Add possibility to use a cutom overpass script, add 'grassfields in parks'-layer

Customizations/JSON/SourceConfig.ts

@@ -0,0 +1,32 @@
+import {TagsFilter} from "../../Logic/Tags";
+
+export default class SourceConfig {
+
+    osmTags?: TagsFilter;
+    overpassScript?: string;
+    geojsonSource?: string;
+
+    constructor(params: {
+        osmTags?: TagsFilter,
+        overpassScript?: string,
+        geojsonSource?: string
+    }) {
+
+        let defined = 0;
+        if (params.osmTags) {
+            defined++;
+        }
+        if (params.overpassScript) {
+            defined++;
+        }
+        if (params.geojsonSource) {
+            defined++;
+        }
+        if (defined == 0) {
+            throw "Source: nothing correct defined in the source"
+        }
+        this.osmTags = params.osmTags;
+        this.overpassScript = params.overpassScript;
+        this.geojsonSource = params.geojsonSource;
+    }
+}