add walkmaps support.

Fast detecting between two targets is they in same walkable area.

1 files changed, 53 insertions, 0 deletions

diff --git a/src/navigationmanager.h b/src/navigationmanager.h
new file mode 100644
index 000000000..c08f4acd5
--- /dev/null
+++ b/src/navigationmanager.h
@@ -0,0 +1,53 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2013  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  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
+ *  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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef NAVIGATIONMANAGER_H
+#define NAVIGATIONMANAGER_H
+
+#include "localconsts.h"
+
+class MetaTile;
+class Map;
+class Resource;
+
+class NavigationManager final
+{
+    public:
+        NavigationManager();
+
+        A_DELETE_COPY(NavigationManager)
+
+        ~NavigationManager();
+
+        static Resource *loadWalkLayer(Map *const map);
+
+    private:
+        static bool findWalkableTile(int &x1, int &y1,
+                                     const int width, const int height,
+                                     const MetaTile *const tiles,
+                                     const int *const data);
+
+        static void fillNum(int x, int y,
+                            const int width, const int height,
+                            const int num, const MetaTile *const tiles,
+                            int *const data);
+};
+
+#endif