Warning: This application is just designed for fun!

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Countdown

A death countdown app for entertainment purposes only. Built with Jetpack Compose. Displays a countdown timer showing years, days, hours, minutes, and seconds with monospace font.

Features

• Death countdown timer with 5 rows (YRS, DAY, HRS, MIN, SEC)
• Ultra bold countdown numbers in monospace font for better visibility
• Smart startup: automatically detects existing data and skips welcome screen
• First-time welcome screen with user agreement
• Username and birth date setup
• Black background with dark red/white countdown numbers (white starts below first zero value)
• Hidden developer mode (tap version 3 times + settings title 5 times)
• Search Users feature in developer mode:
  • Infinite scroll lazy loading
  • 100+ common English names
  • Real-time user generation
  • Search functionality with location button to find your username
  • Add random users

Important Disclaimer

This app is JUST FOR FUN and is purely for entertainment purposes. The countdown displayed is not based on any real data and should not be taken seriously.

User Agreement

By using this application, you agree to the following terms:

1. This application is for entertainment only.
2. The countdown displayed is not based on any real data.
3. If you change your fate due to this countdown, there may be force majeure factors.
4. This app does not upload any information to the internet, including crash reports.

Installation

Requirements

• Android 8.1 (API 27) or higher
• Target SDK 36
• JDK 17
• Android SDK with platforms;android-36 and build-tools;36.1.0

Build from source

cd android
./gradlew assembleDebug

Developer Mode

To enable developer mode:

1. Go to Settings (tap ■■■ ■■■-■■■■ ■ times)
2. Tap on ■■■■■■■ ■ times
3. Tap on title ■ times

In developer mode, you can access "Search Users" feature where you can:

• Browse generated users with infinite scroll
• Search for specific usernames
• Click the location button to quickly find your username in the list
• Add random users
• Edit countdown timers
• Sync user data to your device

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Development Rules

Countdown Calculation Algorithm

Input: username + birthDate + deviceId
     ↓
1. Combine: "username:birthDate:deviceId"
     ↓
2. Hash: 32-bit DJB2 hash
     ↓
3. Age: hash % 40 + 60 → 60-99 years
     ↓
4. Time (from high bits):
   - milliseconds: hash % 1000 → 0-999ms
   - totalSeconds: (hash >> 10) % 86400 → 0-86399 seconds (24h)
   - hours: totalSeconds / 3600 → 0-23
   - minutes: (totalSeconds % 3600) / 60 → 0-59
   - seconds: totalSeconds % 60 → 0-59
     ↓
5. Death Date = birthDate + age years + hours:minutes:seconds.milliseconds

White Rule (Color Display)

Starting from the first zero-value unit (where all units above are also ≤ 0):

• That unit and all units above it: dark red (#CC0000)
• All units strictly below it: white
• If no unit is zero, all display dark red

Negative Handling

• If death date < current time, display all zeros instead of negative numbers

Developer Mode

• Version tap count: 3
• Title tap count: 5
• Developer name: "Death God"

Key Constants

• Package: com.death.countdown
• Min age: 60
• Max age: 100
• Search page size: 30 users

License

This project is licensed under the GNU General Public License v3.0 - see the LICENSE file for details.

Developer

• GitHub: ChidcGithub