MISC: Support JSX, TS, TSX script files (#1216)

src/Paths/ScriptFilePath.ts

@@ -1,14 +1,16 @@
 import { Directory } from "./Directory";
 import { FilePath, resolveFilePath } from "./FilePath";
 
-/** Type for just checking a .js extension with no other verification*/
+/** Type for just checking a script extension with no other verification*/
 type WithScriptExtension = string & { __fileType: "Script" };
 /** Type for a valid absolute FilePath with a script extension */
 export type ScriptFilePath = FilePath & WithScriptExtension;
 
+export const legacyScriptExtension = ".script";
+
 /** Valid extensions. Used for some error messaging. */
-export type ScriptExtension = ".js" | ".script";
-export const validScriptExtensions: ScriptExtension[] = [".js", ".script"];
+export const validScriptExtensions = [".js", ".jsx", ".ts", ".tsx", legacyScriptExtension] as const;
+export type ScriptExtension = (typeof validScriptExtensions)[number];
 
 /** Sanitize a player input, resolve any relative paths, and for imports add the correct extension if missing
  * @param path The player-provided path to a file. Can contain relative parts.
@@ -28,3 +30,7 @@ export function resolveScriptFilePath(
 export function hasScriptExtension(path: string): path is WithScriptExtension {
   return validScriptExtensions.some((extension) => path.endsWith(extension));
 }
+
+export function isLegacyScript(path: string): boolean {
+  return path.endsWith(legacyScriptExtension);
+}