Add API function to receive the color for a given distance and token

src/api.js

@@ -116,6 +116,20 @@ export function getCostFromSpeedProvider(token, area, options) {
 	}
 }
 
+export function getColorForDistanceAndToken(distance, token, ranges=null) {
+	if (!ranges) {
+		ranges = getRangesFromSpeedProvider(token);
+	}
+	if (ranges.length === 0)
+		return this.color;
+	const currentRange = ranges.reduce((minRange, currentRange) => {
+		if (distance <= currentRange.range && currentRange.range < minRange.range)
+			return currentRange;
+		return minRange;
+	}, {range: Infinity, color: getUnreachableColorFromSpeedProvider()});
+	return currentRange.color;
+}
+
 export function getMovedDistanceFromToken(token) {
 	const history = getMovementHistory(token);
 	const segments = Ruler.dragRulerGetRaysFromWaypoints(history, {x: token.x, y: token.y}).map(ray => {return {ray}});

src/compatibility.js

@@ -1,5 +1,4 @@
 import {getCostFromSpeedProvider} from "./api.js";
-import {getColorForDistance} from "./main.js"
 import {settingsKey} from "./settings.js";
 import {getAreaFromPositionAndShape, highlightTokenShape} from "./util.js";
 
@@ -10,7 +9,7 @@ export function getHexSizeSupportTokenGridCenter(token) {
 
 export function highlightMeasurementTerrainRuler(ray, startDistance, tokenShape=[{x: 0, y: 0}], alpha=1) {
 	for (const space of ray.terrainRulerVisitedSpaces.reverse()) {
-		const color = getColorForDistance.call(this, startDistance, space.distance)
+		const color = this.dragRulerGetColorForDistance(startDistance + space.distance);
 		highlightTokenShape.call(this, space, tokenShape, color, alpha)
 	}
 }

src/foundry_imports.js

@@ -1,7 +1,6 @@
 import {highlightMeasurementTerrainRuler, measureDistances} from "./compatibility.js";
 import {getGridPositionFromPixels} from "./foundry_fixes.js";
 import {Line} from "./geometry.js";
-import {getColorForDistance} from "./main.js"
 import {trackRays} from "./movement_tracking.js"
 import {recalculate} from "./socket.js";
 import {applyTokenSizeOffset, getSnapPointForEntity, getSnapPointForToken, getTokenShape, highlightTokenShape, zip} from "./util.js";
@@ -229,7 +228,7 @@ export function measure(destination, options={}) {
 	r.clear();
 	let rulerColor
 	if (!options.gridSpaces || canvas.grid.type === CONST.GRID_TYPES.GRIDLESS)
-		rulerColor = getColorForDistance.call(this, totalDistance)
+		rulerColor = this.dragRulerGetColorForDistance(totalDistance);
 	else
 		rulerColor = this.color
 	for (const [s, cs] of zip(segments.reverse(), centeredSegments.reverse())) {
@@ -301,7 +300,7 @@ export function highlightMeasurementNative(ray, startDistance, tokenShape=[{x: 0
 		// Highlight the grid position
 		let [xg, yg] = canvas.grid.grid.getPixelsFromGridPosition(x1, y1);
 		const subDistance = canvas.grid.measureDistances([{ray: new Ray(ray.A, {x: xg, y: yg})}], {gridSpaces: true})[0]
-		const color = dragRuler.getColorForDistance.call(this, startDistance, subDistance)
+		const color = this.dragRulerGetColorForDistance(startDistance + subDistance);
 		const snapPoint = getSnapPointForToken(...canvas.grid.getTopLeft(x, y), this.draggedEntity);
 		const [snapX, snapY] = getGridPositionFromPixels(snapPoint.x + 1, snapPoint.y + 1);
 
@@ -314,7 +313,7 @@ export function highlightMeasurementNative(ray, startDistance, tokenShape=[{x: 0
 			let [x1h, y1h] = canvas.grid.grid.getGridPositionFromPixels(x, y);
 			let [xgh, ygh] = canvas.grid.grid.getPixelsFromGridPosition(x1h, y1h);
 			const subDistance = canvas.grid.measureDistances([{ray: new Ray(ray.A, {x: xgh, y: ygh})}], {gridSpaces: true})[0]
-			const color = dragRuler.getColorForDistance.call(this, startDistance, subDistance)
+			const color = this.dragRulerGetColorForDistance(startDistance + subDistance);
 			const snapPoint = getSnapPointForToken(...canvas.grid.getTopLeft(x, y), this.draggedEntity);
 			const [snapX, snapY] = getGridPositionFromPixels(snapPoint.x + 1, snapPoint.y + 1);
 			highlightTokenShape.call(this, {x: snapX, y: snapY}, tokenShape, color, alpha);

src/main.js

@@ -1,6 +1,6 @@
 "use strict"
 
-import {currentSpeedProvider, getMovedDistanceFromToken, getRangesFromSpeedProvider, getUnreachableColorFromSpeedProvider, initApi, registerModule, registerSystem} from "./api.js"
+import {currentSpeedProvider, getColorForDistanceAndToken, getMovedDistanceFromToken, initApi, registerModule, registerSystem} from "./api.js";
 import {checkDependencies, getHexSizeSupportTokenGridCenter} from "./compatibility.js";
 import {moveEntities, onMouseMove} from "./foundry_imports.js"
 import {performMigrations} from "./migration.js"
@@ -22,7 +22,7 @@ Hooks.once("init", () => {
 	Ruler = DragRulerRuler;
 
 	window.dragRuler = {
-		getColorForDistance,
+		getColorForDistanceAndToken,
 		getMovedDistanceFromToken,
 		registerModule,
 		registerSystem,
@@ -265,29 +265,3 @@ function onEntityDragLeftCancel(event) {
 	}
 	return true
 }
-
-export function getColorForDistance(startDistance, subDistance=0) {
-	if (!this.isDragRuler)
-		return this.color
-	if (!this.draggedEntity.actor) {
-		return this.color;
-	}
-	// Don't apply colors if the current user doesn't have at least observer permissions
-	if (this.draggedEntity.actor.permission < 2) {
-		// If this is a pc and alwaysShowSpeedForPCs is enabled we show the color anyway
-		if (!(this.draggedEntity.actor.data.type === "character" && game.settings.get(settingsKey, "alwaysShowSpeedForPCs")))
-			return this.color
-	}
-	const distance = startDistance + subDistance
-	if (!this.dragRulerRanges)
-		this.dragRulerRanges = getRangesFromSpeedProvider(this.draggedEntity);
-	const ranges = this.dragRulerRanges;
-	if (ranges.length === 0)
-		return this.color
-	const currentRange = ranges.reduce((minRange, currentRange) => {
-		if (distance <= currentRange.range && currentRange.range < minRange.range)
-			return currentRange
-		return minRange
-	}, {range: Infinity, color: getUnreachableColorFromSpeedProvider()})
-	return currentRange.color
-}

src/ruler.js

@@ -1,3 +1,4 @@
+import {getColorForDistanceAndToken, getRangesFromSpeedProvider} from "./api.js";
 import {cancelScheduledMeasurement, measure} from "./foundry_imports.js"
 import {getMovementHistory} from "./movement_tracking.js";
 import {settingsKey} from "./settings.js";
@@ -152,4 +153,21 @@ export class DragRulerRuler extends Ruler {
 			return ray;
 		});
 	}
+
+	dragRulerGetColorForDistance(distance) {
+		if (!this.isDragRuler)
+			return this.color;
+		if (!this.draggedEntity.actor) {
+			return this.color;
+		}
+		// Don't apply colors if the current user doesn't have at least observer permissions
+		if (this.draggedEntity.actor.permission < 2) {
+			// If this is a pc and alwaysShowSpeedForPCs is enabled we show the color anyway
+			if (!(this.draggedEntity.actor.data.type === "character" && game.settings.get(settingsKey, "alwaysShowSpeedForPCs")))
+				return this.color;
+		}
+		if (!this.dragRulerRanges)
+			this.dragRulerRanges = getRangesFromSpeedProvider(this.draggedEntity);
+		return getColorForDistanceAndToken(distance, this.draggedEntity, this.dragRulerRanges);
+	}
 }