X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=laserbrain_demo;a=blobdiff_plain;f=src%2Fmetascene.cc;h=9c882495c25d282d163b9f3d5fd571c3c60e2ee1;hp=6059664a66b51b2b08844504665fda608986fee9;hb=d47a663825bd358d2165c1a4b040cc828aeb4991;hpb=5d44043a65106ff411abeaaaa80c732a47284024

diff --git a/src/metascene.cc b/src/metascene.cc
index 6059664..9c88249 100644
--- a/src/metascene.cc
+++ b/src/metascene.cc
@@ -1,3 +1,13 @@
+/*! \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>
@@ -6,22 +16,40 @@
 #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);
@@ -32,14 +60,15 @@ 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);
@@ -61,12 +90,48 @@ 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
 {
 	int nscn = scenes.size();
@@ -75,6 +140,57 @@ 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;
@@ -95,6 +211,9 @@ 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;
@@ -108,6 +227,9 @@ struct SceneData {
 	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");
@@ -161,7 +283,7 @@ static bool proc_scenefile(MetaScene *mscn, struct ts_node *node)
 			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;
@@ -259,7 +381,6 @@ static bool proc_mtledit(MetaScene *mscn, MaterialEdit *med, struct ts_node *nod
 	if(amtl && amtl->val.type == TS_STRING) {
 		restr = amtl->val.str;
 	}
-
 	med->name_re = std::regex(restr);
 
 	node = node->child_list;
@@ -288,16 +409,37 @@ static bool proc_mtledit(MetaScene *mscn, MaterialEdit *med, struct ts_node *nod
 				}
 			}
 
-			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;
@@ -315,16 +457,56 @@ static void apply_mtledit(Scene *scn, const MaterialEdit &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;
 	}
 }