可切换昼夜与雨天的像素篮球场微缩场景

Build "Corner Court" — a single-file, real-time three.js (r160, ES module via import map from jsDelivr) page: an isometric diorama of an original street basketball half court on a floating city block, rendered as crisp pixel art. UI text in English.

RENDER PIPELINE
- Orthographic camera at ~31° elevation, azimuth 45° + 90° steps (animated; drag sideways or buttons), wheel/pinch zoom; fit the whole slab into the free screen area.
- Render into a small target (screen / pixel size) with no anti-aliasing; snap the camera to whole pixels.
- Post pass:
- depth outlines (darken a pixel >0.55 m in front of a neighbour);
- nearest colour of a fixed ~54-colour city palette in OKLab (concrete/asphalt greys, sky and night blues, court teal, terracotta/orange, reds, yellows, leaf greens, skin/wood, dusk purples, neon pink); optional 4×4 Bayer dither;
- whole-pixel upscale via texelFetch; the background (depth = 1) is the page colour.
- Hard shadows (BasicShadowMap); flat-shaded Lambert low-poly.
- Puddle reflections: render the scene mirrored about the ground (scene.scale.y = -1, ground meshes and rain hidden) into a second target, sampled at gl_FragCoord in the ground shader.
- "Raw 3D" mode: the same scene at full resolution with MSAA.

SCENE
- A ragged-edged slab: grass over soil over rock.
- An asphalt pad painted texel-by-texel at 10 px/m: teal inside the 6 m arc (straight corner lines), terracotta key, white lines, free-throw and restricted circles, cracks, worn paint, a stencilled "COURT 7".
- Hoop: padded navy pole, arm, backboard with its square, orange torus rim, and a line-segment net that sways when the ball goes through.
- Chain-link fence behind the hoop (alpha-tested diamond texture).
- A brick corner shop with an awning, lit windows, a pink "OPEN" neon sign and a vending machine.
- A long wall with an original sunset-city mural.
- A sidewalk with a bench and two seated spectators.
- Floodlights, a streetlight, low-poly trees, hedges, a dumpster, a fountain, a bike rack with two bikes, a hydrant.
- Pigeons that peck and fly off when players or the ball come near.

PLAYERS — procedural rigs of ~17 boxes
- Two-bone IK for legs (running stride, defensive slide, tucked jumps) and arms: dribble hand following the ball, jump-shot set point with release and gooseneck follow-through, layup reach, two-hand dunk, chest pass, rebound/contest reach, celebration.
- Spectators sit, cheer on makes and open umbrellas in the rain.

GAME — streetball 2v2 half court
- Make it take it; 1s inside the arc, 2s beyond; first to 11; win counter.
- Check ball at the top (pass to the defender and back). A change of possession must be cleared beyond the arc.
- Offence AI: dribble to spots, drive when the lane is open, pull-up jumpers when open, layups/dunks at the rim, passes when pressured; the off-ball player spots up or cuts. Man-to-man defence with stance, gap control, steals and contested jumps (blocks).
- Ball physics with substeps: bounces on asphalt, sphere vs torus rim and backboard box, net drag, pole, fences, wall, slab edge.
- Jumpers aimed on a ballistic arc (~50°) with speed/aim noise growing with distance and contest.
- Layups lofted to a peak above the rim so they drop in.
- Rebounds with jumps; out of bounds goes to the other team.
- Score, possession and status messages ("SWISH", "BLOCKED!", "TAKE IT BACK", …) on a lit scoreboard.
- Clicks: the ball handler shoots, his teammate gets a pass, the court sends the handler there. Shoot/Pass buttons.

WEATHER AND TIME
- Day / Dusk / Night lighting presets blended over ~1.6 s; floodlights, streetlight, neon and windows at night.
- Dry / Drizzle / Downpour: rain as short line streaks with splashes. A wetness value rises and slowly dries: the asphalt darkens, puddles spread from low spots in a precomputed depth map and mirror the scene, rain rings flicker in them; feet and the ball splash.

UI
- Pixel display font (Silkscreen) and a clean body font; light/dark themes via tokens.
- Controls: Time, Weather (with a court wetness bar), Shoot, Pass, New game, Pause, Turn left/right, Pixel art/Raw 3D, Pixel size, Palette/Dither/Outlines.
- A "How it's drawn" panel; a stacked mobile layout with no horizontal scroll.

出处：作者在原帖下的回复。提示词保留原文语言，未做改写。

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