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more efficient and correct bringToFront/sendToBack

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This commit is contained in:
Nat Quayle Nelson
2022-07-26 19:37:45 +00:00
parent bd6d26a204
commit 8f58f02ef5
1 changed files with 6 additions and 11 deletions
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17
projects/kiss-flixel/src/kiss_flixel/GroupTools.kiss
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@@ -1,17 +1,12 @@
(function :Void clearNulls <>[:FlxObject T] [:FlxTypedGroup<T> group]
(while (contains group.members null)
(group.members.splice (group.members.lastIndexOf null) 1)))
// Because FlxGroup will fill elements into null gaps in groups, this method inefficiently clears null gaps
(function :Void bringToFront <>[:FlxObject T] [:FlxTypedGroup<T> group :T obj]
(group.remove obj true)
(clearNulls group)
(group.add obj))
(when (contains group.members obj)
(group.members.remove obj)
(group.members.push obj)))
// Because FlxGroup will fill elements into null gaps in groups, this method throws an error when a null gap is present
(function :Void sendToBack <>[:FlxObject T] [:FlxTypedGroup<T> group :T obj]
(group.remove obj true)
(group.insert 0 obj))
(when (contains group.members obj)
(group.remove obj)
(group.insert 0 obj)))
(function :FlxRect calculateBounds <>[:FlxObject T] [:FlxTypedGroup<T> group &opt :Float margin]
(unless margin (set margin 0))