/**
* Load a TilED map
*
* @param in The input stream from which to load the map
* @param tileSetsLocation The location from which we can retrieve tileset images
* @throws SlickException Indicates a failure to parse the map or find a tileset
*/
private void load(InputStream in, String tileSetsLocation) throws SlickException {
tilesLocation = tileSetsLocation;
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(false);
DocumentBuilder builder = factory.newDocumentBuilder();
builder.setEntityResolver(
new EntityResolver() {
public InputSource resolveEntity(String publicId, String systemId)
throws SAXException, IOException {
return new InputSource(new ByteArrayInputStream(new byte[0]));
}
});
Document doc = builder.parse(in);
Element docElement = doc.getDocumentElement();
if (docElement.getAttribute("orientation").equals("orthogonal")) {
orientation = ORTHOGONAL;
} else {
orientation = ISOMETRIC;
}
width = Integer.parseInt(docElement.getAttribute("width"));
height = Integer.parseInt(docElement.getAttribute("height"));
tileWidth = Integer.parseInt(docElement.getAttribute("tilewidth"));
tileHeight = Integer.parseInt(docElement.getAttribute("tileheight"));
// now read the map properties
Element propsElement = (Element) docElement.getElementsByTagName("properties").item(0);
if (propsElement != null) {
NodeList properties = propsElement.getElementsByTagName("property");
if (properties != null) {
props = new Properties();
for (int p = 0; p < properties.getLength(); p++) {
Element propElement = (Element) properties.item(p);
String name = propElement.getAttribute("name");
String value = propElement.getAttribute("value");
props.setProperty(name, value);
}
}
}
if (loadTileSets) {
TileSet tileSet = null;
TileSet lastSet = null;
NodeList setNodes = docElement.getElementsByTagName("tileset");
for (int i = 0; i < setNodes.getLength(); i++) {
Element current = (Element) setNodes.item(i);
tileSet = new TileSet(this, current, !headless);
tileSet.index = i;
if (lastSet != null) {
lastSet.setLimit(tileSet.firstGID - 1);
}
lastSet = tileSet;
tileSets.add(tileSet);
}
}
NodeList layerNodes = docElement.getElementsByTagName("layer");
for (int i = 0; i < layerNodes.getLength(); i++) {
Element current = (Element) layerNodes.item(i);
Layer layer = new Layer(this, current);
layer.index = i;
layers.add(layer);
}
// acquire object-groups
NodeList objectGroupNodes = docElement.getElementsByTagName("objectgroup");
for (int i = 0; i < objectGroupNodes.getLength(); i++) {
Element current = (Element) objectGroupNodes.item(i);
ObjectGroup objectGroup = new ObjectGroup(current, this);
objectGroup.index = i;
objectGroups.add(objectGroup);
}
} catch (Exception e) {
Log.error(e);
throw new SlickException("Failed to parse tilemap", e);
}
}
