Corrected guild level increases (#4094)

* Resolves guild levels being capped to various hard coded limits rather than using the constant.
Thanks to @datleeroy!

src/char/int_guild.cpp

@@ -758,7 +758,7 @@ int inter_guild_sql_init(void)
 
 	//Read exp file
 	for(i = 0; i<ARRAYLENGTH(filename); i++){
-		sv_readdb(db_path, filename[i], ',', 1, 1, 100, exp_guild_parse_row, i > 0);
+		sv_readdb(db_path, filename[i], ',', 1, 1, MAX_GUILDLEVEL, exp_guild_parse_row, i > 0);
 	}
 
 	add_timer_func_list(guild_save_timer, "guild_save_timer");
@@ -829,7 +829,10 @@ unsigned int guild_nextexp(int level)
 {
 	if (level == 0)
 		return 1;
-	return level < 100 && level > 0 ? guild_exp[level-1] : 0;
+	if (level < 0 || level > MAX_GUILDLEVEL)
+		return 0;
+
+	return guild_exp[level-1];
 }
 
 int guild_checkskill(struct guild *g,int id)
@@ -867,7 +870,7 @@ int guild_calcinfo(struct guild *g)
 		g->max_member = MAX_GUILD;
 	}
 
-	// Compute the guild average level level
+	// Compute the guild average level
 	g->average_lv=0;
 	g->connect_member=0;
 	for(i=c=0;i<g->max_member;i++)
@@ -1451,23 +1454,22 @@ int mapif_parse_GuildMessage(int fd,int guild_id,uint32 account_id,char *mes,int
 // Modification of the guild
 int mapif_parse_GuildBasicInfoChange(int fd,int guild_id,int type,const char *data,int len)
 {
-	struct guild * g;
-	short dw=*((short *)data);
-	g = inter_guild_fromsql(guild_id);
-	if(g==NULL)
+	struct guild *g = inter_guild_fromsql(guild_id);
+
+	if (!g)
 		return 0;
 
-	switch(type)
-	{
+	short data_value = *((short *)data);
+
+	switch(type) {
 		case GBI_GUILDLV:
-			if(dw>0 && g->guild_lv+dw<=50)
-			{
-				g->guild_lv+=dw;
-				g->skill_point+=dw;
-			}
-			else if(dw<0 && g->guild_lv+dw>=1)
-				g->guild_lv+=dw;
-			mapif_guild_info(-1,g);
+			if (data_value > 0 && g->guild_lv + data_value <= MAX_GUILDLEVEL) {
+				g->guild_lv += data_value;
+				g->skill_point += data_value;
+			} else if (data_value < 0 && g->guild_lv + data_value >= 1)
+				g->guild_lv += data_value;
+
+			mapif_guild_info(-1, g);
 			g->save_flag |= GS_LEVEL;
 			return 0;
 		default: