Make _pBlockFlag into a boolean.

_pBlockFlag is only ever used in boolean contexts.

Source/items.cpp

@@ -515,7 +515,7 @@ void CalcPlrItemVals(int p, BOOL Loadgfx)
 		plr[p]._pInfraFlag = 0;
 	}
 
-	plr[p]._pBlockFlag = 0;
+	plr[p]._pBlockFlag = FALSE;
 	plr[p]._pwtype = WT_MELEE;
 
 	g = 0;
@@ -552,11 +552,11 @@ void CalcPlrItemVals(int p, BOOL Loadgfx)
 	}
 
 	if (plr[p].InvBody[INVLOC_HAND_LEFT]._itype == ITYPE_SHIELD && plr[p].InvBody[INVLOC_HAND_LEFT]._iStatFlag) {
-		plr[p]._pBlockFlag = 1;
+		plr[p]._pBlockFlag = TRUE;
 		g++;
 	}
 	if (plr[p].InvBody[INVLOC_HAND_RIGHT]._itype == ITYPE_SHIELD && plr[p].InvBody[INVLOC_HAND_RIGHT]._iStatFlag) {
-		plr[p]._pBlockFlag = 1;
+		plr[p]._pBlockFlag = TRUE;
 		g++;
 	}
 

structs.h

@@ -224,7 +224,7 @@ typedef struct PlayerStruct {
 	int _pSplHotKey[4];
 	char _pSplTHotKey[4];
 	int _pwtype;
-	unsigned char _pBlockFlag;
+	BOOLEAN _pBlockFlag;
 	unsigned char _pInvincible;
 	char _pLightRad;
 	unsigned char _pLvlChanging;