Added Enigma game

2010-10-13 17:30:44 +03:00
parent 8bd2d39dfe
commit bf7d3f22c6
308 changed files with 92986 additions and 39 deletions
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2002,2003,2004,2005,2006 Daniel Heck
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+#ifndef GUI_LEVELPREVIEWCACHE_HH_INCLUDED
+#define GUI_LEVELPREVIEWCACHE_HH_INCLUDED
+
+#include "lev/Index.hh"
+#include "lev/Proxy.hh"
+#include <map>
+
+namespace enigma { namespace gui {
+    /**
+     * A singleton manager for level previews with autocaching.
+     * Clients just need to know the level proxy to request a preview.
+     * <p>
+     * Previews will be loaded from levelpack bundles if provided. These
+     * preview files have the same name as the levels themself but the 
+     * suffix ".png". They just sit aside the levels in the same directory
+     * or in the same zip archive. Only local stored previews will be looked
+     * for.<p>
+     * If no bundled preview exists the preview will be loaded from prior
+     * generated and saved instances. Previews will be looked up at the 
+     * resourceFS with play time generated previews stored at the userImagePath
+     * and installation time generated previews at the system path. The previews
+     * will be stored at "data/thumbs" with a subpath that reflectes the level
+     * subpath with critical characters replaced for url and other special levels.
+     * The level release number is attached to the previewname as "#n" to allow
+     * different previews for different releases to exist in parallel.<p>
+     * 
+     * If no stored preview exists a new one will be generated by loading the
+     * level. The preview will be stored to the userImagePath for future use.<p>
+     * 
+     * All loaded previews will be autocached. Futher requests will be served
+     * by the cache. The cache will be autocleared when a change in the
+     * current Index is detected.<p>
+     * 
+     * TODO remove unused preview on filesystem
+     * TODO autogenerate previews on install
+     */
+    class LevelPreviewCache {
+    public:
+        static LevelPreviewCache *instance();
+        static void makeSystemPreview(lev::Proxy *levelProxy, std::string systemDataPath);
+        ~LevelPreviewCache();
+
+        ecl::Surface *getPreview (lev::Proxy *levelProxy, 
+            bool allowGeneration, bool &didGenerate);
+        ecl::Surface *updatePreview (lev::Proxy *levelProxy);
+        void clear();
+    protected:
+        LevelPreviewCache();
+    private:
+        static LevelPreviewCache *theSingleton;
+       
+        /**
+         * A mapping of "levelId+levelRelease" to preview surfaces
+         */
+        typedef std::map<std::string, ecl::Surface*> PreviewMap;
+
+        // ---------- Internal methods ----------
+
+        static ecl::Surface *newPreview (lev::Proxy *levelProxy);
+        std::string makePreviewPath(lev::Proxy *levelProxy);
+        void savePreview(lev::Proxy *levelProxy, ecl::Surface *s);
+
+        // ---------- Variables ----------
+
+        PreviewMap         cache;       // a second mapping to avoid searched on the filesystem
+        enigma::ImageCache imgCache;    // the owner of the preview surfaces -
+                                        // cannot be used as mapping as this cache 
+                                        // uses the filepath as index and autoloads
+                                        // files on "get"-access                                       
+        lev::Index        *cachedIndex; // the index that is currently cached
+    };
+}} // namespace enigma::gui
+#endif