Garage Builder

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.

Recreate a browser-based 3D customization and driving game titled “Garage Builder.” Use Three.js (or an equivalent 3D engine) with a dark navy/black environment, soft atmospheric fog, shadows, and a clean futuristic garage UI made of translucent blurred dark panels with rounded corners, thin pale borders, bright blue accent gradients, and white/light-blue typography.

Scene and camera: Create a large dark circular floor with a subtle square grid. In the center, place a raised dark blue-gray cylindrical display platform with a glowing cyan ring around its top edge. In build mode, the platform and the car slowly rotate so the player can inspect the vehicle from every side. Use an orbit camera in build mode: mouse/touch drag rotates around the vehicle, with zoom limits and no panning. Keep the car centered on the platform, slightly hovering/bobbing, with realistic soft shadows. Around the outer driving area, create a circular practice pad marked by approximately 24 short pale rectangular track dashes and 12 orange traffic cones with small white bands. The world should remain an open dark blue grid/fog environment.

Car model: Build a simple stylized low-poly vehicle from boxes, cylinders, and basic meshes. The car has a configurable painted rectangular body, a raised cabin with a blue-tinted transparent windshield, a dark hood/trim piece, dark front and rear bumpers, pale glowing headlights, red glowing taillights, four tires with metallic rims, and a subtle underbody neon strip. The car faces along its local positive X axis. Support exactly these body styles: Compact, Sport, and Truck. Make the body proportions visibly different: Compact is smaller with a 2.8 x 0.65 x 1.5 base and smaller wheels; Sport is longer/lower with a 3.15 x 0.56 x 1.56 base; Truck is larger/taller with a 3.35 x 0.8 x 1.72 base and larger wheels. Support exactly these wheel setups: Street, Racer, and Off-road. Street uses normal black tires, Racer uses slightly narrower dark tires, and Off-road uses wider/larger brown-black tires. Add a metallic light rim inside every tire. Support exactly six paint choices: Blue (#3ea7ff), Red (#e84d4d), Lime (#7ce85c), Gold (#ffc24a), Violet (#af7cff), and White (#e7eef6), displayed as circular color swatches with a highlighted active swatch. Add an optional dark spoiler at the rear with two supports and a body-colored wing. Add optional cyan neon underglow; when off it is only faintly emissive, and when on it is strongly glowing.

Build mode UI: Overlay a top-left rounded translucent chip showing the title “GARAGE BUILDER” and status “Build mode — shape your ride, then test it.” At top-right show chips for the current paint (“Paint Blue”, etc.) and a summary such as “Body Compact · Wheels Street,” appending “· Spoiler” and “· Neon” when enabled. At the lower left show a rounded panel titled “Build your car” with explanatory text: “Pick a body, wheels, paint, and extras. Then hit test drive to take it out on the pad.” Include dropdown/select controls labeled BODY with Compact/Sport/Truck and WHEEL SETUP with Street/Racer/Off-road. Include the six paint swatches. Include buttons “Add spoiler”/“Remove spoiler,” “Neon lights off”/“Neon lights on,” “Randomize,” and a prominent blue gradient “Test drive” button. Make the layout responsive: on narrow screens the panel spans most of the width and can scroll within a limited height.

Driving mode: Clicking “Test drive” hides the build panel, disables orbit controls, resets the vehicle to the center, and enables a third-person chase camera positioned behind and above the car, smoothly following it and looking slightly above its center. Show status “Drive mode — arrows or WASD to move.” Show a lower/right translucent “Drive controls” panel with text “Use arrows or WASD. On mobile, hold the buttons below.” Include “Back to garage” and “Reset car” buttons plus a 3-by-3 directional control layout: up arrow centered on the top row, left/down/right arrows on the bottom two rows as shown by the mobile controls. Buttons must support pointer/touch press-and-hold and release.

Driving mechanics: Accept ArrowUp/W, ArrowDown/S, ArrowLeft/A, and ArrowRight/D. Forward accelerates and reverse brakes/drives backward; release gradually damps speed toward zero. Clamp speed to approximately -0.42 reverse through a body-dependent forward maximum: Truck 0.8, Compact 0.95, Sport 1.12. Use body-dependent acceleration: Truck 5.4, Compact 6.2, Sport 7.4. Steering smoothly approaches left/right input, rotates heading proportionally to speed, and turns the car in an arcade-like manner. Wheel meshes visibly spin while moving and the car has a tiny speed-dependent bob. Keep the vehicle inside a circular boundary at radius about 16.9–17, slowing it when it reaches the edge. Wheel setup affects handling: Off-road has lower grip and lower steering power, Racer has higher grip, and Street is in between. Display a top-right speed chip reading “Speed 0” while stopped and a value based on current absolute speed while driving. “Back to garage” returns to build mode, resets position/speed/heading, restores the orbit camera, and resumes the rotating display-platform presentation. “Reset car” resets the vehicle position, heading, speed, and steering without changing the build.

Add a “Randomize” action that randomly selects one of the three bodies, one of the three wheel setups, one of the six paints, and independently toggles spoiler and neon, then immediately rebuilds the visible car and updates the UI. Preserve the selected configuration between build and drive mode. The game should be fully playable with mouse/touch UI and keyboard, with no enemies, weapons, lap scoring, damage, or race timer; the goal is simply to customize the car and drive around the cone-marked practice circle.