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author | Filippos Karapetis | 2008-04-20 14:47:37 +0000 |
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committer | Filippos Karapetis | 2008-04-20 14:47:37 +0000 |
commit | 7ca439f410ac1c46a387567b30271ae4e4a2ed30 (patch) | |
tree | 4d4154169b074293581ad6a11ee821290418f4fb /engines/m4/rails.h | |
parent | d0590a09eac68d5cde64d37fb2e5bbd1471a676a (diff) | |
download | scummvm-rg350-7ca439f410ac1c46a387567b30271ae4e4a2ed30.tar.gz scummvm-rg350-7ca439f410ac1c46a387567b30271ae4e4a2ed30.tar.bz2 scummvm-rg350-7ca439f410ac1c46a387567b30271ae4e4a2ed30.zip |
Initial import of the work in progress M4 engine
svn-id: r31600
Diffstat (limited to 'engines/m4/rails.h')
-rw-r--r-- | engines/m4/rails.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/engines/m4/rails.h b/engines/m4/rails.h new file mode 100644 index 0000000000..d7320eef4d --- /dev/null +++ b/engines/m4/rails.h @@ -0,0 +1,97 @@ +/* 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 M4_RAILS_H +#define M4_RAILS_H + +#include "m4/graphics.h" +#include "common/list.h" +#include "common/array.h" +#include "common/rect.h" + +// TODO: This needs cleaning up + +namespace M4 { + +#define MAXRAILNODES 32 +#define PATH_END 0xffff + +struct RailNode { + uint8 nodeID; + int32 x, y; + RailNode *shortPath; + int32 pathWeight; +}; + +struct NoWalkRect { + int32 x1, y1, x2, y2; + int32 alternateWalkToNode; + int32 walkAroundNode1; + int32 walkAroundNode2; + int32 walkAroundNode3; + int32 walkAroundNode4; +}; + +struct PathNode { + PathNode *next; + int8 nodeID; +}; + +struct IsWalkableData { + M4Surface *codes; + bool result; +}; + +class Rails { +public: + Rails(); + ~Rails(); + + void setCodeSurface(M4Surface *surface) { _walkCodes = surface; } + void clearRails(); + int32 addRailNode(int32 x, int32 y, bool restoreEdges); + +private: + Common::Array<RailNode *> _nodes; + Common::Array<int16 *> _edges; + Common::List<NoWalkRect *> _noWalkRects; + M4Surface *_walkCodes; + + bool lineCrossesRect(int32 x1, int32 y1, int32 x2, int32 y2, Common::Rect rect); + bool linePassesThroughRect(int32 x1, int32 y1, int32 x2, int32 y2); + void createEdge(int32 node1, int32 node2); + bool removeRailNode(int32 nodeID, bool restoreEdges); + int16 getEdgeLength(int32 node1, int32 node2); + + void restoreNodeEdges(int32 nodeID); + void restoreEdgeList(); + void disposePath(RailNode *pathStart); + bool getShortestPath(int32 origID, int32 destID, RailNode **shortPath); + bool isLineWalkable(int x0, int y0, int x1, int y1); +}; + +} // End of namespace M4 + +#endif |