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Changed so that to follow a pathable you pass in the pathable and one of the

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public follow mode constants, instead of having a different method for
enabling each different follow mode.
Added a new follow mode: track, which aligns the upper-left coordinate of the
view with the hotspot of the pathable.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2851 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Ray Greenwell
2003-11-12 21:47:09 +00:00
parent 98e59b847e
commit 708008b65f
1 changed files with 26 additions and 30 deletions
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src/java/com/threerings/media/VirtualMediaPanel.java
+26 -30
View File
@@ -1,5 +1,5 @@
//
// $Id: VirtualMediaPanel.java,v 1.22 2003/06/24 18:02:58 ray Exp $
// $Id: VirtualMediaPanel.java,v 1.23 2003/11/12 21:47:09 ray Exp $
package com.threerings.media;
@@ -33,6 +33,19 @@ import com.threerings.media.util.Pathable;
*/
public class VirtualMediaPanel extends MediaPanel
{
/** The code for the pathable following mode wherein we keep the view
* centered on the pathable's location. */
public static final byte CENTER_ON_PATHABLE = 0;
/** The code for the pathable following mode wherein we ensure that
* the marked pathable is always kept within the visible bounds of the
* view. */
public static final byte ENCLOSE_PATHABLE = 1;
/** The code for the pathable following mode wherein we set the upper-left
* corner of the view to the coordinates of the pathable. */
public static final byte TRACK_PATHABLE = 2;
/**
* Constructs a virtual media panel.
*/
@@ -77,39 +90,26 @@ public class VirtualMediaPanel extends MediaPanel
/**
* Instructs the view to follow the supplied pathable; ensuring that
* the pathable always remains in the center of the view. The virtual
* coordinates will be adjusted immediately and then on every tick to
* center the view on the sprite.
* the view's coordinates are adjusted according to the follow mode.
*
* @param pable the pathable to follow.
* @param followMode the strategy for keeping the pathable in view.
*/
public void setFollowsPathable (Pathable pable)
public void setFollowsPathable (Pathable pable, byte followMode)
{
_fmode = CENTER_ON_PATHABLE;
_fpath = pable;
trackPathable(); // immediately update our location
}
/**
* Instructs the view to scroll to ensure that the specified pathable
* is always inside the visible bounds of the view.
*/
public void setEnclosesPathable (Pathable pable)
{
_fmode = ENCLOSE_PATHABLE;
_fmode = followMode;
_fpath = pable;
trackPathable(); // immediately update our location
}
/**
* Clears out the pathable that was being enclosed or followed due to
* a previous call to {@link #setFollowsPathable} or {@link
* #setEnclosesPathable}.
* a previous call to {@link #setFollowsPathable}.
*/
public void clearPathable ()
{
_fpath = null;
_fmode = -1;
_fmode = (byte) -1;
}
/**
@@ -262,6 +262,11 @@ public class VirtualMediaPanel extends MediaPanel
// figure out where to move
switch (_fmode) {
case TRACK_PATHABLE:
nx = _fpath.getX();
ny = _fpath.getY();
break;
case CENTER_ON_PATHABLE:
nx = _fpath.getX() - width/2;
ny = _fpath.getY() - height/2;
@@ -384,7 +389,7 @@ public class VirtualMediaPanel extends MediaPanel
protected Mirage _background;
/** The mode we're using when following a pathable. */
protected int _fmode = -1;
protected byte _fmode = -1;
/** The pathable being followed. */
protected Pathable _fpath;
@@ -392,13 +397,4 @@ public class VirtualMediaPanel extends MediaPanel
/** We need to know our absolute coordinates in order to work around
* the Windows copyArea() bug. */
protected Rectangle _abounds = new Rectangle();
/** The code for the pathable following mode wherein we keep the view
* centered on the pathable's location. */
protected static final int CENTER_ON_PATHABLE = 0;
/** The code for the pathable following mode wherein we ensure that
* the marked pathable is always kept within the visible bounds of the
* view. */
protected static final int ENCLOSE_PATHABLE = 1;
}