Created AnimViewMap

luprex/syscpp/animqueue.hpp

@@ -28,6 +28,7 @@
 #include <string>
 #include <deque>
 #include <cassert>
+#include <unordered_map>
 #include "util.hpp"
 
 
@@ -73,10 +74,13 @@ public:
 
 class AnimQueue {
 private:
+    int64_t id_;
     int size_limit_;
     std::deque<AnimStep> steps_;
 public:
     AnimQueue();
+    int64_t get_id() const { return id_; }
+    void set_id(int64_t id) { id_ = id; }
     const AnimStep &nth(int n) const { return steps_[n]; }
     int size() const { return steps_.size(); }
 
@@ -97,25 +101,52 @@ public:
 };
 
 class AnimView {
+    friend class AnimViewMap;
 private:
+    int64_t id_;
     std::string graphic_;
     std::string plane_;
     util::XYZ xyz_;
-    bool updated_;
+    bool updated_; // Used by AnimViewMap.
 public:
-    const std::string &get_graphic() { return graphic_; }
-    const std::string &get_plane() { return plane_; }
-    const util::XYZ &get_xyz() { return xyz_; }
-    bool updated() { return updated_; }
+    AnimView() : id_(0), updated_(true) {}
 
-    void update_from(const AnimQueue &queue) {
-        graphic_ = queue.get_graphic();
-        plane_ = queue.get_plane();
-        xyz_ = queue.get_xyz();
-        updated_ = true;
-    }
+    int64_t get_id() const { return id_; }
+    const std::string &get_graphic() const { return graphic_; }
+    const std::string &get_plane() const { return plane_; }
+    const util::XYZ &get_xyz() const { return xyz_; }
 
-    void set_updated(bool u) { updated_ = u; }
+    void update_from(const AnimQueue &queue);
+};
+
+// AnimViewMap: basically just a map from tangible ID to AnimView.
+//
+// Also provides a simple garbage collector to get rid of AnimViews
+// that haven't been updated recently.
+//
+class AnimViewMap {
+public:
+    using ViewMap = std::unordered_map<int64_t, AnimView>;
+private:
+    ViewMap view_map_;
+public:
+    AnimViewMap() {}
+    ~AnimViewMap() {}
+
+    // Get the entire view map for iterating over.
+    ViewMap &get_map() { return view_map_; }
+
+    // Get one entry from the view map, if it exists.
+    AnimView *get_one(int64_t id);
+
+    // Clear the updated bits on all the AnimViews.
+    void clear_updated_bits();
+
+    // Delete any AnimViews whose updated bits are not set.
+    void delete_non_updated();
+
+    // Update one AnimView, and set its updated bit.
+    void update_one(const AnimQueue &queue);
 };
 
 #endif // ANIMQUEUE_HPP