server/common/anim.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 *
 * 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 || !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:	1.42
Committed:	Wed Nov 16 23:41:59 2016 UTC (7 years, 6 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.41:	+1 -1 lines
Log Message:	copyright update 2016
#	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	1.42	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	root	1.35	* Copyright (©) 2002-2003 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992 Frank Tore Johansen
7	root	1.40	*
8	root	1.32	* 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	root	1.40	*
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	root	1.40	*
18	root	1.32	* 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	root	1.40	*
22	root	1.28	* The authors can be reached via e-mail to <support@deliantra.net>
23	pippijn	1.17	*/
24	elmex	1.1
25			/* This file contains animation related code. */
26
27			#include <global.h>
28			#include <stdio.h>
29
30	root	1.33	static animhash_t animhash;
31	root	1.22	std::vector<animation> animations;
32
33	root	1.7	void
34	root	1.22	animation::resize (int new_size)
35	root	1.4	{
36	root	1.29	sfree<faceidx> (faces, num_animations);
37	root	1.22	num_animations = new_size;
38			faces = salloc<faceidx> (num_animations);
39	elmex	1.1	}
40
41	root	1.22	animation &
42			animation::create (const char *name, uint8 frames, uint8 facings)
43	root	1.7	{
44	root	1.23	if (animations.size () == MAXANIMNUM)
45			cleanup ("trying to create new animation, but MAXANIMNUM animations in use.");
46
47	root	1.22	animations.push_back (animation ());
48			animation &anim = animations.back ();
49	root	1.7
50	root	1.22	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	root	1.7
56	root	1.22	animhash.insert (std::make_pair (anim.name, anim.number));
57	root	1.7
58	root	1.22	return anim;
59			}
60	root	1.20
61	root	1.41	/* 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	root	1.22	animation &
65			animation::find (const char *name)
66			{
67			if (!name)
68			return animations [0];
69	root	1.20
70	root	1.22	animhash_t::iterator i = animhash.find (name);
71			return animations [i == animhash.end () ? 0 : i->second];
72	elmex	1.1	}
73
74	root	1.22	void
75	root	1.34	init_anim ()
76	root	1.7	{
77	root	1.22	animation &anim0 = animation::create ("none", 1, 0);
78			anim0.faces [0] = 0;
79	elmex	1.1	}
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	root	1.7	void
91			animate_object (object *op, int dir)
92			{
93	root	1.12	int max_state; /* Max animation state object should be drawn in */
94			int base_state; /* starting index # to draw from */
95	root	1.7
96			if (!op->animation_id \|\| !NUM_ANIMATIONS (op))
97			{
98	root	1.9	LOG (llevError, "Object %s lacks animation.\n", op->debug_desc ());
99	root	1.37	op->clr_flag (FLAG_ANIMATE);
100	root	1.7	return;
101			}
102	root	1.9
103	root	1.24	if (op->head_ () != op)
104	root	1.7	{
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	root	1.9	++op->state; /* increase draw state */
114	root	1.7
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	root	1.20	/* at least in the older animations that used is_turning, the first half
121	root	1.7	* 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	root	1.9
127	root	1.31	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	root	1.7
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	root	1.21
146	root	1.7	/* 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	root	1.26	else if (op->type != PLAYER && op->arch->flag [FLAG_ALIVE])
152	root	1.7	{
153	root	1.21	if (op->face == 0)
154	root	1.7	{
155			op->invisible = 1;
156	root	1.37	op->clr_flag (FLAG_ALIVE);
157	root	1.7	}
158			else
159			{
160			op->invisible = 0;
161	root	1.37	op->set_flag (FLAG_ALIVE);
162	root	1.7	}
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	root	1.24	if (op->head_ () == op)
173	root	1.7	update_object (op, UP_OBJ_FACE);
174	elmex	1.1	}
175	root	1.22