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-rw-r--r--src/resources/mapreader.cpp21
1 files changed, 16 insertions, 5 deletions
diff --git a/src/resources/mapreader.cpp b/src/resources/mapreader.cpp
index 82d0e0b4..b2642ae8 100644
--- a/src/resources/mapreader.cpp
+++ b/src/resources/mapreader.cpp
@@ -220,8 +220,19 @@ void MapReader::readProperties(xmlNodePtr node, Properties *props)
}
}
-static void setTile(Map *map, MapLayer *layer, int x, int y, int gid)
+static void setTile(Map *map, MapLayer *layer, int x, int y, unsigned gid)
{
+ // Bits on the far end of the 32-bit global tile ID are used for tile flags
+ const int FlippedHorizontallyFlag = 0x80000000;
+ const int FlippedVerticallyFlag = 0x40000000;
+ const int FlippedAntiDiagonallyFlag = 0x20000000;
+
+ // Clear the flags
+ // TODO: It would be nice to properly support these flags later
+ gid &= ~(FlippedHorizontallyFlag |
+ FlippedVerticallyFlag |
+ FlippedAntiDiagonallyFlag);
+
const Tileset * const set = map->getTilesetWithGid(gid);
if (layer)
{
@@ -333,7 +344,7 @@ void MapReader::readLayer(xmlNodePtr node, Map *map)
for (int i = 0; i < binLen - 3; i += 4)
{
- const int gid = binData[i] |
+ const unsigned gid = binData[i] |
binData[i + 1] << 8 |
binData[i + 2] << 16 |
binData[i + 3] << 24;
@@ -375,7 +386,7 @@ void MapReader::readLayer(xmlNodePtr node, Map *map)
{
pos = csv.find_first_of(",", oldPos);
- const int gid = atoi(csv.substr(oldPos, pos - oldPos).c_str());
+ unsigned gid = atol(csv.substr(oldPos, pos - oldPos).c_str());
setTile(map, layer, x, y, gid);
@@ -400,7 +411,7 @@ void MapReader::readLayer(xmlNodePtr node, Map *map)
if (!xmlStrEqual(childNode2->name, BAD_CAST "tile"))
continue;
- const int gid = XML::getProperty(childNode2, "gid", -1);
+ unsigned gid = XML::getProperty(childNode2, "gid", 0);
setTile(map, layer, x, y, gid);
x++;
@@ -426,7 +437,7 @@ void MapReader::readLayer(xmlNodePtr node, Map *map)
Tileset *MapReader::readTileset(xmlNodePtr node, const std::string &path,
Map *map)
{
- int firstGid = XML::getProperty(node, "firstgid", 0);
+ unsigned firstGid = XML::getProperty(node, "firstgid", 0);
int margin = XML::getProperty(node, "margin", 0);
int spacing = XML::getProperty(node, "spacing", 0);
XML::Document* doc = NULL;