Phase 4: Mana Flow effects

src/components/game/GameContext.tsx

@@ -150,8 +150,15 @@ interface GameContextValue {
   // Effective regen calculations
   effectiveRegenWithSpecials: number;
   manaCascadeBonus: number;
+  manaWaterfallBonus: number;
   effectiveRegen: number;
   
+  // Has special flags
+  hasManaWaterfall: boolean;
+  hasFlowSurge: boolean;
+  hasManaOverflow: boolean;
+  hasEternalFlow: boolean;
+  
   // DPS calculation
   dps: number;
   
@@ -330,7 +337,17 @@ export function GameProvider({ children }: { children: ReactNode }) {
     ? Math.floor(maxMana / 100) * 0.1
     : 0;
   
-  const effectiveRegen = (effectiveRegenWithSpecials + manaCascadeBonus) * meditationMultiplier;
+  const manaWaterfallBonus = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_WATERFALL)
+    ? Math.floor(maxMana / 100) * 0.25
+    : 0;
+  
+  const effectiveRegen = (effectiveRegenWithSpecials + manaCascadeBonus + manaWaterfallBonus) * meditationMultiplier;
+  
+  // Has special flags for UI
+  const hasManaWaterfall = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_WATERFALL);
+  const hasFlowSurge = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.FLOW_SURGE);
+  const hasManaOverflow = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_OVERFLOW);
+  const hasEternalFlow = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.ETERNAL_FLOW);
   
   // Active boons
   const activeBoons = useMemo(
@@ -381,7 +398,12 @@ export function GameProvider({ children }: { children: ReactNode }) {
     studyCostMult,
     effectiveRegenWithSpecials,
     manaCascadeBonus,
+    manaWaterfallBonus,
     effectiveRegen,
+    hasManaWaterfall,
+    hasFlowSurge,
+    hasManaOverflow,
+    hasEternalFlow,
     dps,
     activeBoons,
     canCastSpell,