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//
// Nenya library - tools for developing networked games
// Copyright (C) 2002-2012 Three Rings Design, Inc., All Rights Reserved
// https://github.com/threerings/nenya
//
// This library is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation; either version 2.1 of the License, or
// (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package com.threerings.miso.client;
import java.awt.AlphaComposite;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Component;
import java.awt.Composite;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Polygon;
import java.awt.Rectangle;
import java.awt.Stroke;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.image.BufferedImage;
import java.lang.ref.WeakReference;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.WeakHashMap;
import java.util.concurrent.ConcurrentHashMap;
import javax.swing.Icon;
import javax.swing.JFrame;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import com.samskivert.util.StringUtil;
import com.samskivert.swing.Controller;
import com.samskivert.swing.RadialMenu;
import com.samskivert.swing.RuntimeAdjust;
import com.samskivert.swing.event.CommandEvent;
import com.threerings.media.VirtualMediaPanel;
import com.threerings.media.sprite.Sprite;
import com.threerings.media.tile.ObjectTile;
import com.threerings.media.tile.Tile;
import com.threerings.media.tile.TileManager;
import com.threerings.media.tile.TileSet;
import com.threerings.media.util.AStarPathUtil;
import com.threerings.media.util.MathUtil;
import com.threerings.media.util.Path;
import com.threerings.miso.MisoPrefs;
import com.threerings.miso.client.DirtyItemList.DirtyItem;
import com.threerings.miso.data.MisoSceneModel;
import com.threerings.miso.data.ObjectInfo;
import com.threerings.miso.tile.BaseTile;
import com.threerings.miso.tile.AutoFringer.FringeTile;
import com.threerings.miso.util.MisoContext;
import com.threerings.miso.util.MisoSceneMetrics;
import com.threerings.miso.util.MisoUtil;
import static com.threerings.miso.Log.log;
/**
* Renders a Miso scene for all to see.
*/
public class MisoScenePanel extends VirtualMediaPanel
implements MouseListener, MouseMotionListener, AStarPathUtil.TraversalPred, RadialMenu.Host
{
/** Show flag that indicates we should show all tips. */
public static final int SHOW_TIPS = (1 << 0);
/**
* Creates a blank miso scene display. Configure it with a scene model via
* {@link #setSceneModel} to cause it to display something.
*/
public MisoScenePanel (MisoContext ctx, MisoSceneMetrics metrics)
{
super(ctx.getFrameManager());
_ctx = ctx;
_metrics = metrics;
_rethinkOp = new RethinkOp(_metrics);
_applicator = new TileOpApplicator(_metrics);
// set ourselves up
setOpaque(true);
addMouseListener(this);
addMouseMotionListener(this);
// create the resolver if it's not already around
_resolver = _resolvers.get(_ctx);
if (_resolver == null) {
_resolver = new SceneBlockResolver();
_resolver.setDaemon(true);
_resolver.setPriority(Thread.MIN_PRIORITY);
_resolver.start();
_resolvers.put(_ctx, _resolver);
}
}
/**
* Configures this display with a scene model which will immediately be resolved and
* displayed.
*/
public void setSceneModel (MisoSceneModel model)
{
_model = model;
// clear out old blocks and objects
clearScene();
centerOnTile(0, 0);
if (isShowing()) {
rethink();
_remgr.invalidateRegion(_vbounds);
}
}
/**
* Clears out our old scene business.
*/
protected void clearScene ()
{
_blocks.clear();
_vizobjs.clear();
_fringes.clear();
_masks.clear();
if (_dpanel != null) {
_dpanel.newScene();
}
}
/**
* Completely invalidates our current resolved scene and re-resolves it from the ground up.
*/
public void refreshScene ()
{
clearScene();
// Don't repaint immediately if we've gotten new penders from our rethink
_delayRepaint = rethink() > 0;
_remgr.invalidateRegion(_vbounds);
}
/**
* Moves the scene such that the specified tile is in the center.
*/
public void centerOnTile (int tx, int ty)
{
Rectangle trect = MisoUtil.getTilePolygon(_metrics, tx, ty).getBounds();
int nx = trect.x + trect.width/2 - _vbounds.width/2;
int ny = trect.y + trect.height/2 - _vbounds.height/2;
// Log.info("Centering on t:" + StringUtil.coordsToString(tx, ty) +
// " b:" + StringUtil.toString(trect) +
// " vb: " + StringUtil.toString(_vbounds) +
// ", n:" + StringUtil.coordsToString(nx, ny) + ".");
setViewLocation(nx, ny);
}
/**
* Returns the scene model being displayed by this panel. Do
* not modify!
*/
public MisoSceneModel getSceneModel ()
{
return _model;
}
/**
* Returns the scene metrics in use by this panel. Do not modify!
*/
public MisoSceneMetrics getSceneMetrics ()
{
return _metrics;
}
/**
* Set whether or not to highlight object tooltips (and potentially other scene entities).
*/
public void setShowFlags (int flags, boolean on)
{
int oldshow = _showFlags;
if (on) {
_showFlags |= flags;
} else {
_showFlags &= ~flags;
}
if (oldshow != _showFlags) {
showFlagsDidChange(oldshow);
}
}
/**
* Check to see if the specified show flag is on.
*/
public boolean checkShowFlag (int flag)
{
return (0 != (flag & _showFlags));
}
/**
* Called when our show flags have changed.
*/
protected void showFlagsDidChange (int oldflags)
{
if ((oldflags & SHOW_TIPS) != (_showFlags & SHOW_TIPS)) {
for (SceneObjectIndicator indic : _indicators.values()) {
dirtyIndicator(indic);
}
}
}
/**
* Returns the top-most object over which the mouse is hovering; this may be a sprite or a
* {@link SceneObject}.
*/
public Object getHoverObject ()
{
return _hobject;
}
/**
* Returns the tile coordinates of the tile over which the mouse is hovering.
*/
public Point getHoverCoords ()
{
return _hcoords;
}
/**
* Returns an iterator over all resolved {@link SceneBlock} instances.
*/
public Iterator enumerateResolvedBlocks ()
{
return _blocks.values().iterator();
}
/**
* Returns the resolved block that contains the specified tile coordinate or null if no block
* is resolved for that coordinate.
*/
public SceneBlock getBlock (int tx, int ty)
{
int bx = MathUtil.floorDiv(tx, _metrics.blockwid);
int by = MathUtil.floorDiv(ty, _metrics.blockhei);
return _blocks.get(compose(bx, by));
}
/**
* Computes a path for the specified sprite to the specified tile coordinates.
*
* @param loose if true, an approximate path will be returned if a complete path cannot be
* located. This path will navigate the sprite "legally" as far as possible and then walk the
* sprite in a straight line to its final destination. This is generally only useful if the
* the path goes "off screen".
*/
public Path getPath (Sprite sprite, int x, int y, boolean loose)
{
// sanity check
if (sprite == null) {
throw new IllegalArgumentException(
"Can't get path for null sprite [x=" + x + ", y=" + y + ".");
}
// get the destination tile coordinates
Point src = MisoUtil.screenToTile(
_metrics, sprite.getX(), sprite.getY(), new Point());
Point dest = MisoUtil.screenToTile(_metrics, x, y, new Point());
// compute our longest path from the screen size
int longestPath = 3 * (getWidth() / _metrics.tilewid);
// get a reasonable tile path through the scene
long start = System.currentTimeMillis();
List points = AStarPathUtil.getPath(
this, sprite, longestPath, src.x, src.y, dest.x, dest.y, loose);
long duration = System.currentTimeMillis() - start;
// sanity check the number of nodes searched so that we can keep an eye out for bogosity
if (duration > 500L) {
int considered = AStarPathUtil.getConsidered();
log.warning("Considered " + considered + " nodes for path from " +
StringUtil.toString(src) + " to " +
StringUtil.toString(dest) +
" [duration=" + duration + "].");
}
// construct a path object to guide the sprite on its merry way
return (points == null) ? null :
new TilePath(_metrics, sprite, points, x, y);
}
/**
* Converts the supplied full coordinates to screen coordinates.
*/
public Point getScreenCoords (int x, int y)
{
return MisoUtil.fullToScreen(_metrics, x, y, new Point());
}
/**
* Converts the supplied screen coordinates to full coordinates.
*/
public Point getFullCoords (int x, int y)
{
return MisoUtil.screenToFull(_metrics, x, y, new Point());
}
/**
* Converts the supplied screen coordinates to tile coordinates.
*/
public Point getTileCoords (int x, int y)
{
return MisoUtil.screenToTile(_metrics, x, y, new Point());
}
/**
* Clears any radial menu being displayed.
*/
public void clearRadialMenu ()
{
if (_activeMenu != null) {
_activeMenu.deactivate();
}
}
/**
* Reports the memory usage of the resolved tiles in the current scene block.
*/
public void reportMemoryUsage ()
{
Map base = Maps.newHashMap();
Set fringe = Sets.newHashSet();
Map object = Maps.newHashMap();
long[] usage = new long[3];
for (SceneBlock block : _blocks.values()) {
block.computeMemoryUsage(base, fringe, object, usage);
}
log.info("Scene tile memory usage",
"scene", StringUtil.shortClassName(this),
"base", base.size() + "->" + (usage[0] / 1024) + "k",
"fringe", fringe.size() + "->" + (usage[1] / 1024) + "k",
"obj", object.size() + "->" + (usage[2] / 1024) + "k");
}
@Override
public void addNotify ()
{
super.addNotify();
if (_resolveDebug.getValue()) {
_dpanel = new ResolutionView(this);
_dframe = new JFrame("Scene block resolver");
_dframe.setContentPane(_dpanel);
_dframe.pack();
_dframe.setVisible(true);
}
}
@Override
public void removeNotify ()
{
super.removeNotify();
if (_dpanel != null) {
_dframe.dispose();
_dpanel = null;
_dframe = null;
}
}
// documentation inherited from interface
public void mouseClicked (MouseEvent e)
{
// nothing doing
}
// documentation inherited from interface
public void mousePressed (MouseEvent e)
{
// ignore mouse presses if we're not responsive
if (!isResponsive()) {
return;
}
if (e.getButton() == MouseEvent.BUTTON1) {
if (_hobject instanceof Sprite) {
handleSpritePressed((Sprite)_hobject, e.getX(), e.getY());
return;
} else if (_hobject instanceof SceneObject) {
handleObjectPressed((SceneObject)_hobject, e.getX(), e.getY());
return;
}
}
// if not button1, or _hobject not Sprite or SceneObject...
handleMousePressed(_hobject, e);
}
/**
* Programmatically "click" a scene object. This results in a call to
* {@link #handleObjectPressed} with click coordinates in the center of the object.
*/
public void pressObject (SceneObject scobj)
{
int px = scobj.bounds.x + scobj.bounds.width/2;
int py = scobj.bounds.y + scobj.bounds.height/2;
handleObjectPressed(scobj, px, py);
}
/**
* Called when the user presses the mouse button over a sprite.
*/
protected void handleSpritePressed (Sprite sprite, int mx, int my)
{
}
/**
* Called when the user presses the mouse button over an object.
*/
protected void handleObjectPressed (final SceneObject scobj, int mx, int my)
{
String action = scobj.info.action;
final ObjectActionHandler handler = ObjectActionHandler.lookup(action);
// if there's no handler, just fire the action immediately
if (handler == null) {
fireObjectAction(null, scobj, new SceneObjectActionEvent(
this, 0, action, 0, scobj));
return;
}
// if the action's not allowed, pretend like we handled it
if (!handler.actionAllowed(action)) {
return;
}
// if there's no menu for this object, fire the action immediately
RadialMenu menu = handler.handlePressed(scobj);
if (menu == null) {
fireObjectAction(handler, scobj, new SceneObjectActionEvent(
this, 0, action, 0, scobj));
return;
}
// make the menu surround the clicked object, but with consistent size
Rectangle mbounds = getRadialMenuBounds(scobj);
_activeMenu = menu;
_activeMenu.addActionListener(new ActionListener() {
public void actionPerformed (ActionEvent e) {
if (e instanceof CommandEvent) {
fireObjectAction(handler, scobj, e);
} else {
SceneObjectActionEvent event = new SceneObjectActionEvent(
e.getSource(), e.getID(), e.getActionCommand(),
e.getModifiers(), scobj);
fireObjectAction(handler, scobj, event);
}
}
});
_activeMenu.activate(this, mbounds, scobj);
}
/**
* Returns an appropriate set of menu bounds for the specified object. Returns a rectangle of
* the size specified by {@link #getObjectRadialSize} centered around the object.
*/
protected Rectangle getRadialMenuBounds (SceneObject scobj)
{
Rectangle mbounds = new Rectangle(scobj.bounds);
Dimension radbox = getObjectRadialSize();
if (mbounds.width != radbox.width) {
mbounds.x += (mbounds.width-radbox.width)/2;
mbounds.width = radbox.width;
}
if (mbounds.height != radbox.height) {
mbounds.y += (mbounds.height-radbox.height)/2;
mbounds.height = radbox.height;
}
return mbounds;
}
/**
* Returns the size of the rectangle around which we create an object's radial menu. The
* default is a sensible size, but derived classes may wish to tune the value to make their
* menus lay out in a more aestetically pleasing manner.
*/
protected Dimension getObjectRadialSize ()
{
return DEF_RADIAL_RECT;
}
/**
* Called when an object or object menu item has been clicked.
*/
protected void fireObjectAction (
ObjectActionHandler handler, SceneObject scobj, ActionEvent event)
{
if (handler == null) {
Controller.postAction(event);
} else {
handler.handleAction(scobj, event);
}
}
/**
* Called when the mouse is pressed over an unknown or non-existent hover object.
*
* @param hobject the hover object at the time of the mouse press or null if no hover object
* is active.
*
* @return true if the mouse press was handled, false if not.
*/
protected boolean handleMousePressed (Object hobject, MouseEvent event)
{
return false;
}
// documentation inherited from interface
public void mouseReleased (MouseEvent e)
{
// nothing doing; everything is handled on pressed
}
// documentation inherited from interface
public void mouseEntered (MouseEvent e)
{
// nothing doing
}
// documentation inherited from interface
public void mouseExited (MouseEvent e)
{
// clear the highlight tracking data
_hcoords.setLocation(-1, -1);
changeHoverObject(null);
_remgr.invalidateRegion(_vbounds);
}
// documentation inherited from interface
public void mouseDragged (MouseEvent e)
{
// nothing doing
}
// documentation inherited from interface
public void mouseMoved (MouseEvent e)
{
int x = e.getX(), y = e.getY();
// update the mouse's tile coordinates
updateTileCoords(x, y, _hcoords);
// stop now if we're not responsive
if (!isResponsive()) {
return;
}
// give derived classes a chance to start with a hover object
Object hobject = computeOverHover(x, y);
// if they came up with nothing, compute the list of objects over
// which the mouse is hovering
if (hobject == null) {
// start with the sprites that contain the point
_spritemgr.getHitSprites(_hitSprites, x, y);
int hslen = _hitSprites.size();
for (int ii = 0; ii < hslen; ii++) {
Sprite sprite = _hitSprites.get(ii);
appendDirtySprite(_hitList, sprite);
}
// add the object tiles that contain the point
getHitObjects(_hitList, x, y);
// sort the list of hit items by rendering order
_hitList.sort();
// the last element in the array is what we want (assuming
// there are any items in the array)
int icount = _hitList.size();
if (icount > 0) {
DirtyItem item = _hitList.get(icount-1);
hobject = item.obj;
}
// clear out the hitlists
_hitList.clear();
_hitSprites.clear();
}
// if the user isn't hovering over a sprite or object with an
// action, allow derived classes to provide some other hover
if (hobject == null) {
hobject = computeUnderHover(x, y);
}
changeHoverObject(hobject);
}
/**
* Gives derived classes a chance to compute a hover object that takes precedence over sprites
* and actionable objects. If this method returns non-null, no sprite or object hover
* calculations will be performed and the object returned will become the new hover object.
*/
protected Object computeOverHover (int mx, int my)
{
return null;
}
/**
* Gives derived classes a chance to compute a hover object that is used if the mouse is not
* hovering over a sprite or actionable object. If this method is called, it means that there
* are no sprites or objects under the mouse. Thus if it returns non-null, the object returned
* will become the new hover object.
*/
protected Object computeUnderHover (int mx, int my)
{
return null;
}
// documentation inherited
public boolean canTraverse (Object traverser, int tx, int ty)
{
SceneBlock block = getBlock(tx, ty);
return (block == null) ? canTraverseUnresolved(traverser, tx, ty) :
block.canTraverse(traverser, tx, ty);
}
/**
* Derived classes can control whether or not we consider unresolved tiles to be traversable
* or not.
*/
protected boolean canTraverseUnresolved (Object traverser, int tx, int ty)
{
return false;
}
@Override
public Rectangle getViewBounds ()
{
return _vbounds;
}
@Override
public Component getComponent ()
{
return this;
}
// documentation inherited from interface
public void repaintRect (int x, int y, int width, int height)
{
// translate back into view coordinates
x -= _vbounds.x;
y -= _vbounds.y;
repaint(x, y, width, height);
}
// documentation inherited from interface
public void menuDeactivated (RadialMenu menu)
{
_activeMenu = null;
}
@Override
public void setBounds (int x, int y, int width, int height)
{
super.setBounds(x, y, width, height);
// if we change size...
if (width != _rsize.width || height != _rsize.height) {
// ...adjust our view location to preserve the center of the
// screen...
int dx = (_rsize.width-width)/2, dy = (_rsize.height-height)/2;
// Log.info("Adjusting offset " +
// "rsize:" + StringUtil.toString(_rsize) +
// " nsize:" + width + "x" + height +
// " vb:" + StringUtil.toString(_vbounds) +
// " d:" + StringUtil.coordsToString(dx, dy) + ".");
setViewLocation(_nx+dx, _ny+dy);
_rsize.setSize(width, height);
// ...and force a rethink on the next tick
_ulpos = null;
}
}
@Override
protected void viewLocationDidChange (int dx, int dy)
{
super.viewLocationDidChange(dx, dy);
// compute the tile coordinates of our upper left screen coordinate and request a rethink
// if they've changed
MisoUtil.screenToTile(_metrics, _vbounds.x, _vbounds.y, _tcoords);
if (_ulpos == null || !_tcoords.equals(_ulpos)) {
// if this is a forced rethink (_ulpos is null), we might delay paint as a result of
// it, but only if we queue up blocks for resolution in our rethink
boolean mightDelayPaint = false;
if (_ulpos == null) {
_ulpos = new Point();
mightDelayPaint = true;
}
_ulpos.setLocation(_tcoords);
if (rethink() > 0) {
_delayRepaint = mightDelayPaint;
// If this is a complete repaint, turn off visibility while we're resolving to
// keep child components or media panels from drawing.
if (_delayRepaint) {
setVisible(false);
}
log.info("Got new pending blocks",
"need", _visiBlocks.size(), "of", _pendingBlocks,
"view", StringUtil.toString(_vbounds), "delay", _delayRepaint);
}
}
}
/**
* Derived classes can override this method and provide a colorizer that will be used to
* colorize the supplied scene object when rendering.
*/
protected TileSet.Colorizer getColorizer (ObjectInfo oinfo)
{
return null;
}
/**
* Computes the tile coordinates of the supplied sprite and appends it to the supplied dirty
* item list.
*/
protected void appendDirtySprite (DirtyItemList list, Sprite sprite)
{
MisoUtil.screenToTile(_metrics, sprite.getX(), sprite.getY(), _tcoords);
list.appendDirtySprite(sprite, _tcoords.x, _tcoords.y);
}
/**
* Returns the tile manager from which we load our tiles.
*/
protected TileManager getTileManager ()
{
return _ctx.getTileManager();
}
/**
* This is called when our view position has changed by more than one tile in any direction.
* Herein we do a whole crapload of stuff:
*
*
* - Queue up loads for any new influential blocks.
* - Flush any blocks that are no longer influential.
* - Recompute the list of potentially visible scene objects.
*
*
* @return the count of blocks pending after this rethink.
*/
protected int rethink ()
{
// recompute our "area of influence"
computeInfluentialBounds();
// Log.info("Rethinking vb:" + StringUtil.toString(_vbounds) +
// " ul:" + StringUtil.toString(_ulpos) +
// " ibounds: " + StringUtil.toString(_ibounds));
// not to worry if we presently have no scene model
if (_model == null) {
return 0;
}
// compute the intersecting set of blocks
_applicator.applyToTiles(_ibounds, _rethinkOp);
// Log.info("Influential blocks " +
// StringUtil.toString(_rethinkOp.blocks) + ".");
// prune any blocks that are no longer influential
Point key = new Point();
for (Iterator iter = _blocks.values().iterator(); iter.hasNext(); ) {
SceneBlock block = iter.next();
key.x = block.getBounds().x;
key.y = block.getBounds().y;
if (!_rethinkOp.blocks.contains(key)) {
log.debug("Flushing block " + block + ".");
if (_dpanel != null) {
_dpanel.blockCleared(block);
}
iter.remove();
}
}
for (Point origin : _rethinkOp.blocks) {
int bx = MathUtil.floorDiv(origin.x, _metrics.blockwid);
int by = MathUtil.floorDiv(origin.y, _metrics.blockhei);
int bkey = compose(bx, by);
if (!_blocks.containsKey(bkey)) {
SceneBlock block = new SceneBlock(
this, origin.x, origin.y, _metrics.blockwid, _metrics.blockhei);
boolean visible = block.getFootprint().getBounds().intersects(_vibounds);
block.setVisiBlock(visible);
_blocks.put(bkey, block);
// queue the block up to be resolved
_pendingBlocks++;
if (visible) {
_visiBlocks.add(block);
}
_resolver.resolveBlock(block, visible);
if (_dpanel != null) {
_dpanel.queuedBlock(block);
}
}
}
_rethinkOp.blocks.clear();
// recompute our visible object set
recomputeVisible();
log.debug("Rethunk [pending=" + _pendingBlocks + ", visible=" + _visiBlocks.size() + "].");
return _visiBlocks.size();
}
/**
* Calls through to {@link #computeInfluentialBounds(Rectangle, Rectangle, Rectangle)} with
* _vbounds, _ibounds and _vibounds.
*/
protected void computeInfluentialBounds ()
{
computeInfluentialBounds(_vbounds, _ibounds, _vibounds);
}
/**
* Configures influentialBounds to contain the bounds of the potentially
* "influential" world and visibleBlockBounds to contain bounds that are used
* to determine which blocks should be resolved before making the view visible.
*
* Everything that intersects the influential area will be resolved on the expectation
* that it could be scrolled into view at any time. The influential bounds should be large
* enough that the time between a block becoming influential and the time at which it is
* resolved is longer than the expected time by which it will be scrolled into view, otherwise
* the users will see the man behind the curtain.
*/
public static void computeInfluentialBounds (Rectangle visibleBounds,
Rectangle influentualBounds, Rectangle visibleBlockBounds)
{
int infborx = 3 * visibleBounds.width / 4;
int infbory = visibleBounds.height / 2;
// we go extra on the height because objects below can influence fairly high up
influentualBounds.setBounds(visibleBounds.x - infborx, visibleBounds.y - infbory,
visibleBounds.width + 2 * infborx, visibleBounds.height + 3 * infbory);
visibleBlockBounds.setBounds(visibleBounds.x - visibleBounds.width / 4,
visibleBounds.y, visibleBounds.width + visibleBounds.width / 2,
visibleBounds.height + infbory);
}
/**
* Returns the bounds for which all intersecting scene blocks are kept resolved. Do not modify
* the rectangle returned by this method.
*/
protected Rectangle getInfluentialBounds ()
{
return _ibounds;
}
/**
* Called by the scene block when it has started its resolution.
*/
protected void blockResolving (SceneBlock block)
{
if (_dpanel != null) {
_dpanel.resolvingBlock(block);
}
}
/**
* Called by the scene block if it has come up for resolution but is no longer influential.
*/
protected void blockAbandoned (SceneBlock block)
{
if (_dpanel != null) {
_dpanel.blockCleared(block);
}
blockFinished(block);
}
/**
* Called by a scene block when it has completed its resolution process.
*/
protected void blockResolved (SceneBlock block)
{
if (_dpanel != null) {
_dpanel.resolvedBlock(block);
}
Rectangle sbounds = block.getScreenBounds();
if (!_delayRepaint && sbounds != null && sbounds.intersects(_vbounds)) {
// warnVisible(block, sbounds);
// if we have yet further blocks to resolve, queue up a repaint now so that we get these
// data onscreen as quickly as possible
if (_pendingBlocks > 1) {
recomputeVisible();
_remgr.invalidateRegion(sbounds);
}
}
blockFinished(block);
}
/**
* Called whenever a block is done resolving, whether it was successfully resolved or if it
* was abandoned.
*/
protected void blockFinished (SceneBlock block)
{
--_pendingBlocks;
// once all the visible pending blocks have completed their
// resolution, recompute our visible object set and show ourselves
if (_visiBlocks.remove(block) && _visiBlocks.size() == 0) {
allBlocksFinished();
}
}
/**
* Called to handle the proceedings once our last resolving block has been finished.
*/
protected void allBlocksFinished ()
{
recomputeVisible();
log.info("Restoring repaint... ", "left", _pendingBlocks, "view",
StringUtil.toString(_vbounds));
_delayRepaint = false;
// Need to restore visibility as it may have been turned of as a result of the delay
setVisible(true);
_remgr.invalidateRegion(_vbounds);
}
/**
* Issues a warning to the error log that the specified block became visible prior to being
* resolved. Derived classes may wish to augment or inhibit this warning.
*/
protected void warnVisible (SceneBlock block, Rectangle sbounds)
{
log.warning("Block visible during resolution " + block +
" sbounds:" + StringUtil.toString(sbounds) +
" vbounds:" + StringUtil.toString(_vbounds) + ".");
}
/**
* Recomputes our set of visible objects and their indicators.
*/
protected void recomputeVisible ()
{
// flush our visible object set which we'll recreate later
_vizobjs.clear();
Rectangle vbounds = new Rectangle(
_vbounds.x-_metrics.tilewid, _vbounds.y-_metrics.tilehei,
_vbounds.width+2*_metrics.tilewid,
_vbounds.height+2*_metrics.tilehei);
for (SceneBlock block : _blocks.values()) {
if (!block.isResolved()) {
continue;
}
// links this block to its neighbors; computes coverage
block.update(_blocks);
// see which of this block's objects are visible
SceneObject[] objs = block.getObjects();
for (SceneObject obj : objs) {
if (obj.bounds != null &&
vbounds.intersects(obj.bounds)) {
_vizobjs.add(obj);
}
}
}
// recompute our object indicators
computeIndicators();
// Log.info("Computed " + _vizobjs.size() + " visible objects from " +
// _blocks.size() + " blocks.");
// Log.info(StringUtil.listToString(_vizobjs, new StringUtil.Formatter() {
// public String toString (Object object) {
// SceneObject scobj = (SceneObject)object;
// return (TileUtil.getTileSetId(scobj.info.tileId) + ":" +
// TileUtil.getTileIndex(scobj.info.tileId));
// }
// }));
}
/**
* Masks off the lower 16 bits of the supplied integers and composes
* them into a single int.
*/
protected static int compose (int x, int y)
{
return (x << 16) | (y & 0xFFFF);
}
/**
* Compute the indicators for any objects in the scene.
*/
public void computeIndicators ()
{
Map _unupdated = Maps.newHashMap(_indicators);
for (int ii = 0, nn = _vizobjs.size(); ii < nn; ii++) {
SceneObject scobj = _vizobjs.get(ii);
String action = scobj.info.action;
// if the object has no action, skip it
if (StringUtil.isBlank(action)) {
continue;
}
// if we have an object action handler, possibly let them veto
// the display of this tooltip and action
ObjectActionHandler oah = ObjectActionHandler.lookup(action);
if (oah != null && !oah.isVisible(action)) {
continue;
}
String tiptext = getTipText(scobj, action);
if (tiptext != null) {
Icon icon = getTipIcon(scobj, action);
SceneObjectIndicator indic = _unupdated.remove(scobj);
if (indic == null) {
// let the object action handler create the indicator if it exists, otherwise
// just use a regular tip
if (oah != null) {
indic = oah.createIndicator(this, tiptext, icon);
} else {
indic = new SceneObjectTip(tiptext, icon);
}
_indicators.put(scobj, indic);
} else {
indic.update(icon, tiptext);
}
dirtyIndicator(indic);
}
}
// clear out any no longer used indicators
for (SceneObject toremove : _unupdated.keySet()) {
SceneObjectIndicator indic = _indicators.remove(toremove);
indic.removed();
dirtyIndicator(indic);
}
_indicatorsLaidOut = false;
}
/**
* Derived classes can provide human readable object tips via this method.
*/
protected String getTipText (SceneObject scobj, String action)
{
ObjectActionHandler oah = ObjectActionHandler.lookup(action);
return (oah == null) ? action : oah.getTipText(action);
}
/**
* Provides an icon for this tooltip, the default looks up an object action handler for the
* action and requests the icon from it.
*/
protected Icon getTipIcon (SceneObject scobj, String action)
{
ObjectActionHandler oah = ObjectActionHandler.lookup(action);
return (oah == null) ? null : oah.getTipIcon(action);
}
/**
* Dirties the specified indicator.
*/
protected void dirtyIndicator (SceneObjectIndicator indic)
{
if (indic != null) {
Rectangle r = indic.getBounds();
if (r != null) {
_remgr.invalidateRegion(r);
}
}
}
/**
* Change the hover object to the new object.
*/
protected void changeHoverObject (Object newHover)
{
if (newHover == _hobject) {
return;
}
Object oldHover = _hobject;
_hobject = newHover;
hoverObjectChanged(oldHover, newHover);
}
/**
* A place for subclasses to react to the hover object changing.
* One of the supplied arguments may be null.
*/
protected void hoverObjectChanged (Object oldHover, Object newHover)
{
// deal with objects that care about being hovered over
if (oldHover instanceof SceneObject) {
SceneObject oldhov = (SceneObject)oldHover;
if (oldhov.setHovered(false)) {
_remgr.invalidateRegion(oldhov.bounds);
}
}
if (newHover instanceof SceneObject) {
SceneObject newhov = (SceneObject)newHover;
if (newhov.setHovered(true)) {
_remgr.invalidateRegion(newhov.bounds);
}
}
// dirty the indicators associated with the hover objects
dirtyIndicator(_indicators.get(oldHover));
dirtyIndicator(_indicators.get(newHover));
}
/**
* Adds to the supplied dirty item list, all of the object tiles that are hit by the specified
* point (meaning the point is contained within their bounds and intersects a non-transparent
* pixel in the actual object image.
*/
protected void getHitObjects (DirtyItemList list, int x, int y)
{
for (SceneObject scobj : _vizobjs) {
Rectangle pbounds = scobj.bounds;
if (!pbounds.contains(x, y)) {
continue;
}
// see if we should skip it
if (skipHitObject(scobj)) {
continue;
}
// now check that the pixel in the tile image is non-transparent at that point
if (!scobj.tile.hitTest(x - pbounds.x, y - pbounds.y)) {
continue;
}
// we've passed the test, add the object to the list
list.appendDirtyObject(scobj);
}
}
/**
* Determines whether we should skip the specified object when compiling the list of objects
* under a specified point using {@link #getHitObjects}. The default implementation returns
* true if the object has no action.
*/
protected boolean skipHitObject (SceneObject scobj)
{
return StringUtil.isBlank(scobj.info.action);
}
/**
* Converts the supplied screen coordinates into tile coordinates, writing the values into the
* supplied {@link Point} instance and returning true if the screen coordinates translated
* into a different set of tile coordinates than were already contained in the point (so that
* the caller can know to update a highlight, for example).
*
* @return true if the tile coordinates have changed.
*/
protected boolean updateTileCoords (int sx, int sy, Point tpos)
{
Point npos = MisoUtil.screenToTile(_metrics, sx, sy, new Point());
if (!tpos.equals(npos)) {
tpos.setLocation(npos.x, npos.y);
return true;
} else {
return false;
}
}
@Override
public void paint (Graphics g)
{
if (_delayRepaint) {
return;
}
super.paint(g);
}
@Override
protected void paintInFront (Graphics2D gfx, Rectangle dirty)
{
super.paintInFront(gfx, dirty);
// paint any active menu (this should in theory check to see if
// the active menu intersects one or more of the dirty rects)
if (_activeMenu != null) {
_activeMenu.render(gfx);
}
}
@Override
protected void paintBetween (Graphics2D gfx, Rectangle dirty)
{
// render any intersecting tiles
paintTiles(gfx, dirty);
// render anything that goes on top of the tiles
paintBaseDecorations(gfx, dirty);
// render our dirty sprites and objects
paintDirtyItems(gfx, dirty);
// draw sprite paths
if (_pathsDebug.getValue()) {
_spritemgr.renderSpritePaths(gfx);
}
// paint any extra goodies
paintExtras(gfx, dirty);
}
/**
* We don't want sprites rendered using the standard mechanism because we intersperse them
* with objects in our scene and need to manage their z-order.
*/
@Override
protected void paintBits (Graphics2D gfx, int layer, Rectangle dirty)
{
_animmgr.paint(gfx, layer, dirty);
}
/**
* A function where derived classes can paint things after the base tiles have been rendered
* but before anything else has been rendered (so that whatever is painted appears to be on
* the ground).
*/
protected void paintBaseDecorations (Graphics2D gfx, Rectangle clip)
{
// nothing for now
}
/**
* Renders the dirty sprites and objects in the scene to the given graphics context.
*/
protected void paintDirtyItems (Graphics2D gfx, Rectangle clip)
{
// add any sprites impacted by the dirty rectangle
_dirtySprites.clear();
_spritemgr.getIntersectingSprites(_dirtySprites, clip);
int size = _dirtySprites.size();
for (int ii = 0; ii < size; ii++) {
Sprite sprite = _dirtySprites.get(ii);
Rectangle bounds = sprite.getBounds();
if (!bounds.intersects(clip)) {
continue;
}
appendDirtySprite(_dirtyItems, sprite);
// Log.info("Dirtied item: " + sprite);
}
// add any objects impacted by the dirty rectangle
for (SceneObject scobj : _vizobjs) {
if (!scobj.bounds.intersects(clip)) {
continue;
}
_dirtyItems.appendDirtyObject(scobj);
// Log.info("Dirtied item: " + scobj);
}
// Log.info("paintDirtyItems [items=" + _dirtyItems.size() + "].");
// sort the dirty items so that we can paint them back-to-front
_dirtyItems.sort();
_dirtyItems.paintAndClear(gfx);
}
/**
* A function where derived classes can paint extra stuff while we've
* got the clipping region set up.
*/
protected void paintExtras (Graphics2D gfx, Rectangle clip)
{
if (isResponsive()) {
paintIndicators(gfx, clip);
}
}
/**
* Paint all the appropriate indicators for our scene objects.
*/
protected void paintIndicators (Graphics2D gfx, Rectangle clip)
{
// make sure the indicators are ready
if (!_indicatorsLaidOut) {
for (Map.Entry entry : _indicators.entrySet()) {
SceneObjectIndicator indic = entry.getValue();
if (!indic.isLaidOut()) {
indic.layout(gfx, entry.getKey(), _vbounds);
dirtyIndicator(indic);
}
}
_indicatorsLaidOut = true;
}
if (checkShowFlag(SHOW_TIPS)) {
// show all the indicators
for (SceneObjectIndicator indic : _indicators.values()) {
paintIndicator(gfx, clip, indic);
}
} else {
// show maybe one indicator
SceneObjectIndicator indic = _indicators.get(_hobject);
if (indic != null) {
paintIndicator(gfx, clip, indic);
}
}
}
/**
* Paint the specified indicator if it intersects the clipping rectangle.
*/
protected void paintIndicator (Graphics2D gfx, Rectangle clip, SceneObjectIndicator tip)
{
if (clip.intersects(tip.getBounds())) {
tip.paint(gfx);
}
}
/**
* Renders the base and fringe layer tiles that intersect the
* specified clipping rectangle.
*/
protected void paintTiles (Graphics2D gfx, Rectangle clip)
{
// go through rendering our tiles
_paintOp.setGraphics(gfx);
_applicator.applyToTiles(clip, _paintOp);
_paintOp.setGraphics(null);
}
/**
* Fills the specified tile with the given color at 50% alpha.
* Intended for debug-only tile highlighting purposes.
*/
protected void fillTile (
Graphics2D gfx, int tx, int ty, Color color)
{
Composite ocomp = gfx.getComposite();
gfx.setComposite(ALPHA_FILL_TILE);
Polygon poly = MisoUtil.getTilePolygon(_metrics, tx, ty);
gfx.setColor(color);
gfx.fill(poly);
gfx.setComposite(ocomp);
}
/** Returns the base tile for the specified tile coordinate. */
protected BaseTile getBaseTile (int tx, int ty)
{
SceneBlock block = getBlock(tx, ty);
return (block == null) ? null : block.getBaseTile(tx, ty);
}
/** Returns the fringe tile for the specified tile coordinate. */
protected BaseTile getFringeTile (int tx, int ty)
{
SceneBlock block = getBlock(tx, ty);
return (block == null) ? null : block.getFringeTile(tx, ty);
}
/** Computes the fringe tile for the specified coordinate. */
protected BaseTile computeFringeTile (int tx, int ty)
{
return _ctx.getTileManager().getAutoFringer().getFringeTile(_model, tx, ty, _fringes,
_masks);
}
/**
* Returns true if we're responding to user input. This is used to control the display of
* tooltips and other potential user interactions. By default we are always responsive.
*/
protected boolean isResponsive ()
{
return true;
}
/** Used by {@link MisoScenePanel#paintTiles}. */
protected class PaintTileOp implements TileOp
{
public void setGraphics (Graphics2D gfx) {
_gfx = gfx;
_thw = 0;
_thh = 0;
_fhei = 0;
_fm = null;
// if we're showing coordinates, we need to do some setting up
if (gfx != null && _coordsDebug.getValue()) {
_fm = gfx.getFontMetrics(_font);
_fhei = _fm.getAscent();
_thw = _metrics.tilehwid;
_thh = _metrics.tilehhei;
gfx.setFont(_font);
}
}
public void apply (int tx, int ty, Rectangle tbounds) {
// draw the base and fringe tile images
try {
Tile tile;
boolean passable = true;
if ((tile = getBaseTile(tx, ty)) != null) {
tile.paint(_gfx, tbounds.x, tbounds.y);
passable = ((BaseTile)tile).isPassable();
} else {
// draw black where there are no tiles
Polygon poly = MisoUtil.getTilePolygon(_metrics, tx, ty);
_gfx.setColor(Color.black);
_gfx.fill(poly);
}
if ((tile = getFringeTile(tx, ty)) != null) {
tile.paint(_gfx, tbounds.x, tbounds.y);
passable = passable && ((BaseTile)tile).isPassable();
}
// highlight impassable tiles
if (_traverseDebug.getValue()) {
if (!passable) {
// highlight tiles blocked by base or fringe in yellow
fillTile(_gfx, tx, ty, Color.yellow);
} else if (!canTraverse(null, tx, ty)) {
// highlight passable non-traversable tiles in green
fillTile(_gfx, tx, ty, Color.green);
}
}
} catch (ArrayIndexOutOfBoundsException e) {
log.warning("Whoops, booched it", "tx", tx, "ty", ty, "tb.x", tbounds.x);
e.printStackTrace(System.err);
}
// if we're showing coordinates, do that
if (_coordsDebug.getValue()) {
// set the color according to the scene block
int bx = MathUtil.floorDiv(tx, _metrics.blockwid);
int by = MathUtil.floorDiv(ty, _metrics.blockhei);
if (((bx % 2) ^ (by % 2)) == 0) {
_gfx.setColor(Color.white);
} else {
_gfx.setColor(Color.yellow);
}
// get the top-left screen coordinates of the tile
int sx = tbounds.x, sy = tbounds.y;
// draw x-coordinate
String str = String.valueOf(tx);
int xpos = sx + _thw - (_fm.stringWidth(str) / 2);
_gfx.drawString(str, xpos, sy + _thh);
// draw y-coordinate
str = String.valueOf(ty);
xpos = sx + _thw - (_fm.stringWidth(str) / 2);
_gfx.drawString(str, xpos, sy + _thh + _fhei);
// draw the tile polygon as well
_gfx.draw(MisoUtil.getTilePolygon(_metrics, tx, ty));
}
}
protected Graphics2D _gfx;
protected FontMetrics _fm;
protected int _thw, _thh, _fhei;
protected Font _font = new Font("Arial", Font.PLAIN, 7);
}
/** Provides access to a few things. */
protected MisoContext _ctx;
/** Contains basic scene metrics like tile width and height. */
protected MisoSceneMetrics _metrics;
/** The scene model to be displayed. */
protected MisoSceneModel _model;
/** Tracks the size at which we were last "rethunk". */
protected Dimension _rsize = new Dimension();
/** Contains the tile coords of our upper-left view coord. */
protected Point _ulpos;
/** Contains the bounds of our "area of influence" in screen coords. */
protected Rectangle _ibounds = new Rectangle();
/** Contains the bounds of our visible "area of influence" in screen coords. */
protected Rectangle _vibounds = new Rectangle();
/** Used by {@link #rethink}. */
protected RethinkOp _rethinkOp;
/** Contains our scene blocks. See {@link #getBlock} for details. */
protected ConcurrentHashMap _blocks =
new ConcurrentHashMap();
/** A count of blocks in the process of being resolved. */
protected int _pendingBlocks;
/** Used to track visible blocks that are waiting to be resolved. */
protected Set _visiBlocks = Sets.newHashSet();
/** Used to avoid repaints while we don't yet have resolved all the
* blocks needed to render the visible view. */
protected boolean _delayRepaint = false;
/** A list of the potentially visible objects in the scene. */
protected List _vizobjs = Lists.newArrayList();
/**
* Map of the masks used to calculate fringes in this scene.
*/
protected Map _masks = Maps.newHashMap();
/**
* Map of active fringe tiles. Scene blocks have hard references to fringe tiles in this map
* for the tiles they're using, so the blocks coming in and out of the influential bounds
* determines which tiles remain in the map. The map is from FringeTile to FringeTile so a
* fully created FringeTile can be extracted from the map using a tile that contains only
* what's needed for hashCode and equals: id and passability.
*/
protected Map> _fringes =
new WeakHashMap>();
/** The dirty sprites and objects that need to be re-painted. */
protected DirtyItemList _dirtyItems = new DirtyItemList();
/** The working sprites list used when calculating dirty regions. */
protected List _dirtySprites = Lists.newArrayList();
/** Used to paint tiles. */
protected PaintTileOp _paintOp = new PaintTileOp();
/** Temporary point used for intermediate calculations. */
protected Point _tcoords = new Point();
/** Used to collect the list of sprites "hit" by a particular mouse
* location. */
protected List _hitSprites = Lists.newArrayList();
/** The list that we use to track and sort the items over which the
* mouse is hovering. */
protected DirtyItemList _hitList = new DirtyItemList();
/** Info on the object that the mouse is currently hovering over. */
protected Object _hobject;
/** The item that the user has clicked on with the mouse. */
protected Object _armedItem = null;
/** The active radial menu (or null). */
protected RadialMenu _activeMenu;
/** Used to track the tile coordinates over which the mouse is hovering. */
protected Point _hcoords = new Point();
/** Our object indicators, indexed by the object that they indicate. */
protected Map _indicators = Maps.newHashMap();
/** Have the indicators been laid out? */
protected boolean _indicatorsLaidOut = false;
/** Flags indicating which features we should show in the scene. */
protected int _showFlags = 0;
/** The scene block resolver for this scene panel's context. */
protected SceneBlockResolver _resolver;
/** Scene block resolvers shared by all scene panels in a context. */
protected static Map _resolvers =
new WeakHashMap();
// used to display debugging information on scene block resolution
protected JFrame _dframe;
protected ResolutionView _dpanel;
protected TileOpApplicator _applicator;
/** A debug hook that toggles debug rendering of traversable tiles. */
protected static RuntimeAdjust.BooleanAdjust _traverseDebug =
new RuntimeAdjust.BooleanAdjust(
"Toggles debug rendering of traversable and impassable tiles in " +
"the iso scene view.", "narya.miso.iso_traverse_debug_render",
MisoPrefs.config, false);
/** A debug hook that toggles debug rendering of tile coordinates. */
protected static RuntimeAdjust.BooleanAdjust _coordsDebug =
new RuntimeAdjust.BooleanAdjust(
"Toggles debug rendering of tile coordinates in the iso scene " +
"view.", "narya.miso.iso_coords_debug_render",
MisoPrefs.config, false);
/** A debug hook that toggles debug rendering of sprite paths. */
protected static RuntimeAdjust.BooleanAdjust _pathsDebug =
new RuntimeAdjust.BooleanAdjust(
"Toggles debug rendering of sprite paths in the iso scene view.",
"narya.miso.iso_paths_debug_render", MisoPrefs.config, false);
/** A debug hook that toggles the block resolution display. */
protected static RuntimeAdjust.BooleanAdjust _resolveDebug =
new RuntimeAdjust.BooleanAdjust(
"Enables a view displaying the status of scene block resolution.",
"narya.miso.iso_paths_debug_resolve", MisoPrefs.config, false);
/** The stroke used to draw dirty rectangles. */
protected static final Stroke DIRTY_RECT_STROKE = new BasicStroke(2);
/** The alpha used to fill tiles for debugging purposes. */
protected static final Composite ALPHA_FILL_TILE =
AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f);
/** The default size of the "box" that defines the size of our radial
* menu circles. */
protected static final Dimension DEF_RADIAL_RECT = new Dimension(80, 80);
}