Phase 4: Mana Flow effects

src/lib/game/store.ts

@@ -720,6 +720,7 @@ function makeInitial(overrides: Partial<GameState> = {}): GameState {
 
     log: ['✨ The loop begins. You start with a Basic Staff (Mana Bolt) and civilian clothes. Gather your strength, mage.'],
     loopInsight: 0,
+    flowSurgeEndTime: 0,  // Hour timestamp for FLOW_SURGE effect (0 = inactive)
   };
 }
 
@@ -857,10 +858,24 @@ export const useGameStore = create<GameStore>()(
         }
         
         // Calculate effective regen with incursion and meditation
-        const effectiveRegen = baseRegen * (1 - incursionStrength) * meditationMultiplier;
+        let effectiveRegen = baseRegen * (1 - incursionStrength) * meditationMultiplier;
         
-        // Mana regeneration
-        let rawMana = Math.min(state.rawMana + effectiveRegen * HOURS_PER_TICK, maxMana);
+        // FLOW_SURGE: +100% regen for 1 hour after clicking
+        let flowSurgeEndTime = state.flowSurgeEndTime;
+        if (flowSurgeEndTime > 0) {
+          if (state.hour <= flowSurgeEndTime) {
+            // FLOW_SURGE is active - double the regen
+            effectiveRegen *= 2;
+          } else {
+            // FLOW_SURGE has expired
+            flowSurgeEndTime = 0;
+          }
+        }
+        
+        // Mana regeneration with MANA_OVERFLOW support
+        const overflowMultiplier = hasSpecial(effects, SPECIAL_EFFECTS.MANA_OVERFLOW) ? 1.2 : 1.0;
+        const maxManaWithOverflow = maxMana * overflowMultiplier;
+        let rawMana = Math.min(state.rawMana + effectiveRegen * HOURS_PER_TICK, maxManaWithOverflow);
         let totalManaGathered = state.totalManaGathered;
 
         // Attunement mana conversion - convert raw mana to attunement's primary mana type
@@ -1405,6 +1420,7 @@ export const useGameStore = create<GameStore>()(
           log,
           castProgress,
           golemancy,
+          flowSurgeEndTime,
           ...craftingUpdates,
         });
       },
@@ -1421,9 +1437,18 @@ export const useGameStore = create<GameStore>()(
         cm = Math.floor(cm * overflowBonus);
         
         const max = computeMaxMana(state, effects);
+        
+        // FLOW_SURGE: Clicks restore 2x regen for 1 hour
+        let flowSurgeEndTime = state.flowSurgeEndTime;
+        if (hasSpecial(effects, SPECIAL_EFFECTS.FLOW_SURGE) && flowSurgeEndTime === 0) {
+          // Activate FLOW_SURGE for 1 hour
+          flowSurgeEndTime = state.hour + 1;
+        }
+        
         set({
           rawMana: Math.min(state.rawMana + cm, max),
           totalManaGathered: state.totalManaGathered + cm,
+          flowSurgeEndTime,
         });
       },