sendou.ink/app/features/object-damage-calculator/core/objectDamage.test.ts

import { describe, expect, test } from "vitest";
import type {
	AbilityPoints,
	AnalyzedBuild,
	DamageType,
} from "~/features/build-analyzer";
import { buildStats } from "~/features/build-analyzer";
import type {
	MainWeaponId,
	SpecialWeaponId,
	SubWeaponId,
} from "~/modules/in-game-lists/types";
import {
	exampleMainWeaponIdWithSpecialWeaponId,
	mainWeaponIds,
	specialWeaponIds,
} from "~/modules/in-game-lists/weapon-ids";
import { calculateDamage } from "./objectDamage";

function calculate({
	mainWeaponId = 10,
	subWeaponId,
	specialWeaponId,
	abilityPoints = new Map(),
	damageType = "NORMAL_MAX",
	preAnalyzed,
}: {
	mainWeaponId?: MainWeaponId;
	subWeaponId?: SubWeaponId;
	specialWeaponId?: SpecialWeaponId;
	abilityPoints?: AbilityPoints;
	damageType?: DamageType;
	preAnalyzed?: AnalyzedBuild;
}) {
	const analyzed =
		preAnalyzed ??
		buildStats({
			weaponSplId: mainWeaponId,
			hasTacticooler: false,
		});

	return calculateDamage({
		abilityPoints,
		analyzed,
		anyWeapon:
			typeof subWeaponId === "number"
				? { type: "SUB", id: subWeaponId }
				: typeof specialWeaponId === "number"
					? { type: "SPECIAL", id: specialWeaponId }
					: { type: "MAIN", id: mainWeaponId },
		damageType,
		isMultiShot: true,
	});
}

describe("calculateDamage()", () => {
	// the function throws if weapon resolves to more than one set of damage rates
	// so this test goes through all of them to make sure they all work
	test("Every weapon can calculate damage", () => {
		for (const mainWeaponId of mainWeaponIds) {
			const analyzed = buildStats({
				weaponSplId: mainWeaponId,
				hasTacticooler: false,
			});

			for (const damage of analyzed.stats.damages) {
				calculate({ mainWeaponId, damageType: damage.type });
			}
		}

		const analyzed = buildStats({
			weaponSplId: 0,
			hasTacticooler: false,
		});

		for (const damage of analyzed.stats.subWeaponDefenseDamages) {
			calculate({
				subWeaponId: damage.subWeaponId,
				damageType: damage.type,
				preAnalyzed: analyzed,
			});
		}

		for (const specialWeaponId of specialWeaponIds) {
			const analyzedWithSpecialWeapon = buildStats({
				weaponSplId: exampleMainWeaponIdWithSpecialWeaponId(specialWeaponId),
				hasTacticooler: false,
			});

			for (const damage of analyzedWithSpecialWeapon.stats
				.specialWeaponDamages) {
				calculate({
					specialWeaponId,
					damageType: damage.type,
					preAnalyzed: analyzedWithSpecialWeapon,
				});
			}
		}
	});

	test("BRU increases Splash Wall hitpoints", () => {
		const withoutBRU = calculate({});
		const withBRU = calculate({
			abilityPoints: new Map([["BRU", 10]]),
		});

		const hpWithoutBRU = withoutBRU.find(
			(d) => d.receiver === "Wsb_Shield",
		)?.hitPoints;
		// biome-ignore lint/suspicious/noNonNullAssertedOptionalChain: Biome 2.3.1 upgrade
		const hpWithBRU = withBRU.find((d) => d.receiver === "Wsb_Shield")
			?.hitPoints!;

		expect(typeof hpWithoutBRU).toBe("number");
		expect(typeof hpWithBRU).toBe("number");
		expect(hpWithoutBRU).toBeLessThan(hpWithBRU);
	});

	test("SPU increases Big Bubbler hitpoints", () => {
		const withoutSPU = calculate({});
		const withSPU = calculate({
			abilityPoints: new Map([["SPU", 10]]),
		});

		const hpWithoutSPU = withoutSPU.find(
			(d) => d.receiver === "GreatBarrier_Barrier",
		)?.hitPoints;
		// biome-ignore lint/suspicious/noNonNullAssertedOptionalChain: Biome 2.3.1 upgrade
		const hpWithSPU = withSPU.find((d) => d.receiver === "GreatBarrier_Barrier")
			?.hitPoints!;

		expect(typeof hpWithoutSPU).toBe("number");
		expect(typeof hpWithSPU).toBe("number");
		expect(hpWithoutSPU).toBeLessThan(hpWithSPU);
	});

	const shotsToPopRM: Array<
		[
			weaponId: MainWeaponId,
			damageType: DamageType,
			shotsToPop: number,
			shotsToPopOS: number,
		]
	> = [
		// Splattershot
		[40, "NORMAL_MAX", 28, 26],
		// Range Blaster
		[220, "DIRECT", 5, 4],
		// .96 Gal
		[80, "NORMAL_MAX", 17, 15],
		// Luna Blaster
		[200, "DIRECT", 4, 4],
		// Splat Charger
		[2010, "FULL_CHARGE", 4, 3],
		// E-liter 4K
		[2030, "TAP_SHOT", 13, 12],
		// Hydra Splatling
		[4020, "NORMAL_MAX", 32, 29],
		// Sloshing Machine
		[3020, "DIRECT_MAX", 6, 5],
		// Splat Dualies
		[5010, "NORMAL_MAX", 34, 31],
		// Tenta Brella
		[6010, "NORMAL_MAX", 4, 4],
		// // Tri-Stringer
		[7010, "NORMAL_MAX", 3, 3],
		// REEF-LUX
		[7020, "NORMAL_MIN", 8, 7],
		// Splatana Wiper
		[8010, "SPLATANA_HORIZONTAL", 11, 10],
		// Splatana Wiper
		[8010, "SPLATANA_HORIZONTAL_DIRECT", 9, 8],
		// Splatana Stamper
		[8000, "SPLATANA_VERTICAL_DIRECT", 3, 3],
	];

	test("Calculates matching HTD Rainmaker shield to in-game tests", () => {
		for (const [
			mainWeaponId,
			damageType,
			shotsToPop,
			shotsToPopOS,
		] of shotsToPopRM) {
			const damages = calculate({ mainWeaponId, damageType });

			const damageVsRM = damages.find(
				(d) => d.receiver === "Gachihoko_Barrier",
			)!;

			expect(
				damageVsRM.damages.find((d) => !d.objectShredder)!.hitsToDestroy,
				`Shots to pop wrong for weapon id: ${mainWeaponId}`,
			).toBe(shotsToPop);
			expect(
				damageVsRM.damages.find((d) => d.objectShredder)!.hitsToDestroy,
				`Shots to pop wrong with OS for weapon id: ${mainWeaponId}`,
			).toBe(shotsToPopOS);
		}
	});

	const HYDRA_SPLATLING_ID = 4020;
	test("Hits to destroy Minimum < Maximum < Maximum (Fully charged)", () => {
		const min = calculate({
			mainWeaponId: HYDRA_SPLATLING_ID,
			damageType: "NORMAL_MIN",
		})[0]?.damages[0]?.hitsToDestroy;
		const max = calculate({
			mainWeaponId: HYDRA_SPLATLING_ID,
			damageType: "NORMAL_MAX",
		})[0]?.damages[0]?.hitsToDestroy;
		const maxFullyCharged = calculate({
			mainWeaponId: HYDRA_SPLATLING_ID,
			damageType: "NORMAL_MAX_FULL_CHARGE",
		})[0]?.damages[0]?.hitsToDestroy;

		expect(typeof min).toBe("number");
		expect(typeof max).toBe("number");
		expect(typeof maxFullyCharged).toBe("number");

		expect(min).toBeGreaterThan(max);
		expect(max).toBeGreaterThan(maxFullyCharged);
	});
});