50 lines
1.3 KiB
TypeScript
50 lines
1.3 KiB
TypeScript
import { Cargo, CargoManifest } from './types.ts';
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export type CategorizedCargo = {
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wanted: CargoManifest;
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goods: CargoManifest;
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};
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type Point = {
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x: number;
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y: number;
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};
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// cargo is a ship.cargo object, want is an optional symbol
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export function categorizeCargo(cargo: Cargo, want?: string): CategorizedCargo {
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const wanted = cargo.inventory.filter(i => i.symbol === want || i.symbol === 'ANTIMATTER');
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const goods = cargo.inventory.filter(i => i.symbol !== want && i.symbol !== 'ANTIMATTER');
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const wobj = wanted.reduce(function(acc: CargoManifest, e) {
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acc[e.symbol] = e.units;
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return acc;
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}, {});
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const gobj = goods.reduce(function(acc: CargoManifest, e) {
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acc[e.symbol] = e.units;
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return acc;
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}, {});
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return {wanted: wobj, goods: gobj};
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}
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export function distance(a: Point, b: Point) {
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return Math.sqrt((a.x-b.x)**2 + (a.y-b.y)**2);
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}
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export function sortByDistanceFrom<T extends Point>(a: Point, points: Array<T>): Array<{data: T, distance: number}>{
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let result = points.map(function (m) { return {
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data: m,
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distance: distance(a, m),
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}});
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result.sort(function(a, b) {
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if (a.distance < b.distance) {
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return -1;
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} else if (a.distance > b.distance) {
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return 1;
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}
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return 0;
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});
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return result;
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}
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export function systemFromWaypoint(waypoint: string): string {
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return waypoint.split('-').slice(0,2).join('-');
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}
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