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engines/hpl1/engine/scene/TileMapLineIt.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/>.
+ *
+ */
+
+/*
+ * Copyright (C) 2006-2010 - Frictional Games
+ *
+ * This file is part of HPL1 Engine.
+ */
+
+#ifndef HPL_TILEMAP_LINE_IT_H
+#define HPL_TILEMAP_LINE_IT_H
+
+#include "hpl1/engine/math/MathTypes.h"
+#include "hpl1/engine/scene/TileMap.h"
+#include "hpl1/engine/scene/TileMapIt.h"
+
+namespace hpl {
+
+class cTileMapLineIt : public iTileMapIt {
+public:
+	/**
+	 *
+	 * \param avPos
+	 * \param avSize
+	 * \param apTileMap
+	 * \param alLayer The layer that is to be iterated. -1 = All layers (hiding tiles behind solid ones)
+	 * \return
+	 */
+	cTileMapLineIt(cVector2f avStartPos, cVector2f avEndPos, cTileMap *apTileMap, int alLayer);
+	~cTileMapLineIt();
+
+	bool HasNext();
+	cTile *Next();
+	cTile *PeekNext();
+	int GetNum();
+	int GetCurrentLayer();
+
+private:
+	cVector2l mvEndPos;
+
+	cVector2f mvPos;
+	cVector2f mvPosAdd;
+	cVector2l mvTilePos;
+
+	int mlLayer;
+	int mlLayerCount;
+	int mlCurrentLayer;
+	int mlTileNum;
+
+	bool mbUpdated;
+
+	bool mbAtLastTile;
+	bool mbAddNext;
+
+	cTileMap *mpTileMap;
+	cTile *mpTile;
+
+	void GetTile();
+
+	void GetXYIntersection(const cVector2f &avPosA, cVector2f *avXIntersect, cVector2f *avYIntersect);
+};
+
+} // namespace hpl
+
+#endif // HPL_TILEMAP_LINE_IT_H