Refactor player and room to support adding effects.

data/rooms.ts

@@ -1,8 +1,22 @@
-import { GameData } from "./data.ts";
+import { GameData, SceneProperties } from "../types.ts";
 
-export const hall: GameData = {
-	description:
-		"You are standing in a big hall. There's lots of nooks, crannies, and" +
-		"room for general testing. Aw yeah... sweet testing!",
-	items: [{ name: "flashlight" }],
+export const hall: GameData<SceneProperties> = {
+	properties: {
+		description: "It's very dark",
+		items: [{ name: "flashlight" }],
+	},
+	conditions: {
+		effects: [
+			{
+				name: "lights-on",
+				properties: {
+					description:
+						"You are standing in a big hall. There's lots of nooks, " +
+						"crannies, and room for general testing. Aw yeah... sweet testing!",
+					shortDescription: "You are in a big hall.",
+				},
+				source: "player",
+			},
+		],
+	},
 };