Add commands and update brush face handling

src/materials/starter-material-library.ts

@@ -0,0 +1,62 @@
+export type MaterialPattern = "grid" | "checker" | "stripes" | "diamond";
+
+export interface MaterialDef {
+  id: string;
+  name: string;
+  baseColorHex: string;
+  accentColorHex: string;
+  pattern: MaterialPattern;
+  tags: string[];
+}
+
+export const STARTER_MATERIAL_LIBRARY: readonly MaterialDef[] = [
+  {
+    id: "starter-amber-grid",
+    name: "Amber Grid",
+    baseColorHex: "#c79a63",
+    accentColorHex: "#5f3820",
+    pattern: "grid",
+    tags: ["starter", "wall"]
+  },
+  {
+    id: "starter-concrete-checker",
+    name: "Concrete Checker",
+    baseColorHex: "#7d838c",
+    accentColorHex: "#5a616a",
+    pattern: "checker",
+    tags: ["starter", "floor"]
+  },
+  {
+    id: "starter-hazard-stripe",
+    name: "Hazard Stripe",
+    baseColorHex: "#d1a245",
+    accentColorHex: "#211b16",
+    pattern: "stripes",
+    tags: ["starter", "warning"]
+  },
+  {
+    id: "starter-night-diamond",
+    name: "Night Diamond",
+    baseColorHex: "#5a6985",
+    accentColorHex: "#1f2836",
+    pattern: "diamond",
+    tags: ["starter", "trim"]
+  }
+] as const;
+
+export function cloneMaterialDef(material: MaterialDef): MaterialDef {
+  return {
+    ...material,
+    tags: [...material.tags]
+  };
+}
+
+export function cloneMaterialRegistry(materials: Record<string, MaterialDef>): Record<string, MaterialDef> {
+  return Object.fromEntries(
+    Object.entries(materials).map(([materialId, material]) => [materialId, cloneMaterialDef(material)])
+  );
+}
+
+export function createStarterMaterialRegistry(): Record<string, MaterialDef> {
+  return Object.fromEntries(STARTER_MATERIAL_LIBRARY.map((material) => [material.id, cloneMaterialDef(material)]));
+}