git.rot13.org Git - simavr/blob - examples/shared/libc3/src/c3transform.c

   1 /*
   2         c3transform.c
   3
   4         Copyright 2008-2012 Michel Pollet <buserror@gmail.com>
   5
   6         This file is part of libc3.
   7
   8         libc3 is free software: you can redistribute it and/or modify
   9         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
  13         libc3 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 GNU General Public License
  19         along with libc3.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22
  23 #include "c3object.h"
  24
  25 c3transform_p
  26 c3transform_new(
  27                 c3object_p o )
  28 {
  29         c3transform_p res = malloc(sizeof(*res));
  30         res->matrix = identity3D();
  31         res->object = o;
  32         res->name = NULL;
  33         c3transform_array_add(&o->transform, res);
  34         return res;
  35 }
  36
  37 void
  38 c3transform_dispose(
  39                 c3transform_p t )
  40 {
  41         if (t->object) {
  42                 for (int oi = 0; oi < t->object->transform.count; oi++)
  43                         if (t->object->transform.e[oi] == t) {
  44                                 c3transform_array_delete(&t->object->transform, oi, 1);
  45                                 c3object_set_dirty(t->object, true);
  46                                 break;
  47                         }
  48                 t->object = NULL;
  49         }
  50         str_free(t->name);
  51         free(t);
  52 }
  53
  54 void
  55 c3transform_set(
  56                 c3transform_p t,
  57                 const c3mat4p m )
  58 {
  59         if (c3mat4_equal(m, &t->matrix))
  60                 return;
  61         t->matrix = *m;
  62         c3object_set_dirty(t->object, true);
  63 }