From a99a0f403c236dab866e00a81a1a2062417d0eff Mon Sep 17 00:00:00 2001
From: sparky4 <sparky4@cock.li>
Date: Mon, 13 Jun 2016 12:24:31 -0500
Subject: [PATCH] hmmm

---
 src/lib/modex16.c  | 6 +++++-
 src/lib/scroll16.c | 8 ++++----
 src/lib/typdefst.h | 1 +
 3 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/lib/modex16.c b/src/lib/modex16.c
index 271a84ef..df9767bc 100755
--- a/src/lib/modex16.c
+++ b/src/lib/modex16.c
@@ -199,6 +199,7 @@ modexDefaultPage(page_t *p)
 	page.tilemidposscreeny = (page.th/2)+1;
 	page.stridew=page.width/4;
 	page.pagesize = (word)(page.width/4)*page.height;
+	page.pi=4;
 	page.id = 0;
 
     return page;
@@ -222,9 +223,10 @@ modexNextPage(page_t *p) {
 	result.th = p->th;
 	result.tilesw = p->tilesw;
 	result.tilesh = p->tilesh;
-	result.id = p->id+1;
 	result.stridew=p->stridew;
 	result.pagesize = p->pagesize;
+	result.pi=4;
+	result.id = p->id+1;
 
 	return result;
 }
@@ -249,6 +251,8 @@ modexNextPageFlexibleSize(page_t *p, word x, word y)
 	result.id = p->id+1;
 	result.stridew=result.width/4;
 	result.pagesize = (word)(result.width/4)*result.height;
+	if(result.id==2)		result.pi=p->width*p->pi;
+	else if(result.id==3)	result.pi=p->pi;
 
 	return result;
 }
diff --git a/src/lib/scroll16.c b/src/lib/scroll16.c
index e2c6b9ad..a43591f6 100755
--- a/src/lib/scroll16.c
+++ b/src/lib/scroll16.c
@@ -486,7 +486,7 @@ void near ScrollRight(map_view_t *mv, player_t *player, word id, word plid)
 	if(mv[0].video->page[id].dx >= mv[0].dxThresh )
 	{
 		/* Snap the origin forward */
-		mv[0].video->page[id].data += 4;
+		mv[0].video->page[id].data += mv[0].video->page[id].pi;
 		mv[0].video->page[id].dx = mv[0].map->tiles->tileWidth;
 	}
 }
@@ -501,7 +501,7 @@ void near ScrollLeft(map_view_t *mv, player_t *player, word id, word plid)
 	if(mv[0].video->page[id].dx == 0)
 	{
 		/* Snap the origin backward */
-		mv[0].video->page[id].data -= 4;
+		mv[0].video->page[id].data -= mv[0].video->page[id].pi;
 		mv[0].video->page[id].dx = mv[0].map->tiles->tileWidth;
 	}
 }
@@ -515,7 +515,7 @@ void near ScrollUp(map_view_t *mv, player_t *player, word id, word plid)
 	if(mv[0].video->page[id].dy == 0)
 	{
 		/* Snap the origin backward */
-		mv[0].video->page[id].data -= 1408;//4;
+		mv[0].video->page[id].data -= mv[0].video->page[id].pi;//4;
 		mv[0].video->page[id].dy = mv[0].map->tiles->tileWidth;
 	}
 }
@@ -529,7 +529,7 @@ void near ScrollDown(map_view_t *mv, player_t *player, word id, word plid)
 	if(mv[0].video->page[id].dy >= mv[0].dxThresh )
 	{
 		/* Snap the origin forward */
-		mv[0].video->page[id].data += 1408;//4;
+		mv[0].video->page[id].data += mv[0].video->page[id].pi;//4;
 		mv[0].video->page[id].dy = mv[0].map->tiles->tileWidth;
 	}
 }
diff --git a/src/lib/typdefst.h b/src/lib/typdefst.h
index 91ca7c79..7dbe38a1 100755
--- a/src/lib/typdefst.h
+++ b/src/lib/typdefst.h
@@ -84,6 +84,7 @@ typedef struct {
 	sword tileplayerposscreeny;	/* player position on screen */
 	word stridew;			/*width/4*/
 	word pagesize;			/* page size */
+	word pi;				/* incremention page by this much to preserve location */
 } page_t;
 
 typedef struct
-- 
2.39.5