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engines/sky/autoroute.h

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef SKY_AUTOROUTE_H
+#define SKY_AUTOROUTE_H
+
+
+#include "common/scummsys.h"
+
+namespace Sky {
+
+struct Compact;
+class Grid;
+class SkyCompact;
+
+class AutoRoute {
+public:
+	AutoRoute(Grid *pGrid, SkyCompact *compact);
+	~AutoRoute();
+	uint16 autoRoute(Compact *cpt);
+private:
+	uint16 checkBlock(uint16 *blockPos);
+	void clipCoordX(uint16 x, uint8 &blkX, int16 &initX);
+	void clipCoordY(uint16 y, uint8 &blkY, int16 &initY);
+	void initWalkGrid(uint8 screen, uint8 width);
+	bool calcWalkGrid(uint8 startX, uint8 startY, uint8 destX, uint8 destY);
+	uint16 *makeRouteData(uint8 startX, uint8 startY, uint8 destX, uint8 destY);
+	uint16 *checkInitMove(uint16 *data, int16 initStaX);
+	Grid *_grid;
+	SkyCompact *_skyCompact;
+	uint16 *_routeGrid;
+	uint16 *_routeBuf;
+	static const int16 _routeDirections[4];
+	static const uint16 _logicCommands[4];
+};
+
+} // End of namespace Sky
+
+#endif // AUTOROUTE_H