ZVISION: Copy Point struct from rect.h and turn it into a templated class

1 files changed, 80 insertions, 0 deletions

diff --git a/engines/zvision/point.h b/engines/zvision/point.h
new file mode 100644
index 0000000000..da244e9449
--- /dev/null
+++ b/engines/zvision/point.h
@@ -0,0 +1,80 @@
+/* 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.
+ *
+ */
+
+#ifndef COMMON_ZVISION_POINT_H
+#define COMMON_ZVISION_POINT_H
+
+#include "common/types.h"
+
+namespace ZVision {
+
+/**
+ * Simple class for handling both 2D position and size.
+ */
+template<class T>
+class Point {
+public:
+	T x;	///< The horizontal part of the point
+	T y;	///< The vertical part of the point
+
+public:
+	Point() : x(0), y(0) {}
+	Point(T x1, T y1) : x(x1), y(y1) {}
+
+public:
+	bool operator==(const Point &p) const { return x == p.x && y == p.y; }
+	bool operator!=(const Point &p) const { return x != p.x || y != p.y; }
+	Point operator+(const Point &delta) const {	return Point(x + delta.x, y + delta.y);	}
+	Point operator-(const Point &delta) const {	return Point(x - delta.x, y - delta.y);	}
+
+	void operator+=(const Point &delta) {
+		x += delta.x;
+		y += delta.y;
+	}
+
+	void operator-=(const Point &delta) {
+		x -= delta.x;
+		y -= delta.y;
+	}
+
+	/**
+	 * Return the square of the distance between this point and the point p.
+	 *
+	 * @param p		the other point
+	 * @return the distance between this and p
+	 */
+	uint sqrDist(const Point &p) const {
+		int diffx = ABS(p.x - x);
+		if (diffx >= 0x1000)
+			return 0xFFFFFF;
+
+		int diffy = ABS(p.y - y);
+		if (diffy >= 0x1000)
+			return 0xFFFFFF;
+
+		return uint(diffx * diffx + diffy * diffy);
+	}
+};
+
+} // End of namespace ZVision
+
+#endif