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More work on object tiles.

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git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@448 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Walter Korman
2001-10-12 00:42:08 +00:00
parent 9df7d2d882
commit 6638380a4d
2 changed files with 119 additions and 7 deletions
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src/java/com/threerings/miso/client/IsoSceneView.java
+78 -3
View File
@@ -1,5 +1,5 @@
//
// $Id: IsoSceneView.java,v 1.58 2001/10/11 16:21:08 shaper Exp $
// $Id: IsoSceneView.java,v 1.59 2001/10/12 00:42:08 shaper Exp $
package com.threerings.miso.scene;
@@ -10,8 +10,11 @@ import java.awt.image.*;
import java.util.List;
import java.util.ArrayList;
import com.samskivert.util.HashIntMap;
import com.threerings.media.sprite.*;
import com.threerings.media.tile.Tile;
import com.threerings.media.tile.ObjectTile;
import com.threerings.miso.Log;
import com.threerings.miso.scene.util.AStarPathUtil;
@@ -49,6 +52,9 @@ public class IsoSceneView implements SceneView
}
}
// create the hashtable used to store object bounds polygons
_objpolys = new HashIntMap();
// create the array used to mark dirty tiles
_dirty = new boolean[model.scenewid][model.tilehei];
@@ -62,6 +68,9 @@ public class IsoSceneView implements SceneView
public void setScene (MisoScene scene)
{
_scene = scene;
// generate all object shadow tiles and polygons
prepareAllObjectTiles();
}
// documentation inherited
@@ -186,7 +195,7 @@ public class IsoSceneView implements SceneView
(tile.height - _model.tilehei);
// draw the tile image
tile.paint(gfx, poly);
renderTile(gfx, tile, xx, yy, poly);
}
// draw all sprites residing in the current tile
@@ -246,7 +255,7 @@ public class IsoSceneView implements SceneView
int ypos = screenY - (tile.height - _model.tilehei);
// draw the tile image at the appropriate screen position
tile.paint(gfx, poly);
renderTile(gfx, tile, tx, ty, poly);
// draw all sprites residing in the current tile
// TODO: simplify other tile positioning here to use poly
@@ -277,6 +286,69 @@ public class IsoSceneView implements SceneView
}
}
/**
* Render the given tile in the scene to the given graphics
* context.
*/
protected void renderTile (
Graphics2D gfx, Tile tile, int x, int y, Polygon poly)
{
if (tile instanceof ObjectTile) {
poly = (Polygon)_objpolys.get(getCoordinateKey(x, y));
}
tile.paint(gfx, poly);
}
/**
* Pre-processes all object tiles in the scene to create shadow
* tiles and bounding polygons.
*/
protected void prepareAllObjectTiles ()
{
ObjectTile[][] tiles = _scene.getObjectLayer();
for (int xx = 0; xx < _model.scenewid; xx++) {
for (int yy = 0; yy < _model.scenehei; yy++) {
ObjectTile tile = tiles[xx][yy];
if (tile == null) {
continue;
}
prepareObjectTile(tile, xx, yy);
}
}
}
/**
* Pre-processes a single object tile. Creates shadow tiles in
* its footprint making the object fully impassable, and creates
* the bounding polygon for the object which is used when
* invalidating dirty rectangles or tiles, and when rendering the
* object to a graphics context. This method should be called
* when an object tile is added to a scene.
*/
protected void prepareObjectTile (ObjectTile tile, int x, int y)
{
// TODO: create shadow tiles in the footprint of this object
// create the bounding polygon for this object
int key = getCoordinateKey(x, y);
Polygon bounds = IsoUtil.getObjectBounds(_model, _polys[x][y], tile);
// save it off in the object bounds hashtable
_objpolys.put(key, bounds);
}
/**
* Returns a unique integer key corresponding to the given
* coordinates, suitable for storing and retrieving objects from a
* hashtable.
*/
protected int getCoordinateKey (int x, int y)
{
return (x << 16 | y);
}
/**
* Paint the tile coordinate numbers in tile (x, y) whose top-left
* corner is at screen pixel coordinates (sx, sy).
@@ -607,6 +679,9 @@ public class IsoSceneView implements SceneView
/** Polygon instances for all of our tiles. */
protected Polygon _polys[][];
/** Bounding polygons for all of the object tiles. */
protected HashIntMap _objpolys;
/** The dirty tiles that need to be re-painted. */
protected boolean _dirty[][];
src/java/com/threerings/miso/client/util/IsoUtil.java
+41 -4
View File
@@ -1,12 +1,12 @@
//
// $Id: IsoUtil.java,v 1.6 2001/09/13 19:10:26 mdb Exp $
// $Id: IsoUtil.java,v 1.7 2001/10/12 00:42:08 shaper Exp $
package com.threerings.miso.scene.util;
import java.awt.Point;
import java.awt.Polygon;
import java.awt.*;
import com.threerings.media.sprite.Sprite;
import com.threerings.media.tile.ObjectTile;
import com.threerings.media.util.MathUtil;
import com.threerings.miso.Log;
@@ -18,7 +18,44 @@ import com.threerings.miso.scene.*;
*/
public class IsoUtil
{
/**
public static Polygon getObjectBounds (
IsoSceneViewModel model, Polygon root, ObjectTile tile)
{
Rectangle bounds = root.getBounds();
int sx = bounds.x - ((tile.baseWidth - 1) * model.tilehwid);
int sy = bounds.y - tile.height + model.tilehei;
Polygon boundsPoly = new Polygon();
int rx = sx, ry = sy;
// top-left point
boundsPoly.addPoint(rx, ry);
// top-right point
rx = sx + tile.width;
boundsPoly.addPoint(rx, ry);
// bottom-right point
ry = bounds.y - ((tile.baseHeight - 2) * model.tilehhei);
boundsPoly.addPoint(rx, ry);
// bottom-middle point
rx = bounds.x + model.tilehwid;
ry = bounds.y + model.tilehei;
boundsPoly.addPoint(rx, ry);
// bottom-left point
rx = sx;
ry = bounds.y - ((tile.baseWidth - 2) * model.tilehhei);
boundsPoly.addPoint(rx, ry);
// top-left point
boundsPoly.addPoint(sx, sy);
return boundsPoly;
}
/**
* Given two points in screen pixel coordinates, return the
* compass direction that point B lies in from point A from an
* isometric perspective.