RUMBLE STARS

Cinevva's analyzer read this game's design doc and its source, then wrote the brief below. "Make your own" hands it to the game creator as your opening message, so you start from a real spec rather than a one-line idea.

Create a playable browser game titled “RUMBLE STARS”, presented as a colorful top-down 3D arena brawler with an orthographic camera looking straight down at a circular green battlefield. Use a Three.js-like 3D presentation with soft shadows, simple low-poly geometry, bright arcade colors, and a dark purple background/fog beyond the arena. The arena is a large flat mint/grass-green cylinder with a thin glowing gold circular rim. Place six chunky purple rectangular cover blocks around the field in roughly symmetric positions: two toward the upper left/right, two toward the lower left/right, and blocks near the top and bottom center. The blocks are visual cover but do not need complex collision behavior.

The player is a small stylized tank/hero near the bottom of the arena. Build it from simple shapes: a yellow-gold short cylindrical body, a pink/red rectangular turret or barrel on top pointing toward the top of the screen, and a bright white/gold ring around its base. Add three purple-blue capsule-like enemy bots distributed around the arena. Enemies continuously move toward the player when they are more than about 1.8 world units away, but they do not visibly attack. Scatter seven glowing cyan diamond/octahedron gems around the central play area. Gems slowly rotate, and when the player comes within about 1.1 units, collect them, hide them briefly, increment the held-gem count and score by 1, then respawn each gem at a new random position after roughly 0.9 seconds.

The main match is “GEM GRAB” and lasts 3 minutes. Display a large translucent dark-purple rounded match panel near the top center reading “GEM GRAB · 3:00” initially, with the French instruction “WASD / flèches pour bouger · clic ou ESPACE pour tirer”. Count the timer down in minutes and seconds; when it reaches zero, stop gameplay and show “MATCH TERMINÉ · [score] trophées”. The player moves with WASD or arrow keys, at a speed of about 5 units per second, constrained to the arena area, and rotates to face the movement direction. Also support a large on-screen virtual joystick on mobile at bottom left, with a translucent circular style and a star/✦ icon.

Allow shooting with Space, mouse/pointer click, and a large bottom-right circular fire button marked with a white dot. Shots are small glowing yellow-orange projectiles launched from the player toward the top of the screen at about 12 units per second, with a short 0.28 second cooldown. Remove shots when they leave the arena. If a shot comes within roughly 0.8 units of an enemy, remove the projectile, award 2 trophies/score, and respawn that enemy at a random arena position. Add a large purple “SUPER” button immediately left of the fire button. If the player has at least 3 held gems, pressing it consumes 3 gems and knocks each enemy outward by moving it 25% farther away from the player; update the HUD afterward. The held gem count should be reflected in the displayed gem currency as 120 plus 5 per held gem, while the trophy count starts at 0 and tracks the score.

Build the fixed HUD over the game. At the top, show the bold two-line brand “RUMBLE STARS” at left with a dark shadow, followed by three dark translucent rounded resource pills: cyan diamond icon and “120” initially, gold coin icon and “850”, and trophy icon and “0”. Keep the visual language consistent: dark navy/purple translucent panels, pale borders, rounded corners, drop shadows, bold white text, yellow highlighted numbers, and saturated cyan, pink, purple, and gold controls. The screenshot-like composition should feel like a mobile arena game, with the HUD and controls layered above the full-screen arena.

Add a bottom-left button labeled “🦸 HÉROS” and a bottom-right pink button labeled “🔐 ADMIN”. The Heroes button opens a dark rounded panel near the upper-left containing the title “Choisir un héros”, French explanatory text that one hero is unlocked initially and others open with coins or gems, and a two-column grid of hero cards. Include exactly these heroes and roles: Blaze—Destructeur (🔥), Médik—Soigneur (💚), Volt—Tireur (⚡), Rocco—Tank (🪨), Luna—Sniper (🌙), Dash—Assassin (💨), Bombe—Lanceur (💣), Glace—Contrôleur (❄️). Blaze is initially unlocked and selected; the other cards appear dimmed with lock/prices. Cards can be selected, and selecting an unlocked hero changes the player body color to that hero’s color. Include a “Fermer” button. Preserve the simple prototype behavior where clicking a locked hero unlocks it and deducts 500 from the coin display, then rerenders the cards.

The Admin button opens a dark rounded panel near the upper-right titled “Panneau admin”. Show French text explaining it is a local prototype and that browser WebAuthn keeps the fingerprint on the device. Include a yellow button “Vérifier mon empreinte / appareil”, a “Verrouillé” status, and a close button. If WebAuthn/PublicKeyCredential is available, change the status to “Biométrie disponible sur cet appareil — prototype déverrouillé” and reveal demo statistic cards: “24 joueurs connectés”, “Tank le plus joué”, “12 480 CA du jour (démo)”, and “+2x événement actif”, followed by the note that live settings, Firebase, Photon, and push notifications would need a server connection. Do not add multiplayer, inventory systems, enemy attacks, health bars, or other mechanics not described here; this is a local prototype centered on collecting gems, shooting bots, and the 3-minute score chase.”