Monorepo for Aesthetic.Computer
aesthetic.computer
arena: fix orbit to not affect physics
Track appliedOrbitOffset and undo it at the start of sim() so the orbit
rotation only affects the render camera position, not the physics simulation.
This prevents the orbit from causing player movement.
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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// without changing player body rotation. Orbits by modifying XZ offset.
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let orbitAngle = 0; // extra Y rotation for camera only (degrees)
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let orbiting = false; // currently dragging with right button
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let appliedOrbitOffset = [0, 0]; // track X,Z offset we applied so we can undo it
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function applyZoom(doll) {
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if (!doll) return;
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const cam = doll?.cam;
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if (!cam) return;
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// Undo any orbit offset we applied last frame so it doesn't affect physics
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cam.x -= appliedOrbitOffset[0];
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cam.z -= appliedOrbitOffset[1];
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appliedOrbitOffset[0] = 0;
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appliedOrbitOffset[1] = 0;
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// Always use the *logical* player position (not the render camera) for
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// gameplay state. In 3P mode cam.x/z is offset behind the player.
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const phys = doll?.physics;
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const baseAngle = Math.atan2(dx, dz);
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const orbitRad = orbitAngle * Math.PI / 180;
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const newAngle = baseAngle + orbitRad;
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cam.x = pCamX + dist * Math.sin(newAngle);
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cam.z = pCamZ + dist * Math.cos(newAngle);
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const newX = pCamX + dist * Math.sin(newAngle);
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const newZ = pCamZ + dist * Math.cos(newAngle);
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// Track what we're adding so we can undo it next frame
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appliedOrbitOffset[0] = newX - pCamX - dx;
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appliedOrbitOffset[1] = newZ - pCamZ - dz;
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cam.x = newX;
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cam.z = newZ;
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}
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}
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}