From 606b9f09a066231ad2283151c6b03df7338b0101 Mon Sep 17 00:00:00 2001
From: pionere <pionere@home>
Date: Wed, 23 Sep 2020 10:37:40 +0200
Subject: [PATCH] prevent mana gain from books when nomana flag is set

---
 Source/items.cpp | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/Source/items.cpp b/Source/items.cpp
index 4e220cd8c..de3344a48 100644
--- a/Source/items.cpp
+++ b/Source/items.cpp
@@ -4431,12 +4431,14 @@ void UseItem(int p, int Mid, int spl)
 		plr[p]._pMemSpells |= SPELLBIT(spl);
 		if (plr[p]._pSplLvl[spl] < MAX_SPELL_LEVEL)
 			plr[p]._pSplLvl[spl]++;
-		plr[p]._pMana += spelldata[spl].sManaCost << 6;
-		if (plr[p]._pMana > plr[p]._pMaxMana)
-			plr[p]._pMana = plr[p]._pMaxMana;
-		plr[p]._pManaBase += spelldata[spl].sManaCost << 6;
-		if (plr[p]._pManaBase > plr[p]._pMaxManaBase)
-			plr[p]._pManaBase = plr[p]._pMaxManaBase;
+		if (!(plr[p]._pIFlags & ISPL_NOMANA)) {
+			plr[p]._pMana += spelldata[spl].sManaCost << 6;
+			if (plr[p]._pMana > plr[p]._pMaxMana)
+				plr[p]._pMana = plr[p]._pMaxMana;
+			plr[p]._pManaBase += spelldata[spl].sManaCost << 6;
+			if (plr[p]._pManaBase > plr[p]._pMaxManaBase)
+				plr[p]._pManaBase = plr[p]._pMaxManaBase;
+		}
 		if (p == myplr)
 			CalcPlrBookVals(p);
 		drawmanaflag = TRUE;