stable

mapTransportUtils.js

@@ -70,6 +70,19 @@ export function markPathInfluence(field, path, radius = 5, strength = 1, sea = n
   }
 }
 
+export function createIncrementalPathInfluence(initialPaths = [], radius = 5, options = {}) {
+  const field = new Float32Array(SIZE);
+  const sea = options.sea || null;
+  for (const path of initialPaths || []) markPathInfluence(field, path, radius, 1, sea);
+  return {
+    field,
+    add(path, strength = 1, addRadius = radius) {
+      markPathInfluence(field, path, addRadius, strength, sea);
+      return field;
+    },
+  };
+}
+
 export function sampledNetworkCells(paths, step = 2, sea = null) {
   const cells = [];
   for (let pathId = 0; pathId < (paths || []).length; pathId++) {