Initial Commit

openspec/changes/enterprise-gaming-r3f-ui/proposal.md

@@ -0,0 +1,64 @@
+# OpenSpec Change: enterprise-gaming-r3f-ui
+
+- **Change ID**: enterprise-gaming-r3f-ui
+- **Package**: `@suaveplan/r3f-ui`
+- **Category**: gaming/gameplay
+- **Target path**: `gaming/gameplay/r3f-ui`
+- **Status**: PROPOSED
+- **Date**: 2026-04-24
+
+---
+
+## Summary
+
+Deliver `@suaveplan/r3f-ui` on the genesis branch from scratch at enterprise quality. The package provides HTML/React UI components embedded into 3D space via React Three Fiber: `Billboard3D` always-facing panel with configurable lock-axis, `WorldLabel` text label anchored to a 3D point with screen-edge clamping, `HealthBar3D` segmented progress bar above an entity, `InteractionPrompt` contextual action tooltip with keyboard hint, `Tooltip3D` hover-triggered tooltip, and `RadialMenu` circular context menu. All components use `@react-three/drei`'s `<Html>` for crisp GPU-independent rendering. Genesis adds 100% coverage and Storybook stories.
+
+---
+
+## Available workspace deps
+
+`@suaveplan/error`, `@suaveplan/types`, react, `@react-three/fiber`, `@react-three/drei`, three.
+
+---
+
+## Public API surface
+
+```ts
+function Billboard3D(props: Billboard3DProps): JSX.Element
+// position, lockX, lockY, lockZ, children
+
+function WorldLabel(props: WorldLabelProps): JSX.Element
+// position, text, clampToEdge, style
+
+function HealthBar3D(props: HealthBar3DProps): JSX.Element
+// value, max, segments, width, height, colors
+
+function InteractionPrompt(props: InteractionPromptProps): JSX.Element
+// label, keyHint, visible, position
+
+function Tooltip3D(props: Tooltip3DProps): JSX.Element
+// content, triggerRef, offset
+
+function RadialMenu(props: RadialMenuProps): JSX.Element
+// items: RadialMenuItem[], onSelect, open, position
+```
+
+---
+
+## File layout
+
+```text
+gaming/gameplay/r3f-ui/
+  package.json / tsconfig.json / vitest.config.ts
+  src/
+    index.ts / error-codes.ts
+    types/common.ts + md
+    components/
+      Billboard3D/ (tsx + md + test + stories + index)
+      WorldLabel/ (tsx + md + test + stories + index)
+      HealthBar3D/ (tsx + md + test + stories + index)
+      InteractionPrompt/ (tsx + md + test + stories + index)
+      Tooltip3D/ (tsx + md + test + stories + index)
+      RadialMenu/ (tsx + md + test + stories + index)
+  tests/integration.test.ts
+```