184 lines
6.8 KiB
TypeScript
184 lines
6.8 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import { MAX_ZOOM, MIN_ZOOM } from "../src/map/camera";
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import {
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backgroundRect,
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decorate,
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layoutScene,
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polar,
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spriteScale,
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type SceneLayout,
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} from "../src/map/layout";
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import { buildScene } from "../src/map/scene";
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import { mapStyle } from "../src/map/style";
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import { samplePlayerState } from "./render";
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const viewports = [
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{ width: 390, height: 700 },
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{ width: 1280, height: 720 },
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{ width: 2560, height: 1440 },
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{ width: 320, height: 2000 },
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];
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const pans = [-50_000, -800, -1, 0, 3, 640, 50_000];
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const zooms = [MIN_ZOOM, 0.75, 1, 3, 12, MAX_ZOOM];
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const images = [
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{ width: 1254, height: 1254 },
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{ width: 2048, height: 1024 },
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];
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describe("background placement (decision 0.5.40)", () => {
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it("always fully contains the viewport", () => {
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for (const view of viewports) {
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for (const image of images) {
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for (const panX of pans) {
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for (const panY of pans) {
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for (const zoom of zooms) {
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const r = backgroundRect(view, { zoom, panX, panY }, image);
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const where = JSON.stringify({ view, image, panX, panY, zoom, r });
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expect(r.x, where).toBeLessThanOrEqual(0);
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expect(r.y, where).toBeLessThanOrEqual(0);
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expect(r.x + r.width, where).toBeGreaterThanOrEqual(view.width - 1e-9);
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expect(r.y + r.height, where).toBeGreaterThanOrEqual(view.height - 1e-9);
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}
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}
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}
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}
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}
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});
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it("moves a fraction of the pan (parallax) and keeps its aspect ratio", () => {
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const view = { width: 1280, height: 720 };
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const image = { width: 1254, height: 1254 };
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const still = backgroundRect(view, { zoom: 1, panX: 0, panY: 0 }, image);
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const panned = backgroundRect(view, { zoom: 1, panX: 100, panY: -60 }, image);
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expect(panned.x - still.x).toBeCloseTo(15);
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expect(panned.y - still.y).toBeCloseTo(-9);
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expect(still.width / still.height).toBeCloseTo(1);
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});
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it("zooms only slightly with the map", () => {
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const view = { width: 1280, height: 720 };
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const image = { width: 1254, height: 1254 };
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const one = backgroundRect(view, { zoom: 1, panX: 0, panY: 0 }, image);
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const far = backgroundRect(view, { zoom: MAX_ZOOM, panX: 0, panY: 0 }, image);
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expect(far.width / one.width).toBeGreaterThan(1);
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expect(far.width / one.width).toBeLessThan(1.3);
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});
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});
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const dates = [
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Date.parse("2100-01-01T00:00:00Z"),
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Date.parse("2100-03-17T08:00:00Z"),
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Date.parse("2101-11-02T19:30:00Z"),
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];
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const view = { width: 390, height: 700 };
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const cameraAt = (zoom: number) => ({ zoom, panX: 13, panY: -27 });
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describe("bodies on screen (decisions 0.5.38, 0.5.39)", () => {
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it("keeps the sprite scale within the configured limits at extreme zooms", () => {
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const { min, max } = mapStyle.spriteScale;
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for (const zoom of [1e-6, MIN_ZOOM, 0.75, 1, 2, MAX_ZOOM, 1e6]) {
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expect(spriteScale(zoom)).toBeGreaterThanOrEqual(min);
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expect(spriteScale(zoom)).toBeLessThanOrEqual(max);
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}
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expect(spriteScale(1e-6)).toBe(min);
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expect(spriteScale(1e6)).toBe(max);
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expect(spriteScale(1)).toBe(1);
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});
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it("puts the Moon exactly the configured offset from Earth, at any zoom and date", () => {
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const { distancePx, angleDeg } = mapStyle.childOffsets.moon!;
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for (const now of dates) {
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const scene = buildScene(samplePlayerState(), now);
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for (const zoom of [MIN_ZOOM, 1, 7, MAX_ZOOM]) {
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const layout = layoutScene(scene, view, cameraAt(zoom));
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const earth = layout.locations.find((l) => l.id === "earth")!;
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const moon = layout.locations.find((l) => l.id === "moon")!;
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// The angle is measured from the outward direction, Sun → Earth.
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const outward =
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(Math.atan2(earth.center.y - layout.sun.center.y, earth.center.x - layout.sun.center.x) *
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180) /
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Math.PI;
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const offset = polar(distancePx, outward + angleDeg);
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expect(moon.center.x - earth.center.x).toBeCloseTo(offset.x, 9);
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expect(moon.center.y - earth.center.y).toBeCloseTo(offset.y, 9);
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// And the two sprites never overlap.
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expect(Math.hypot(offset.x, offset.y)).toBeGreaterThanOrEqual((earth.size + moon.size) / 2);
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}
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}
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});
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it("starts and ends Moon routes where the Moon is drawn", () => {
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const now = dates[0]!;
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const state = samplePlayerState({
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activeDispatches: [
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{
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id: "d",
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shipId: "loaner",
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pilotId: "avatar",
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contract: null,
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originId: "earth",
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destinationId: "moon",
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tutorial: true,
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departureAt: now,
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arrivalAt: now + 60_000,
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distanceMillionKm: 0.4,
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fuelCost: 0,
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fuelBurnedFu: 0,
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expectedPayout: 0,
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seed: 1,
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status: "in-flight",
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resolvedAt: null,
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},
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],
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});
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const layout = layoutScene(buildScene(state, now + 60_000), view, cameraAt(1));
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const moon = layout.locations.find((l) => l.id === "moon")!;
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expect(layout.flights[0]!.to.x).toBeCloseTo(moon.center.x, 6);
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expect(layout.flights[0]!.to.y).toBeCloseTo(moon.center.y, 6);
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});
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it("never makes a tap target smaller than the minimum", () => {
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const scene = buildScene(samplePlayerState(), dates[0]!);
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for (const zoom of [1e-6, MIN_ZOOM, 1, MAX_ZOOM]) {
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const layout = layoutScene(scene, view, cameraAt(zoom));
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for (const item of [layout.sun, ...layout.locations, ...layout.flights]) {
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expect(item.tap).toBeGreaterThanOrEqual(mapStyle.minTapPx);
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expect(item.tap).toBeGreaterThanOrEqual(item.size);
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}
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}
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});
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});
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describe("labels and badges (Step 10C.6)", () => {
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const body = (id: string, x: number, y: number, size = 32) => ({
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id,
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center: { x, y },
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size,
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tap: 44,
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});
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const layout = (locations: ReturnType<typeof body>[]): SceneLayout => ({
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scale: 1,
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sun: { center: { x: -1000, y: -1000 }, size: 64, tap: 64 },
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locations,
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flights: [],
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});
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const size = () => ({ width: 60, height: 14 });
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it("puts a label below its body when that is clear", () => {
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const placed = decorate(layout([body("a", 100, 100)]), size);
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expect(placed.get("a")!.label).toEqual({ x: 100, y: 120, anchorY: 0 });
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});
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it("moves a label above its body when below would cover another body", () => {
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const placed = decorate(layout([body("a", 100, 100), body("b", 110, 140)]), size);
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expect(placed.get("a")!.label).toEqual({ x: 100, y: 80, anchorY: 1 });
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});
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it("puts the idle badge on a diagonal clear of other bodies", () => {
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// The default spot (up-left) is taken by another body.
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const placed = decorate(layout([body("a", 100, 100), body("b", 70, 70)]), size);
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const badge = placed.get("a")!.badge;
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expect(Math.hypot(badge.x - 70, badge.y - 70)).toBeGreaterThan(24);
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});
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});
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