60 lines
1.7 KiB
TypeScript
60 lines
1.7 KiB
TypeScript
/// <reference path="./IResource.ts" />
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abstract class Purchasable implements IResource {
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public readonly resourceType: ResourceType = ResourceType.consumable;
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public valueInWholeNumbers = true;
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public clickText = 'Purchase';
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public clickDescription = 'Purchase';
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public value = 0;
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public readonly cost: { [key: string]: number } = { };
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public inc: ((state: GameState) => number) | null = null;
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public max: ((_state: GameState) => number) | null = null;
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protected _costMultiplier: { [key: string]: number } = { };
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protected _isUnlocked = false;
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constructor (
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public readonly name: string,
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public readonly description: string
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) { }
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public clickAction (state: GameState): void {
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if (this.max !== null && this.value >= this.max(state)) return;
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if (state.deductCost(this.cost)) {
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const amount: number = this._purchaseAmount(state);
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if (amount > 0) {
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this.value += amount;
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state.log(this._purchaseLog(amount, state));
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for (const rkey of Object.keys(this._costMultiplier)) {
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this.cost[rkey] *= this._costMultiplier[rkey];
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}
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}
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}
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}
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public addValue (amount: number, _state: GameState): void {
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this.value += amount;
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}
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public isUnlocked (state: GameState): boolean {
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if (!this._isUnlocked && state.isPurchasable(this.cost)) {
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this._isUnlocked = true;
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}
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return this._isUnlocked;
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}
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public advanceAction (time: number, state: GameState): void {
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return;
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}
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protected _purchaseAmount (state: GameState): number {
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return 1;
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}
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protected _purchaseLog (amount: number, state: GameState): string {
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return `You purchased ${amount} x ${this.name}.`;
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}
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}
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