Crossfire Server, Trunk  R20513
player_mover.c
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1 /*
2  CrossFire, A Multiplayer game for X-windows
3 
4  Copyright (C) 2007 Mark Wedel & Crossfire Development Team
5  Copyright (C) 1992 Frank Tore Johansen
6 
7  This program is free software; you can redistribute it and/or modify
8  it under the terms of the GNU General Public License as published by
9  the Free Software Foundation; either version 2 of the License, or
10  (at your option) any later version.
11 
12  This program is distributed in the hope that it will be useful,
13  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  GNU General Public License for more details.
16 
17  You should have received a copy of the GNU General Public License
18  along with this program; if not, write to the Free Software
19  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 
21  The authors can be reached via e-mail at crossfire-devel@real-time.com
22 */
23 
27 #include <global.h>
28 #include <ob_methods.h>
29 #include <ob_types.h>
30 #include <sounds.h>
31 #include <sproto.h>
32 
33 static method_ret player_mover_type_move_on(ob_methods *context, object *trap, object *victim, object *originator);
34 
40 }
49 static method_ret player_mover_type_move_on(ob_methods *context, object *trap, object *victim, object *originator) {
50  if (common_pre_ob_move_on(trap, victim, originator) == METHOD_ERROR)
51  return METHOD_OK;
52  if (trap->attacktype
53  && (trap->level || victim->type != PLAYER)
54  && !should_director_abort(trap, victim)) {
55  if (!trap->stats.maxsp)
56  trap->stats.maxsp = 2;
57 
58  /* Is this correct? From the docs, it doesn't look like it
59  * should be divided by trap->speed
60  */
61  victim->speed_left = -FABS(trap->stats.maxsp*victim->speed/trap->speed);
62 
63  /* Just put in some sanity check. I think there is a bug in the
64  * above with some objects have zero speed, and thus the player
65  * getting permanently paralyzed.
66  */
67  if (victim->speed_left < -50.0)
68  victim->speed_left = -50.0;
69  }
70  common_post_ob_move_on(trap, victim, originator);
71  return METHOD_OK;
72 }
Sound-related defines.
Typedefs for ob_methods.
Definition: ob_methods.h:45
method_ret common_pre_ob_move_on(object *trap, object *victim, object *originator)
Definition: common_apply.c:51
#define FABS(x)
Decstations have trouble with fabs()...
Definition: define.h:22
#define METHOD_ERROR
Definition: ob_methods.h:17
Global type definitions and header inclusions.
See Mover.
Definition: object.h:140
int16_t maxsp
Max spell points.
Definition: living.h:42
char method_ret
Define some standard return values for callbacks which don&#39;t need to return any other results...
Definition: ob_methods.h:14
float speed_left
How much speed is left to spend this round.
Definition: object.h:329
void register_move_on(int ob_type, move_on_func method)
Registers the move_on method for the given type.
Definition: ob_types.c:89
#define METHOD_OK
Definition: ob_methods.h:15
void init_type_player_mover(void)
Initializer for the PLAYERMOVER object type.
Definition: player_mover.c:38
float speed
The overall speed of this object.
Definition: object.h:328
Object type variables.
void common_post_ob_move_on(object *trap, object *victim, object *originator)
Definition: common_apply.c:87
See Player.
Definition: object.h:107
uint32_t attacktype
Bitmask of attacks this object does.
Definition: object.h:342
living stats
Str, Con, Dex, etc.
Definition: object.h:368
uint8_t type
PLAYER, BULLET, etc.
Definition: object.h:338
static method_ret player_mover_type_move_on(ob_methods *context, object *trap, object *victim, object *originator)
Move on this Player Mover object.
Definition: player_mover.c:49
int should_director_abort(const object *op, const object *victim)
Check if op should abort moving victim because of it&#39;s race or slaying.
Definition: apply.c:68
Object type functions and variables.
int16_t level
Level of creature or object.
Definition: object.h:351