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Added EditSession Extent wrapping callbacks.

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sk89q 2014-03-31 20:46:57 -07:00
parent 8ff09d6391
commit 76b679caad
1 changed files with 50 additions and 3 deletions
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53
src/main/java/com/sk89q/worldedit/EditSession.java
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@ -74,6 +74,10 @@ import static com.sk89q.worldedit.regions.Regions.*;
* Most of the actual functionality is implemented with a number of other
* {@link Extent}s that are chained together. For example, history is logged
* using the {@link ChangeSetExtent}.
* </p>
* Subclasses can override {@link #wrapBeforeHistory(Extent)},
* {@link #wrapBeforeReorder(Extent)} and {@link #wrapBeforeSet(Extent)} to
* inject custom {@link Extent}s.
*/
public class EditSession implements Extent {
@ -127,20 +131,25 @@ public class EditSession implements Extent {
this.world = world;
Extent wrappedExtent;
// This extents are ALWAYS used
fastModeExtent = new FastModeExtent(world, false);
ChunkLoadingExtent chunkLoadingExtent = new ChunkLoadingExtent(fastModeExtent, world);
LastAccessExtentCache cacheExtent = new LastAccessExtentCache(chunkLoadingExtent);
BlockQuirkExtent quirkExtent = new BlockQuirkExtent(cacheExtent, world);
wrappedExtent = checkNotNull(wrapBeforeSet(cacheExtent), "wrapBeforeSet() returned null");
BlockQuirkExtent quirkExtent = new BlockQuirkExtent(wrappedExtent, world);
DataValidatorExtent validator = new DataValidatorExtent(quirkExtent, world);
blockBagExtent = new BlockBagExtent(validator, world, blockBag);
// This extent can be skipped by calling rawSetBlock()
reorderExtent = new MultiStageReorder(blockBagExtent, false);
wrappedExtent = checkNotNull(wrapBeforeReorder(reorderExtent), "wrapBeforeReorder() returned null");
// These extents can be skipped by calling smartSetBlock()
ChangeSetExtent changeSetExtent = new ChangeSetExtent(reorderExtent, changeSet);
maskingExtent = new MaskingExtent(changeSetExtent, Masks.alwaysTrue());
ChangeSetExtent changeSetExtent = new ChangeSetExtent(wrappedExtent, changeSet);
wrappedExtent = checkNotNull(wrapBeforeHistory(changeSetExtent), "wrapBeforeHistory() returned null");
maskingExtent = new MaskingExtent(wrappedExtent, Masks.alwaysTrue());
changeLimiter = new BlockChangeLimiter(maskingExtent, maxBlocks);
this.bypassReorderHistory = blockBagExtent;
@ -148,6 +157,44 @@ public class EditSession implements Extent {
this.bypassNone = changeLimiter;
}
/**
* Wrap the given extent at an early point.
* </p>
* Extents added here are called after most of the other extents have been
* called, meaning that it will receive the final changes.
*
* @param extent the extent that needs to be wrapped
* @return the replacement extent
*/
protected Extent wrapBeforeSet(Extent extent) {
return extent;
}
/**
* Wrap the given extent at a point before reordering is done.
* </p>
* Extents added here are called before changes are re-ordered.
*
* @param extent the extent that needs to be wrapped
* @return the replacement extent
*/
protected Extent wrapBeforeReorder(Extent extent) {
return extent;
}
/**
* Wrap the given extent at a point before history is logged.
* </p>
* Extents added here are called before the changes are stored
* in history.
*
* @param extent the extent that needs to be wrapped
* @return the replacement extent
*/
protected Extent wrapBeforeHistory(Extent extent) {
return extent;
}
/**
* Get the world.
*