Take another random frame in game
6. Set the dimensions for app preview
7. Change your audio output to LoopBack Audio
8. Change your recording audio channel to LoopBack Audio
9. Turn on the Music and set volume at maximum
10. Record your screen with correct dimensions
11. Start a game, wait at the beginning to see the introduction message
12. Do at least a combo higher than 50
13. Stop recording your screen when you lose.
14. Record the game while you're in a combo higher than 25
15. Take a screenshot of the lose menu
16. Record the start of the game (wait for the introduction message to appear)
17. Take four screenshots from the two recording above

Note for Apple Store

You will need to use iMovie to create the app preview. They won't upload if you don't export them with iMovie. If you use iMovie, no need to rescale your .mov recording, iMovie will set the correct dimensions automatically. For 12.9" Display you'll need to rescale the video to 1200 x 1600 before importing it in iMovie. If you don't, iMovie will rescale it to 900 x 1200.

Note for Google Play Stores

You won't be able to upload videos directly. You must create a Youtube video and use the link.

Add a video by entering a YouTube URL. This video must be public or unlisted, ads must be turned off, it must not be age restricted, and it should be landscape.

Need to attribute

Paste these link on the website where your app is available for download or in the description section of the platform or marketplace you’re using.

• Thunder icons created by Smashicons - Flaticon

The game

Rainbow Rush is a mobile arcade-like video game where you have to touch a square when its colour matches the colour of the background. The square will keep its colour until you touch it when it has the same colour as the background. The background keeps changing colour, and you must be fast and reactive!

You can take two directions to decide the rules.

• Time is the main element
• Hit is the main element In the rules below, the main element is hit (when you tap the square when its colour matches the colour of the background). Hit is the dynamics. You hit when you play, so it keeps the central position for all the rules.

How do I earn points?

Points are a common language between players to compare their performance and challenge each other. Points in arcade games be the best translation of the player's level possible.

Option 1: The longer you survive, the more points you'll have

Option 2: You get points when you hit the correct colour

Each time you hit, you earn ten points times your current combo strike.

Variables

• score_factor: the number of times you multiple your combo strike (ten above)

What is a combo?

Combos are essential in arcade games as they incentivise you to continue the perfect strike and improve your skills.

Option 1: You don't miss between two hits

After your second hit without a miss, you will start a combo. Then, you'll continue the combo until you don't miss it. You miss if:

• you tap when the square and the background don't have the same colour,
• you don't tape when the square and the background have the same colour. You will always have the chance to hit within the next five changement of colors. Five being the number of colors.

How do I lose?

You lose when you miss. You miss if you tap when the square and the background differ from the same colour.

How do I play longer?

You can't play longer.

How does the difficulty increase?

When you reach a given combo, you will increase your level. The higher your level, the more likely you are to have match new to each other. You reach level 1 at combo 10 and level 2 and combo 20. You can't go higher than level 2.

Variables

• background_delta: the time the background keeps its colour when it doesn't match the colour of the square
• background_match_delta: the time the background keeps its colour when it matches the colour of the square
• max_swaps: array of maximum number of background color swaps before if match the color of the character at level n