From e1bf5e2d436998503904e6217ba3e50eaeef9822 Mon Sep 17 00:00:00 2001
From: Paul Gilbert
Date: Fri, 16 Sep 2016 12:45:47 -0400
Subject: TITANIC: Flesh out the FPoint class

---
 engines/titanic/star_control/fpoint.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'engines/titanic/star_control/fpoint.h')

diff --git a/engines/titanic/star_control/fpoint.h b/engines/titanic/star_control/fpoint.h
index f2cef18ea5..33181d937b 100644
--- a/engines/titanic/star_control/fpoint.h
+++ b/engines/titanic/star_control/fpoint.h
@@ -34,6 +34,25 @@ public:
 public:
 	FPoint() : _x(0), _y(0) {}
 	FPoint(double x, double y) : _x(x), _y(y) {}
+
+	bool operator==(const FPoint &p) const { return _x == p._x && _y == p._y; }
+	bool operator!=(const FPoint &p) const { return _x != p._x || _y != p._y; }
+
+	void operator+=(const FPoint &delta) {
+		_x += delta._x;
+		_y += delta._y;
+	}
+
+	void operator-=(const FPoint &delta) {
+		_x -= delta._x;
+		_y -= delta._y;
+	}
+
+	/**
+	 * Normalises the X and Y coordinates as fractions relative to the
+	 * value of the hypotenuse formed by a triangle from the origin (0,0)
+	 */
+	void normalize();
 };
 
 } // End of namespace Titanic
-- 
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