chore(release): 4.4.5 [skip ci]

## [4.4.5](https://github.com/antialias/soroban-abacus-flashcards/compare/v4.4.4...v4.4.5) (2025-10-17)

### Bug Fixes

* **complement-race:** add missing useEffect import ([3054130](30541304dd))

CHANGELOG.md

@@ -1,3 +1,17 @@
+## [4.4.5](https://github.com/antialias/soroban-abacus-flashcards/compare/v4.4.4...v4.4.5) (2025-10-17)
+
+
+### Bug Fixes
+
+* **complement-race:** add missing useEffect import ([3054130](https://github.com/antialias/soroban-abacus-flashcards/commit/30541304dd0f0801860dd62967f7f7cae717bcdd))
+
+## [4.4.4](https://github.com/antialias/soroban-abacus-flashcards/compare/v4.4.3...v4.4.4) (2025-10-17)
+
+
+### Bug Fixes
+
+* **complement-race:** add pressure decay system and improve logging ([66992e8](https://github.com/antialias/soroban-abacus-flashcards/commit/66992e877065a42d00379ef8fae0a6e252b0ffcb))
+
 ## [4.4.3](https://github.com/antialias/soroban-abacus-flashcards/compare/v4.4.2...v4.4.3) (2025-10-17)
 
 

apps/web/src/arcade-games/complement-race/Provider.tsx

@@ -5,7 +5,15 @@
 
 'use client'
 
-import { createContext, useCallback, useContext, useMemo, useState, type ReactNode } from 'react'
+import {
+  createContext,
+  useCallback,
+  useContext,
+  useEffect,
+  useMemo,
+  useState,
+  type ReactNode,
+} from 'react'
 import {
   type GameMove,
   buildPlayerMetadata,
@@ -240,6 +248,9 @@ export function ComplementRaceProvider({ children }: { children: ReactNode }) {
     })
   }, [activePlayers, players])
 
+  // Debug logging ref (track last logged values)
+  const lastLogRef = useState({ key: '', count: 0 })[0]
+
   // Transform multiplayer state to look like single-player state
   const compatibleState = useMemo((): CompatibleGameState => {
     const localPlayer = localPlayerId ? multiplayerState.players[localPlayerId] : null
@@ -306,7 +317,7 @@ export function ComplementRaceProvider({ children }: { children: ReactNode }) {
       // Sprint mode specific
       momentum: localPlayer?.momentum || 0,
       trainPosition: localPlayer?.position || 0,
-      pressure: localPlayer?.momentum ? Math.min(100, localPlayer.momentum + 10) : 0,
+      pressure: localPlayer?.pressure || 0, // Use actual pressure from server (has decay)
       elapsedTime: multiplayerState.gameStartTime ? Date.now() - multiplayerState.gameStartTime : 0,
       lastCorrectAnswerTime: localPlayer?.lastAnswerTime || Date.now(),
       currentRoute: multiplayerState.currentRoute,
@@ -330,9 +341,28 @@ export function ComplementRaceProvider({ children }: { children: ReactNode }) {
     }
   }, [multiplayerState, localPlayerId, localUIState])
 
-  console.log(
-    `🚂 Sprint: momentum=${compatibleState.momentum} pos=${compatibleState.trainPosition} pressure=${compatibleState.pressure}`
-  )
+  // Debug logging: only log on answer submission or significant events
+  useEffect(() => {
+    if (compatibleState.style === 'sprint' && compatibleState.isGameActive) {
+      const key = `${compatibleState.correctAnswers}`
+
+      // Only log on new answers (not every frame)
+      if (lastLogRef.key !== key) {
+        console.log(
+          `🚂 Answer #${compatibleState.correctAnswers}: momentum=${compatibleState.momentum} pos=${Math.floor(compatibleState.trainPosition)} pressure=${compatibleState.pressure} streak=${compatibleState.streak}`
+        )
+        lastLogRef.key = key
+      }
+    }
+  }, [
+    compatibleState.correctAnswers,
+    compatibleState.momentum,
+    compatibleState.trainPosition,
+    compatibleState.pressure,
+    compatibleState.streak,
+    compatibleState.style,
+    compatibleState.isGameActive,
+  ])
 
   // Action creators
   const startGame = useCallback(() => {

apps/web/src/arcade-games/complement-race/Validator.ts

@@ -170,6 +170,7 @@ export class ComplementRaceValidator
         totalQuestions: 0,
         position: 0,
         momentum: 50, // Start with some momentum in sprint mode
+        pressure: 60, // Start with initial pressure
         isReady: false,
         isActive: true,
         currentAnswer: null,
@@ -317,13 +318,21 @@ export class ComplementRaceValidator
         updatedPlayer.position = Math.min(100, player.position + 100 / state.config.raceGoal)
       }
     } else if (state.config.style === 'sprint') {
-      // Sprint: Update momentum AND position
+      // Sprint: Update momentum, pressure, AND position
       if (correct) {
         updatedPlayer.momentum = Math.min(100, player.momentum + 15)
+        // Add pressure on correct answer (add steam to boiler)
+        updatedPlayer.pressure = Math.min(100, player.pressure + 20)
       } else {
         updatedPlayer.momentum = Math.max(0, player.momentum - 10)
+        // Less pressure added on wrong answer
+        updatedPlayer.pressure = Math.min(100, player.pressure + 5)
       }
 
+      // Pressure decay: Every answer causes some steam to escape
+      // Decay rate: 8 points per answer (pressure naturally decreases over time)
+      updatedPlayer.pressure = Math.max(0, updatedPlayer.pressure - 8)
+
       // Move train based on momentum (momentum/20 = position change per answer)
       // Higher momentum = faster movement
       const moveDistance = updatedPlayer.momentum / 20
@@ -527,12 +536,14 @@ export class ComplementRaceValidator
       return { valid: false, error: 'Routes only available in sprint mode' }
     }
 
-    // Reset all player positions to 0
+    // Reset all player positions to 0 for new route
     const resetPlayers: Record<string, PlayerState> = {}
     for (const [playerId, player] of Object.entries(state.players)) {
       resetPlayers[playerId] = {
         ...player,
         position: 0,
+        momentum: 50, // Reset momentum to starting value
+        pressure: 60, // Reset pressure to starting value
         passengers: [], // Clear any remaining passengers
       }
     }

apps/web/src/arcade-games/complement-race/types.ts

@@ -63,6 +63,7 @@ export interface PlayerState {
   // Position & Progress
   position: number // 0-100% for practice/sprint, lap count for survival
   momentum: number // 0-100 (sprint mode only)
+  pressure: number // 0-100 (sprint mode only, decays over time)
 
   // Current state
   isReady: boolean

package.json

@@ -1,6 +1,6 @@
 {
   "name": "soroban-monorepo",
-  "version": "4.4.3",
+  "version": "4.4.5",
   "private": true,
   "description": "Beautiful Soroban Flashcard Generator - Monorepo",
   "workspaces": [