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/* |
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* CrossFire, A Multiplayer game for X-windows |
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* |
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* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
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* Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team |
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* Copyright (C) 1992 Frank Tore Johansen |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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* The authors can be reached via e-mail at <crossfire@schmorp.de> |
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*/ |
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|
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#include <global.h> |
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#include <unistd.h> |
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|
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region * |
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region::default_region () |
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{ |
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for (region *reg = first_region; reg; reg = reg->next) |
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if (reg->fallback) |
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return reg; |
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|
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return first_region; |
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} |
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|
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/* |
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* Pass a char array, returns a pointer to the region of the same name. |
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* if it can't find a region of the same name it returns the first region |
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* with the 'fallback' property set. |
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* if it can't find a matching name /or/ a fallback region it logs an info message |
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* message and returns NULL |
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* used by the map parsing code. |
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*/ |
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region * |
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region::find (const char *name) |
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{ |
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for (region *reg = first_region; reg; reg = reg->next) |
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if (!strcmp (reg->name, name)) |
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return reg; |
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|
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LOG (llevError, "region called %s requested, but not found, using fallback.\n", name); |
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|
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return default_region (); |
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} |
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|
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/* |
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* Tries to find a region that 'name' corresponds to. |
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* It looks, in order, for: |
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* an exact match to region name (case insensitive) |
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* an exact match to longname (case insensitive) |
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* a substring that matches to the longname (eg Kingdom) |
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* a substring that matches to the region name (eg nav) |
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* if it can find none of these it returns the first parentless region |
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* (there should be only one of these - the top level one) |
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* If we got a NULL, then just return the top level region |
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* |
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*/ |
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region * |
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region::find_fuzzy (const char *name) |
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{ |
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region *reg; |
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char *substr; |
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char *p; |
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|
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if (name == NULL) |
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{ |
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for (reg = first_region; reg->parent; reg = reg->parent) |
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; |
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|
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return reg; |
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} |
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|
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p = strchr (name, '\n'); |
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if (p) |
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*p = '\0'; |
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|
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for (reg = first_region; reg; reg = reg->next) |
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if (!strcasecmp (reg->name, name)) |
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return reg; |
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|
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for (reg = first_region; reg; reg = reg->next) |
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if (reg->longname) |
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if (!strcasecmp (reg->longname, name)) |
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return reg; |
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|
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substr = NULL; |
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for (reg = first_region; reg; reg = reg->next) |
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if (reg->longname) |
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{ |
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substr = strstr (reg->longname, name); |
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if (substr) |
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return reg; |
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} |
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|
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for (reg = first_region; reg; reg = reg->next) |
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if (reg->longname) |
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{ |
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/* |
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* This is not a bug, we want the region that is most identifiably a discrete |
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* area in the game, eg if we have 'scor', we want to return 'scorn' and not |
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* 'scornarena', regardless of their order on the list so we only look at those |
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* regions with a longname set. |
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*/ |
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substr = strstr (reg->name, name); |
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if (substr) |
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return reg; |
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} |
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|
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for (reg = first_region; reg; reg = reg->next) |
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{ |
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substr = strstr (reg->name, name); |
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if (substr) |
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return reg; |
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} |
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|
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/* if we are still here, we are going to have to give up, and give the top level region */ |
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for (reg = first_region; reg->parent; reg = reg->parent) |
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; |
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|
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return reg; |
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} |
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|
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/* |
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* returns 1 if the player is in the region reg, or a child region thereof |
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* otherwise returns 0 |
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* if passed a NULL region returns -1 |
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*/ |
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|
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static int |
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region_is_child_of_region (const region * child, const region * r) |
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{ |
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|
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if (r == NULL) |
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return -1; |
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|
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if (child == NULL) |
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return 0; |
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|
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if (!strcmp (child->name, r->name)) |
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return 1; |
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|
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else if (child->parent != NULL) |
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return region_is_child_of_region (child->parent, r); |
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else |
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return 0; |
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} |
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|
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/** Returns an object which is an exit through which the player represented by op should be |
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* sent in order to be imprisoned. If there is no suitable place to which an exit can be |
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* constructed, then NULL will be returned. The caller is responsible for freeing the object |
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* created by this function. |
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*/ |
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object * |
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get_jail_exit (object *op) |
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{ |
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region *reg; |
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object *exit; |
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|
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if (op->type != PLAYER) |
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{ |
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LOG (llevError, "region.c: get_jail_exit called against non-player object.\n"); |
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return NULL; |
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} |
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|
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reg = op->region (); |
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while (reg) |
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{ |
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if (reg->jailmap) |
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{ |
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exit = object::create (); |
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EXIT_PATH (exit) = reg->jailmap; |
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/* damned exits reset savebed and remove teleports, so the prisoner can't escape */ |
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SET_FLAG (exit, FLAG_DAMNED); |
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EXIT_X (exit) = reg->jailx; |
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EXIT_Y (exit) = reg->jaily; |
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return exit; |
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} |
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else |
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reg = reg->parent; |
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} |
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|
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LOG (llevDebug, "No suitable jailmap for region %s was found.\n", ®->name); |
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return NULL; |
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} |
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|
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static void |
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assign_region_parents (void) |
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{ |
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region *reg; |
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uint32 parent_count = 0; |
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uint32 region_count = 0; |
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|
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for (reg = first_region; reg && reg->next; reg = reg->next) |
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{ |
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if (reg->parent_name) |
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{ |
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reg->parent = region::find (reg->parent_name); |
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parent_count++; |
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} |
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|
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region_count++; |
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} |
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|
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LOG (llevDebug, "Assigned %u regions with %u parents.\n", region_count, parent_count); |
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} |
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|
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/* |
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* Reads/parses the region file, and copies into a linked list |
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* of region structs. |
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*/ |
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static bool |
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parse_regions (object_thawer &fp) |
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{ |
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region *newreg; |
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region *reg; |
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|
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newreg = NULL; |
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for (;;) |
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{ |
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keyword kw = fp.get_kv (); |
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|
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switch (kw) |
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{ |
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case KW_EOF: |
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if (newreg) |
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{ |
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LOG (llevError, "%s: end of file while reading regions.\n", fp.name); |
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return false; |
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} |
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else |
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return true; |
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|
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case KW_end: |
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/* Place this new region last on the list, if the list is empty put it first */ |
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for (reg = first_region; reg && reg->next; reg = reg->next) |
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; |
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|
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if (!reg) |
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first_region = newreg; |
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else |
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reg->next = newreg; |
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|
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newreg = 0; |
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break; |
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|
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default: |
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case KW_ERROR: |
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LOG (llevError, "%s: skipping errornous line (%s) while reading regions.\n", fp.name, fp.last_keyword); |
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break; |
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|
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case KW_region: |
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newreg = new region; |
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fp.get (newreg->name); |
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break; |
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|
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case KW_parent: |
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/* |
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* Note that this is in the initialisation code, so we don't actually |
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* assign the pointer to the parent yet, because it might not have been |
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* parsed. |
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*/ |
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fp.get (newreg->parent_name); |
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break; |
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|
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case KW_longname: |
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newreg->longname = strdup (fp.get_str ()); |
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break; |
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|
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case KW_jail_map: |
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fp.get (newreg->jailmap); |
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break; |
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|
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case KW_jail_x: |
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fp.get (newreg->jailx); |
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break; |
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|
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case KW_jail_y: |
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fp.get (newreg->jaily); |
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break; |
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|
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case KW_msg: |
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fp.get_ml (KW_endmsg, newreg->msg); |
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break; |
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|
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case KW_fallback: |
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fp.get (newreg->fallback); |
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break; |
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|
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case KW_nomore: |
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/* we have reached the end of the region specs.... */ |
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return true; |
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} |
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} |
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} |
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|
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/* |
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* First initialises the archtype hash-table (init_archetable()). |
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* Reads and parses the archetype file (with the first and second-pass |
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* functions). |
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* Then initialises treasures by calling load_treasures(). |
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*/ |
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void |
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init_regions (void) |
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{ |
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char filename[MAX_BUF]; |
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int comp; |
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|
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if (first_region != NULL) /* Only do this once */ |
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return; |
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|
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// make sure one region is always available |
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first_region = new region; |
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first_region->name = "<builtin>"; |
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first_region->longname = strdup ("Built-in Region"); |
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|
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sprintf (filename, "%s/%s/%s", settings.datadir, settings.mapdir, settings.regions); |
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LOG (llevDebug, "Reading regions from %s...\n", filename); |
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|
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object_thawer fp (filename); |
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|
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if (!fp) |
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{ |
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LOG (llevError, " Can't open regions file %s in init_regions.\n", filename); |
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return; |
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} |
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|
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parse_regions (fp); |
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|
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assign_region_parents (); |
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LOG (llevDebug, " done\n"); |
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} |