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More progress toward arbitrarily scrollable scenes. The IsoSceneView still

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requests all objects in God's green earth, but we now have the necessary
structures for it to request new objects as they scroll (nearly) into view
and for it to abandon objects as they scroll (way) out of view.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1742 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Michael Bayne
2002-09-23 21:54:50 +00:00
parent 552d73de59
commit 92c8748c7c
6 changed files with 112 additions and 167 deletions
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src/java/com/threerings/miso/client/DisplayMisoSceneImpl.java
+39 -55
View File
@@ -1,12 +1,11 @@
//
// $Id: DisplayMisoSceneImpl.java,v 1.60 2002/09/18 02:32:57 mdb Exp $
// $Id: DisplayMisoSceneImpl.java,v 1.61 2002/09/23 21:54:50 mdb Exp $
package com.threerings.miso.scene;
import java.awt.Point;
import java.awt.Rectangle;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Random;
import com.samskivert.util.StringUtil;
@@ -19,6 +18,7 @@ import com.threerings.media.tile.TileException;
import com.threerings.media.tile.TileLayer;
import com.threerings.miso.Log;
import com.threerings.miso.scene.util.ObjectSet;
import com.threerings.miso.tile.AutoFringer;
import com.threerings.miso.tile.BaseTile;
import com.threerings.miso.tile.BaseTileLayer;
@@ -157,32 +157,34 @@ public class DisplayMisoSceneImpl
* Called to expand each object read from the model into an actual
* object tile instance with the appropriate additional data.
*
* @return the object info record for the newly created object tile
* @return the scene object record for the newly created object tile
* (which will have been put into all the appropriate lists and
* tables).
*/
protected ObjectInfo expandObject (
protected SceneObject expandObject (
int col, int row, int tsid, int tid, int fqTid, String action)
throws NoSuchTileException, NoSuchTileSetException
{
// create and initialize an object info record for this object
ObjectInfo oinfo = createObjectInfo();
oinfo.object = (ObjectTile)_tmgr.getTile(tsid, tid);
oinfo.coords = new Point(col, row);
SceneObject scobj = createSceneObject(
col, row, (ObjectTile)_tmgr.getTile(tsid, tid));
if (!StringUtil.blank(action)) {
oinfo.action = action;
scobj.action = action;
}
// generate a "shadow" for this object tile by toggling the
// "covered" flag on in all base tiles below it (to prevent
// sprites from walking on those tiles)
setObjectTileFootprint(oinfo.object, col, row, true);
setObjectTileFootprint(scobj.tile, col, row, true);
// assign the object its index
scobj.index = _objects.size();
// add the info record to the list
_objects.add(oinfo);
_objects.add(scobj);
// return the object info so that derived classes may access it
return oinfo;
return scobj;
}
// documentation inherited from interface
@@ -198,27 +200,19 @@ public class DisplayMisoSceneImpl
}
// documentation inherited from interface
public int getObjectCount ()
public void getSceneObjects (Rectangle region, ObjectSet set)
{
return _objects.size();
}
// documentation inherited from interface
public ObjectTile getObjectTile (int index)
{
return ((ObjectInfo)_objects.get(index)).object;
}
// documentation inherited from interface
public Point getObjectCoords (int index)
{
return ((ObjectInfo)_objects.get(index)).coords;
}
// documentation inherited from interface
public String getObjectAction (int index)
{
return ((ObjectInfo)_objects.get(index)).action;
// iterate over all of our objects, creating and including scene
// objects for those that intersect the region
int ocount = _objects.size();
for (int ii = 0; ii < ocount; ii++) {
SceneObject scobj = (SceneObject)_objects.get(ii);
if (region.contains(scobj.x, scobj.y)) {
set.insert(scobj);
} else {
System.err.println("Skipping " + scobj + ", not in " + region + ".");
}
}
}
/**
@@ -233,27 +227,26 @@ public class DisplayMisoSceneImpl
}
/**
* Creates an object info. This allows derived classes to extend the
* object info record.
* Creates a scene object record. This allows derived classes to
* provide extended records.
*/
protected ObjectInfo createObjectInfo ()
protected SceneObject createSceneObject (int x, int y, ObjectTile tile)
{
return new ObjectInfo();
return new SceneObject(x, y, tile);
}
/**
* Locates the object info record for the object tile at the specified
* location. Two of the same kind of object tile cannot exist at the
* same location.
* Locates the scene object record for the object tile at the
* specified location. Two of the same kind of object tile cannot
* exist at the same location.
*/
protected ObjectInfo getObjectInfo (ObjectTile tile, int x, int y)
protected SceneObject getSceneObject (ObjectTile tile, int x, int y)
{
int ocount = _objects.size();
for (int ii = 0; ii < ocount; ii++) {
ObjectInfo info = (ObjectInfo)_objects.get(ii);
if (info.object == tile &&
info.coords.x == x && info.coords.y == y) {
return info;
SceneObject scobj = (SceneObject)_objects.get(ii);
if (scobj.tile == tile && scobj.x == x && scobj.y == y) {
return scobj;
}
}
return null;
@@ -308,7 +301,7 @@ public class DisplayMisoSceneImpl
/** The fringe layer of tiles. */
protected TileLayer _fringe;
/** The object info records. */
/** The scene object records. */
protected ArrayList _objects = new ArrayList();
/** The autofringer. */
@@ -316,13 +309,4 @@ public class DisplayMisoSceneImpl
/** A random number generator for filling random base tiles and fringes. */
protected Random _rando = new Random();
/** Used to report information on objects in this scene. */
protected static class ObjectInfo
{
public ObjectInfo () {}
public ObjectTile object;
public Point coords;
public String action;
}
}