// the XML parser calls here with all the elements
void TMXMapInfo::startElement(void *ctx, const char *name, const char **atts)
{
CC_UNUSED_PARAM(ctx);
TMXMapInfo *tmxMapInfo = this;
std::string elementName = name;
ValueMap attributeDict;
if (atts && atts[0])
{
for (int i = 0; atts[i]; i += 2)
{
std::string key = atts[i];
std::string value = atts[i+1];
attributeDict.insert(std::make_pair(key, Value(value)));
}
}
if (elementName == "map")
{
std::string version = attributeDict["version"].asString();
if ( version != "1.0")
{
CCLOG("cocos2d: TMXFormat: Unsupported TMX version: %s", version.c_str());
}
std::string orientationStr = attributeDict["orientation"].asString();
if (orientationStr == "orthogonal") {
tmxMapInfo->setOrientation(TMXOrientationOrtho);
}
else if (orientationStr == "isometric") {
tmxMapInfo->setOrientation(TMXOrientationIso);
}
else if (orientationStr == "hexagonal") {
tmxMapInfo->setOrientation(TMXOrientationHex);
}
else if (orientationStr == "staggered") {
tmxMapInfo->setOrientation(TMXOrientationStaggered);
}
else {
CCLOG("cocos2d: TMXFomat: Unsupported orientation: %d", tmxMapInfo->getOrientation());
}
Size s;
s.width = attributeDict["width"].asFloat();
s.height = attributeDict["height"].asFloat();
tmxMapInfo->setMapSize(s);
s.width = attributeDict["tilewidth"].asFloat();
s.height = attributeDict["tileheight"].asFloat();
tmxMapInfo->setTileSize(s);
// The parent element is now "map"
tmxMapInfo->setParentElement(TMXPropertyMap);
}
else if (elementName == "tileset")
{
// If this is an external tileset then start parsing that
std::string externalTilesetFilename = attributeDict["source"].asString();
if (externalTilesetFilename != "")
{
_externalTilesetFilename = externalTilesetFilename;
// Tileset file will be relative to the map file. So we need to convert it to an absolute path
if (_TMXFileName.find_last_of("/") != string::npos)
{
string dir = _TMXFileName.substr(0, _TMXFileName.find_last_of("/") + 1);
externalTilesetFilename = dir + externalTilesetFilename;
}
else
{
externalTilesetFilename = _resources + "/" + externalTilesetFilename;
}
externalTilesetFilename = FileUtils::getInstance()->fullPathForFilename(externalTilesetFilename);
_currentFirstGID = attributeDict["firstgid"].asInt();
if (_currentFirstGID < 0)
{
_currentFirstGID = 0;
}
_recordFirstGID = false;
tmxMapInfo->parseXMLFile(externalTilesetFilename);
}
else
{
TMXTilesetInfo *tileset = new (std::nothrow) TMXTilesetInfo();
tileset->_name = attributeDict["name"].asString();
if (_recordFirstGID)
{
// unset before, so this is tmx file.
tileset->_firstGid = attributeDict["firstgid"].asInt();
if (tileset->_firstGid < 0)
{
tileset->_firstGid = 0;
}
}
else
{
tileset->_firstGid = _currentFirstGID;
_currentFirstGID = 0;
}
tileset->_spacing = attributeDict["spacing"].asInt();
tileset->_margin = attributeDict["margin"].asInt();
Size s;
s.width = attributeDict["tilewidth"].asFloat();
s.height = attributeDict["tileheight"].asFloat();
tileset->_tileSize = s;
tmxMapInfo->getTilesets().pushBack(tileset);
tileset->release();
}
}
else if (elementName == "tile")
{
if (tmxMapInfo->getParentElement() == TMXPropertyLayer)
{
TMXLayerInfo* layer = tmxMapInfo->getLayers().back();
Size layerSize = layer->_layerSize;
uint32_t gid = static_cast<uint32_t>(attributeDict["gid"].asInt());
int tilesAmount = layerSize.width*layerSize.height;
if (_xmlTileIndex < tilesAmount)
{
layer->_tiles[_xmlTileIndex++] = gid;
}
}
else
{
TMXTilesetInfo* info = tmxMapInfo->getTilesets().back();
tmxMapInfo->setParentGID(info->_firstGid + attributeDict["id"].asInt());
tmxMapInfo->getTileProperties()[tmxMapInfo->getParentGID()] = Value(ValueMap());
tmxMapInfo->setParentElement(TMXPropertyTile);
}
}
else if (elementName == "layer")
{
TMXLayerInfo *layer = new (std::nothrow) TMXLayerInfo();
layer->_name = attributeDict["name"].asString();
Size s;
s.width = attributeDict["width"].asFloat();
s.height = attributeDict["height"].asFloat();
layer->_layerSize = s;
Value& visibleValue = attributeDict["visible"];
layer->_visible = visibleValue.isNull() ? true : visibleValue.asBool();
Value& opacityValue = attributeDict["opacity"];
layer->_opacity = opacityValue.isNull() ? 255 : (unsigned char)(255.0f * opacityValue.asFloat());
float x = attributeDict["x"].asFloat();
float y = attributeDict["y"].asFloat();
layer->_offset.set(x, y);
tmxMapInfo->getLayers().pushBack(layer);
layer->release();
// The parent element is now "layer"
tmxMapInfo->setParentElement(TMXPropertyLayer);
}
else if (elementName == "objectgroup")
{
TMXObjectGroup *objectGroup = new (std::nothrow) TMXObjectGroup();
objectGroup->setGroupName(attributeDict["name"].asString());
Vec2 positionOffset;
positionOffset.x = attributeDict["x"].asFloat() * tmxMapInfo->getTileSize().width;
positionOffset.y = attributeDict["y"].asFloat() * tmxMapInfo->getTileSize().height;
objectGroup->setPositionOffset(positionOffset);
tmxMapInfo->getObjectGroups().pushBack(objectGroup);
objectGroup->release();
// The parent element is now "objectgroup"
tmxMapInfo->setParentElement(TMXPropertyObjectGroup);
}
else if (elementName == "image")
{
TMXTilesetInfo* tileset = tmxMapInfo->getTilesets().back();
// build full path
std::string imagename = attributeDict["source"].asString();
tileset->_originSourceImage = imagename;
if (_TMXFileName.find_last_of("/") != string::npos)
{
string dir = _TMXFileName.substr(0, _TMXFileName.find_last_of("/") + 1);
tileset->_sourceImage = dir + imagename;
}
else
{
tileset->_sourceImage = _resources + (_resources.size() ? "/" : "") + imagename;
}
}
else if (elementName == "data")
{
std::string encoding = attributeDict["encoding"].asString();
std::string compression = attributeDict["compression"].asString();
if (encoding == "")
{
tmxMapInfo->setLayerAttribs(tmxMapInfo->getLayerAttribs() | TMXLayerAttribNone);
TMXLayerInfo* layer = tmxMapInfo->getLayers().back();
Size layerSize = layer->_layerSize;
int tilesAmount = layerSize.width*layerSize.height;
uint32_t *tiles = (uint32_t*) malloc(tilesAmount*sizeof(uint32_t));
// set all value to 0
memset(tiles, 0, tilesAmount*sizeof(int));
layer->_tiles = tiles;
}
else if (encoding == "base64")
{
int layerAttribs = tmxMapInfo->getLayerAttribs();
tmxMapInfo->setLayerAttribs(layerAttribs | TMXLayerAttribBase64);
tmxMapInfo->setStoringCharacters(true);
if (compression == "gzip")
{
layerAttribs = tmxMapInfo->getLayerAttribs();
tmxMapInfo->setLayerAttribs(layerAttribs | TMXLayerAttribGzip);
} else
if (compression == "zlib")
{
layerAttribs = tmxMapInfo->getLayerAttribs();
tmxMapInfo->setLayerAttribs(layerAttribs | TMXLayerAttribZlib);
}
CCASSERT( compression == "" || compression == "gzip" || compression == "zlib", "TMX: unsupported compression method" );
}
}
else if (elementName == "object")
{
TMXObjectGroup* objectGroup = tmxMapInfo->getObjectGroups().back();
// The value for "type" was blank or not a valid class name
// Create an instance of TMXObjectInfo to store the object and its properties
ValueMap dict;
// Parse everything automatically
const char* keys[] = {"name", "type", "width", "height", "gid"};
for (const auto& key : keys)
{
Value value = attributeDict[key];
dict[key] = value;
}
// But X and Y since they need special treatment
// X
int x = attributeDict["x"].asInt();
// Y
int y = attributeDict["y"].asInt();
Vec2 p(x + objectGroup->getPositionOffset().x, _mapSize.height * _tileSize.height - y - objectGroup->getPositionOffset().y - attributeDict["height"].asInt());
p = CC_POINT_PIXELS_TO_POINTS(p);
dict["x"] = Value(p.x);
dict["y"] = Value(p.y);
int width = attributeDict["width"].asInt();
int height = attributeDict["height"].asInt();
Size s(width, height);
s = CC_SIZE_PIXELS_TO_POINTS(s);
dict["width"] = Value(s.width);
dict["height"] = Value(s.height);
// Add the object to the objectGroup
objectGroup->getObjects().push_back(Value(dict));
// The parent element is now "object"
tmxMapInfo->setParentElement(TMXPropertyObject);
}
else if (elementName == "property")
{
if ( tmxMapInfo->getParentElement() == TMXPropertyNone )
{
CCLOG( "TMX tile map: Parent element is unsupported. Cannot add property named '%s' with value '%s'",
attributeDict["name"].asString().c_str(), attributeDict["value"].asString().c_str() );
}
else if ( tmxMapInfo->getParentElement() == TMXPropertyMap )
{
// The parent element is the map
Value value = attributeDict["value"];
std::string key = attributeDict["name"].asString();
tmxMapInfo->getProperties().insert(std::make_pair(key, value));
}
else if ( tmxMapInfo->getParentElement() == TMXPropertyLayer )
{
// The parent element is the last layer
TMXLayerInfo* layer = tmxMapInfo->getLayers().back();
Value value = attributeDict["value"];
std::string key = attributeDict["name"].asString();
// Add the property to the layer
layer->getProperties().insert(std::make_pair(key, value));
}
else if ( tmxMapInfo->getParentElement() == TMXPropertyObjectGroup )
{
// The parent element is the last object group
TMXObjectGroup* objectGroup = tmxMapInfo->getObjectGroups().back();
Value value = attributeDict["value"];
std::string key = attributeDict["name"].asString();
objectGroup->getProperties().insert(std::make_pair(key, value));
}
else if ( tmxMapInfo->getParentElement() == TMXPropertyObject )
{
// The parent element is the last object
TMXObjectGroup* objectGroup = tmxMapInfo->getObjectGroups().back();
ValueMap& dict = objectGroup->getObjects().rbegin()->asValueMap();
std::string propertyName = attributeDict["name"].asString();
dict[propertyName] = attributeDict["value"];
}
else if ( tmxMapInfo->getParentElement() == TMXPropertyTile )
{
ValueMap& dict = tmxMapInfo->getTileProperties().at(tmxMapInfo->getParentGID()).asValueMap();
std::string propertyName = attributeDict["name"].asString();
dict[propertyName] = attributeDict["value"];
}
}
else if (elementName == "polygon")
{
// find parent object's dict and add polygon-points to it
TMXObjectGroup* objectGroup = _objectGroups.back();
ValueMap& dict = objectGroup->getObjects().rbegin()->asValueMap();
// get points value string
std::string value = attributeDict["points"].asString();
if (!value.empty())
{
ValueVector pointsArray;
pointsArray.reserve(10);
// parse points string into a space-separated set of points
stringstream pointsStream(value);
string pointPair;
while (std::getline(pointsStream, pointPair, ' '))
{
// parse each point combo into a comma-separated x,y point
stringstream pointStream(pointPair);
string xStr, yStr;
ValueMap pointDict;
// set x
if (std::getline(pointStream, xStr, ','))
{
int x = atoi(xStr.c_str()) + (int)objectGroup->getPositionOffset().x;
pointDict["x"] = Value(x);
}
// set y
if (std::getline(pointStream, yStr, ','))
{
int y = atoi(yStr.c_str()) + (int)objectGroup->getPositionOffset().y;
pointDict["y"] = Value(y);
}
// add to points array
pointsArray.push_back(Value(pointDict));
}
dict["points"] = Value(pointsArray);
}
}
else if (elementName == "polyline")
{
// find parent object's dict and add polyline-points to it
TMXObjectGroup* objectGroup = _objectGroups.back();
ValueMap& dict = objectGroup->getObjects().rbegin()->asValueMap();
// get points value string
std::string value = attributeDict["points"].asString();
if (!value.empty())
{
ValueVector pointsArray;
pointsArray.reserve(10);
// parse points string into a space-separated set of points
stringstream pointsStream(value);
string pointPair;
while (std::getline(pointsStream, pointPair, ' '))
{
// parse each point combo into a comma-separated x,y point
stringstream pointStream(pointPair);
string xStr, yStr;
ValueMap pointDict;
// set x
if (std::getline(pointStream, xStr, ','))
{
int x = atoi(xStr.c_str()) + (int)objectGroup->getPositionOffset().x;
pointDict["x"] = Value(x);
}
// set y
if (std::getline(pointStream, yStr, ','))
{
int y = atoi(yStr.c_str()) + (int)objectGroup->getPositionOffset().y;
pointDict["y"] = Value(y);
}
// add to points array
pointsArray.push_back(Value(pointDict));
}
dict["polylinePoints"] = Value(pointsArray);
}
}
}
void TMXMapInfo::endElement(void *ctx, const char *name)
{
CC_UNUSED_PARAM(ctx);
TMXMapInfo *tmxMapInfo = this;
std::string elementName = name;
if (elementName == "data")
{
if (tmxMapInfo->getLayerAttribs() & TMXLayerAttribBase64)
{
tmxMapInfo->setStoringCharacters(false);
TMXLayerInfo* layer = tmxMapInfo->getLayers().back();
std::string currentString = tmxMapInfo->getCurrentString();
unsigned char *buffer;
auto len = base64Decode((unsigned char*)currentString.c_str(), (unsigned int)currentString.length(), &buffer);
if (!buffer)
{
CCLOG("cocos2d: TiledMap: decode data error");
return;
}
if (tmxMapInfo->getLayerAttribs() & (TMXLayerAttribGzip | TMXLayerAttribZlib))
{
unsigned char *deflated = nullptr;
Size s = layer->_layerSize;
// int sizeHint = s.width * s.height * sizeof(uint32_t);
ssize_t sizeHint = s.width * s.height * sizeof(unsigned int);
ssize_t CC_UNUSED inflatedLen = ZipUtils::inflateMemoryWithHint(buffer, len, &deflated, sizeHint);
CCASSERT(inflatedLen == sizeHint, "inflatedLen should be equal to sizeHint!");
free(buffer);
buffer = nullptr;
if (!deflated)
{
CCLOG("cocos2d: TiledMap: inflate data error");
return;
}
layer->_tiles = reinterpret_cast<uint32_t*>(deflated);
}
else
{
layer->_tiles = reinterpret_cast<uint32_t*>(buffer);
}
tmxMapInfo->setCurrentString("");
}
else if (tmxMapInfo->getLayerAttribs() & TMXLayerAttribNone)
{
_xmlTileIndex = 0;
}
}
else if (elementName == "map")
{
// The map element has ended
tmxMapInfo->setParentElement(TMXPropertyNone);
}
else if (elementName == "layer")
{
// The layer element has ended
tmxMapInfo->setParentElement(TMXPropertyNone);
}
else if (elementName == "objectgroup")
{
// The objectgroup element has ended
tmxMapInfo->setParentElement(TMXPropertyNone);
}
else if (elementName == "object")
{
// The object element has ended
tmxMapInfo->setParentElement(TMXPropertyNone);
}
else if (elementName == "tileset")
{
_recordFirstGID = true;
}
}
void TMXMapInfo::endElement(void *ctx, const char *name)
{
CC_UNUSED_PARAM(ctx);
TMXMapInfo *tmxMapInfo = this;
std::string elementName = name;
if (elementName == "data")
{
if (tmxMapInfo->getLayerAttribs() & TMXLayerAttribBase64)
{
tmxMapInfo->setStoringCharacters(false);
TMXLayerInfo* layer = tmxMapInfo->getLayers().back();
std::string currentString = tmxMapInfo->getCurrentString();
unsigned char *buffer;
auto len = base64Decode((unsigned char*)currentString.c_str(), (unsigned int)currentString.length(), &buffer);
if (!buffer)
{
CCLOG("cocos2d: TiledMap: decode data error");
return;
}
if (tmxMapInfo->getLayerAttribs() & (TMXLayerAttribGzip | TMXLayerAttribZlib))
{
unsigned char *deflated = nullptr;
Size s = layer->_layerSize;
// int sizeHint = s.width * s.height * sizeof(uint32_t);
ssize_t sizeHint = s.width * s.height * sizeof(unsigned int);
ssize_t CC_UNUSED inflatedLen = ZipUtils::inflateMemoryWithHint(buffer, len, &deflated, sizeHint);
CCASSERT(inflatedLen == sizeHint, "inflatedLen should be equal to sizeHint!");
free(buffer);
buffer = nullptr;
if (!deflated)
{
CCLOG("cocos2d: TiledMap: inflate data error");
return;
}
layer->_tiles = reinterpret_cast<uint32_t*>(deflated);
}
else
{
layer->_tiles = reinterpret_cast<uint32_t*>(buffer);
}
tmxMapInfo->setCurrentString("");
}
else if (tmxMapInfo->getLayerAttribs() & TMXLayerAttribCSV)
{
unsigned char *buffer;
TMXLayerInfo* layer = tmxMapInfo->getLayers().back();
tmxMapInfo->setStoringCharacters(false);
std::string currentString = tmxMapInfo->getCurrentString();
vector<string> gidTokens;
istringstream filestr(currentString);
string sRow;
while(getline(filestr, sRow, '\n')) {
string sGID;
istringstream rowstr(sRow);
while (getline(rowstr, sGID, ',')) {
gidTokens.push_back(sGID);
}
}
// 32-bits per gid
buffer = (unsigned char*)malloc(gidTokens.size() * 4);
if (!buffer)
{
CCLOG("cocos2d: TiledMap: CSV buffer not allocated.");
return;
}
uint32_t* bufferPtr = reinterpret_cast<uint32_t*>(buffer);
for(auto gidToken : gidTokens) {
auto tileGid = (uint32_t)strtol(gidToken.c_str(), nullptr, 10);
*bufferPtr = tileGid;
bufferPtr++;
}
layer->_tiles = reinterpret_cast<uint32_t*>(buffer);
tmxMapInfo->setCurrentString("");
}
else if (tmxMapInfo->getLayerAttribs() & TMXLayerAttribNone)
{
_xmlTileIndex = 0;
}
}
else if (elementName == "map")
{
// The map element has ended
tmxMapInfo->setParentElement(TMXPropertyNone);
}
else if (elementName == "layer")
{
// The layer element has ended
tmxMapInfo->setParentElement(TMXPropertyNone);
}
else if (elementName == "objectgroup")
{
// The objectgroup element has ended
tmxMapInfo->setParentElement(TMXPropertyNone);
}
else if (elementName == "object")
{
// The object element has ended
tmxMapInfo->setParentElement(TMXPropertyNone);
}
else if (elementName == "tileset")
{
_recordFirstGID = true;
}
}