[gnome-nibbles] Implement end game animation

[Iulian Radu <iulianradu src gnome org>]

commit bc5f1f6c2b08a41586097d4553dab3caf073f6e9
Author: Iulian Radu <iulian radu67 gmail com>
Date:   Mon Jul 27 19:18:27 2015 +0300

    Implement end game animation

 src/gnome-nibbles.vala |    2 +-
 src/nibbles-game.vala  |   37 +++++++++++++++++++++++++++++-----
 src/nibbles-view.vala  |   50 ++++++++++++++++++++++++++++++++++++++++++-----
 3 files changed, 76 insertions(+), 13 deletions(-)
---
diff --git a/src/gnome-nibbles.vala b/src/gnome-nibbles.vala
index 665d168..817db85 100644
--- a/src/gnome-nibbles.vala
+++ b/src/gnome-nibbles.vala
@@ -253,7 +253,7 @@ public class Nibbles : Gtk.Application
          */
         game.load_properties (settings);
         game.current_level = game.start_level;
-        game.loop_ended.connect (scoreboard.update);
+        game.loop_started.connect (scoreboard.update);
         view.new_level (game.current_level);
         view.configure_event.connect (configure_event_cb);
 
diff --git a/src/nibbles-game.vala b/src/nibbles-game.vala
index ecc6ad7..04851bd 100644
--- a/src/nibbles-game.vala
+++ b/src/nibbles-game.vala
@@ -61,10 +61,14 @@ public class NibblesGame : Object
 
     public bool fakes = false;
 
+    private uint main_id = 0;
+    private uint add_bonus_id = 0;
+
     public signal void worm_moved (Worm worm);
     public signal void bonus_applied (Worm worm);
-    public signal void loop_ended ();
+    public signal void loop_started ();
     public signal void log_score (Worm worm);
+    public signal void animate_end_game ();
 
     public Gee.HashMap<Worm, WormProperties?> worm_props;
 
@@ -83,13 +87,28 @@ public class NibblesGame : Object
     {
         add_bonus (true);
 
-        var main_id = Timeout.add (GAMEDELAY * game_speed, main_loop_cb);
+        main_id = Timeout.add (GAMEDELAY * game_speed, main_loop_cb);
         Source.set_name_by_id (main_id, "[Nibbles] main_loop_cb");
 
-        var add_bonus_id = Timeout.add (BONUSDELAY * game_speed, add_bonus_cb);
+        add_bonus_id = Timeout.add (BONUSDELAY * game_speed, add_bonus_cb);
         Source.set_name_by_id (add_bonus_id, "[Nibbles] add_bonus_cb");
     }
 
+    private void stop ()
+    {
+        if (main_id != 0)
+        {
+            Source.remove (main_id);
+            main_id = 0;
+        }
+
+        if (add_bonus_id != 0)
+        {
+            Source.remove (add_bonus_id);
+            add_bonus_id = 0;
+        }
+    }
+
     public void add_worms ()
     {
         foreach (var worm in worms)
@@ -336,22 +355,21 @@ public class NibblesGame : Object
     public bool main_loop_cb ()
     {
         var status = get_game_status ();
+        loop_started ();
 
         if (status == GameStatus.VICTORY)
         {
-            // end_game ();
+            end_game ();
             var winner = get_winner ();
 
             if (winner == null)
                 return Source.REMOVE;
 
-            stderr.printf("[Debug] Logging score\n");
             log_score (winner);
 
             return Source.REMOVE;
         }
         move_worms ();
-        loop_ended ();
 
         return Source.CONTINUE;
     }
@@ -366,6 +384,7 @@ public class NibblesGame : Object
         }
 
         if (worms_left == 1 && numworms > 1)
+            /* There were multiple worms but only one is still alive */
             return GameStatus.VICTORY;
         else if (worms_left == 0) {
             /* There was only one worm and it died */
@@ -386,6 +405,12 @@ public class NibblesGame : Object
         return null;
     }
 
+    private void end_game ()
+    {
+        stop ();
+        animate_end_game ();
+    }
+
     public void load_properties (Settings settings)
     {
         tile_size = settings.get_int ("tile-size");
diff --git a/src/nibbles-view.vala b/src/nibbles-view.vala
index 85cb9bc..cf1df92 100644
--- a/src/nibbles-view.vala
+++ b/src/nibbles-view.vala
@@ -33,6 +33,8 @@ public class NibblesView : GtkClutter.Embed
             _game.boni.bonus_removed.connect (bonus_removed_cb);
 
             _game.bonus_applied.connect (bonus_applied_cb);
+
+            _game.animate_end_game.connect (animate_end_game_cb);
         }
     }
 
@@ -356,6 +358,15 @@ public class NibblesView : GtkClutter.Embed
         level.restore_easing_state ();
     }
 
+    private void connect_signals (Worm worm)
+    {
+        worm.added.connect (worm_added_cb);
+        worm.moved.connect (worm_moved_cb);
+        worm.rescaled.connect (worm_rescaled_cb);
+        worm.died.connect (worm_died_cb);
+        worm.tail_reduced.connect (worm_tail_reduced_cb);
+    }
+
     public void board_rescale (int tile_size)
     {
         int board_width, board_height;
@@ -376,13 +387,40 @@ public class NibblesView : GtkClutter.Embed
         }
     }
 
-    private void connect_signals (Worm worm)
+    public void animate_end_game_cb ()
     {
-        worm.added.connect (worm_added_cb);
-        worm.moved.connect (worm_moved_cb);
-        worm.rescaled.connect (worm_rescaled_cb);
-        worm.died.connect (worm_died_cb);
-        worm.tail_reduced.connect (worm_tail_reduced_cb);
+        foreach (var worm in game.worms)
+        {
+            var actors = worm_actors.get (worm);
+
+            actors.save_easing_state ();
+            actors.set_easing_mode (Clutter.AnimationMode.EASE_IN_QUAD);
+            actors.set_easing_duration (NibblesGame.GAMEDELAY * 15);
+            actors.set_scale (0.4f, 0.4f);
+            actors.set_opacity (0);
+            actors.restore_easing_state ();
+        }
+
+        foreach (var bonus in game.boni.bonuses)
+        {
+            var actor = bonus_actors.get (bonus);
+
+            actor.save_easing_state ();
+            actor.set_easing_mode (Clutter.AnimationMode.EASE_IN_QUAD);
+            actor.set_easing_duration (NibblesGame.GAMEDELAY * 15);
+            actor.set_scale (0.4f, 0.4f);
+            actor.set_pivot_point (0.5f, 0.5f);
+            actor.set_opacity (0);
+            actor.restore_easing_state ();
+        }
+
+        level.save_easing_state ();
+        level.set_easing_mode (Clutter.AnimationMode.EASE_IN_QUAD);
+        level.set_easing_duration (NibblesGame.GAMEDELAY * 20);
+        level.set_scale (0.4f, 0.4f);
+        level.set_pivot_point (0.5f, 0.5f);
+        level.set_opacity (0);
+        level.restore_easing_state ();
     }
 
     public void worm_added_cb (Worm worm)