goat3d

annotate src/scene.cc @ 19:b35427826b60

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- added XML format reading support - wrote a rudimentary version of goatview
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 27 Sep 2013 06:58:37 +0300
parents 1d85d7dd0038
children 498ca7ac7047
rev   line source
nuclear@14 1 #include <stdarg.h>
nuclear@0 2 #include "goat3d.h"
nuclear@0 3 #include "goat3d_impl.h"
nuclear@9 4 #include "chunk.h"
nuclear@0 5
nuclear@0 6 Scene::Scene()
nuclear@0 7 : name("unnamed"), ambient(0.05, 0.05, 0.05)
nuclear@0 8 {
nuclear@0 9 }
nuclear@0 10
nuclear@0 11 Scene::~Scene()
nuclear@0 12 {
nuclear@0 13 clear();
nuclear@0 14 }
nuclear@0 15
nuclear@0 16 void Scene::clear()
nuclear@0 17 {
nuclear@0 18 for(size_t i=0; i<materials.size(); i++) {
nuclear@0 19 delete materials[i];
nuclear@0 20 }
nuclear@0 21 materials.clear();
nuclear@0 22
nuclear@0 23 for(size_t i=0; i<meshes.size(); i++) {
nuclear@0 24 delete meshes[i];
nuclear@0 25 }
nuclear@0 26 meshes.clear();
nuclear@0 27
nuclear@0 28 for(size_t i=0; i<lights.size(); i++) {
nuclear@0 29 delete lights[i];
nuclear@0 30 }
nuclear@0 31 lights.clear();
nuclear@0 32
nuclear@0 33 for(size_t i=0; i<cameras.size(); i++) {
nuclear@0 34 delete cameras[i];
nuclear@0 35 }
nuclear@0 36 cameras.clear();
nuclear@0 37
nuclear@12 38 for(size_t i=0; i<nodes.size(); i++) {
nuclear@12 39 delete_node_tree(nodes[i]);
nuclear@0 40 }
nuclear@12 41 nodes.clear();
nuclear@0 42
nuclear@0 43 name = "unnamed";
nuclear@0 44 }
nuclear@0 45
nuclear@0 46 void Scene::set_name(const char *name)
nuclear@0 47 {
nuclear@0 48 this->name = name;
nuclear@0 49 }
nuclear@0 50
nuclear@0 51 const char *Scene::get_name() const
nuclear@0 52 {
nuclear@0 53 return name.c_str();
nuclear@0 54 }
nuclear@8 55
nuclear@8 56 void Scene::set_ambient(const Vector3 &amb)
nuclear@8 57 {
nuclear@8 58 ambient = amb;
nuclear@8 59 }
nuclear@8 60
nuclear@8 61 const Vector3 &Scene::get_ambient() const
nuclear@8 62 {
nuclear@8 63 return ambient;
nuclear@8 64 }
nuclear@8 65
nuclear@8 66 void Scene::add_material(Material *mat)
nuclear@8 67 {
nuclear@17 68 if(mat->name.empty()) {
nuclear@17 69 char buf[64];
nuclear@17 70 sprintf(buf, "material%04d", (int)materials.size());
nuclear@17 71 mat->name = std::string(buf);
nuclear@17 72 }
nuclear@8 73 materials.push_back(mat);
nuclear@8 74 }
nuclear@8 75
nuclear@8 76 Material *Scene::get_material(int idx) const
nuclear@8 77 {
nuclear@8 78 return idx >=0 && idx < (int)materials.size() ? materials[idx] : 0;
nuclear@8 79 }
nuclear@8 80
nuclear@8 81 Material *Scene::get_material(const char *name) const
nuclear@8 82 {
nuclear@8 83 for(size_t i=0; i<materials.size(); i++) {
nuclear@8 84 if(materials[i]->name == std::string(name)) {
nuclear@8 85 return materials[i];
nuclear@8 86 }
nuclear@8 87 }
nuclear@8 88 return 0;
nuclear@8 89 }
nuclear@8 90
nuclear@9 91 int Scene::get_material_count() const
nuclear@9 92 {
nuclear@9 93 return (int)materials.size();
nuclear@9 94 }
nuclear@9 95
nuclear@9 96
nuclear@8 97 void Scene::add_mesh(Mesh *mesh)
nuclear@8 98 {
nuclear@17 99 if(mesh->name.empty()) {
nuclear@17 100 char buf[64];
nuclear@17 101 sprintf(buf, "mesh%04d", (int)meshes.size());
nuclear@17 102 mesh->name = std::string(buf);
nuclear@17 103 }
nuclear@8 104 meshes.push_back(mesh);
nuclear@8 105 }
nuclear@8 106
nuclear@8 107 Mesh *Scene::get_mesh(int idx) const
nuclear@8 108 {
nuclear@8 109 return idx >= 0 && idx < (int)meshes.size() ? meshes[idx] : 0;
nuclear@8 110 }
nuclear@8 111
nuclear@8 112 Mesh *Scene::get_mesh(const char *name) const
nuclear@8 113 {
nuclear@8 114 for(size_t i=0; i<meshes.size(); i++) {
nuclear@8 115 if(meshes[i]->name == std::string(name)) {
nuclear@8 116 return meshes[i];
nuclear@8 117 }
nuclear@8 118 }
nuclear@8 119 return 0;
nuclear@8 120 }
nuclear@8 121
nuclear@9 122 int Scene::get_mesh_count() const
nuclear@9 123 {
nuclear@9 124 return (int)meshes.size();
nuclear@9 125 }
nuclear@9 126
nuclear@9 127
nuclear@8 128 void Scene::add_light(Light *light)
nuclear@8 129 {
nuclear@8 130 lights.push_back(light);
nuclear@8 131 }
nuclear@8 132
nuclear@8 133 Light *Scene::get_light(int idx) const
nuclear@8 134 {
nuclear@8 135 return idx >= 0 && idx < (int)lights.size() ? lights[idx] : 0;
nuclear@8 136 }
nuclear@8 137
nuclear@8 138 Light *Scene::get_light(const char *name) const
nuclear@8 139 {
nuclear@8 140 for(size_t i=0; i<lights.size(); i++) {
nuclear@8 141 if(lights[i]->name == std::string(name)) {
nuclear@8 142 return lights[i];
nuclear@8 143 }
nuclear@8 144 }
nuclear@8 145 return 0;
nuclear@8 146 }
nuclear@8 147
nuclear@9 148 int Scene::get_light_count() const
nuclear@9 149 {
nuclear@9 150 return (int)lights.size();
nuclear@9 151 }
nuclear@9 152
nuclear@9 153
nuclear@8 154 void Scene::add_camera(Camera *cam)
nuclear@8 155 {
nuclear@8 156 cameras.push_back(cam);
nuclear@8 157 }
nuclear@8 158
nuclear@8 159 Camera *Scene::get_camera(int idx) const
nuclear@8 160 {
nuclear@8 161 return idx >= 0 && idx < (int)cameras.size() ? cameras[idx] : 0;
nuclear@8 162 }
nuclear@8 163
nuclear@8 164 Camera *Scene::get_camera(const char *name) const
nuclear@8 165 {
nuclear@8 166 for(size_t i=0; i<cameras.size(); i++) {
nuclear@8 167 if(cameras[i]->name == std::string(name)) {
nuclear@8 168 return cameras[i];
nuclear@8 169 }
nuclear@8 170 }
nuclear@8 171 return 0;
nuclear@8 172 }
nuclear@8 173
nuclear@9 174 int Scene::get_camera_count() const
nuclear@9 175 {
nuclear@9 176 return (int)cameras.size();
nuclear@9 177 }
nuclear@9 178
nuclear@9 179
nuclear@8 180 void Scene::add_node(Node *node)
nuclear@8 181 {
nuclear@8 182 nodes.push_back(node);
nuclear@8 183 }
nuclear@8 184
nuclear@8 185 Node *Scene::get_node(int idx) const
nuclear@8 186 {
nuclear@8 187 return idx >= 0 && idx < (int)nodes.size() ? nodes[idx] : 0;
nuclear@8 188 }
nuclear@8 189
nuclear@8 190 Node *Scene::get_node(const char *name) const
nuclear@8 191 {
nuclear@8 192 for(size_t i=0; i<nodes.size(); i++) {
nuclear@8 193 if(strcmp(nodes[i]->get_name(), name) == 0) {
nuclear@8 194 return nodes[i];
nuclear@8 195 }
nuclear@8 196 }
nuclear@8 197 return 0;
nuclear@8 198 }
nuclear@8 199
nuclear@9 200 int Scene::get_node_count() const
nuclear@9 201 {
nuclear@9 202 return (int)nodes.size();
nuclear@9 203 }
nuclear@9 204
nuclear@9 205
nuclear@8 206 bool Scene::load(goat3d_io *io)
nuclear@8 207 {
nuclear@8 208 return false;
nuclear@8 209 }
nuclear@8 210
nuclear@19 211 // Scene::loadxml is defined in goat3d_readxml.cc
nuclear@14 212 // Scene::save is defined in goat3d_write.cc
nuclear@19 213 // Scene::savexml is defined in goat3d_writexml.cc
nuclear@9 214
nuclear@9 215
nuclear@14 216 void io_fprintf(goat3d_io *io, const char *fmt, ...)
nuclear@8 217 {
nuclear@14 218 va_list ap;
nuclear@9 219
nuclear@14 220 va_start(ap, fmt);
nuclear@14 221 io_vfprintf(io, fmt, ap);
nuclear@14 222 va_end(ap);
nuclear@14 223 }
nuclear@9 224
nuclear@9 225
nuclear@14 226 void io_vfprintf(goat3d_io *io, const char *fmt, va_list ap)
nuclear@14 227 {
nuclear@14 228 char smallbuf[256];
nuclear@14 229 char *buf = smallbuf;
nuclear@14 230 int sz = sizeof smallbuf;
nuclear@9 231
nuclear@14 232 int retsz = vsnprintf(buf, sz - 1, fmt, ap);
nuclear@9 233
nuclear@14 234 if(retsz >= sz) {
nuclear@14 235 /* C99 mandates that snprintf with a short count should return the
nuclear@14 236 * number of characters that *would* be printed.
nuclear@14 237 */
nuclear@14 238 buf = new char[retsz + 1];
nuclear@9 239
nuclear@14 240 vsnprintf(buf, retsz, fmt, ap);
nuclear@9 241
nuclear@14 242 } else if(retsz <= 0) {
nuclear@14 243 /* SUSv2 and microsoft specify that snprintf with a short count
nuclear@14 244 * returns an arbitrary value <= 0. So let's try allocating
nuclear@14 245 * bigger and bigger arrays until we find the correct size.
nuclear@14 246 */
nuclear@14 247 sz = sizeof smallbuf;
nuclear@14 248 do {
nuclear@14 249 sz *= 2;
nuclear@14 250 if(buf != smallbuf) {
nuclear@14 251 delete [] buf;
nuclear@14 252 }
nuclear@14 253 buf = new char[sz + 1];
nuclear@9 254
nuclear@14 255 retsz = vsnprintf(buf, sz, fmt, ap);
nuclear@14 256 } while(retsz <= 0);
nuclear@9 257 }
nuclear@9 258
nuclear@15 259 io->write(buf, retsz, io->cls);
nuclear@9 260
nuclear@14 261 if(buf != smallbuf) {
nuclear@14 262 delete [] buf;
nuclear@9 263 }
nuclear@9 264
nuclear@9 265 }