dice-roller/src/ts/rollstats.ts

import { Asphodice } from "./asphodice"
import { Outcomes } from "./asphodice"
import { DiceResult } from "./asphodice"

interface ItemCount {
	item: string | number | Outcomes;
	count: number;
}


declare let ItemCountSet: Array<ItemCount>;
type EnumObject<T extends string> = { [K in T]?: number };
type outcomeCountObject = EnumObject<Outcomes>;

/**
 * Singleton-type class for all dice-statistic related needs
 */
export class RollStats {
	rerollCounts: { [rerolled: string]: number } = {};
	totalCounts: { [total: string]: number } = {};
	balanceCounts: { [balance: string]: number } = {};
	outcomeCounts: outcomeCountObject = {};
	diceCounts: { [dice: string]: number} = {};

	numRolls = 100000;
	maxDice = 10;
	numDice = 4;

	constructor() {
		this.resetCounts();
	}

	resetCounts(): void {
		// TODO: find out if there's a way to this
		// by iterating over members
		this.rerollCounts = { "true": 0, "false": 0 };
		this.totalCounts = {};
		this.balanceCounts = {};
		this.outcomeCounts = { [Outcomes.Success]: 0, [Outcomes.Fail]: 0 } // TODO: others
		for (let i = 1; i <= 10; i++) {
			this.diceCounts[String(i)] = 0;
		}
	}

	doRolls(): void {
		let asphodice = new Asphodice();
		// count rerolls, totals and outcome balances

		for (let i = 0; i < this.numRolls; i++) {
			let result = asphodice.roll(this.numDice)

			if (result.reroll) {
				this.rerollCounts.true += 1;
			} else {
				this.rerollCounts.false += 1;
			}

			let total = String(result.total);
			if (total in this.totalCounts) {
				this.totalCounts[total]++;
			} else {
				this.totalCounts[total] = 1;
			}

			let balance = String(result.balance);
			if (balance in this.balanceCounts) {
				this.balanceCounts[balance]++;
			} else {
				this.balanceCounts[balance] = 1;
			}

			if (result.outcome == Outcomes.Success) {
				let count = this.outcomeCounts[Outcomes.Success];
				this.outcomeCounts[Outcomes.Success] = Number(count) + 1;
			} else if (result.outcome == Outcomes.Fail) {
				let count = this.outcomeCounts[Outcomes.Fail];
				this.outcomeCounts[Outcomes.Fail] = Number(count) + 1;
			} // TODO: crits, once those are implemented

			for (let die of result.dice) {
				this.diceCounts[String(die)] += 1;
			}

		}
	}

	reportRolls(): string {
		var report = "";

		return report;
	}
}

let rollstats = new RollStats();
rollstats.doRolls();
console.log(rollstats);