From e06d8e4d15d957250079b7744784f0d2af883662 Mon Sep 17 00:00:00 2001
From: Savely Skresanov <savask@yandex.ru>
Date: Sat, 4 Aug 2012 18:39:40 +0700
Subject: [PATCH] Rectangle snapping.

---
 src/game/GameView.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/game/GameView.cpp b/src/game/GameView.cpp
index 838f733ec..f58b14564 100644
--- a/src/game/GameView.cpp
+++ b/src/game/GameView.cpp
@@ -1553,5 +1553,10 @@ ui::Point GameView::lineSnapCoords(ui::Point point1, ui::Point point2)
 
 ui::Point GameView::rectSnapCoords(ui::Point point1, ui::Point point2)
 {
-	return point2;
-}
\ No newline at end of file
+	ui::Point newPoint(0, 0);
+	float snapAngle = floor((atan2(point2.Y-point1.Y, point2.X-point1.X)+M_PI*0.25)/(M_PI*0.5)+0.5)*M_PI*0.5 - M_PI*0.25;
+	float lineMag = sqrtf(pow((float)(point2.X-point1.X),2)+pow((float)(point2.Y-point1.Y),2));
+	newPoint.X = (int)(lineMag*cos(snapAngle)+point1.X+0.5f);
+	newPoint.Y = (int)(lineMag*sin(snapAngle)+point1.Y+0.5f);
+	return newPoint;
+}