Add api endpoint to determine the distance that a token has moved already

src/compatibility.js

@@ -1,5 +1,6 @@
+import {getCostFromSpeedProvider} from "./api.js";
 import {getColorForDistance} from "./main.js"
-import {highlightTokenShape} from "./util.js"
+import {getAreaFromPositionAndShape, highlightTokenShape} from "./util.js";
 
 export function getHexSizeSupportTokenGridCenter(token) {
 	const tokenCenterOffset = CONFIG.hexSizeSupport.getCenterOffset(token)
@@ -12,3 +13,11 @@ export function highlightMeasurementTerrainRuler(ray, startDistance, tokenShape=
 		highlightTokenShape.call(this, space, tokenShape, color, alpha)
 	}
 }
+
+export function measureDistances(segments, token, shape, gridSpaces=true) {
+	const terrainRulerAvailable = game.modules.get("terrain-ruler")?.active && canvas.grid.type !== CONST.GRID_TYPES.GRIDLESS;
+	if (terrainRulerAvailable)
+		return game.terrainRuler.measureDistances(segments, {costFunction: (x, y) => getCostFromSpeedProvider(token, getAreaFromPositionAndShape({x, y}, shape), {x, y})});
+	else
+		return canvas.grid.measureDistances(segments, { gridSpaces });
+}