Games editor: a creator world shows no upload buttons and no Paint tool (both need uploads) (#93)

ddiff --git a/apps/client/src/editor/assets/assetController.ts b/apps/client/src/editor/assets/assetController.ts
iindex bce6650..9bee1ad 100644
---- a/apps/client/src/editor/assets/assetController.ts
++++ b/apps/client/src/editor/assets/assetController.ts
@@@ -119,6 +119,11 @@ export function sanitizeTextureName(raw: string, taken: (name: string) => boolea
  export class AssetController {
    constructor(private readonly opts: AssetControllerOptions) {}
  
++  /** Whether this map takes uploads (a creator world does not, for now). */
++  get uploadsAllowed(): boolean {
++    return this.opts.assetsUrl !== null
++  }
++
    /** POST raw bytes to the content-addressed store. */
    private async upload(blob: Blob): Promise<UploadedAsset | 'forbidden' | null> {
      const url = this.opts.assetsUrl === undefined ? '/api/map-assets' : this.opts.assetsUrl
ddiff --git a/apps/client/src/editor/editorApp.ts b/apps/client/src/editor/editorApp.ts
iindex e474626..5289b16 100644
---- a/apps/client/src/editor/editorApp.ts
++++ b/apps/client/src/editor/editorApp.ts
@@@ -101,7 +101,10 @@ function defaultEditorName(): string {
  export async function bootEditor(): Promise<void> {
    const canvas = document.getElementById('game') as HTMLCanvasElement
    const mount = document.getElementById('shell') as HTMLElement
--  const shell = buildShell(mount, canvas)
++  // The place's map, or a creator world's (/editor?world=<id>: the owner's draft, built-in materials, one editor,
++  // no Paint: its masks would be uploads).
++  const endpoints = mapEndpoints()
++  const shell = buildShell(mount, canvas, endpoints.assets ? [] : ['paint'])
  
    const engine = new Engine(canvas, true)
    const scene = new Scene(engine)
@@@ -114,8 +117,6 @@ export async function bootEditor(): Promise<void> {
    // /map.json is the v2 document, so the editor only ever holds v2 — and a
    // missing or invalid map is emptyMapV2(), never a fabricated starter
    // heightfield.
--  // The place's map, or a creator world's (/editor?world=<id>: the owner's draft, built-in materials, one editor).
--  const endpoints = mapEndpoints()
    const bootResp = await fetchMap(endpoints)
    const bootRevision = bootResp.headers.get('etag')?.replace(/"/g, '') ?? ''
    const bootParsed = parseMapFile(await bootResp.json().catch(() => null))
ddiff --git a/apps/client/src/editor/ui/editorShell.ts b/apps/client/src/editor/ui/editorShell.ts
iindex a65d3e1..c862896 100644
---- a/apps/client/src/editor/ui/editorShell.ts
++++ b/apps/client/src/editor/ui/editorShell.ts
@@@ -100,13 +100,18 @@ const textureOptions = (): { value: string; label: string }[] => [
  ]
  
  /** Build the workspace into `mount` and return every element the app drives. */
--export function buildShell(mount: HTMLElement, canvas: HTMLCanvasElement): ShellElements {
++/** `hideTools`: tools a mode cannot use (a creator world has no Paint: its masks would be uploads). */
++export function buildShell(
++  mount: HTMLElement,
++  canvas: HTMLCanvasElement,
++  hideTools: readonly Tool[] = [],
++): ShellElements {
    const root = el('div', 'workspace', 'workspace')
  
    // ── Toolbar ─────────────────────────────────────────────────────────
    const toolbar = el('div', 'toolbar')
    const tools = el('div', 'tools', 'tools')
--  for (const [id, icon, title] of TOOLS) {
++  for (const [id, icon, title] of TOOLS.filter(([t]) => !hideTools.includes(t))) {
      const b = el('button', 'tool', `tool-${id}`)
      b.type = 'button'
      b.dataset['tool'] = id
ddiff --git a/apps/client/src/editor/ui/editorUi.ts b/apps/client/src/editor/ui/editorUi.ts
iindex 638019d..e503b57 100644
---- a/apps/client/src/editor/ui/editorUi.ts
++++ b/apps/client/src/editor/ui/editorUi.ts
@@@ -126,22 +126,26 @@ export function createEditorUi(opts: EditorUiOptions): EditorUi {
    )
  
    // ── Dock ────────────────────────────────────────────────────────────
--  const assets = new AssetBrowser(shell.dockPanels['assets']!, {
--    onUseTexture: (name) => {
--      const ids = selection.ids()
--      if (ids.length > 0) opts.setProperty(ids, 'tex', name)
--      else (document.getElementById('paint-tex') as HTMLSelectElement).value = name
++  const assets = new AssetBrowser(
++    shell.dockPanels['assets']!,
++    {
++      onUseTexture: (name) => {
++        const ids = selection.ids()
++        if (ids.length > 0) opts.setProperty(ids, 'tex', name)
++        else (document.getElementById('paint-tex') as HTMLSelectElement).value = name
++      },
++      // Genuinely arms the placement tool rather than telling the user to go
++      // and find it themselves.
++      onPlaceModel: (id) => opts.placeModel(id),
++      onFindUsages: (ids) => selection.replaceMany(ids),
++      onDeleteTexture: (name) => void opts.assets.deleteTexture(name),
++      onDeleteModel: (id) => void opts.assets.deleteModel(id),
++      onRenameTexture: (name, next) => void opts.assets.renameTexture(name, next),
++      onImportTexture: (file) => void opts.assets.importTexture(file),
++      onImportModel: (file) => void opts.assets.importModel(file),
      },
--    // Genuinely arms the placement tool rather than telling the user to go
--    // and find it themselves.
--    onPlaceModel: (id) => opts.placeModel(id),
--    onFindUsages: (ids) => selection.replaceMany(ids),
--    onDeleteTexture: (name) => void opts.assets.deleteTexture(name),
--    onDeleteModel: (id) => void opts.assets.deleteModel(id),
--    onRenameTexture: (name, next) => void opts.assets.renameTexture(name, next),
--    onImportTexture: (file) => void opts.assets.importTexture(file),
--    onImportModel: (file) => void opts.assets.importModel(file),
--  })
++    opts.assets.uploadsAllowed,
++  )
  
    const historyPanel = new HistoryPanel(shell.dockPanels['history']!, (steps) => {
      for (let i = 0; i < Math.abs(steps); i++) history.undo()
ddiff --git a/apps/client/src/editor/ui/panels.ts b/apps/client/src/editor/ui/panels.ts
iindex 5227506..fd99a7e 100644
---- a/apps/client/src/editor/ui/panels.ts
++++ b/apps/client/src/editor/ui/panels.ts
@@@ -64,6 +64,8 @@ export class AssetBrowser {
    constructor(
      private readonly root: HTMLElement,
      private readonly callbacks: AssetBrowserCallbacks,
++    /** false in a creator world: no import (uploads are staff-only there for now). */
++    private readonly uploads = true,
    ) {}
  
    setState(next: Partial<AssetBrowserState>): void {
@@@ -71,21 +73,7 @@ export class AssetBrowser {
      this.render()
    }
  
--  private render(): void {
--    const { tab, filter } = this.state
--    this.root.textContent = ''
--
--    const tabs = document.createElement('div')
--    tabs.className = 'asset-tabs'
--    for (const name of ['textures', 'models'] as const) {
--      const b = document.createElement('button')
--      b.type = 'button'
--      b.textContent = name
--      b.className = tab === name ? 'active' : ''
--      b.addEventListener('click', () => this.setState({ tab: name }))
--      tabs.append(b)
--    }
--    // Import lives beside the list it adds to, so the flow is obvious.
++  private importControl(tab: 'textures' | 'models'): HTMLLabelElement {
      const importLabel = document.createElement('label')
      importLabel.className = 'mini asset-import'
      importLabel.textContent = tab === 'textures' ? '＋ Import texture' : '＋ Import GLB'
@@@ -102,7 +90,32 @@ export class AssetBrowser {
        importInput.value = ''
      })
      importLabel.append(importInput)
--    tabs.append(importLabel)
++    return importLabel
++  }
++
++  private render(): void {
++    const { tab, filter } = this.state
++    this.root.textContent = ''
++
++    const tabs = document.createElement('div')
++    tabs.className = 'asset-tabs'
++    for (const name of ['textures', 'models'] as const) {
++      const b = document.createElement('button')
++      b.type = 'button'
++      b.textContent = name
++      b.className = tab === name ? 'active' : ''
++      b.addEventListener('click', () => this.setState({ tab: name }))
++      tabs.append(b)
++    }
++    // Import lives beside the list it adds to, so the flow is obvious. A creator world says why there is none.
++    if (this.uploads) tabs.append(this.importControl(tab))
++    else {
++      const note = document.createElement('span')
++      note.className = 'mini asset-import'
++      note.textContent = 'Built-in materials only here'
++      note.title = 'Uploaded textures and models stay with staff maps for now.'
++      tabs.append(note)
++    }
      this.root.append(tabs)
  
      const needle = filter.trim().toLowerCase()