Fixed #772.

This is not a real fix but rather a fix which issues a warning for this kind of problem to show clearly that it is working as "intended".

db/mob_avail.txt

@@ -13,6 +13,7 @@
 //
 // SpriteID is a job class value.
 // Weapon and Shield uses Item ID, while Head uses View ID.
+// Option for carts only works if you compiled your server for a packet version before 2012-02-01
 
 //1002,1039		// Poring - Baphomet
 //1970,1002,10013	// Displays a Poring with a backpack

src/map/mob.c

@@ -4100,6 +4100,13 @@ static bool mob_readdb_mobavail(char* str[], int columns, int current)
 		mob_db_data[mob_id]->vd.head_bottom=atoi(str[9]);
 		mob_db_data[mob_id]->option=atoi(str[10])&~(OPTION_HIDE|OPTION_CLOAK|OPTION_INVISIBLE);
 		mob_db_data[mob_id]->vd.cloth_color=atoi(str[11]); // Monster player dye option - Valaris
+
+#ifdef NEW_CARTS
+		if( mob_db_data[mob_id]->option & OPTION_CART ){
+			ShowWarning("mob_readdb_mobavail: You tried to use a cart for mob id %d. This does not work with setting an option anymore.\n", mob_id );
+			mob_db_data[mob_id]->option &= ~OPTION_CART;
+		}
+#endif
 	}
 	else if(columns==3)
 		mob_db_data[mob_id]->vd.head_bottom=atoi(str[2]); // mob equipment [Valaris]

src/map/status.h

@@ -1759,9 +1759,14 @@ enum e_option {
 	OPTION_SIGHT		= 0x00000001,
 	OPTION_HIDE			= 0x00000002,
 	OPTION_CLOAK		= 0x00000004,
+	OPTION_CART1		= 0x00000008,
 	OPTION_FALCON		= 0x00000010,
 	OPTION_RIDING		= 0x00000020,
 	OPTION_INVISIBLE	= 0x00000040,
+	OPTION_CART2		= 0x00000080,
+	OPTION_CART3		= 0x00000100,
+	OPTION_CART4		= 0x00000200,
+	OPTION_CART5		= 0x00000400,
 	OPTION_ORCISH		= 0x00000800,
 	OPTION_WEDDING		= 0x00001000,
 	OPTION_RUWACH		= 0x00002000,
@@ -1781,16 +1786,8 @@ enum e_option {
 	OPTION_HANBOK		= 0x08000000,
 	OPTION_OKTOBERFEST	= 0x10000000,
 
-#ifndef NEW_CARTS
-	OPTION_CART1	= 0x00000008,
-	OPTION_CART2	= 0x00000080,
-	OPTION_CART3	= 0x00000100,
-	OPTION_CART4	= 0x00000200,
-	OPTION_CART5	= 0x00000400,
-
 	// compound constant for older carts
 	OPTION_CART	= OPTION_CART1|OPTION_CART2|OPTION_CART3|OPTION_CART4|OPTION_CART5,
-#endif
 
 	// compound constants
 	OPTION_DRAGON	= OPTION_DRAGON1|OPTION_DRAGON2|OPTION_DRAGON3|OPTION_DRAGON4|OPTION_DRAGON5,