Release Healer Man 0.1.16

src/game/arenaRules.test.ts

@@ -0,0 +1,44 @@
+import { describe, expect, it } from "vitest";
+import {
+  arenaAiProfile,
+  arenaDampening,
+  arenaDrDuration,
+  arenaRatingBand,
+  calculateArenaRating,
+  clampArenaRating,
+} from "./arenaRules";
+
+describe("arena rating and difficulty", () => {
+  it("clamps ratings and applies the requested Elo bands", () => {
+    expect(clampArenaRating(-5)).toBe(0);
+    expect(clampArenaRating(2600)).toBe(2500);
+    expect(arenaRatingBand(0)).toMatchObject({ title: "Recruit", k: 64 });
+    expect(arenaRatingBand(2400)).toMatchObject({ title: "Gladiator", k: 20 });
+    expect(calculateArenaRating(0, 0, 1)).toMatchObject({ delta: 32, after: 32 });
+    expect(calculateArenaRating(0, 0, 0)).toMatchObject({ delta: 0, after: 0 });
+    expect(calculateArenaRating(1250, 1250, 0.5)).toMatchObject({ delta: 0, after: 1250 });
+  });
+
+  it("continuously improves bots without removing the error floor", () => {
+    const recruit = arenaAiProfile(0);
+    const rival = arenaAiProfile(1600);
+    const gladiator = arenaAiProfile(2500);
+    expect(rival.reactionMinSeconds).toBeLessThan(recruit.reactionMinSeconds);
+    expect(gladiator.healerInterruptChance).toBe(0.85);
+    expect(gladiator.minimumErrorChance).toBe(0.08);
+  });
+
+  it("starts dampening at ten percent and reaches zero healing at nine minutes", () => {
+    expect(arenaDampening(0)).toBeCloseTo(0.1);
+    expect(arenaDampening(30_000)).toBeCloseTo(0.15);
+    expect(arenaDampening(540_000)).toBe(1);
+  });
+
+  it("uses full, half, quarter, immune DR and resets after fifteen seconds", () => {
+    expect(arenaDrDuration(8_000, 0, 0).durationMs).toBe(8_000);
+    expect(arenaDrDuration(8_000, 1, 0).durationMs).toBe(4_000);
+    expect(arenaDrDuration(8_000, 2, 0).durationMs).toBe(2_000);
+    expect(arenaDrDuration(8_000, 3, 0).durationMs).toBe(0);
+    expect(arenaDrDuration(8_000, 3, 15_000).durationMs).toBe(8_000);
+  });
+});