Initial commit

engines/sludge/floor.h

@@ -0,0 +1,83 @@
+/* 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 SLUDGE_FLOOR_H
+#define SLUDGE_FLOOR_H
+
+namespace Common {
+struct Point;
+class SeekableReadStream;
+class WriteStream;
+}
+
+namespace Sludge {
+
+class SludgeEngine;
+struct OnScreenPerson;
+
+struct FloorPolygon {
+	int numVertices;
+	int *vertexID;
+};
+
+struct Floor {
+	int originalNum;
+	Common::Point *vertex;
+	int numPolygons;
+	FloorPolygon *polygon;
+	int **matrix;
+};
+
+class FloorManager {
+public:
+	FloorManager(SludgeEngine *vm);
+	~FloorManager();
+
+	bool init();
+	void kill();
+
+	void setFloorNull();
+	bool setFloor(int fileNum);
+	void drawFloor();
+	int inFloor(int x, int y);
+	bool isFloorNoPolygon() { return !_currentFloor || _currentFloor->numPolygons == 0; }
+
+	// For Person collision detection
+	bool handleClosestPoint(int &setX, int &setY, int &setPoly);
+	bool doBorderStuff(OnScreenPerson *moveMe);
+
+	// Save & load
+	void save(Common::WriteStream *stream);
+	bool load(Common::SeekableReadStream *stream);
+
+private:
+	Floor *_currentFloor;
+	SludgeEngine *_vm;
+
+	bool getMatchingCorners(FloorPolygon &, FloorPolygon &, int &, int &);
+	bool closestPointOnLine(int &closestX, int &closestY, int x1, int y1, int x2, int y2, int xP, int yP);
+	bool pointInFloorPolygon(FloorPolygon &floorPoly, int x, int y);
+	bool polysShareSide(FloorPolygon &a, FloorPolygon &b);
+	void dumpFloor(int fileNum);
+};
+
+} // End of namespace Sludge
+
+#endif