/*
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_STUDY
#define H_KRNL_STUDY

#include "skill.h"
#include <kernel/types.h>

#ifdef __cplusplus
extern "C" {
#endif

    struct unit;

    int teach_cmd(struct unit *u, struct order *ord);
    int study_cmd(struct unit *u, struct order *ord);

    magic_t getmagicskill(const struct locale *lang);
    bool is_migrant(struct unit *u);
    int study_cost(struct unit *u, skill_t talent);

    typedef void(*learn_fun)(struct unit *u, skill_t sk, int days);

#define STUDYDAYS 30
    void learn_skill(struct unit *u, skill_t sk, int days);

    void produceexp(struct unit *u, skill_t sk, int n);
    void produceexp_ex(struct unit *u, skill_t sk, int n, learn_fun learn);

    void demon_skillchange(struct unit *u);

#define MAXTEACHERS 20
#define TEACHNUMBER 10
    typedef struct teaching_info {
        struct unit *teachers[MAXTEACHERS];
        int value;
    } teaching_info;

    extern const struct attrib_type at_learning;

#ifndef NO_TESTS
    void inject_learn(learn_fun fun);
#endif

#ifdef __cplusplus
}
#endif
#endif