180 lines
5.1 KiB
TypeScript
180 lines
5.1 KiB
TypeScript
class GameState {
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public readonly config: GameConfig;
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public onResourceClick: Array<() => void> = [];
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public logger: ILogger | null = null;
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public now = 0;
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private readonly _versionMaj = 0;
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private readonly _versionMin = 1;
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private _timeSinceSave = 0;
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private readonly _timeBetweenSaves = 10000;
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private _resources: { [key in ResourceKey]?: IResource } = { };
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private readonly _resourceKeys: ResourceKey[] = [];
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constructor (config: GameConfig) {
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this.config = config;
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}
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public get resource (): { [key in ResourceKey]?: IResource } {
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return this._resources;
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}
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public get resources (): ResourceKey[] {
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return this._resourceKeys;
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}
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public addResource (key: ResourceKey, resource: IResource): void {
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this._resourceKeys.push(key);
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this._resources[key] = resource;
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}
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public advance (time: number): void {
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this.now = new Date().getTime();
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this._timeSinceSave += time;
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if (this._timeSinceSave >= this._timeBetweenSaves) {
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this.save();
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this._timeSinceSave = 0;
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}
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// advance each resource
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for (const rkey of this._resourceKeys) {
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const resource = this._resources[rkey];
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if (resource?.isUnlocked(this) === true) {
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if (resource.advanceAction !== undefined)
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resource.advanceAction(time, this);
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}
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}
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// perform auto increments
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for (const rkey of this._resourceKeys) {
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const resource = this._resources[rkey];
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if (resource === undefined || !resource.isUnlocked(this)) continue;
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if (resource.inc !== undefined && (resource.max === undefined
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|| resource.value < resource.max(this))) {
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resource.addValue(resource.inc(this) * time / 1000, this);
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}
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if (resource.max !== undefined && resource.value > resource.max(this)) {
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resource.addValue((resource.value - resource.max(this)) * -1, this);
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}
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if (resource.value < 0) {
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resource.addValue(resource.value * -1, this);
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}
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}
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}
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public performClick (resourceKey: ResourceKey): void {
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const resource = this._resources[resourceKey];
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if (resource === undefined || !resource.isUnlocked(this)) return;
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if (resource.clickAction !== undefined) {
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resource.clickAction(this);
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for (const callback of this.onResourceClick) {
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callback();
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}
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}
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}
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public deductCost (cost: ResourceNumber | null): boolean {
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if (cost === null) return true;
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if (!this.isPurchasable(cost)) return false;
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for (const key in cost) {
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const rkey = <ResourceKey>key;
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const resource = this._resources[rkey];
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const resCost = cost[rkey];
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if (resource === undefined || resCost === undefined) continue;
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resource.addValue(resCost * -1, this);
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}
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return true;
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}
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public isPurchasable (cost?: ResourceNumber): boolean {
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if (cost === undefined) return true;
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for (const key in cost) {
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const rkey = <ResourceKey>key;
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if ((this._resources[rkey]?.value ?? 0) < (cost[rkey] ?? 0)) {
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return false;
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}
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}
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return true;
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}
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public log (text: string): void {
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if (this.logger !== null) {
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this.logger.msg(text);
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}
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}
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public save (): void {
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const saveObj: SaveData = {};
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saveObj.version = {
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maj: this._versionMaj,
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min: this._versionMin,
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};
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for (const key in this._resources) {
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const rkey = <ResourceKey>key;
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const resource = this._resources[rkey];
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if (resource === undefined) continue;
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saveObj[rkey] = {
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value: resource.value,
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cost: resource.cost,
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};
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}
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const saveStr: string = btoa(JSON.stringify(saveObj));
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localStorage.setItem('savegame', saveStr);
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}
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public load (): void {
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const saveStr: string | null = localStorage.getItem('savegame');
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if (saveStr !== null) {
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try {
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const saveObj: SaveData = <SaveData>JSON.parse(atob(saveStr));
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if (this._versionMaj === saveObj.version?.maj) {
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for (const key in this._resources) {
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const rkey = <ResourceKey>key;
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const saveRes = <{
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value: number;
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cost?: { [key: string]: number };
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} | undefined> saveObj[key];
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if (saveRes !== undefined) {
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// @ts-expect-error writing read-only value from save data
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this._resources[rkey].value = saveRes.value;
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// @ts-expect-error writing read-only cost from save data
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this._resources[rkey].cost = saveRes.cost;
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}
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}
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} else {
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// tslint:disable-next-line
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console.log('The saved game is too old to load.');
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}
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} catch (e: unknown) {
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console.log('There was an error loading the saved game.');
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console.log(e);
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}
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} else {
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console.log('No save game was found.');
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}
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}
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public reset (): void {
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const newState: GameState = this.config.generateState();
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localStorage.clear();
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this._resources = newState._resources;
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this.log('Reset all game resources.');
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}
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}
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type SaveData = {
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[key: string]: {
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value: number;
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cost?: { [key: string]: number };
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} | { maj: number, min: number } | undefined;
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version?: { maj: number, min: number };
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};
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