updating buff and debuff icons. separated COA classes from WoW classes on the character creation screen

src/game/playerJump.test.ts

@@ -0,0 +1,66 @@
+import { describe, expect, it } from "vitest";
+import {
+  PLAYER_GROUND_MIN_NORMAL_Y,
+  PLAYER_JUMP_BUFFER_MS,
+  PLAYER_JUMP_COYOTE_MS,
+  bufferPlayerJump,
+  cancelBufferedPlayerJump,
+  characterVerticalMotion,
+  createPlayerJumpTiming,
+  isWalkableGroundHit,
+  updatePlayerJumpTiming,
+} from "./playerJump";
+
+describe("player jump timing", () => {
+  it("accepts only a nearby upward-facing ground hit", () => {
+    expect(isWalkableGroundHit({
+      timeOfImpact: 0.9,
+      normal: { y: PLAYER_GROUND_MIN_NORMAL_Y },
+    }, 0.95)).toBe(true);
+    expect(isWalkableGroundHit({ timeOfImpact: 0.96, normal: { y: 1 } }, 0.95)).toBe(false);
+    expect(isWalkableGroundHit({ timeOfImpact: 0.4, normal: { y: 0.2 } }, 0.95)).toBe(false);
+  });
+
+  it("buffers a press shortly before landing", () => {
+    const timing = createPlayerJumpTiming();
+    bufferPlayerJump(timing, 1_000);
+    expect(updatePlayerJumpTiming(timing, 1_000 + PLAYER_JUMP_BUFFER_MS - 1, true, -2)).toBe(true);
+  });
+
+  it("allows coyote time after leaving a ledge", () => {
+    const timing = createPlayerJumpTiming(2_000);
+    bufferPlayerJump(timing, 2_000 + PLAYER_JUMP_COYOTE_MS - 1);
+    expect(updatePlayerJumpTiming(
+      timing,
+      2_000 + PLAYER_JUMP_COYOTE_MS - 1,
+      false,
+      -0.2,
+    )).toBe(true);
+  });
+
+  it("cancels buffered input while gameplay is blocked", () => {
+    const timing = createPlayerJumpTiming(2_500);
+    bufferPlayerJump(timing, 2_500);
+    cancelBufferedPlayerJump(timing);
+    expect(updatePlayerJumpTiming(timing, 2_500, true, 0)).toBe(false);
+  });
+
+  it("does not double jump until a real landing", () => {
+    const timing = createPlayerJumpTiming(3_000);
+    bufferPlayerJump(timing, 3_000);
+    expect(updatePlayerJumpTiming(timing, 3_000, true, 0)).toBe(true);
+
+    bufferPlayerJump(timing, 3_040);
+    expect(updatePlayerJumpTiming(timing, 3_040, true, 6.2)).toBe(false);
+    expect(updatePlayerJumpTiming(timing, 3_300, false, -2)).toBe(false);
+    bufferPlayerJump(timing, 3_550);
+    expect(updatePlayerJumpTiming(timing, 3_600, true, -1)).toBe(true);
+  });
+
+  it("reports rising, falling, landing, and grounded presentation phases", () => {
+    expect(characterVerticalMotion(false, 2, 100, 0)).toBe("rising");
+    expect(characterVerticalMotion(false, -0.1, 100, 0)).toBe("falling");
+    expect(characterVerticalMotion(true, 0, 100, 150)).toBe("landing");
+    expect(characterVerticalMotion(true, 0, 150, 150)).toBe("grounded");
+  });
+});