53 lines
1.3 KiB
TypeScript
53 lines
1.3 KiB
TypeScript
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import { reqs, type Reqs } from "$lib/shipDux/reqs";
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import Updux, { createPayloadAction } from "updux";
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import u from "@yanick/updeep-remeda";
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import { createSelector } from "reselect";
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import prepare from "immer";
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type Layer = number;
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const initialState = {
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reqs,
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layers: [] as Layer[],
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};
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const setNbrArmorLayers = createPayloadAction<number>("setNbrArmorLayers");
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const setArmorRating = createPayloadAction(
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"setArmorRating",
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(id: number, rating: number) => ({ index: id - 1, rating })
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);
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export const armorDux = new Updux({
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initialState,
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actions: { setNbrArmorLayers, setArmorRating },
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});
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armorDux.addMutation(setArmorRating, ({ index, rating }) =>
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prepare((state) => {
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state.layers[index] = rating;
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state.reqs = calcArmorReqs(state.layers);
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})
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);
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armorDux.addMutation(setNbrArmorLayers, (nbrLayers) =>
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prepare((state) => {
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while (state.layers.length > nbrLayers) {
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state.layers.pop();
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}
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while (state.layers.length < nbrLayers) {
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state.layers.push(0);
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}
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state.reqs = calcArmorReqs(state.layers);
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})
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);
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function calcArmorReqs(layers: Layer[]): Reqs {
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const mass = 2 * layers.reduce((a, b) => a + b, 0);
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const cost = 2 * layers.map((v, k) => v * (k + 1)).reduce((a, b) => a + b, 0);
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return {
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mass,
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cost,
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};
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}
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