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More comments in ArmsItem

Signed-off-by: Gabriel Ravier <gabravier@gmail.com>

--- a/src/ArmsItem.cpp

+++ b/src/ArmsItem.cpp

@@ -203,6 +203,7 @@

 		if (gKeyTrg & (gKeyUp | gKeyDown))

 		{

+			// If there are any items, we're changing to the items section, since the weapons section has only 1 row

 			if (item_num)

 				gCampActive = TRUE;

@@ -209,7 +210,7 @@

 			bChange = TRUE;

 		}

-

+		// Loop around gSelectedArms if needed

 		if (gSelectedArms < 0)

 			gSelectedArms = arms_num - 1;

@@ -513,17 +514,17 @@

 {

 	for (int i = 0; i < ARMS_MAX; ++i)

 		if (gArmsData[i].code == a)

-			return TRUE;

+			return TRUE; // Found

-	return FALSE;

+	return FALSE; // Not found

 }

 BOOL UseArmsEnergy(long num)

 {

 	if (gArmsData[gSelectedArms].max_num == 0)

-		return TRUE;

+		return TRUE; // No ammo needed

 	if (gArmsData[gSelectedArms].num == 0)

-		return FALSE;

+		return FALSE; // No ammo left

 	gArmsData[gSelectedArms].num -= num;

@@ -530,7 +531,7 @@

 	if (gArmsData[gSelectedArms].num < 0)

 		gArmsData[gSelectedArms].num = 0;

-	return TRUE;

+	return TRUE; // Was able to spend ammo

 }

 BOOL ChargeArmsEnergy(long num)