X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=laserbrain_demo;a=blobdiff_plain;f=src%2Fmetascene.cc;h=fd4569b17beaa9b888a2277660952d3951ebb324;hp=399295f3a8a79012f4841f3dce6d136caad37c68;hb=d29eba477666f0753170d9ad549a4715ce071d04;hpb=26c1717925471539b9745cce6275b218a47147cd

diff --git a/src/metascene.cc b/src/metascene.cc
index 399295f..fd4569b 100644
--- a/src/metascene.cc
+++ b/src/metascene.cc
@@ -1,3 +1,14 @@
+/*! \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"
@@ -6,7 +17,7 @@
 #include "logger.h"
 #include "app.h"
 
-#ifdef WIN32
+#if defined(WIN32) || defined(__WIN32__)
 #include <malloc.h>
 #else
 #include <alloca.h>
@@ -21,6 +32,7 @@ struct MaterialEdit {
 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);
@@ -31,14 +43,15 @@ static void print_scene_graph(SceneNode *n, int level);
 MetaScene::MetaScene()
 {
 	walk_mesh = 0;
+	music = 0;
 }
 
 MetaScene::~MetaScene()
 {
 	delete walk_mesh;
+	delete music;
 }
 
-
 bool MetaScene::load(const char *fname)
 {
 	struct ts_node *root = ts_load(fname);
@@ -74,6 +87,57 @@ void MetaScene::draw() const
 	}
 }
 
+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;
+}
+
 static bool proc_node(MetaScene *mscn, struct ts_node *node)
 {
 	struct ts_node *c = node->child_list;
@@ -94,6 +158,9 @@ static bool proc_node(MetaScene *mscn, struct ts_node *node)
 		if(match && replace) {
 			mscn->datamap.map(match, replace);
 		}
+
+	} else if(strcmp(node->name, "music") == 0) {
+		return proc_music(mscn, node);
 	}
 
 	return true;
@@ -102,36 +169,68 @@ static bool proc_node(MetaScene *mscn, struct ts_node *node)
 
 
 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;
@@ -184,6 +283,30 @@ bool MetaScene::scene_loaded(Scene *newscn)
 		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
@@ -255,12 +378,43 @@ static void apply_mtledit(Scene *scn, const MaterialEdit &med)
 	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...