server/common/anim.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2002-2003,2007 Mark Wedel & Crossfire Development Team
 * Copyright (©) 1992,2007 Frank Tore Johansen
 * 
 * Deliantra is free software: you can redistribute it and/or modify
 * it under the terms of the 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 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>

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;
}

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

/* 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
 */
//TODO: nuke this function and replace all occurences by animations::find
int
find_animation (const char *name)
{
  return animation::find (name).number;
}

/*
 * 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 ());
      CLEAR_FLAG (op, 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;
          CLEAR_FLAG (op, FLAG_ALIVE);
        }
      else
        {
          op->invisible = 0;
          SET_FLAG (op, 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:	1.31
Committed:	Thu Sep 17 01:57:31 2009 UTC (14 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.30:	+9 -21 lines
Log Message:	just a simplification
#	User	Rev	Content
1	elmex	1.1	/*
2	root	1.28	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	pippijn	1.17	*
4	root	1.30	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	root	1.25	* Copyright (©) 2002-2003,2007 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992,2007 Frank Tore Johansen
7	pippijn	1.17	*
8	root	1.28	* Deliantra is free software: you can redistribute it and/or modify
9	root	1.27	* it under the terms of the GNU General Public License as published by
10			* the Free Software Foundation, either version 3 of the License, or
11			* (at your option) any later version.
12	pippijn	1.17	*
13	root	1.27	* 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	pippijn	1.17	*
18	root	1.27	* You should have received a copy of the GNU General Public License
19			* along with this program. If not, see <http://www.gnu.org/licenses/>.
20	root	1.25	*
21	root	1.28	* The authors can be reached via e-mail to <support@deliantra.net>
22	pippijn	1.17	*/
23	elmex	1.1
24			/* This file contains animation related code. */
25
26			#include <global.h>
27			#include <stdio.h>
28
29	root	1.22	animhash_t animhash;
30			std::vector<animation> animations;
31
32	root	1.7	void
33	root	1.22	animation::resize (int new_size)
34	root	1.4	{
35	root	1.29	sfree<faceidx> (faces, num_animations);
36	root	1.22	num_animations = new_size;
37			faces = salloc<faceidx> (num_animations);
38	elmex	1.1	}
39
40	root	1.22	animation &
41			animation::create (const char *name, uint8 frames, uint8 facings)
42	root	1.7	{
43	root	1.23	if (animations.size () == MAXANIMNUM)
44			cleanup ("trying to create new animation, but MAXANIMNUM animations in use.");
45
46	root	1.22	animations.push_back (animation ());
47			animation &anim = animations.back ();
48	root	1.7
49	root	1.22	anim.number = animations.size () - 1;
50			anim.name = name;
51			anim.num_animations = frames;
52			anim.facings = facings;
53			anim.faces = salloc<faceidx> (frames);
54	root	1.7
55	root	1.22	animhash.insert (std::make_pair (anim.name, anim.number));
56	root	1.7
57	root	1.22	return anim;
58			}
59	root	1.20
60	root	1.22	animation &
61			animation::find (const char *name)
62			{
63			if (!name)
64			return animations [0];
65	root	1.20
66	root	1.22	animhash_t::iterator i = animhash.find (name);
67			return animations [i == animhash.end () ? 0 : i->second];
68	elmex	1.1	}
69
70	root	1.22	void
71			init_anim (void)
72	root	1.7	{
73	root	1.22	animation &anim0 = animation::create ("none", 1, 0);
74			anim0.faces [0] = 0;
75	elmex	1.1	}
76
77			/* Tries to find the animation id that matches name. Returns an integer match
78	pippijn	1.14	* 0 if no match found (animation 0 is initialised as the 'bug' face
79	elmex	1.1	*/
80	root	1.22	//TODO: nuke this function and replace all occurences by animations::find
81	root	1.7	int
82			find_animation (const char *name)
83	elmex	1.1	{
84	root	1.22	return animation::find (name).number;
85	elmex	1.1	}
86
87			/*
88			* animate_object(object) updates the face-variable of an object.
89			* If the object is the head of a multi-object, all objects are animated.
90			* op is the object to animate.
91			* dir is the direction the object is facing. This is generally same as
92			* op->direction, but in some cases, op->facing is used instead - the
93			* caller has a better idea which one it really wants to be using,
94			* so let it pass along the right one.
95			*/
96	root	1.7	void
97			animate_object (object *op, int dir)
98			{
99	root	1.12	int max_state; /* Max animation state object should be drawn in */
100			int base_state; /* starting index # to draw from */
101	root	1.7
102			if (!op->animation_id \|\| !NUM_ANIMATIONS (op))
103			{
104	root	1.9	LOG (llevError, "Object %s lacks animation.\n", op->debug_desc ());
105	root	1.16	CLEAR_FLAG (op, FLAG_ANIMATE);
106	root	1.7	return;
107			}
108	root	1.9
109	root	1.24	if (op->head_ () != op)
110	root	1.7	{
111			dir = op->head->direction;
112
113			if (NUM_ANIMATIONS (op) == NUM_ANIMATIONS (op->head))
114			op->state = op->head->state;
115			else
116			++op->state;
117			}
118			else
119	root	1.9	++op->state; /* increase draw state */
120	root	1.7
121			/* If object is turning, then max animation state is half through the
122			* animations. Otherwise, we can use all the animations.
123			*/
124			max_state = NUM_ANIMATIONS (op) / NUM_FACINGS (op);
125			base_state = 0;
126	root	1.20	/* at least in the older animations that used is_turning, the first half
127	root	1.7	* of the animations were left facing, the second half right facing.
128			* Note in old the is_turning, it was set so that the animation for a monster
129			* was always towards the enemy - now it is whatever direction the monster
130			* is facing.
131			*/
132	root	1.9
133	root	1.31	if (dir > 0)
134			switch (NUM_FACINGS (op))
135			{
136			case 2: base_state = ((dir - 1) / (8 / 2)) * (NUM_ANIMATIONS (op) / 2); break;
137			case 4: base_state = ((dir - 1) / (8 / 4)) * (NUM_ANIMATIONS (op) / 4); break;
138			case 8: base_state = ((dir - 1) / (8 / 8)) * (NUM_ANIMATIONS (op) / 8); break;
139			}
140			else
141			base_state = 0;
142	root	1.7
143			/* If beyond drawable states, reset */
144			if (op->state >= max_state)
145			op->state = 0;
146
147			SET_ANIMATION (op, op->state + base_state);
148
149			if (op->face == blank_face)
150			op->invisible = 1;
151	root	1.21
152	root	1.7	/* This block covers monsters (eg, pixies) which are supposed to
153			* cycle from visible to invisible and back to being visible.
154			* as such, disable it for players, as then players would become
155			* visible.
156			*/
157	root	1.26	else if (op->type != PLAYER && op->arch->flag [FLAG_ALIVE])
158	root	1.7	{
159	root	1.21	if (op->face == 0)
160	root	1.7	{
161			op->invisible = 1;
162			CLEAR_FLAG (op, FLAG_ALIVE);
163			}
164			else
165			{
166			op->invisible = 0;
167			SET_FLAG (op, FLAG_ALIVE);
168			}
169			}
170
171			if (op->more)
172			animate_object (op->more, dir);
173
174			/* update_object will also recursively update all the pieces.
175			* as such, we call it last, and only call it for the head
176			* piece, and not for the other tail pieces.
177			*/
178	root	1.24	if (op->head_ () == op)
179	root	1.7	update_object (op, UP_OBJ_FACE);
180	elmex	1.1	}
181	root	1.22