Completed parsing of multi-layer scene XML files.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@123 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Walter Korman
2001-07-25 01:38:08 +00:00
parent 14d47f8c85
commit 9bec86fe87
2 changed files with 123 additions and 39 deletions
@@ -1,5 +1,5 @@
//
// $Id: DisplayMisoSceneImpl.java,v 1.13 2001/07/24 22:52:02 shaper Exp $
// $Id: DisplayMisoSceneImpl.java,v 1.14 2001/07/25 01:38:08 shaper Exp $
package com.threerings.miso.scene;
@@ -174,7 +174,7 @@ public class Scene
/** The unique scene id. */
protected short _sid;
/** Hot-spot zone points */
/** Hot-spot zone points. */
protected Point _hotspots[];
/** Exit points to different scenes. */
@@ -1,5 +1,5 @@
//
// $Id: XMLSceneParser.java,v 1.2 2001/07/24 22:52:02 shaper Exp $
// $Id: XMLSceneParser.java,v 1.3 2001/07/25 01:38:08 shaper Exp $
package com.threerings.miso.scene.xml;
@@ -35,35 +35,29 @@ public class XMLSceneParser extends DefaultHandler
String qName, Attributes attributes)
{
_tag = qName;
if (_tag.equals("layer")) {
_scLnum = getInt(attributes.getValue("lnum"));
} else if (_tag.equals("row")) {
_scRownum = getInt(attributes.getValue("rownum"));
// get the column start value if present
String strcs = attributes.getValue("colstart");
if (strcs != null) _scColstart = getInt(strcs);
}
}
public void endElement (String uri, String localName, String qName)
{
// construct the scene object on tag close
if (qName.equals("scene")) {
_scene = new Scene(_tilemgr, Scene.SID_INVALID);
Log.info("Constructed parsed scene [scene=" + _scene + "].");
}
// we know we've received the entirety of the character data
// for the elements we're tracking at this point, so proceed
// with saving off element values for use when we construct
// the scene object.
if (qName.equals("name")) {
_scName = _chars.toString().trim();
// note that we're not within a tag to avoid considering any
// characters during this quiescent time
_tag = null;
}
public void characters (char ch[], int start, int length)
{
// bail if we're not within a meaningful tag
if (_tag == null) return;
String str = String.copyValueOf(ch, start, length);
// store the value associated with the current tag for use
// when we construct the tileset object.
if (_tag.equals("name")) {
_scName = str;
} else if (_tag.equals("version")) {
int version = getInt(str);
} else if (qName.equals("version")) {
int version = getInt(_chars.toString());
if (version < 0 || version > Scene.VERSION) {
Log.warning(
"Unrecognized scene file format version, will attempt " +
@@ -72,19 +66,102 @@ public class XMLSceneParser extends DefaultHandler
", known_version=" + Scene.VERSION + "].");
}
} else if (_tag.equals("hotspots")) {
_scHotspots = toPointArray(StringUtil.parseIntArray(str));
} else if (qName.equals("hotspots")) {
int vals[] = StringUtil.parseIntArray(_chars.toString());
_scHotspots = toPointArray(vals);
} else if (_tag.equals("exits")) {
_scExits = toExitPointArray(StringUtil.parseStringArray(str));
} else if (qName.equals("exits")) {
String vals[] = StringUtil.parseStringArray(_chars.toString());
_scExits = toExitPointArray(vals);
} else if (qName.equals("row")) {
if (_scLnum == Scene.LAYER_BASE) {
readRowData(_chars.toString());
} else {
readSparseRowData(_chars.toString());
}
} else if (qName.equals("scene")) {
// construct the scene object on tag close
_scene = new Scene(_tilemgr, Scene.SID_INVALID, _scName,
_scHotspots, _scExits, _scTiles);
Log.info("Constructed parsed scene [scene=" + _scene + "].");
}
// TODO:
// tiles
// layer lnum="0"
// row <rownum="X">
// layer lnum="1"
// row <rownum="X" colstart="Y">
// note that we're not within a tag to avoid considering any
// characters during this quiescent time
_tag = null;
// and clear out the character data we're gathering
_chars = new StringBuffer();
}
public void characters (char ch[], int start, int length)
{
// bail if we're not within a meaningful tag
if (_tag == null) return;
_chars.append(ch, start, length);
}
/**
* Given a string of comma-delimited tuples as (tileset id, tile
* id), populate the <code>_scTiles</code> tile array with tiles
* to suit.
*
* @param data the tile data.
*/
protected void readRowData (String data)
{
int[] vals = StringUtil.parseIntArray(data);
// make sure we have a suitable number of tiles
int validLen = Scene.TILE_WIDTH * 2;
if (vals.length != validLen) {
Log.warning(
"Invalid number of tiles in full row data set, skipping set " +
"[rownum=" + _scRownum + ", len=" + vals.length +
", valid_len=" + validLen + ", data=" + data + "].");
return;
}
// create the tile objects in the tile array
for (int xx = 0; xx < vals.length; xx += 2) {
Tile tile = _tilemgr.getTile(vals[xx], vals[xx + 1]);
_scTiles[xx / 2][_scRownum][_scLnum] = tile;
}
}
/**
* Given a string of comma-delimited tuples as (tileset id, tile
* id) and having previously set up the <code>_scRownum</code> and
* <code>_scColstart</code> member data by retrieving the
* attribute values when the <code>row</code> element tag was
* noted, this method then proceeds to populate the
* <code>_scTiles</code> tile array with tiles to suit.
*
* @param data the tile data.
*/
protected void readSparseRowData (String data)
{
int[] vals = StringUtil.parseIntArray(data);
// make sure we have a suitable number of tiles
if ((vals.length % 2) == 1) {
Log.warning(
"Odd number of tiles in sparse row data set, skipping set " +
"[rownum=" + _scRownum + ", colstart=" + _scColstart +
", len=" + vals.length + "].");
return;
}
// create the tile objects in the tile array
Log.info("Sparse row data [colstart=" + _scColstart +
", rownum=" + _scRownum + ", lnum=" + _scLnum + "].");
for (int xx = 0; xx < vals.length; xx += 2) {
Tile tile = _tilemgr.getTile(vals[xx], vals[xx + 1]);
_scTiles[_scColstart + (xx / 2)][_scRownum][_scLnum] = tile;
}
}
/**
@@ -178,8 +255,13 @@ public class XMLSceneParser extends DefaultHandler
FileInputStream fis = new FileInputStream(fname);
BufferedInputStream bis = new BufferedInputStream(fis);
// read the XML input stream and construct the scene object
// prepare temporary data storage for parsing
_chars = new StringBuffer();
_scene = null;
int width = Scene.TILE_WIDTH, height = Scene.TILE_HEIGHT;
_scTiles = new Tile[width][height][Scene.NUM_LAYERS];
// read the XML input stream and construct the scene object
XMLUtil.parse(this, bis);
// return the final scene object
@@ -205,9 +287,11 @@ public class XMLSceneParser extends DefaultHandler
/** The tile manager object for use in constructing scenes. */
protected TileManager _tilemgr;
// temporary storage of scene object values
// temporary storage of scene object values and data
protected StringBuffer _chars;
protected String _scName;
protected Point[] _scHotspots;
protected ExitPoint[] _scExits;
protected Tile[][][] _scTiles;
protected int _scLnum, _scRownum, _scColstart;
}