+/*! \file
+ * \brief Metascene implementation
+ *
+ * Loading starts at `MetaScene::load`, which calls `ts_load` (libtreestore)
+ * to load the metascene description tree into memory. Then `proc_node` is
+ * called at the root to recursively process the tree. `scenefile` nodes are
+ * handed over to `proc_scenefile`, which will trigger scene loading for any
+ * nodes with a `file` attribute. Scene loading is handled by requesting the
+ * filename from the scene resource manager, which is of type [SceneSet](\ref SceneSet).
+ */
+#include <assert.h>
#include <string>
#include <regex>
#include "metascene.h"
#include "scene.h"
+#include "objmesh.h"
#include "treestore.h"
#include "logger.h"
#include "app.h"
+#include "dbg_gui.h"
-#ifdef WIN32
+#if defined(WIN32) || defined(__WIN32__)
#include <malloc.h>
#else
#include <alloca.h>
#endif
-struct MaterialEdit {
- std::regex name_re;
+enum MaterialEditType {
+ MTL_EDIT_TEXTURE,
+ MTL_EDIT_MIRROR
+};
+
+struct MaterialEditTexture {
int attr;
Texture *tex;
};
+struct MaterialEditMirror {
+ float reflectivity;
+};
+
+struct MaterialEdit {
+ std::regex name_re;
+ MaterialEditType type;
+
+ MaterialEditTexture tex;
+ MaterialEditMirror mirror;
+};
+
static bool proc_node(MetaScene *mscn, struct ts_node *node);
static bool proc_scenefile(MetaScene *mscn, struct ts_node *node);
static bool proc_mtledit(MetaScene *mscn, MaterialEdit *med, struct ts_node *node);
+static bool proc_music(MetaScene *mscn, struct ts_node *node);
static void apply_mtledit(Scene *scn, const MaterialEdit &med);
static void apply_mtledit(Material *mtl, const MaterialEdit &med);
static struct ts_attr *attr_inscope(struct ts_node *node, const char *name);
MetaScene::MetaScene()
{
walk_mesh = 0;
+ music = 0;
+ mirrors = 0;
}
MetaScene::~MetaScene()
{
delete walk_mesh;
-}
+ delete music;
+ while(mirrors) {
+ FlatMirror *m = mirrors;
+ mirrors = mirrors->next;
+ delete m;
+ }
+}
bool MetaScene::load(const char *fname)
{
void MetaScene::update(float dt)
{
+ bool expanded;
+ static char text[256];
+ if(debug_gui) {
+ ImGui::Begin("MetaScene nodes", 0, 0);
+ ImGui::Columns(2);
+
+ static bool once;
+ if(!once) {
+ float x = ImGui::GetColumnOffset(1);
+ ImGui::SetColumnOffset(1, x * 1.7);
+ once = true;
+ }
+ }
+
int nscn = scenes.size();
for(int i=0; i<nscn; i++) {
+
+ if(debug_gui) {
+ if(scenes[i]->name.empty()) {
+ sprintf(text, "scene %3d", i);
+ } else {
+ sprintf(text, "scene %3d: %s", i, scenes[i]->name.c_str());
+ }
+ expanded = parent_expanded = ImGui::TreeNode(text);
+ ImGui::NextColumn();
+ ImGui::NextColumn();
+ }
+
scenes[i]->update(dt);
+
+ if(debug_gui && expanded) {
+ ImGui::TreePop();
+ }
+ }
+
+ if(debug_gui) {
+ ImGui::Columns(1);
+ ImGui::End();
}
}
+// XXX not used, renderer draws
void MetaScene::draw() const
{
+ error_log("Don't call MetaScene::draw, use the Renderer\n");
int nscn = scenes.size();
for(int i=0; i<nscn; i++) {
scenes[i]->draw();
}
}
+SceneNode *MetaScene::find_node(const char *name) const
+{
+ int num = scenes.size();
+ for(int i=0; i<num; i++) {
+ SceneNode *n = scenes[i]->find_node(name);
+ if(n) return n;
+ }
+ return 0;
+}
+
+SceneNode *MetaScene::match_node(const char *qstr) const
+{
+ int num = scenes.size();
+ for(int i=0; i<num; i++) {
+ SceneNode *n = scenes[i]->match_node(qstr);
+ if(n) return n;
+ }
+ return 0;
+}
+
+std::list<SceneNode*> MetaScene::match_nodes(const char *qstr) const
+{
+ std::list<SceneNode*> res;
+ int num = scenes.size();
+ for(int i=0; i<num; i++) {
+ std::list<SceneNode*> tmp = scenes[i]->match_nodes(qstr);
+ if(!tmp.empty()) {
+ res.splice(res.end(), tmp);
+ }
+ }
+ return std::move(res);
+}
+
+Scene *MetaScene::extract_nodes(const char *qstr)
+{
+ Scene *scn = 0;
+ int nscn = scenes.size();
+ for(int i=0; i<nscn; i++) {
+ Scene *tmp = scenes[i]->extract_nodes(qstr);
+ if(tmp) {
+ if(!scn) {
+ scn = tmp;
+ } else {
+ scn->merge(tmp);
+ delete tmp;
+ }
+ }
+ }
+ return scn;
+}
+
+int MetaScene::calc_mirror_planes()
+{
+ int num_mirrors = 0;
+ while(mirrors) {
+ FlatMirror *m = mirrors;
+ mirrors = mirrors->next;
+ delete m;
+ }
+ mirrors = 0;
+ objmirror.clear();
+
+ int numscn = scenes.size();
+ for(int i=0; i<numscn; i++) {
+ Scene *scn = scenes[i];
+
+ int numobj = scn->objects.size();
+ for(int j=0; j<numobj; j++) {
+ Object *obj = scn->objects[j];
+
+ if(obj->mtl.flat_mirror && obj->get_type() == OBJ_MESH) {
+ const Mesh *mesh = ((ObjMesh*)obj)->mesh;
+ if(!mesh) continue;
+
+ FlatMirror *mir = new FlatMirror;
+ mir->reflect = obj->mtl.reflect;
+
+ if(obj->mtl.flat_mirror == MTL_MIRROR_AUTO) {
+ // assume the object is actually flat, so grab the first triangle and make a plane
+ Triangle face = Triangle(0, (const Vec3*)mesh->get_attrib_data(MESH_ATTR_VERTEX),
+ mesh->get_index_data());
+ face.calc_normal();
+
+ mir->plane.pt = face.v[0];
+ mir->plane.normal = face.normal;
+ } else {
+ }
+
+ // check to see if we have found this mirror plane already
+ bool found = false;
+ FlatMirror *node = mirrors;
+ while(node) {
+ if(1.0f - dot(mir->plane.normal, node->plane.normal) < 1e-4f &&
+ fabs(dot(mir->plane.normal, normalize(mir->plane.pt - node->plane.pt))) < 1e-4) {
+ found = true;
+ break;
+ }
+ node = node->next;
+ }
+
+ if(!found) {
+ mir->next = mirrors;
+ mirrors = mir;
+
+ objmirror[obj] = mir; // associate with object
+ ++num_mirrors;
+ } else {
+ delete mir;
+ }
+ }
+ }
+ }
+
+ return num_mirrors;
+}
+
static bool proc_node(MetaScene *mscn, struct ts_node *node)
{
struct ts_node *c = node->child_list;
if(match && replace) {
mscn->datamap.map(match, replace);
}
+
+ } else if(strcmp(node->name, "music") == 0) {
+ return proc_music(mscn, node);
}
return true;
struct SceneData {
- std::string walkmesh_regexp;
+ MetaScene *meta;
+ std::string walkmesh_regexp, spawn_regexp;
std::vector<MaterialEdit> mtledit;
};
+/*! Processes a `scenefile` node. And kicks off scene loading (if necessary) by
+ * calling `SceneSet::get`.
+ */
static bool proc_scenefile(MetaScene *mscn, struct ts_node *node)
{
const char *fname = ts_get_attr_str(node, "file");
if(fname) {
SceneData *sdat = new SceneData;
+ sdat->meta = mscn;
// datapath
struct ts_attr *adpath = attr_inscope(node, "datapath");
if(adpath && adpath->val.type == TS_STRING) {
- info_log("adding data path: %s\n", adpath->val.str);
mscn->datamap.set_path(adpath->val.str);
}
+ // strip path
+ struct ts_attr *aspath = attr_inscope(node, "strip_path");
+ if(aspath && aspath->val.type == TS_NUMBER) {
+ mscn->datamap.set_strip(aspath->val.inum);
+ }
+
// walkmesh
struct ts_attr *awmesh = attr_inscope(node, "walkmesh");
if(awmesh && awmesh->val.type == TS_STRING) {
sdat->walkmesh_regexp = std::string(awmesh->val.str);
}
+ // spawn node
+ struct ts_attr *awspawn = attr_inscope(node, "spawn");
+ if(awspawn) {
+ switch(awspawn->val.type) {
+ case TS_VECTOR:
+ mscn->start_pos = Vec3(awspawn->val.vec[0], awspawn->val.vec[1],
+ awspawn->val.vec[2]);
+ break;
+
+ case TS_STRING:
+ default:
+ sdat->spawn_regexp = std::string(awspawn->val.str);
+ }
+ }
+ if((awspawn = attr_inscope(node, "spawn_rot")) && awspawn->val.type == TS_VECTOR) {
+ Quat rot;
+ rot.rotate(Vec3(1, 0, 0), deg_to_rad(awspawn->val.vec[0]));
+ rot.rotate(Vec3(0, 1, 0), deg_to_rad(awspawn->val.vec[1]));
+ rot.rotate(Vec3(0, 0, 1), deg_to_rad(awspawn->val.vec[2]));
+ mscn->start_rot = rot;
+ }
+
int namesz = mscn->datamap.lookup(fname, 0, 0);
char *namebuf = (char*)alloca(namesz + 1);
if(mscn->datamap.lookup(fname, namebuf, namesz + 1)) {
fname = namebuf;
}
- // material edits
+ // material edits are kept in a list to be applied when the scene has been loaded
struct ts_node *child = node->child_list;
while(child) {
MaterialEdit medit;
delete wscn;
}
+ // extract the spawn node
+ if(!sdat->spawn_regexp.empty() && (wscn = newscn->extract_nodes(sdat->spawn_regexp.c_str()))) {
+
+ int nmeshes = wscn->meshes.size();
+ int nnodes = wscn->nodes ? wscn->nodes->get_num_children() : 0;
+
+ if(nmeshes) {
+ Vec3 pos;
+ for(int i=0; i<nmeshes; i++) {
+ const Sphere &bsph = wscn->meshes[i]->get_bsphere();
+ pos += bsph.center;
+ }
+ pos /= (float)nmeshes;
+ sdat->meta->start_pos = pos;
+
+ } else if(nnodes) {
+ // just use the first one
+ SceneNode *first = wscn->nodes->get_child(0);
+ sdat->meta->start_pos = first->get_position();
+ sdat->meta->start_rot = first->get_rotation();
+ }
+ delete wscn;
+ }
+
int num_medits = sdat->mtledit.size();
for(int i=0; i<num_medits; i++) {
// perform material edits
if(amtl && amtl->val.type == TS_STRING) {
restr = amtl->val.str;
}
-
med->name_re = std::regex(restr);
node = node->child_list;
}
}
- med->attr = textype;
+ med->tex.attr = textype;
if(!afile || !afile->val.str || !*afile->val.str) {
// remove
- med->tex = 0;
+ med->tex.tex = 0;
} else {
- med->tex = texman.get_texture(afile->val.str, TEX_2D, &mscn->datamap);
+ med->tex.tex = texman.get_texture(afile->val.str, TEX_2D, &mscn->datamap);
}
+
+ med->type = MTL_EDIT_TEXTURE;
+ break;
+ }
+
+ if(strcmp(cn->name, "mirror") == 0) {
+ // make this object a flat mirror (hopefully the object is flat otherwise this won't work)
+ float refl = 1.0f;
+
+ struct ts_attr *arefl = ts_get_attr(cn, "reflect");
+ if(arefl) {
+ if(arefl->val.type == TS_NUMBER) {
+ refl = arefl->val.fnum;
+ } else {
+ error_log("invalid reflect attribute in mirror mtledit: %s\n", arefl->val.str);
+ continue;
+ }
+ }
+
+ med->type = MTL_EDIT_MIRROR;
+ med->mirror.reflectivity = refl;
+ break;
}
- // TODO add more edit modes
}
return true;
int nobj = scn->objects.size();
for(int i=0; i<nobj; i++) {
Object *obj = scn->objects[i];
- if(std::regex_match(obj->get_name(), med.name_re)) {
+ if(std::regex_match(obj->mtl.name, med.name_re)) {
apply_mtledit(&obj->mtl, med);
}
}
}
+static bool proc_music(MetaScene *mscn, struct ts_node *node)
+{
+ const char *fname = ts_get_attr_str(node, "file");
+ if(fname) {
+ SceneData *sdat = new SceneData;
+ sdat->meta = mscn;
+
+ // datapath
+ struct ts_attr *adpath = attr_inscope(node, "datapath");
+ if(adpath && adpath->val.type == TS_STRING) {
+ mscn->datamap.set_path(adpath->val.str);
+ }
+
+ int namesz = mscn->datamap.lookup(fname, 0, 0);
+ char *namebuf = (char*)alloca(namesz + 1);
+ if(mscn->datamap.lookup(fname, namebuf, namesz + 1)) {
+ fname = namebuf;
+ }
+
+ OggVorbisStream *ovstream = new OggVorbisStream;
+ if(!ovstream->open(fname)) {
+ delete ovstream;
+ return false;
+ }
+
+ delete mscn->music;
+ mscn->music = ovstream;
+ }
+ return true;
+}
+
static void apply_mtledit(Material *mtl, const MaterialEdit &med)
{
// TODO more edit modes...
- if(med.tex) {
- mtl->add_texture(med.tex, med.attr);
- } else {
- Texture *tex = mtl->stdtex[med.attr];
- if(tex) {
- mtl->remove_texture(tex);
+ switch(med.type) {
+ case MTL_EDIT_TEXTURE:
+ if(med.tex.tex) {
+ mtl->add_texture(med.tex.tex, med.tex.attr);
+ } else {
+ Texture *tex = mtl->stdtex[med.tex.attr];
+ if(tex) {
+ mtl->remove_texture(tex);
+ }
}
+ break;
+
+ case MTL_EDIT_MIRROR:
+ mtl->flat_mirror = med.mirror.reflectivity > 1e-6;
+ mtl->reflect = med.mirror.reflectivity;
+ break;
}
}
projects / laserbrain_demo / blobdiff