Add support for gridless pathfinding

2022-02-15 17:56:08 +01:00
parent ad3fdf4d18
commit fb702cd850
31 changed files with 1146 additions and 24 deletions
@@ -0,0 +1,89 @@
+import {getCostFromSpeedProvider} from "./api.js";
+import {settingsKey} from "./settings.js";
+import {getAreaFromPositionAndShape, highlightTokenShape} from "./util.js";
+
+export function getHexSizeSupportTokenGridCenter(token) {
+	const tokenCenterOffset = CONFIG.hexSizeSupport.getCenterOffset(token)
+	return {x: token.x + tokenCenterOffset.x, y: token.y + tokenCenterOffset.y}
+}
+
+export function highlightMeasurementTerrainRuler(ray, startDistance, tokenShape=[{x: 0, y: 0}], alpha=1) {
+	for (const space of ray.terrainRulerVisitedSpaces.reverse()) {
+		const color = this.dragRulerGetColorForDistance(startDistance + space.distance);
+		highlightTokenShape.call(this, space, tokenShape, color, alpha)
+	}
+}
+
+export function measureDistances(segments, entity, shape, options={}) {
+	const opts = duplicate(options)
+	if (canvas.grid.diagonalRule === "EUCL") {
+		opts.ignoreGrid = true;
+		opts.gridSpaes = false;
+	}
+	if (opts.enableTerrainRuler) {
+		opts.gridSpaces = true;
+		const firstNewSegmentIndex = segments.findIndex(segment => !segment.ray.dragRulerVisitedSpaces);
+		const previousSegments = segments.slice(0, firstNewSegmentIndex);
+		const newSegments = segments.slice(firstNewSegmentIndex);
+		const distances = previousSegments.map(segment => segment.ray.dragRulerVisitedSpaces[segment.ray.dragRulerVisitedSpaces.length - 1].distance);
+		previousSegments.forEach(segment => segment.ray.terrainRulerVisitedSpaces = duplicate(segment.ray.dragRulerVisitedSpaces));
+		opts.costFunction = (x, y, costOptions={}) => {	return getCostFromSpeedProvider(entity, getAreaFromPositionAndShape({x, y}, shape), costOptions); }
+		if (previousSegments.length > 0)
+			opts.terrainRulerInitialState = previousSegments[previousSegments.length - 1].ray.dragRulerFinalState;
+		return distances.concat(terrainRuler.measureDistances(newSegments, opts));
+	}
+	else {
+		// If another module wants to enable grid measurements but disable grid highlighting,
+		// manually set the *duplicate* option's gridSpaces value to true for the Foundry logic to work properly
+		if(!opts.ignoreGrid) {
+			opts.gridSpaces = true;
+		}
+		return canvas.grid.measureDistances(segments, opts);
+	}
+}
+
+export function checkDependencies() {
+	if (!game.modules.get("socketlib")?.active) {
+		console.error("Drag Ruler | The `socketlib` module isn't enabled, but it's required for Drag Ruler to operate properly.");
+		if (game.user.isGM) {
+			new Dialog({
+				title: game.i18n.localize("drag-ruler.dependencies.socketlib.title"),
+				content: `<h2>${game.i18n.localize("drag-ruler.dependencies.socketlib.title")}</h2><p>${game.i18n.localize("drag-ruler.dependencies.socketlib.text")}</p>`,
+				buttons: {
+					ok: {
+						icon: '<i class="fas fa-check"></i>',
+						label: game.i18n.localize("drag-ruler.dependencies.ok")
+					}
+				},
+			}).render(true);
+		}
+	}
+	else if (!game.modules.get("terrain-ruler")?.active && game.user.isGM && !game.settings.get(settingsKey, "neverShowTerrainRulerHint")) {
+		const lastHint = game.settings.get(settingsKey, "lastTerrainRulerHintTime");
+		if (Date.now() - lastHint > 604800000) { // One week
+			let enabledTerrainModule;
+			if (game.modules.get("enhanced-terrain-layer")?.active) {
+				enabledTerrainModule = game.modules.get("enhanced-terrain-layer").data.title;
+			}
+			if (enabledTerrainModule) {
+				new Dialog({
+					title: game.i18n.localize("drag-ruler.dependencies.terrain-ruler.title"),
+					content: `<h2>${game.i18n.localize("drag-ruler.dependencies.terrain-ruler.title")}</h2><p>${game.i18n.format("drag-ruler.dependencies.terrain-ruler.text", {moduleName: enabledTerrainModule})}</p>`,
+					buttons: {
+						ok: {
+							icon: '<i class="fas fa-check"></i>',
+							label: game.i18n.localize("drag-ruler.dependencies.ok"),
+							callback: () => game.settings.set(settingsKey, "lastTerrainRulerHintTime", Date.now()),
+						},
+						neverShowAgain: {
+							icon: '<i class="fas fa-times"></i>',
+							label: game.i18n.localize("drag-ruler.dependencies.terrain-ruler.neverShowAgain"),
+							callback: () => game.settings.set(settingsKey, "neverShowTerrainRulerHint", true),
+						}
+					},
+					close: () => game.settings.set(settingsKey, "lastTerrainRulerHintTime", Date.now())
+				}).render(true);
+			}
+		}
+	}
+}