1 /*

2 goat3d - 3D scene, character, and animation file format library.

3 Copyright (C) 2013-2014 John Tsiombikas <nuclear@member.fsf.org>

4

5 This program is free software: you can redistribute it and/or modify

6 it under the terms of the GNU Lesser General Public License as published by

7 the Free Software Foundation, either version 3 of the License, or

8 (at your option) any later version.

9

10 This program is distributed in the hope that it will be useful,

11 but WITHOUT ANY WARRANTY; without even the implied warranty of

12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

13 GNU Lesser General Public License for more details.

14

15 You should have received a copy of the GNU Lesser General Public License

16 along with this program. If not, see <http://www.gnu.org/licenses/>.

17 */

18 #include <algorithm>

19 #include <string.h>

20 #include "node.h"

21

22 using namespace g3dimpl;

23

24 Node::Node()

25 {

26 obj = 0;

27 bbox_valid = false;

28 }

29

30 void Node::set_object(Object *obj)

31 {

32 this->obj = obj;

33 bbox_valid = false;

34 }

35

36 Object *Node::get_object()

37 {

38 bbox_valid = false;

39 return obj;

40 }

41

42 const Object *Node::get_object() const

43 {

44 return obj;

45 }

46

47 const AABox &Node::get_bounds() const

48 {

49 if(!bbox_valid) {

50 Matrix4x4 xform;

51 get_xform(0, &xform);

52 bbox = obj ? obj->get_bounds(xform) : AABox();

53

54 for(int i=0; i<get_children_count(); i++) {

55 bbox = aabox_union(bbox, ((Node*)get_child(i))->get_bounds());

56 }

57 bbox_valid = true;

58 }

59

60 return bbox;

61 }

62

63 void g3dimpl::delete_node_tree(Node *n)

64 {

65 if(!n) return;

66

67 for(int i=0; i<n->get_children_count(); i++) {

68 delete_node_tree((Node*)n->get_child(i));

69 }

70 delete n;

71 }