From a704043fd2ab01b3609dfaf80bf7a0165714bcc8 Mon Sep 17 00:00:00 2001
From: Randy Heit <rheit@zdoom.fake>
Date: Sat, 7 Feb 2009 00:01:58 +0000
Subject: [PATCH] - Removed automap scroll clamping for rotated maps. If it's
 going to scroll out of sight,   at least it'll do so at a fixed right.

SVN r1407 (trunk)
---
 src/am_map.cpp | 51 +++++++++++++++++++++++++++++++-------------------
 1 file changed, 32 insertions(+), 19 deletions(-)

diff --git a/src/am_map.cpp b/src/am_map.cpp
index 541d3a5d0..0de79fc0d 100644
--- a/src/am_map.cpp
+++ b/src/am_map.cpp
@@ -493,50 +493,63 @@ static void AM_findMinMaxBoundaries ()
 
 static void AM_ClipRotatedExtents (fixed_t pivotx, fixed_t pivoty)
 {
-	fixed_t rmin_x, rmin_y, rmax_x, rmax_y;
-
 	if (am_rotate == 0 || (am_rotate == 2 && !viewactive))
 	{
-		rmin_x = min_x;
-		rmin_y = min_y;
-		rmax_x = max_x;
-		rmax_y = max_y;
+		if (m_x + m_w/2 > max_x)
+			m_x = max_x - m_w/2;
+		else if (m_x + m_w/2 < min_x)
+			m_x = min_x - m_w/2;
+	  
+		if (m_y + m_h/2 > max_y)
+			m_y = max_y - m_h/2;
+		else if (m_y + m_h/2 < min_y)
+			m_y = min_y - m_h/2;
 	}
 	else
 	{
-		fixed_t xs[4], ys[4];
+#if 0
+		fixed_t rmin_x, rmin_y, rmax_x, rmax_y;
+		fixed_t xs[5], ys[5];
 		int i;
 
 		xs[0] = min_x;	ys[0] = min_y;
 		xs[1] = max_x;	ys[1] = min_y;
 		xs[2] = max_x;	ys[2] = max_y;
 		xs[3] = min_x;	ys[3] = max_y;
+		xs[4] = m_x + m_w/2; ys[4] = m_y + m_h/2;
 		rmin_x = rmin_y = FIXED_MAX;
 		rmax_x = rmax_y = FIXED_MIN;
 
-		for (i = 0; i < 4; ++i)
+		for (i = 0; i < 5; ++i)
 		{
 			xs[i] -= pivotx;
 			ys[i] -= pivoty;
 			AM_rotate (&xs[i], &ys[i], ANG90 - players[consoleplayer].camera->angle);
-			xs[i] += pivotx;
-			ys[i] += pivoty;
+
+			if (i == 5)
+				break;
+//			xs[i] += pivotx;
+//			ys[i] += pivoty;
 
 			if (xs[i] < rmin_x)	rmin_x = xs[i];
 			if (xs[i] > rmax_x) rmax_x = xs[i];
 			if (ys[i] < rmin_y) rmin_y = ys[i];
 			if (ys[i] > rmax_y) rmax_y = ys[i];
 		}
+		if (rmax_x < 0)
+			xs[4] = -rmax_x;
+		else if (rmin_x > 0)
+			xs[4] = -rmin_x;
+	  
+//		if (ys[4] > rmax_y)
+//			ys[4] = rmax_y;
+//		else if (ys[4] < rmin_y)
+//			ys[4] = rmin_y;
+		AM_rotate (&xs[4], &ys[4], ANG270 - players[consoleplayer].camera->angle);
+		m_x = xs[4] + pivotx - m_w/2;
+		m_y = ys[4] + pivoty - m_h/2;
+#endif
 	}
-	if (m_x + m_w/2 > rmax_x)
-		m_x = rmax_x - m_w/2;
-	else if (m_x + m_w/2 < rmin_x)
-		m_x = rmin_x - m_w/2;
-  
-	if (m_y + m_h/2 > rmax_y)
-		m_y = rmax_y - m_h/2;
-	else if (m_y + m_h/2 < rmin_y)
-		m_y = rmin_y - m_h/2;
 
 	m_x2 = m_x + m_w;
 	m_y2 = m_y + m_h;