Ball King

**Ball King — Pixel Hoops, No Mercy** Ball King is a retro pixel-art basketball shooter built for quick sessions and score-chasing. Grab the ball on the left, slingshot it toward the hoop on the right, and chain hits for a combo bonus. Miss and it costs a life — three strikes and you're out. Gameplay - Side-view pixel court: ball starts bottom-left, hoop sits top-right - Long press on the ball to aim, drag down-left to charge (slingshot), release to shoot - Ball flies along a real parabolic arc with gravity - Must drop straight through the rim from above to score (clean swish only) - Backboard and rim collisions bounce the ball realistically — bricks and rim-outs count as misses - Missing a shot costs one life and resets the ball to the start point - Three lives total; zero lives ends the game Scoring & Combos - Each made basket: base 1 point × combo multiplier - Combo multiplier grows with consecutive hits, capping at 5x - Chain milestones: ON FIRE (8), UNSTOPPABLE (16), LEGEND STUFF (32) - A missed shot resets the combo to zero - Watch a rewarded ad to activate 2x points for the rest of the run Pages & Navigation - MainActivity (home: best score, play button, navigation to all sections) - GameActivity (core gameplay with live HUD: score, combo, lives, pause, 2x button) - HowToPlayActivity (step-by-step rules) - HistoryActivity (recent game records ranked by score) - StatsActivity (best score, games played, total points, hit rate, best combo) - SettingsActivity (sound, vibration, reduce-motion toggles, privacy policy) - Secondary pages return to home; home uses double-back-to-exit UX Features - Pure multi-Activity navigation with a shared sub-page base (top bar + back-to-home) - Custom pixel dialog with typewriter text reveal and playful copy - Miss toasts with tongue-in-cheek lines ("Air ball. The crowd goes silent.") - Pause dialog with resume / restart / quit options (back button during game) - Game over dialog with score, best, and revive / restart / home buttons - Edge-to-edge adaptation for status bar and bottom system area - Portrait-locked game screen to prevent SurfaceView rebuilds Visual Design - Pixel Classic (pixel_classic) theme: 8-bit palette, all-zero corner radius, hard pixel shadows - Monospace fonts with ALL CAPS, no anti-aliasing for crisp pixel edges - Soul colors: CRT Orange (#FF6B35) basketball + Phosphor Yellow (#FFBE0B) aim line & score - Custom SurfaceView rendering at 60fps with a dedicated render thread - Aim trajectory shown as glowing yellow pixel dots, updated in real time while dragging - Particle burst on score (yellow/green) and miss (red) Ad Integration - TradPlus SDK integrated through an independent module(12-network mediation) - Rewarded ad: revive one life on game over(once per session) - Rewarded ad: activate 2x score mid-run(once per session) - Interstitial ad: shown before restart on game over(once per session) - Frequency-capped per session to stay Google Play policy-friendly - Ad unit IDs injected via manifest meta-data; graceful fallback when ads not ready Technical Notes - Kotlin - XML Layout + custom Views(PixelButton / PixelTextView / PixelDialog) - MVVM architecture(ViewModel + StateFlow/SharedFlow) - Multi-Activity structure - SurfaceView self-drawn rendering with GameRenderer(no anti-alias, integer-pixel alignment) - Coroutine-based fixed-step game loop(~60fps) - Pure-function physics & scoring(AimTrajectory, Scoring)for unit testing - SharedPreferences for statistics and history(JSON-serialized) - Java 17 - minSdk 26 / targetSdk 36 / compileSdk 36 - Android 16KB memory page alignment (useLegacyPackaging = false) - Pixel Classic theme with CRT orange+phosphor yellow color scheme - Lint abortOnError disabled to avoid blocking on ad SDK dependencies Accessibility - WCAG AA contrast (on_background vs background =15:1) - Minimum 12sp text, minimum 48×48dp touch targets - Reduce-motion toggle to flatten frame animations - Vibration toggle for shot / score / miss feedback