server/common/anim.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 *
 * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2002-2003 Mark Wedel & Crossfire Development Team
 * Copyright (©) 1992 Frank Tore Johansen
 *
 * Deliantra is free software: you can redistribute it and/or modify it under
 * the terms of the Affero GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the Affero GNU General Public License
 * and the GNU General Public License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 *
 * The authors can be reached via e-mail to <support@deliantra.net>
 */

/* This file contains animation related code. */

#include <global.h>
#include <stdio.h>

static animhash_t animhash;
std::vector<animation> animations;

void
animation::resize (int new_size)
{
  sfree<faceidx> (faces, num_animations);
  num_animations = new_size;
  faces = salloc<faceidx> (num_animations);
}

animation &
animation::create (const char *name, uint8 frames, uint8 facings)
{
  if (animations.size () == MAXANIMNUM)
    cleanup ("trying to create new animation, but MAXANIMNUM animations in use.");

  animations.push_back (animation ());
  animation &anim = animations.back ();

  anim.number         = animations.size () - 1;
  anim.name           = name;
  anim.num_animations = frames;
  anim.facings        = facings;
  anim.faces          = salloc<faceidx> (frames);

  animhash.insert (std::make_pair (anim.name, anim.number));

  return anim;
}

/* Tries to find the animation id that matches name. Returns an integer match
 * 0 if no match found (animation 0 is initialised as the 'bug' face
 */
animation &
animation::find (const char *name)
{
  if (!name)
    return animations [0];

  animhash_t::iterator i = animhash.find (name);
  return animations [i == animhash.end () ? 0 : i->second];
}

void
init_anim ()
{
  animation &anim0 = animation::create ("none", 1, 0);
  anim0.faces [0] = 0;
}

/*
 * animate_object(object) updates the face-variable of an object.
 * If the object is the head of a multi-object, all objects are animated.
 * op is the object to animate.
 * dir is the direction the object is facing.  This is generally same as
 *    op->direction, but in some cases, op->facing is used instead - the
 *    caller has a better idea which one it really wants to be using,
 *    so let it pass along the right one.
 */
void
animate_object (object *op, int dir)
{
  int max_state;                  /* Max animation state object should be drawn in */
  int base_state;                 /* starting index # to draw from */

  if (!op->animation_id || !NUM_ANIMATIONS (op))
    {
      LOG (llevError, "Object %s lacks animation.\n", op->debug_desc ());
      op->clr_flag (FLAG_ANIMATE);
      return;
    }

  if (op->head_ () != op)
    {
      dir = op->head->direction;

      if (NUM_ANIMATIONS (op) == NUM_ANIMATIONS (op->head))
        op->state = op->head->state;
      else
        ++op->state;
    }
  else
    ++op->state;              /* increase draw state */

  /* If object is turning, then max animation state is half through the
   * animations.  Otherwise, we can use all the animations.
   */
  max_state = NUM_ANIMATIONS (op) / NUM_FACINGS (op);
  base_state = 0;
  /* at least in the older animations that used is_turning, the first half
   * of the animations were left facing, the second half right facing.
   * Note in old the is_turning, it was set so that the animation for a monster
   * was always towards the enemy - now it is whatever direction the monster
   * is facing.
   */

  if (dir > 0)
    switch (NUM_FACINGS (op))
      {
        case 2: base_state = ((dir - 1) / (8 / 2)) * (NUM_ANIMATIONS (op) / 2); break;
        case 4: base_state = ((dir - 1) / (8 / 4)) * (NUM_ANIMATIONS (op) / 4); break;
        case 8: base_state = ((dir - 1) / (8 / 8)) * (NUM_ANIMATIONS (op) / 8); break;
      }
  else
    base_state = 0;

  /* If beyond drawable states, reset */
  if (op->state >= max_state)
    op->state = 0;

  SET_ANIMATION (op, op->state + base_state);

  if (op->face == blank_face)
    op->invisible = 1;

  /* This block covers monsters (eg, pixies) which are supposed to
   * cycle from visible to invisible and back to being visible.
   * as such, disable it for players, as then players would become
   * visible.
   */
  else if (op->type != PLAYER && op->arch->flag [FLAG_ALIVE])
    {
      if (op->face == 0)
        {
          op->invisible = 1;
          op->clr_flag (FLAG_ALIVE);
        }
      else
        {
          op->invisible = 0;
          op->set_flag (FLAG_ALIVE);
        }
    }

  if (op->more)
    animate_object (op->more, dir);

  /* update_object will also recursively update all the pieces.
   * as such, we call it last, and only call it for the head
   * piece, and not for the other tail pieces.
   */
  if (op->head_ () == op)
    update_object (op, UP_OBJ_FACE);
}

Revision:	1.41
Committed:	Wed Nov 14 06:21:39 2012 UTC (11 years, 6 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-3_1
Changes since 1.40:	+3 -10 lines
Log Message:	* empty log message *
#	Content
1	/*
2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	*
4	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copyright (©) 2002-2003 Mark Wedel & Crossfire Development Team
6	* Copyright (©) 1992 Frank Tore Johansen
7	*
8	* Deliantra is free software: you can redistribute it and/or modify it under
9	* the terms of the Affero GNU General Public License as published by the
10	* Free Software Foundation, either version 3 of the License, or (at your
11	* option) any later version.
12	*
13	* This program is distributed in the hope that it will be useful,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.
17	*
18	* You should have received a copy of the Affero GNU General Public License
19	* and the GNU General Public License along with this program. If not, see
20	* <http://www.gnu.org/licenses/>.
21	*
22	* The authors can be reached via e-mail to <support@deliantra.net>
23	*/
24
25	/* This file contains animation related code. */
26
27	#include <global.h>
28	#include <stdio.h>
29
30	static animhash_t animhash;
31	std::vector<animation> animations;
32
33	void
34	animation::resize (int new_size)
35	{
36	sfree<faceidx> (faces, num_animations);
37	num_animations = new_size;
38	faces = salloc<faceidx> (num_animations);
39	}
40
41	animation &
42	animation::create (const char *name, uint8 frames, uint8 facings)
43	{
44	if (animations.size () == MAXANIMNUM)
45	cleanup ("trying to create new animation, but MAXANIMNUM animations in use.");
46
47	animations.push_back (animation ());
48	animation &anim = animations.back ();
49
50	anim.number = animations.size () - 1;
51	anim.name = name;
52	anim.num_animations = frames;
53	anim.facings = facings;
54	anim.faces = salloc<faceidx> (frames);
55
56	animhash.insert (std::make_pair (anim.name, anim.number));
57
58	return anim;
59	}
60
61	/* Tries to find the animation id that matches name. Returns an integer match
62	* 0 if no match found (animation 0 is initialised as the 'bug' face
63	*/
64	animation &
65	animation::find (const char *name)
66	{
67	if (!name)
68	return animations [0];
69
70	animhash_t::iterator i = animhash.find (name);
71	return animations [i == animhash.end () ? 0 : i->second];
72	}
73
74	void
75	init_anim ()
76	{
77	animation &anim0 = animation::create ("none", 1, 0);
78	anim0.faces [0] = 0;
79	}
80
81	/*
82	* animate_object(object) updates the face-variable of an object.
83	* If the object is the head of a multi-object, all objects are animated.
84	* op is the object to animate.
85	* dir is the direction the object is facing. This is generally same as
86	* op->direction, but in some cases, op->facing is used instead - the
87	* caller has a better idea which one it really wants to be using,
88	* so let it pass along the right one.
89	*/
90	void
91	animate_object (object *op, int dir)
92	{
93	int max_state; /* Max animation state object should be drawn in */
94	int base_state; /* starting index # to draw from */
95
96	if (!op->animation_id \|\| !NUM_ANIMATIONS (op))
97	{
98	LOG (llevError, "Object %s lacks animation.\n", op->debug_desc ());
99	op->clr_flag (FLAG_ANIMATE);
100	return;
101	}
102
103	if (op->head_ () != op)
104	{
105	dir = op->head->direction;
106
107	if (NUM_ANIMATIONS (op) == NUM_ANIMATIONS (op->head))
108	op->state = op->head->state;
109	else
110	++op->state;
111	}
112	else
113	++op->state; /* increase draw state */
114
115	/* If object is turning, then max animation state is half through the
116	* animations. Otherwise, we can use all the animations.
117	*/
118	max_state = NUM_ANIMATIONS (op) / NUM_FACINGS (op);
119	base_state = 0;
120	/* at least in the older animations that used is_turning, the first half
121	* of the animations were left facing, the second half right facing.
122	* Note in old the is_turning, it was set so that the animation for a monster
123	* was always towards the enemy - now it is whatever direction the monster
124	* is facing.
125	*/
126
127	if (dir > 0)
128	switch (NUM_FACINGS (op))
129	{
130	case 2: base_state = ((dir - 1) / (8 / 2)) * (NUM_ANIMATIONS (op) / 2); break;
131	case 4: base_state = ((dir - 1) / (8 / 4)) * (NUM_ANIMATIONS (op) / 4); break;
132	case 8: base_state = ((dir - 1) / (8 / 8)) * (NUM_ANIMATIONS (op) / 8); break;
133	}
134	else
135	base_state = 0;
136
137	/* If beyond drawable states, reset */
138	if (op->state >= max_state)
139	op->state = 0;
140
141	SET_ANIMATION (op, op->state + base_state);
142
143	if (op->face == blank_face)
144	op->invisible = 1;
145
146	/* This block covers monsters (eg, pixies) which are supposed to
147	* cycle from visible to invisible and back to being visible.
148	* as such, disable it for players, as then players would become
149	* visible.
150	*/
151	else if (op->type != PLAYER && op->arch->flag [FLAG_ALIVE])
152	{
153	if (op->face == 0)
154	{
155	op->invisible = 1;
156	op->clr_flag (FLAG_ALIVE);
157	}
158	else
159	{
160	op->invisible = 0;
161	op->set_flag (FLAG_ALIVE);
162	}
163	}
164
165	if (op->more)
166	animate_object (op->more, dir);
167
168	/* update_object will also recursively update all the pieces.
169	* as such, we call it last, and only call it for the head
170	* piece, and not for the other tail pieces.
171	*/
172	if (op->head_ () == op)
173	update_object (op, UP_OBJ_FACE);
174	}
175