forked from github/server
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/*
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Copyright (c) 1998-2015, Enno Rehling <enno@eressea.de>
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Katja Zedel <katze@felidae.kn-bremen.de
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Christian Schlittchen <corwin@amber.kn-bremen.de>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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**/
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#include <platform.h>
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#include <kernel/config.h>
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#include "movement.h"
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#include <util/attrib.h>
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#include <util/gamedata.h>
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#include <util/macros.h>
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#include <storage.h>
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#include <limits.h>
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#include <assert.h>
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static int read_movement(variant *var, void *owner, gamedata *data)
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{
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READ_INT(data->store, &var->i);
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if (var->i != 0)
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return AT_READ_OK;
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else
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return AT_READ_FAIL;
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}
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attrib_type at_movement = {
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"movement", NULL, NULL, NULL, a_writeint, read_movement
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};
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bool get_movement(attrib * const *alist, int type)
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{
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const attrib *a = a_find(*alist, &at_movement);
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if (a == NULL)
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return false;
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if (a->data.i & type)
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return true;
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return false;
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}
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void set_movement(attrib ** alist, int type)
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{
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attrib *a = a_find(*alist, &at_movement);
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if (a == NULL)
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a = a_add(alist, a_new(&at_movement));
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a->data.i |= type;
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}
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static int age_speedup(attrib * a, void *owner)
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{
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UNUSED_ARG(owner);
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if (a->data.sa[0] > 0) {
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assert(a->data.sa[0] - a->data.sa[1] >= SHRT_MIN);
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assert(a->data.sa[0] - a->data.sa[1] <= SHRT_MAX);
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a->data.sa[0] = (short)(a->data.sa[0] - a->data.sa[1]);
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}
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return (a->data.sa[0] > 0) ? AT_AGE_KEEP : AT_AGE_REMOVE;
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}
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attrib_type at_speedup = {
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"speedup",
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NULL, NULL,
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age_speedup,
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a_writeint,
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a_readint
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};
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