server/common/anim.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 *
 * Copyright (©) 2017,2018 Marc Alexander Lehmann / the Deliantra team
 * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 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 || !op->anim_frames ())
    {
      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 (op->anim_frames () == op->head->anim_frames ())
        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 = op->anim_frames () / op->anim_facings ();
  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 (op->anim_facings ())
      {
        case 2: base_state = ((dir - 1) / (8 / 2)) * (op->anim_frames () / 2); break;
        case 4: base_state = ((dir - 1) / (8 / 4)) * (op->anim_frames () / 4); break;
        case 8: base_state = ((dir - 1) / (8 / 8)) * (op->anim_frames () / 8); break;
      }
  else
    base_state = 0;

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

  op->set_anim_frame (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:	1.44
Committed:	Sun Nov 18 15:19:47 2018 UTC (5 years, 6 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.43:	+8 -8 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	elmex	1.1	/*
2	root	1.28	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	root	1.40	*
4	root	1.43	* Copyright (©) 2017,2018 Marc Alexander Lehmann / the Deliantra team
5	root	1.42	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
6	root	1.35	* Copyright (©) 2002-2003 Mark Wedel & Crossfire Development Team
7			* Copyright (©) 1992 Frank Tore Johansen
8	root	1.40	*
9	root	1.32	* Deliantra is free software: you can redistribute it and/or modify it under
10			* the terms of the Affero GNU General Public License as published by the
11			* Free Software Foundation, either version 3 of the License, or (at your
12			* option) any later version.
13	root	1.40	*
14	root	1.27	* This program is distributed in the hope that it will be useful,
15			* but WITHOUT ANY WARRANTY; without even the implied warranty of
16			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17			* GNU General Public License for more details.
18	root	1.40	*
19	root	1.32	* You should have received a copy of the Affero GNU General Public License
20			* and the GNU General Public License along with this program. If not, see
21			* <http://www.gnu.org/licenses/>.
22	root	1.40	*
23	root	1.28	* The authors can be reached via e-mail to <support@deliantra.net>
24	pippijn	1.17	*/
25	elmex	1.1
26			/* This file contains animation related code. */
27
28			#include <global.h>
29			#include <stdio.h>
30
31	root	1.33	static animhash_t animhash;
32	root	1.22	std::vector<animation> animations;
33
34	root	1.7	void
35	root	1.22	animation::resize (int new_size)
36	root	1.4	{
37	root	1.29	sfree<faceidx> (faces, num_animations);
38	root	1.22	num_animations = new_size;
39			faces = salloc<faceidx> (num_animations);
40	elmex	1.1	}
41
42	root	1.22	animation &
43			animation::create (const char *name, uint8 frames, uint8 facings)
44	root	1.7	{
45	root	1.23	if (animations.size () == MAXANIMNUM)
46			cleanup ("trying to create new animation, but MAXANIMNUM animations in use.");
47
48	root	1.22	animations.push_back (animation ());
49			animation &anim = animations.back ();
50	root	1.7
51	root	1.22	anim.number = animations.size () - 1;
52			anim.name = name;
53			anim.num_animations = frames;
54			anim.facings = facings;
55			anim.faces = salloc<faceidx> (frames);
56	root	1.7
57	root	1.22	animhash.insert (std::make_pair (anim.name, anim.number));
58	root	1.7
59	root	1.22	return anim;
60			}
61	root	1.20
62	root	1.41	/* Tries to find the animation id that matches name. Returns an integer match
63			* 0 if no match found (animation 0 is initialised as the 'bug' face
64			*/
65	root	1.22	animation &
66			animation::find (const char *name)
67			{
68			if (!name)
69			return animations [0];
70	root	1.20
71	root	1.22	animhash_t::iterator i = animhash.find (name);
72			return animations [i == animhash.end () ? 0 : i->second];
73	elmex	1.1	}
74
75	root	1.22	void
76	root	1.34	init_anim ()
77	root	1.7	{
78	root	1.22	animation &anim0 = animation::create ("none", 1, 0);
79			anim0.faces [0] = 0;
80	elmex	1.1	}
81
82			/*
83			* animate_object(object) updates the face-variable of an object.
84			* If the object is the head of a multi-object, all objects are animated.
85			* op is the object to animate.
86			* dir is the direction the object is facing. This is generally same as
87			* op->direction, but in some cases, op->facing is used instead - the
88			* caller has a better idea which one it really wants to be using,
89			* so let it pass along the right one.
90			*/
91	root	1.7	void
92			animate_object (object *op, int dir)
93			{
94	root	1.12	int max_state; /* Max animation state object should be drawn in */
95			int base_state; /* starting index # to draw from */
96	root	1.7
97	root	1.44	if (!op->animation_id \|\| !op->anim_frames ())
98	root	1.7	{
99	root	1.9	LOG (llevError, "Object %s lacks animation.\n", op->debug_desc ());
100	root	1.37	op->clr_flag (FLAG_ANIMATE);
101	root	1.7	return;
102			}
103	root	1.9
104	root	1.24	if (op->head_ () != op)
105	root	1.7	{
106			dir = op->head->direction;
107
108	root	1.44	if (op->anim_frames () == op->head->anim_frames ())
109	root	1.7	op->state = op->head->state;
110			else
111			++op->state;
112			}
113			else
114	root	1.9	++op->state; /* increase draw state */
115	root	1.7
116			/* If object is turning, then max animation state is half through the
117			* animations. Otherwise, we can use all the animations.
118			*/
119	root	1.44	max_state = op->anim_frames () / op->anim_facings ();
120	root	1.7	base_state = 0;
121	root	1.20	/* at least in the older animations that used is_turning, the first half
122	root	1.7	* of the animations were left facing, the second half right facing.
123			* Note in old the is_turning, it was set so that the animation for a monster
124			* was always towards the enemy - now it is whatever direction the monster
125			* is facing.
126			*/
127	root	1.9
128	root	1.31	if (dir > 0)
129	root	1.44	switch (op->anim_facings ())
130	root	1.31	{
131	root	1.44	case 2: base_state = ((dir - 1) / (8 / 2)) * (op->anim_frames () / 2); break;
132			case 4: base_state = ((dir - 1) / (8 / 4)) * (op->anim_frames () / 4); break;
133			case 8: base_state = ((dir - 1) / (8 / 8)) * (op->anim_frames () / 8); break;
134	root	1.31	}
135			else
136			base_state = 0;
137	root	1.7
138			/* If beyond drawable states, reset */
139			if (op->state >= max_state)
140			op->state = 0;
141
142	root	1.44	op->set_anim_frame (op->state + base_state);
143	root	1.7
144			if (op->face == blank_face)
145			op->invisible = 1;
146	root	1.21
147	root	1.7	/* This block covers monsters (eg, pixies) which are supposed to
148			* cycle from visible to invisible and back to being visible.
149			* as such, disable it for players, as then players would become
150			* visible.
151			*/
152	root	1.26	else if (op->type != PLAYER && op->arch->flag [FLAG_ALIVE])
153	root	1.7	{
154	root	1.21	if (op->face == 0)
155	root	1.7	{
156			op->invisible = 1;
157	root	1.37	op->clr_flag (FLAG_ALIVE);
158	root	1.7	}
159			else
160			{
161			op->invisible = 0;
162	root	1.37	op->set_flag (FLAG_ALIVE);
163	root	1.7	}
164			}
165
166			if (op->more)
167			animate_object (op->more, dir);
168
169			/* update_object will also recursively update all the pieces.
170			* as such, we call it last, and only call it for the head
171			* piece, and not for the other tail pieces.
172			*/
173	root	1.24	if (op->head_ () == op)
174	root	1.7	update_object (op, UP_OBJ_FACE);
175	elmex	1.1	}
176	root	1.22