1 files changed, 93 insertions, 0 deletions
diff --git a/engines/toon/path.h b/engines/toon/path.h
new file mode 100644
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+++ b/engines/toon/path.h
@@ -0,0 +1,93 @@
+/* ScummVM - Graphic Adventure Engine
+*
+* ScummVM is the legal property of its developers, whose names
+* are too numerous to list here. Please refer to the COPYRIGHT
+* file distributed with this source distribution.
+*
+* 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.
+*
+* $URL$
+* $Id$
+*
+*/
+
+#ifndef TOON_PATH_H
+#define TOON_PATH_H
+
+#include "toon/toon.h"
+
+namespace Toon {
+
+// binary heap system for fast A*
+struct HeapDataGrid {
+	int16 _x, _y;
+	int16 _weight;
+};
+
+class PathFindingHeap {
+
+private:
+	HeapDataGrid *_data;
+public:
+	int32 _alloc;
+	int32 _count;
+	int32 push(int32 x, int32 y, int32 weight);
+	int32 pop(int32 *x, int32 *y, int32 *weight);
+	int32 init(int32 size);
+	int32 clear();
+	int32 unload();
+};
+
+
+class PathFinding {
+public:
+	PathFinding(ToonEngine *vm);
+	~PathFinding(void);
+
+	int32 findPath(int32 x, int32 y, int32 destX, int32 destY);
+	int32 findClosestWalkingPoint(int32 xx, int32 yy, int32 *fxx, int32 *fyy, int origX = -1, int origY = -1);
+	bool isWalkable(int32 x, int32 y);
+	void init(Picture *mask);
+
+	void resetBlockingRects();
+	void addBlockingRect(int32 x1, int32 y1, int32 x2, int32 y2);
+	void addBlockingEllipse(int32 x1, int32 y1, int32 w, int32 h);
+
+	int32 getPathNodeCount() const;
+	int32 getPathNodeX(int32 nodeId) const;
+	int32 getPathNodeY(int32 nodeId) const;
+protected:
+	Picture *_currentMask;
+
+	PathFindingHeap *_heap;
+
+	int32 *_gridTemp;
+	int32 _width;
+	int32 _height;
+
+	int32 _tempPathX[4096];
+	int32 _tempPathY[4096];
+	int32 _blockingRects[16][5];
+	int32 _numBlockingRects;
+	int32 _allocatedGridPathCount;
+	int32 _gridPathCount;
+
+	ToonEngine *_vm;
+
+};
+
+} // End of namespace Toon
+
+#endif