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Arcane v0.23.0

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@jsvd jsvd released this 28 Feb 20:47
· 42 commits to main since this release
v0.23.0
d607a43

[0.23.0] - 2026-02-28

Added

  • spawnBurst(x, y, opts) — self-destructing particle burst with automatic Rust emitter lifecycle management; emits count particles over duration seconds then cleans up when all particles die. Replaces ~70 lines of manual emitter bookkeeping.
  • getManagedBurstCount() — returns number of active managed bursts (for testing/debugging)
  • trackTarget(getTarget, opts) — declarative camera tracking; set once, runs automatically each frame via createGame(). Accepts zoom as number or getter function. Replaces per-frame followTargetSmooth() boilerplate.
  • stopTracking() / isTracking() — control and query declarative camera tracking state
  • withScreenSpace(fn) — push/pop screen-space context so all draw calls inside default to screenSpace: true. Explicit screenSpace on individual calls always wins. Wired into drawSprite, drawText, all 4 UI primitives, and all 10 shape functions.
  • isScreenSpaceActive() — query whether a withScreenSpace context is active
  • drawBody(bodyId, opts) — draws a sprite centered on a physics body's position/rotation; simplifies the common getBodyState() + drawSprite() pattern
  • Auto-clamp delta time — 250ms hard cap in Rust; optional maxDeltaTime in GameConfig for per-game tighter caps

Changed (BREAKING)

  • Coordinate system now top-left origin — (0, 0) is the top-left corner of the screen, matching web canvas, Unity 2D, and Godot conventions. Camera position represents the viewport's top-left corner in world space. autoCamera option removed from createGame(). All screen↔world math simplified. All demos and documentation updated.
  • sdfOffset / sdfRepeat now take Vec2 — sdfOffset(shape, x, y) → sdfOffset(shape, {x, y}); sdfRepeat(shape, x, y) → sdfRepeat(shape, {x, y}) for consistency with the rest of the SDF API

Fixed

  • Physics bounce — restitution combining changed from min() to max() so the bouncier surface wins (matching Box2D/Rapier). Fixed speculative contact bias cancelling out bounce impulse.
  • Glow shader — moved spread→intensity conversion from WGSL to TypeScript layer; shader uses clean exp(-d * intensity) formula

Removed

  • Legacy physics solver — removed single-contact solver (~250 lines); manifold solver (TGS Soft) is now the only path

Install: cargo install arcane-engine

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