/*
Copyright (c) 1998-2015, Enno Rehling <enno@eressea.de>
Katja Zedel <katze@felidae.kn-bremen.de
Christian Schlittchen <corwin@amber.kn-bremen.de>

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
**/

#ifndef H_KRNL_BUILD
#define H_KRNL_BUILD

#include "types.h"
#include "direction.h"
#include "skill.h"

#ifdef __cplusplus
extern "C" {
#endif

    /* Die enums fuer Gebauede werden nie gebraucht, nur bei der Bestimmung
     * des Schutzes durch eine Burg wird die Reihenfolge und MAXBUILDINGS
     * wichtig
     */

    typedef struct requirement {
        const struct resource_type *rtype;
        int number;
    } requirement;

    typedef struct construction {
        skill_t skill;              /* skill req'd per point of size */
        int minskill;               /* skill req'd per point of size */

        int maxsize;                /* maximum size of this type */
        int reqsize;                /* size of object using up 1 set of requirement. */
        requirement *materials;     /* material req'd to build one object */
    } construction;

    void free_construction(struct construction *cons);
    int destroy_cmd(struct unit *u, struct order *ord);
    int leave_cmd(struct unit *u, struct order *ord);

    void build_road(struct unit *u, int size, direction_t d);
    void create_ship(struct unit *u, const struct ship_type *newtype,
        int size, struct order *ord);
    void continue_ship(struct unit *u, int size);

    struct building *getbuilding(const struct region *r);
    struct ship *getship(const struct region *r);

    void shash(struct ship *sh);
    void sunhash(struct ship *sh);
    int roqf_factor(void);

    int build(struct unit *u, const construction * ctype, int completed, int want, int skill_mod);
    int maxbuild(const struct unit *u, const construction * cons);
    struct message *msg_materials_required(struct unit *u, struct order *ord,
        const struct construction *ctype, int multi);

    /** error messages that build may return: */
#define ELOWSKILL -1
#define ENEEDSKILL -2
#define ECOMPLETE -3
#define ENOMATERIALS -4

#ifdef __cplusplus
}
#endif
#endif