From 83ba178ead115c9c984a13d021d7d6e131c4fa2b Mon Sep 17 00:00:00 2001 From: angelTomo9 <144371630+angelTomo9@users.noreply.github.com> Date: Sun, 6 Sep 2026 06:01:53 +0200 Subject: [PATCH] feat(leathercraft): ancient runic leather horse crupper bench engine --- .../ancientRunicLeatherHorseCrupperBench.ts | 261 ++++++++++++++++++ ...cientRunicLeatherHorseCrupperBench.test.ts | 154 +++++++++++ 2 files changed, 415 insertions(+) create mode 100644 api/src/lib/ancientRunicLeatherHorseCrupperBench.ts create mode 100644 api/src/tests/ancientRunicLeatherHorseCrupperBench.test.ts diff --git a/api/src/lib/ancientRunicLeatherHorseCrupperBench.ts b/api/src/lib/ancientRunicLeatherHorseCrupperBench.ts new file mode 100644 index 00000000..cfa9a5dc --- /dev/null +++ b/api/src/lib/ancientRunicLeatherHorseCrupperBench.ts @@ -0,0 +1,261 @@ +import crypto from "node:crypto"; + +/** + * Ancient Runic Leather Horse Crupper Bench, Mithril Tail Dock Rig & Celestial Valkyrie Crupper Sanctum Engine for OpenAO MMORPG. + * Simulates equestrian crupper crafting benches and tail-dock tension rigs (Elder Crupper Bench, Runic Oak Crupper Rig, Celestial Void Valkyrie Crupper Sanctum), + * raw tanned stallion crupper straps and tempered mithril crupper dock ring sets (Tanned Stallion Crupper Strap, Tempered Mithril Crupper Dock Ring, Celestial Void Astral Crupper Pelt), + * novice expedition cruppers and sovereign aerial crupper recipes (Novice Expedition Crupper, Warmaster Mithril Reinforced Crupper, Celestial Void Valkyrie Sovereign Crupper), + * independent steed downhill-saddle retention ratings and tail dock comfort ratings (scaled across catalog baselines ~16% to 100%), calibrated clamped downhill saddle retention bonus and tail dock comfort scaling, + * upfront leather material deduction on all craft attempts, consistent remainingProvidedLeathers return shapes across all paths, immutable bench cloning for safe rollbacks on both craft and maintain operations, cached static catalog maxima, crypto-secure default gameplay rolls strictly in [0, 1), authoritative catalog power ratio without dead instance fields, and horse crupper bench maintenance. + */ + +export type CrupperBenchType = "ELDER_CRUPPER_BENCH" | "RUNIC_OAK_CRUPPER_RIG" | "CELESTIAL_VOID_VALKYRIE_CRUPPER_SANCTUM"; +export type RawLeatherCrupperType = "TANNED_STALLION_CRUPPER_STRAP" | "TEMPERED_MITHRIL_CRUPPER_DOCK_RING" | "CELESTIAL_VOID_ASTRAL_CRUPPER_PELT"; +export type CrupperRecipeType = "NOVICE_EXPEDITION_CRUPPER" | "WARMASTER_MITHRIL_REINFORCED_CRUPPER" | "CELESTIAL_VOID_VALKYRIE_SOVEREIGN_CRUPPER"; + +export interface CrupperBenchData { + benchType: CrupperBenchType; + maxDurability: number; + leathercraftPower: number; + baseSuccessRatePercent: number; // 0 to 100 + crupperStabilityBonusPercent: number; +} + +export interface CrupperRecipeData { + recipeType: CrupperRecipeType; + requiredLeatherType: RawLeatherCrupperType; + requiredLeatherCount: number; + baseDownhillSaddleRetentionPercent: number; + baseTailDockComfortPercent: number; +} + +export interface ActiveCrupperBench { + benchId: string; + leatherworkerPlayerId: string; + benchType: CrupperBenchType; + currentDurability: number; + maxDurability: number; + isFunctional: boolean; +} + +export interface CraftedHorseCrupper { + crupperId: string; + recipeType: CrupperRecipeType; + finalDownhillSaddleRetentionPercent: number; + finalTailDockComfortPercent: number; + crupperAnchorStabilityPercent: number; // Scaled rating (clamped 0 to 100%, with catalog bench baselines ~16% to 100%) + consumedLeatherCount: number; + consumedLeatherType: RawLeatherCrupperType; + remainingProvidedLeathers: RawLeatherCrupperType[]; + craftedEpochMs: number; +} + +export const CRUPPER_BENCH_CATALOG: Record = { + ELDER_CRUPPER_BENCH: { benchType: "ELDER_CRUPPER_BENCH", maxDurability: 95, leathercraftPower: 30, baseSuccessRatePercent: 87, crupperStabilityBonusPercent: 14 }, + RUNIC_OAK_CRUPPER_RIG: { benchType: "RUNIC_OAK_CRUPPER_RIG", maxDurability: 200, leathercraftPower: 72, baseSuccessRatePercent: 94, crupperStabilityBonusPercent: 24 }, + CELESTIAL_VOID_VALKYRIE_CRUPPER_SANCTUM: { benchType: "CELESTIAL_VOID_VALKYRIE_CRUPPER_SANCTUM", maxDurability: 350, leathercraftPower: 130, baseSuccessRatePercent: 99, crupperStabilityBonusPercent: 40 }, +}; + +export const CRUPPER_RECIPE_CATALOG: Record = { + NOVICE_EXPEDITION_CRUPPER: { recipeType: "NOVICE_EXPEDITION_CRUPPER", requiredLeatherType: "TANNED_STALLION_CRUPPER_STRAP", requiredLeatherCount: 2, baseDownhillSaddleRetentionPercent: 24, baseTailDockComfortPercent: 14 }, + WARMASTER_MITHRIL_REINFORCED_CRUPPER: { recipeType: "WARMASTER_MITHRIL_REINFORCED_CRUPPER", requiredLeatherType: "TEMPERED_MITHRIL_CRUPPER_DOCK_RING", requiredLeatherCount: 2, baseDownhillSaddleRetentionPercent: 50, baseTailDockComfortPercent: 30 }, + CELESTIAL_VOID_VALKYRIE_SOVEREIGN_CRUPPER: { recipeType: "CELESTIAL_VOID_VALKYRIE_SOVEREIGN_CRUPPER", requiredLeatherType: "CELESTIAL_VOID_ASTRAL_CRUPPER_PELT", requiredLeatherCount: 2, baseDownhillSaddleRetentionPercent: 84, baseTailDockComfortPercent: 64 }, +}; + +export class AncientRunicLeatherHorseCrupperBenchEngine { + public static readonly DURABILITY_COST_PER_CRAFT = 10; + + /** + * Cached static catalog maxima to prevent runtime array reallocation. + */ + public static readonly CATALOG_MAXIMA = { + maxPower: Math.max(...Object.values(CRUPPER_BENCH_CATALOG).map(b => b.leathercraftPower), 1), + maxBonus: Math.max(...Object.values(CRUPPER_BENCH_CATALOG).map(b => b.crupperStabilityBonusPercent), 1), + }; + + /** + * Generates a crypto-secure UUID or 128-bit hex string using node:crypto. + */ + private static generateSecureId(): string { + if (typeof crypto.randomUUID === "function") { + return crypto.randomUUID(); + } + return crypto.randomBytes(16).toString("hex"); + } + + /** + * Generates a cryptographically secure random float strictly in [0, 1). + */ + public static generateSecureRoll(): number { + if (typeof crypto.randomInt === "function") { + return crypto.randomInt(0, 1000000) / 1000000; + } + return crypto.randomBytes(4).readUInt32LE(0) / 0x100000000; + } + + /** + * Constructs and initializes a horse crupper crafting bench or tail-dock tension rig. + */ + public static constructBench( + leatherworkerPlayerId: string, + benchType: CrupperBenchType + ): ActiveCrupperBench { + const data = CRUPPER_BENCH_CATALOG[benchType]; + if (!data) { + throw new Error(`Unsupported horse crupper bench type: ${String(benchType)}`); + } + + const uuid = this.generateSecureId(); + + return { + benchId: `bench_${benchType.toLowerCase()}_${uuid}`, + leatherworkerPlayerId, + benchType, + currentDurability: data.maxDurability, + maxDurability: data.maxDurability, + isFunctional: true, + }; + } + + /** + * Stitches and tensions crupper straps and tempered mithril dock rings into horse cruppers. + * Returns an updated clone of `bench` leaving the input instance immutable. + */ + public static craftCrupper( + bench: ActiveCrupperBench, + recipeType: CrupperRecipeType, + providedLeathers: RawLeatherCrupperType[], + craftRoll?: number, + stabilityRoll?: number, + currentEpochMs = Date.now() + ): { success: boolean; crupper?: CraftedHorseCrupper; updatedBench?: ActiveCrupperBench; remainingDurability: number; remainingProvidedLeathers: RawLeatherCrupperType[]; reason?: string } { + const fallbackLeathers = Array.isArray(providedLeathers) ? [...providedLeathers] : []; + + if (!bench || !bench.isFunctional || bench.currentDurability < this.DURABILITY_COST_PER_CRAFT) { + return { + success: false, + updatedBench: bench ? { ...bench } : undefined, + remainingDurability: bench?.currentDurability ?? 0, + remainingProvidedLeathers: fallbackLeathers, + reason: `Horse crupper bench is warped or lacks durability (requires ${this.DURABILITY_COST_PER_CRAFT}).`, + }; + } + + const benchData = CRUPPER_BENCH_CATALOG[bench.benchType]; + if (!benchData) { + return { success: false, updatedBench: { ...bench }, remainingDurability: bench.currentDurability, remainingProvidedLeathers: fallbackLeathers, reason: `Unknown bench model: ${String(bench.benchType)}` }; + } + + const recipe = CRUPPER_RECIPE_CATALOG[recipeType]; + if (!recipe) { + return { success: false, updatedBench: { ...bench }, remainingDurability: bench.currentDurability, remainingProvidedLeathers: fallbackLeathers, reason: `Unknown horse crupper recipe: ${String(recipeType)}` }; + } + + if (!Array.isArray(providedLeathers)) { + return { success: false, updatedBench: { ...bench }, remainingDurability: bench.currentDurability, remainingProvidedLeathers: [], reason: "Invalid leathers array." }; + } + + // Count matching leather materials + const matchingCount = providedLeathers.filter(l => l === recipe.requiredLeatherType).length; + if (matchingCount < recipe.requiredLeatherCount) { + return { + success: false, + updatedBench: { ...bench }, + remainingDurability: bench.currentDurability, + remainingProvidedLeathers: fallbackLeathers, + reason: `Insufficient crupper straps/dock rings: requires ${recipe.requiredLeatherCount}x ${recipe.requiredLeatherType}, provided ${matchingCount}.`, + }; + } + + // Create updated bench clone + const updatedBench = { ...bench }; + + // Deduct durability on clone + updatedBench.currentDurability -= this.DURABILITY_COST_PER_CRAFT; + if (updatedBench.currentDurability < this.DURABILITY_COST_PER_CRAFT) { + updatedBench.currentDurability = Math.max(0, updatedBench.currentDurability); + updatedBench.isFunctional = false; + } + + // Deduct materials upfront on all craft attempts + const remaining = [...providedLeathers]; + let removed = 0; + for (let i = remaining.length - 1; i >= 0 && removed < recipe.requiredLeatherCount; i--) { + if (remaining[i] === recipe.requiredLeatherType) { + remaining.splice(i, 1); + removed++; + } + } + + const safeRoll = typeof craftRoll === "number" && Number.isFinite(craftRoll) ? Math.max(0, Math.min(1, craftRoll)) : this.generateSecureRoll(); + const rollPercent = safeRoll * 100; + + if (rollPercent > benchData.baseSuccessRatePercent) { + return { + success: false, + updatedBench, + remainingDurability: updatedBench.currentDurability, + remainingProvidedLeathers: remaining, + reason: `Crupper strap misaligned: mithril dock ring slipped under tension rig, rolled ${rollPercent.toFixed(1)}, needed <= ${benchData.baseSuccessRatePercent}.`, + }; + } + + // Calculate independent crupper anchor stability score dynamically using cached catalog maxima & authoritative catalog values (clamped 0% to 100%) + const { maxPower, maxBonus } = this.CATALOG_MAXIMA; + const safeStabilityRoll = typeof stabilityRoll === "number" && Number.isFinite(stabilityRoll) ? Math.max(0, Math.min(1, stabilityRoll)) : this.generateSecureRoll(); + const powerRatio = Math.min(1.0, benchData.leathercraftPower / maxPower); + const bonusPoints = (benchData.crupperStabilityBonusPercent / maxBonus) * 20; + const stabilityScore = Math.max(0, Math.min(100, Math.round( + (safeStabilityRoll * 40) + (powerRatio * 40) + bonusPoints + ))); + const qualityMultiplier = 0.8 + ((stabilityScore / 100) * 0.4); // 0.8 to 1.2x + + const finalRetention = Math.max(0, Math.min(100, Math.round(recipe.baseDownhillSaddleRetentionPercent * qualityMultiplier))); + const finalComfort = Math.max(0, Math.min(100, Math.round(recipe.baseTailDockComfortPercent * qualityMultiplier))); + + const uuid = this.generateSecureId(); + + const crupper: CraftedHorseCrupper = { + crupperId: `crupper_${recipeType.toLowerCase()}_${uuid}`, + recipeType, + finalDownhillSaddleRetentionPercent: finalRetention, + finalTailDockComfortPercent: finalComfort, + crupperAnchorStabilityPercent: stabilityScore, + consumedLeatherCount: recipe.requiredLeatherCount, + consumedLeatherType: recipe.requiredLeatherType, + remainingProvidedLeathers: remaining, + craftedEpochMs: currentEpochMs, + }; + + return { + success: true, + crupper, + updatedBench, + remainingDurability: updatedBench.currentDurability, + remainingProvidedLeathers: remaining, + }; + } + + /** + * Cleans equestrian trail grime and maintains horse crupper bench. + * Returns an updated clone of `bench` leaving the input instance immutable. + */ + public static maintainBench( + bench: ActiveCrupperBench, + repairAmount = 50 + ): { success: boolean; updatedBench?: ActiveCrupperBench; newDurability: number; isFunctional: boolean } { + if (!bench) return { success: false, newDurability: 0, isFunctional: false }; + + const updatedBench = { ...bench }; + const amt = Number.isFinite(repairAmount) ? Math.max(0, repairAmount) : 50; + updatedBench.currentDurability = Math.min(updatedBench.maxDurability, updatedBench.currentDurability + amt); + updatedBench.isFunctional = updatedBench.currentDurability >= this.DURABILITY_COST_PER_CRAFT; + + return { + success: true, + updatedBench, + newDurability: updatedBench.currentDurability, + isFunctional: updatedBench.isFunctional, + }; + } +} diff --git a/api/src/tests/ancientRunicLeatherHorseCrupperBench.test.ts b/api/src/tests/ancientRunicLeatherHorseCrupperBench.test.ts new file mode 100644 index 00000000..a4fb1686 --- /dev/null +++ b/api/src/tests/ancientRunicLeatherHorseCrupperBench.test.ts @@ -0,0 +1,154 @@ +import { describe, it, expect } from "vitest"; +import { AncientRunicLeatherHorseCrupperBenchEngine } from "../lib/ancientRunicLeatherHorseCrupperBench"; +import type { ActiveCrupperBench } from "../lib/ancientRunicLeatherHorseCrupperBench"; + +describe("AncientRunicLeatherHorseCrupperBenchEngine Equestrian Crupper Stitching Benches & Rigs", () => { + it("crafts Celestial Void Valkyrie Sovereign Crupper in Crupper Sanctum achieving 100% anchor stability and returns remaining pelts", () => { + const bench = AncientRunicLeatherHorseCrupperBenchEngine.constructBench("leather_01", "CELESTIAL_VOID_VALKYRIE_CRUPPER_SANCTUM"); + expect(bench.benchType).toBe("CELESTIAL_VOID_VALKYRIE_CRUPPER_SANCTUM"); + expect(bench.currentDurability).toBe(350); + + const initialLeathers = [ + "CELESTIAL_VOID_ASTRAL_CRUPPER_PELT", + "CELESTIAL_VOID_ASTRAL_CRUPPER_PELT", + "CELESTIAL_VOID_ASTRAL_CRUPPER_PELT" + ] as any[]; + + const craftRes = AncientRunicLeatherHorseCrupperBenchEngine.craftCrupper( + bench, + "CELESTIAL_VOID_VALKYRIE_SOVEREIGN_CRUPPER", + initialLeathers, + 0.1, // Success roll + 1.0, // Stability roll 1.0 -> 40 + 40 + 20 = 100% + 100000 + ); + + expect(craftRes.success).toBe(true); + expect(craftRes.crupper?.recipeType).toBe("CELESTIAL_VOID_VALKYRIE_SOVEREIGN_CRUPPER"); + expect(craftRes.crupper?.crupperAnchorStabilityPercent).toBe(100); + expect(craftRes.crupper?.finalDownhillSaddleRetentionPercent).toBe(100); // 84 * 1.20 = 100.8 -> clamped to 100% + expect(craftRes.crupper?.finalTailDockComfortPercent).toBe(77); // 64 * 1.20 = 76.8 -> 77% + expect(craftRes.crupper?.consumedLeatherCount).toBe(2); + expect(craftRes.crupper?.consumedLeatherType).toBe("CELESTIAL_VOID_ASTRAL_CRUPPER_PELT"); + expect(craftRes.crupper?.remainingProvidedLeathers.length).toBe(1); + expect(craftRes.remainingDurability).toBe(340); // 350 - 10 + }); + + it("verifies mid-range stability roll and sub-100% quality scaling on Elder crupper bench", () => { + const bench = AncientRunicLeatherHorseCrupperBenchEngine.constructBench("leather_mid", "ELDER_CRUPPER_BENCH"); + // powerRatio = 30/130 = 0.23077, bonusPoints = (14/40)*20 = 7.0 + // safeStabilityRoll = 0.5 -> 0.5 * 40 = 20 + // score = Math.round(20 + 9.23077 + 7.0) = 36 + // qualityMultiplier = 0.8 + (36/100)*0.4 = 0.944 + // finalRetention = Math.round(24 * 0.944) = 23 + // finalComfort = Math.round(14 * 0.944) = 13 + const craftRes = AncientRunicLeatherHorseCrupperBenchEngine.craftCrupper( + bench, + "NOVICE_EXPEDITION_CRUPPER", + ["TANNED_STALLION_CRUPPER_STRAP", "TANNED_STALLION_CRUPPER_STRAP"], + 0.1, + 0.5 + ); + + expect(craftRes.success).toBe(true); + expect(craftRes.crupper?.crupperAnchorStabilityPercent).toBe(36); + expect(craftRes.crupper?.finalDownhillSaddleRetentionPercent).toBe(23); + expect(craftRes.crupper?.finalTailDockComfortPercent).toBe(13); + }); + + it("handles bench becoming non-functional after successful craft when durability falls below threshold", () => { + const bench = AncientRunicLeatherHorseCrupperBenchEngine.constructBench("leather_wear", "ELDER_CRUPPER_BENCH"); + bench.currentDurability = 15; + expect(bench.isFunctional).toBe(true); + + // First craft succeeds: 15 - 10 = 5 (< 10), so isFunctional flips to false in updatedBench + const res1 = AncientRunicLeatherHorseCrupperBenchEngine.craftCrupper( + bench, + "NOVICE_EXPEDITION_CRUPPER", + ["TANNED_STALLION_CRUPPER_STRAP", "TANNED_STALLION_CRUPPER_STRAP"], + 0.1 + ); + expect(res1.success).toBe(true); + expect(res1.remainingDurability).toBe(5); + expect(res1.updatedBench?.isFunctional).toBe(false); + + // Subsequent craft on updated bench is rejected and returns fallback array + const res2 = AncientRunicLeatherHorseCrupperBenchEngine.craftCrupper( + res1.updatedBench!, + "NOVICE_EXPEDITION_CRUPPER", + ["TANNED_STALLION_CRUPPER_STRAP", "TANNED_STALLION_CRUPPER_STRAP"] + ); + expect(res2.success).toBe(false); + expect(res2.reason).toContain("warped or lacks durability"); + expect(res2.remainingProvidedLeathers.length).toBe(2); + }); + + it("rejects crafting when insufficient leather is provided and returns provided leathers", () => { + const bench = AncientRunicLeatherHorseCrupperBenchEngine.constructBench("leather_02", "ELDER_CRUPPER_BENCH"); + + const failRes = AncientRunicLeatherHorseCrupperBenchEngine.craftCrupper( + bench, + "WARMASTER_MITHRIL_REINFORCED_CRUPPER", + ["TEMPERED_MITHRIL_CRUPPER_DOCK_RING"] + ); + + expect(failRes.success).toBe(false); + expect(failRes.reason).toContain("Insufficient crupper straps/dock rings"); + expect(failRes.remainingProvidedLeathers.length).toBe(1); + expect(bench.currentDurability).toBe(95); + }); + + it("handles crupper strap misaligned failure roll consuming durability and leathers", () => { + const bench = AncientRunicLeatherHorseCrupperBenchEngine.constructBench("leather_03", "ELDER_CRUPPER_BENCH"); // 87% success + + const fail = AncientRunicLeatherHorseCrupperBenchEngine.craftCrupper( + bench, + "NOVICE_EXPEDITION_CRUPPER", + ["TANNED_STALLION_CRUPPER_STRAP", "TANNED_STALLION_CRUPPER_STRAP", "TANNED_STALLION_CRUPPER_STRAP"], + 0.95 + ); + + expect(fail.success).toBe(false); + expect(fail.reason).toContain("misaligned"); + expect(fail.remainingProvidedLeathers?.length).toBe(1); // 3 - 2 = 1 remaining + expect(fail.remainingDurability).toBe(85); // 95 - 10 + }); + + it("gates isFunctional in maintainBench based on DURABILITY_COST_PER_CRAFT threshold and returns clone", () => { + const bench = AncientRunicLeatherHorseCrupperBenchEngine.constructBench("leather_04", "ELDER_CRUPPER_BENCH"); + bench.currentDurability = 0; + bench.isFunctional = false; + + // Maintain 5 (below 10 required) -> isFunctional remains false + const repLow = AncientRunicLeatherHorseCrupperBenchEngine.maintainBench(bench, 5); + expect(repLow.success).toBe(true); + expect(repLow.newDurability).toBe(5); + expect(repLow.isFunctional).toBe(false); + expect(bench.currentDurability).toBe(0); // input unchanged + + // Maintain 10 more on clone -> 15 (>= 10) -> isFunctional becomes true + const repHigh = AncientRunicLeatherHorseCrupperBenchEngine.maintainBench(repLow.updatedBench!, 10); + expect(repHigh.success).toBe(true); + expect(repHigh.newDurability).toBe(15); + expect(repHigh.isFunctional).toBe(true); + }); + + it("guards against null inputs and unsupported bench models", () => { + expect(() => AncientRunicLeatherHorseCrupperBenchEngine.constructBench("l", "PLASTIC_BENCH" as any)).toThrow( + "Unsupported horse crupper bench type" + ); + + const invalidBench: ActiveCrupperBench = { + benchId: "bad", + leatherworkerPlayerId: "p", + benchType: "BENCH" as any, + currentDurability: 50, + maxDurability: 50, + isFunctional: true, + }; + + expect(AncientRunicLeatherHorseCrupperBenchEngine.craftCrupper(invalidBench, "NOVICE_EXPEDITION_CRUPPER", ["TANNED_STALLION_CRUPPER_STRAP", "TANNED_STALLION_CRUPPER_STRAP"]).success).toBe(false); + expect(AncientRunicLeatherHorseCrupperBenchEngine.craftCrupper(null as any, "NOVICE_EXPEDITION_CRUPPER", []).success).toBe(false); + expect(AncientRunicLeatherHorseCrupperBenchEngine.maintainBench(null as any).success).toBe(false); + }); +});