Catch all errors thrown by a Speed Provider's getCostForStep function

CHANGELOG.md

@@ -1,3 +1,8 @@
+## In development
+### Bugfixes
+- Fixed a bug where a bug in a Speed Provider could lead to the ruler getting stuck, leaving the token immovable
+
+
 ## 1.6.3
 ### Bugfixes
 - If the movement history for a token is being updated (for example by a history reset by the gm) while a player is currently measuring a distance for that token the history change is now being reflected in the active measurement.

src/api.js

@@ -101,10 +101,16 @@ export function getUnreachableColorFromSpeedProvider() {
 }
 
 export function getCostFromSpeedProvider(token, area) {
+	try {
 		if (currentSpeedProvider instanceof Function) {
 			return SpeedProvider.prototype.getCostForStep.call(undefined, token, area);
 		}
 		return currentSpeedProvider.getCostForStep(token, area);
+	}
+	catch (e) {
+		console.error(e);
+		return 1;
+	}
 }
 
 export function getMovedDistanceFromToken(token) {