Refactoring: move all code files into a src directory

src/UI/InputElement/Validators/DirectionValidator.ts

@@ -0,0 +1,29 @@
+import IntValidator from "./IntValidator"
+
+export default class DirectionValidator extends IntValidator {
+    constructor() {
+        super(
+            "direction",
+            [
+                "A geographical direction, in degrees. 0° is north, 90° is east, ... Will return a value between 0 (incl) and 360 (excl).",
+                "### Input helper",
+                "This element has an input helper showing a map and 'viewport' indicating the direction. By default, this map is zoomed to zoomlevel 17, but this can be changed with the first argument",
+            ].join("\n\n")
+        )
+    }
+
+    isValid(str): boolean {
+        if (str.endsWith("°")) {
+            str = str.substring(0, str.length - 1)
+        }
+        return super.isValid(str)
+    }
+
+    reformat(str): string {
+        if (str.endsWith("°")) {
+            str = str.substring(0, str.length - 1)
+        }
+        const n = Number(str) % 360
+        return "" + n
+    }
+}