1.1 --- a/src/goat3d_writexml.cc	Sun Dec 08 03:00:25 2013 +0200
     1.2 +++ b/src/goat3d_writexml.cc	Sat Dec 28 06:47:39 2013 +0200
     1.3 @@ -1,12 +1,17 @@
     1.4 +#include <list>
     1.5  #include <stdarg.h>
     1.6  #include "goat3d_impl.h"
     1.7 +#include "anim/anim.h"
     1.8  #include "log.h"
     1.9  
    1.10 +using namespace g3dimpl;
    1.11 +
    1.12  static bool write_material(const Scene *scn, goat3d_io *io, const Material *mat, int level);
    1.13  static bool write_mesh(const Scene *scn, goat3d_io *io, const Mesh *mesh, int idx, int level);
    1.14  static bool write_light(const Scene *scn, goat3d_io *io, const Light *light, int level);
    1.15  static bool write_camera(const Scene *scn, goat3d_io *io, const Camera *cam, int level);
    1.16  static bool write_node(const Scene *scn, goat3d_io *io, const Node *node, int level);
    1.17 +static bool write_node_anim(goat3d_io *io, const XFormNode *node, int level);
    1.18  static void xmlout(goat3d_io *io, int level, const char *fmt, ...);
    1.19  
    1.20  bool Scene::savexml(goat3d_io *io) const
    1.21 @@ -38,6 +43,39 @@
    1.22  	return true;
    1.23  }
    1.24  
    1.25 +static void collect_nodes(std::list<const XFormNode*> *res, const XFormNode *node)
    1.26 +{
    1.27 +	if(!node) return;
    1.28 +
    1.29 +	res->push_back(node);
    1.30 +
    1.31 +	for(int i=0; i<node->get_children_count(); i++) {
    1.32 +		collect_nodes(res, node->get_child(i));
    1.33 +	}
    1.34 +}
    1.35 +
    1.36 +bool Scene::save_anim_xml(const XFormNode *node, goat3d_io *io) const
    1.37 +{
    1.38 +	xmlout(io, 0, "<anim>\n");
    1.39 +
    1.40 +	const char *anim_name = node->get_animation_name();
    1.41 +	if(anim_name && *anim_name) {
    1.42 +		xmlout(io, 1, "<name string=\"%s\"/>\n", anim_name);
    1.43 +	}
    1.44 +
    1.45 +	std::list<const XFormNode*> allnodes;
    1.46 +	collect_nodes(&allnodes, node);
    1.47 +
    1.48 +	std::list<const XFormNode*>::const_iterator it = allnodes.begin();
    1.49 +	while(it != allnodes.end()) {
    1.50 +		const XFormNode *n = *it++;
    1.51 +		write_node_anim(io, n, 1);
    1.52 +	}
    1.53 +
    1.54 +	xmlout(io, 0, "</anim>\n");
    1.55 +	return true;
    1.56 +}
    1.57 +
    1.58  static bool write_material(const Scene *scn, goat3d_io *io, const Material *mat, int level)
    1.59  {
    1.60  	xmlout(io, level, "<mtl>\n");
    1.61 @@ -100,7 +138,7 @@
    1.62  	xmlout(io, level, "<node>\n");
    1.63  	xmlout(io, level + 1, "<name string=\"%s\"/>\n", node->get_name());
    1.64  
    1.65 -	XFormNode *parent = node->get_parent();
    1.66 +	const XFormNode *parent = node->get_parent();
    1.67  	if(parent) {
    1.68  		xmlout(io, level + 1, "<parent string=\"%s\"/>\n", parent->get_name());
    1.69  	}
    1.70 @@ -140,6 +178,55 @@
    1.71  	return true;
    1.72  }
    1.73  
    1.74 +static bool write_node_anim(goat3d_io *io, const XFormNode *node, int level)
    1.75 +{
    1.76 +	static const char *attr_names[] = { "position", "rotation", "scaling" };
    1.77 +	struct anm_node *anode = node->get_libanim_node();
    1.78 +	struct anm_animation *anim = anm_get_active_animation(anode, 0);
    1.79 +
    1.80 +	if(!anode || !anim) {
    1.81 +		return false;
    1.82 +	}
    1.83 +
    1.84 +	struct anm_track *trk[4];
    1.85 +
    1.86 +	for(int i=0; i<3; i++) {	// 3 attributes
    1.87 +		switch(i) {
    1.88 +		case 0:	// position
    1.89 +			trk[0] = anim->tracks + ANM_TRACK_POS_X;
    1.90 +			trk[1] = anim->tracks + ANM_TRACK_POS_Y;
    1.91 +			trk[2] = anim->tracks + ANM_TRACK_POS_Z;
    1.92 +			trk[3] = 0;
    1.93 +			break;
    1.94 +
    1.95 +		case 1:	// rotation
    1.96 +			trk[0] = anim->tracks + ANM_TRACK_ROT_X;
    1.97 +			trk[1] = anim->tracks + ANM_TRACK_ROT_Y;
    1.98 +			trk[2] = anim->tracks + ANM_TRACK_ROT_Z;
    1.99 +			trk[3] = anim->tracks + ANM_TRACK_ROT_W;
   1.100 +			break;
   1.101 +
   1.102 +		case 2:	// scaling
   1.103 +			trk[0] = anim->tracks + ANM_TRACK_SCL_X;
   1.104 +			trk[1] = anim->tracks + ANM_TRACK_SCL_Y;
   1.105 +			trk[2] = anim->tracks + ANM_TRACK_SCL_Z;
   1.106 +			trk[3] = 0;
   1.107 +		}
   1.108 +
   1.109 +		if(trk[0]->count <= 0) {
   1.110 +			continue;	// skip tracks without any keyframes
   1.111 +		}
   1.112 +
   1.113 +		xmlout(io, level + 1, "<track>\n");
   1.114 +		xmlout(io, level + 2, "<node string=\"%s\"/>\n", node->get_name());
   1.115 +		xmlout(io, level + 2, "<attr string=\"%s\"/>\n", attr_names[i]);
   1.116 +
   1.117 +		// TODO cont: move all the keyframe retreival to XFormNode and use that...
   1.118 +
   1.119 +		xmlout(io, level + 1, "</track>\n");
   1.120 +	}
   1.121 +	return true;
   1.122 +}
   1.123  
   1.124  static void xmlout(goat3d_io *io, int level, const char *fmt, ...)
   1.125  {