Monorepo for Aesthetic.Computer
aesthetic.computer
arena: press F to cycle hover axis-flip experiment (NONE/X/Z/XZ)
Adds a runtime toggle for the hover raycast's axis-sign convention so
we can A/B all four combinations without recompiling. Current default
is Z-only flip (kept from last experiment since it fixed one axis).
HUD shows the active mode (F:NONE / F:X / F:Z / F:XZ) in the top-right.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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system/public/aesthetic.computer/disks/arena.mjs
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system/public/aesthetic.computer/disks/arena.mjs
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let lastHitWorld = null; // [x, z] or null
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let lastPenScreen = null; // [x, y] or null
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// Axis-sign experiment toggle. Press F to cycle. See the hover raycast for
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// what each bit flips.
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// 0 = baseline 1 = flipX
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// 2 = flipZ 3 = flip both
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let hoverFlipMode = 2; // current best guess: Z flipped per experiments
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// ⚡ Adaptive-quality flags driven by measured render FPS. Auto-toggle in
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// paint() based on the rolling frame-time average. Pieces can override via the
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// HUD labels (future: click to pin). "LOW" = coarser tile, static lava, skip
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lastHitWorld = null;
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lastPenScreen = penLocked ? null : [mx, my];
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if (fy < -0.001) {
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// EXPERIMENT: Z convention flip test. If the raycast hits the wrong tile
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// mirrored across the player, flipping Z in both ray origin AND direction
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// is a point reflection across the XY plane through origin. If this
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// makes the hover tile correct, we know Z-axis in engine is inverted
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// from what my derivation assumed. (Direction-only or origin-only flips
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// would not cause a clean mirror; we need both or neither.)
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const camWorldX = -cam.x;
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// Ray origin + direction. The hoverFlipMode toggle lets us A/B all four
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// axis-sign combinations without editing source — press F to cycle.
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// 0 = no flip (baseline derivation)
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// 1 = flip X (hit.x)
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// 2 = flip Z (hit.z)
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// 3 = flip both
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const flipX = (hoverFlipMode & 1) !== 0;
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const flipZ = (hoverFlipMode & 2) !== 0;
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const camWorldX = flipX ? cam.x : -cam.x;
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const camWorldY = -cam.y;
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const camWorldZ = cam.z; // was -cam.z (flipped)
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const fzAdj = -fz; // flipped direction
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const camWorldZ = flipZ ? cam.z : -cam.z;
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const fxAdj = flipX ? -fx : fx;
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const fzAdj = flipZ ? -fz : fz;
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const t = (GROUND_Y - camWorldY) / fy;
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if (t > 0 && t < 200) {
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const hitX = camWorldX + t * fx;
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const hitX = camWorldX + t * fxAdj;
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const hitZ = camWorldZ + t * fzAdj;
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hoverTile = tileAt(hitX, hitZ);
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lastHitWorld = [hitX, hitZ];
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if (perfLowMode) rightLabel("-BODY -ANIM", margin + lineH * 7);
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else if (perfMedMode) rightLabel("-LAVA-ANIM", margin + lineH * 7);
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// Hover-flip experiment — press F to cycle, label shows current mode.
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const flipNames = ["F:NONE", "F:X", "F:Z", "F:XZ"];
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ink(255, 200, 80);
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rightLabel(flipNames[hoverFlipMode], margin + lineH * 8);
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// Speed meter (bottom-center). speedSmoothed is per-sim-tick position delta;
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// sim runs at SIM_HZ, so ups = perTickDelta * SIM_HZ.
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const ups = speedSmoothed * SIM_HZ;
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function act({ event: e, penLock, system }) {
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if (e.is("pen:locked")) penLocked = true;
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if (e.is("pen:unlocked")) penLocked = false;
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// F cycles the hover axis-flip experiment (0 = no flip, 1 = X, 2 = Z, 3 = both).
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if (e.is("keyboard:down:f")) {
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hoverFlipMode = (hoverFlipMode + 1) & 3;
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console.log("🔄 hoverFlipMode →", hoverFlipMode,
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["baseline", "flipX", "flipZ", "flipBoth"][hoverFlipMode]);
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}
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// 🎥 Middle-mouse toggles third-person (press once to enter, press again
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// to exit). Only trigger on touch so the release doesn't also flip.