chore: add terrain surface config

src/data/world/terrainConfig.ts

@@ -1,108 +1,58 @@
+import type { TerrainSurfaceColorConfig } from "@/types/world/terrainSurface";
+
+export const TERRAIN_SURFACE_COLOR_TOLERANCE = 15;
+export const TERRAIN_WATER_HEIGHT = 0;
+export const TERRAIN_TILE_SIZE = 1;
+export const GRASS_BASE_COLOR = "#1a3a1a";
+
 export const TERRAIN_COLORS = {
   grass1: {
     hex: "#84C66B",
     rgb: [132, 198, 107] as const,
-    type: "grass" as const,
+    kind: "grass",
     grassTipColor: "#84C66B",
   },
   grass2: {
     hex: "#67B058",
     rgb: [103, 176, 88] as const,
-    type: "grass" as const,
+    kind: "grass",
     grassTipColor: "#67B058",
   },
   grass3: {
     hex: "#A3CA5B",
     rgb: [163, 202, 91] as const,
-    type: "grass" as const,
+    kind: "grass",
     grassTipColor: "#A3CA5B",
   },
   potager: {
     hex: "#342420",
     rgb: [52, 36, 32] as const,
-    type: "tile" as const,
-    tileModel: "/models/potager/potager.gltf",
-    tileSize: 1,
+    kind: "garden",
+    modelPath: "/models/potager/potager.gltf",
+    tileSize: TERRAIN_TILE_SIZE,
   },
   terre: {
     hex: "#513E2C",
     rgb: [81, 62, 44] as const,
-    type: "none" as const,
+    kind: "dirt",
   },
   chemin: {
     hex: "#F5D896",
     rgb: [245, 216, 150] as const,
-    type: "tile" as const,
-    tileModel: "/models/chemins/model.gltf",
-    tileSize: 1,
+    kind: "path",
+    modelPath: "/models/chemins/model.gltf",
+    tileSize: TERRAIN_TILE_SIZE,
   },
   eau: {
     hex: "#91DAF5",
     rgb: [145, 218, 245] as const,
-    type: "water" as const,
+    kind: "water",
   },
   cailloux: {
     hex: "#B6D3DE",
     rgb: [182, 211, 222] as const,
-    type: "none" as const,
+    kind: "rock",
   },
-} as const;
+} satisfies Record<string, TerrainSurfaceColorConfig>;
 
 export type TerrainColorKey = keyof typeof TERRAIN_COLORS;
-export type TerrainType = "grass" | "tile" | "water" | "none";
-
-export const GRASS_BASE_COLOR = "#1a3a1a";
-
-export const COLOR_TOLERANCE = 15;
-
-export function colorMatchesTerrain(
-  r: number,
-  g: number,
-  b: number,
-  targetRgb: readonly [number, number, number],
-  tolerance: number = COLOR_TOLERANCE,
-): boolean {
-  return (
-    Math.abs(r - targetRgb[0]) <= tolerance &&
-    Math.abs(g - targetRgb[1]) <= tolerance &&
-    Math.abs(b - targetRgb[2]) <= tolerance
-  );
-}
-
-export function getTerrainTypeFromColor(
-  r: number,
-  g: number,
-  b: number,
-): TerrainColorKey | null {
-  for (const [key, config] of Object.entries(TERRAIN_COLORS)) {
-    if (colorMatchesTerrain(r, g, b, config.rgb)) {
-      return key as TerrainColorKey;
-    }
-  }
-  return null;
-}
-
-export function isGrassZone(r: number, g: number, b: number): boolean {
-  return (
-    colorMatchesTerrain(r, g, b, TERRAIN_COLORS.grass1.rgb) ||
-    colorMatchesTerrain(r, g, b, TERRAIN_COLORS.grass2.rgb) ||
-    colorMatchesTerrain(r, g, b, TERRAIN_COLORS.grass3.rgb)
-  );
-}
-
-export function getGrassTipColor(
-  r: number,
-  g: number,
-  b: number,
-): string | null {
-  if (colorMatchesTerrain(r, g, b, TERRAIN_COLORS.grass1.rgb)) {
-    return TERRAIN_COLORS.grass1.grassTipColor;
-  }
-  if (colorMatchesTerrain(r, g, b, TERRAIN_COLORS.grass2.rgb)) {
-    return TERRAIN_COLORS.grass2.grassTipColor;
-  }
-  if (colorMatchesTerrain(r, g, b, TERRAIN_COLORS.grass3.rgb)) {
-    return TERRAIN_COLORS.grass3.grassTipColor;
-  }
-  return null;
-}

src/types/world/terrainSurface.ts

@@ -0,0 +1,18 @@
+export type TerrainSurfaceKind =
+  | "grass"
+  | "path"
+  | "water"
+  | "garden"
+  | "dirt"
+  | "rock";
+
+export type TerrainSurfaceRgb = readonly [number, number, number];
+
+export interface TerrainSurfaceColorConfig {
+  hex: string;
+  rgb: TerrainSurfaceRgb;
+  kind: TerrainSurfaceKind;
+  grassTipColor?: string;
+  modelPath?: string;
+  tileSize?: number;
+}

src/utils/world/terrainSurfaceColor.ts

@@ -0,0 +1,51 @@
+import {
+  TERRAIN_COLORS,
+  TERRAIN_SURFACE_COLOR_TOLERANCE,
+  type TerrainColorKey,
+} from "@/data/world/terrainConfig";
+import type { TerrainSurfaceRgb } from "@/types/world/terrainSurface";
+
+export function colorMatchesTerrainSurface(
+  r: number,
+  g: number,
+  b: number,
+  targetRgb: TerrainSurfaceRgb,
+  tolerance: number = TERRAIN_SURFACE_COLOR_TOLERANCE,
+): boolean {
+  return (
+    Math.abs(r - targetRgb[0]) <= tolerance &&
+    Math.abs(g - targetRgb[1]) <= tolerance &&
+    Math.abs(b - targetRgb[2]) <= tolerance
+  );
+}
+
+export function getTerrainColorKeyFromRgb(
+  r: number,
+  g: number,
+  b: number,
+): TerrainColorKey | null {
+  for (const [key, config] of Object.entries(TERRAIN_COLORS)) {
+    if (colorMatchesTerrainSurface(r, g, b, config.rgb)) {
+      return key as TerrainColorKey;
+    }
+  }
+
+  return null;
+}
+
+export function isGrassTerrainColor(r: number, g: number, b: number): boolean {
+  const key = getTerrainColorKeyFromRgb(r, g, b);
+  return key !== null && TERRAIN_COLORS[key].kind === "grass";
+}
+
+export function getGrassTipColorFromRgb(
+  r: number,
+  g: number,
+  b: number,
+): string | null {
+  const key = getTerrainColorKeyFromRgb(r, g, b);
+  if (key === null) return null;
+
+  const terrainColor = TERRAIN_COLORS[key];
+  return "grassTipColor" in terrainColor ? terrainColor.grassTipColor : null;
+}