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engines/sword25/math/vertex.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/>.
+ *
+ */
+
+/*
+ * This code is based on Broken Sword 2.5 engine
+ *
+ * Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
+ *
+ * Licensed under GNU GPL v2
+ *
+ */
+
+/*
+	BS_Vertex
+	---------
+
+	Autor: Malte Thiesen
+*/
+
+#ifndef SWORD25_VERTEX_H
+#define SWORD25_VERTEX_H
+
+// Includes
+#include "common/rect.h"
+#include "sword25/kernel/common.h"
+
+struct lua_State;
+
+namespace Sword25 {
+
+/**
+ * Defines a 2-D Vertex
+ */
+class Vertex : public Common::Point {
+public:
+	Vertex() : Point() {}
+	Vertex(int x_, int y_) : Point(x_, y_) {}
+	Vertex(Point p) : Point(p) {}
+
+	/**
+	 * Calculates the square of the distance between two Vertecies.
+	 * @param Vertex        The vertex for which the distance is to be calculated
+	 * @return              Returns the square of the distance between itself and the passed vertex
+	 * @remark              If only distances should be compared, sqrDist() should be used, since it is faster.
+	 */
+	inline int distance(const Vertex &vertex) const {
+		return (int)(sqrt(static_cast<float>(sqrDist(vertex))) + 0.5);
+	}
+
+	static Vertex &luaVertexToVertex(lua_State *L, int StackIndex, Vertex &vertex);
+	static void vertexToLuaVertex(lua_State *L, const Vertex &vertex);
+};
+
+} // End of namespace Sword25
+
+#endif