+void HeadlessApplication::CommitStates() {
+ env.state.Commit(*this);
+}
+
+bool HeadlessApplication::HasState() const noexcept {
+ return !states.empty();
+}
+
+
+void StateControl::Commit(HeadlessApplication &app) {
+ while (!cue.empty()) {
+ Memo m(cue.front());
+ cue.pop();
+ switch (m.cmd) {
+ case PUSH:
+ app.PushState(m.state);
+ break;
+ case SWITCH:
+ app.SwitchState(m.state);
+ break;
+ case POP:
+ app.PopState();
+ break;
+ case POP_ALL:
+ while (app.HasState()) {
+ app.PopState();
+ }
+ break;
+ case POP_AFTER:
+ while (app.HasState() && &app.GetState() != m.state) {
+ app.PopState();
+ }
+ break;
+ case POP_UNTIL:
+ while (app.HasState()) {
+ if (app.PopState() == m.state) {
+ break;
+ }
+ }
+ }
+ }
+}
+
+
+AssetLoader::AssetLoader(const string &base)
+: fonts(base + "fonts/")
+, sounds(base + "sounds/")
+, textures(base + "textures/")
+, data(base + "data/") {
+
+}
+
+Assets::Assets(const AssetLoader &loader)
+: large_ui_font(loader.LoadFont("DejaVuSans", 24))
+, small_ui_font(loader.LoadFont("DejaVuSans", 16)) {
+
+}
+
+void AssetLoader::LoadBlockTypes(
+ const string &set_name,
+ BlockTypeRegistry ®,
+ ResourceIndex &snd_index,
+ ResourceIndex &tex_index,
+ const ShapeRegistry &shapes
+) const {
+ string full = data + set_name + ".types";
+ std::ifstream file(full);
+ if (!file) {
+ throw std::runtime_error("failed to open block type file " + full);
+ }
+ TokenStreamReader in(file);
+ string name;
+ while (in.HasMore()) {
+ in.ReadIdentifier(name);
+ in.Skip(Token::EQUALS);
+ BlockType type;
+ type.Read(in, snd_index, tex_index, shapes);
+ in.Skip(Token::SEMICOLON);
+ reg.Add(type);
+ }
+}
+
+CubeMap AssetLoader::LoadCubeMap(const string &name) const {
+ string full = textures + name;
+ string right = full + "-right.png";
+ string left = full + "-left.png";
+ string top = full + "-top.png";
+ string bottom = full + "-bottom.png";
+ string back = full + "-back.png";
+ string front = full + "-front.png";
+
+ CubeMap cm;
+ cm.Bind();
+ SDL_Surface *srf;
+
+ if (!(srf = IMG_Load(right.c_str()))) throw SDLError("IMG_Load");
+ try {
+ cm.Data(CubeMap::RIGHT, *srf);
+ } catch (...) {
+ SDL_FreeSurface(srf);
+ throw;
+ }
+ SDL_FreeSurface(srf);
+
+ if (!(srf = IMG_Load(left.c_str()))) throw SDLError("IMG_Load");
+ try {
+ cm.Data(CubeMap::LEFT, *srf);
+ } catch (...) {
+ SDL_FreeSurface(srf);
+ throw;
+ }
+ SDL_FreeSurface(srf);
+
+ if (!(srf = IMG_Load(top.c_str()))) throw SDLError("IMG_Load");
+ try {
+ cm.Data(CubeMap::TOP, *srf);
+ } catch (...) {
+ SDL_FreeSurface(srf);
+ throw;
+ }
+ SDL_FreeSurface(srf);
+
+ if (!(srf = IMG_Load(bottom.c_str()))) throw SDLError("IMG_Load");
+ try {
+ cm.Data(CubeMap::BOTTOM, *srf);
+ } catch (...) {
+ SDL_FreeSurface(srf);
+ throw;
+ }
+ SDL_FreeSurface(srf);
+
+ if (!(srf = IMG_Load(back.c_str()))) throw SDLError("IMG_Load");
+ try {
+ cm.Data(CubeMap::BACK, *srf);
+ } catch (...) {
+ SDL_FreeSurface(srf);
+ throw;
+ }
+ SDL_FreeSurface(srf);
+
+ if (!(srf = IMG_Load(front.c_str()))) throw SDLError("IMG_Load");
+ try {
+ cm.Data(CubeMap::FRONT, *srf);
+ } catch (...) {
+ SDL_FreeSurface(srf);
+ throw;
+ }
+ SDL_FreeSurface(srf);
+
+ cm.FilterNearest();
+ cm.WrapEdge();
+
+ return cm;
+}
+
+Font AssetLoader::LoadFont(const string &name, int size) const {