From 1313dad568829cb1fa1cafbf36e784d7a2271483 Mon Sep 17 00:00:00 2001
From: King_DuckZ <king_duckz@gmx.com>
Date: Fri, 4 Nov 2016 20:31:41 +0100
Subject: [PATCH] Allow moving past the top-left edge of the world.

---
 src/worldviewport.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/worldviewport.cpp b/src/worldviewport.cpp
index 99f57ce..9b72e61 100644
--- a/src/worldviewport.cpp
+++ b/src/worldviewport.cpp
@@ -2,6 +2,7 @@
 #include "worldgrid.hpp"
 #include "compatibility.h"
 #include <cassert>
+#include <algorithm>
 
 namespace curry {
 	namespace {
@@ -11,8 +12,8 @@ namespace curry {
 			const auto pos = vector_cast<vec2i>(parViewport.position());
 			const auto ts = parViewport.world()->tile_size();
 			return vec2us(
-				static_cast<uint16_t>(pos.x() / ts.x()),
-				static_cast<uint16_t>(pos.y() / ts.y())
+				static_cast<uint16_t>(std::max(0, pos.x()) / ts.x()),
+				static_cast<uint16_t>(std::max(0, pos.y()) / ts.y())
 			);
 		}
 	} //unnamed namespace