From 117526ec778fcdaf487897dab0b517aeafce5e64 Mon Sep 17 00:00:00 2001
From: Duncan Frost <duncans_pumpkin@hotmail.co.uk>
Date: Sat, 6 Jun 2015 20:12:21 +0100
Subject: [PATCH] Fix #1239. Issue caused by sign extension.

---
 src/world/footpath.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/world/footpath.c b/src/world/footpath.c
index 5cc366dc8b..30f19d67dd 100644
--- a/src/world/footpath.c
+++ b/src/world/footpath.c
@@ -499,7 +499,7 @@ void footpath_get_coordinates_from_pos(int screenX, int screenY, int *x, int *y,
 	if (interactionType != VIEWPORT_INTERACTION_ITEM_FOOTPATH || !(viewport->flags & (VIEWPORT_FLAG_UNDERGROUND_INSIDE | VIEWPORT_FLAG_HIDE_BASE | VIEWPORT_FLAG_HIDE_VERTICAL))) {
 		get_map_coordinates_from_pos(screenX, screenY, VIEWPORT_INTERACTION_MASK_FOOTPATH & VIEWPORT_INTERACTION_MASK_TERRAIN, &map_pos.x, &map_pos.y, &interactionType, &myMapElement, &viewport);
 		if (interactionType == VIEWPORT_INTERACTION_ITEM_NONE) {
-			if (x != NULL) *x = 0x8000;
+			if (x != NULL) *x = (sint16)0x8000;
 			return;
 		}
 	}