specify whether flixel projects need to pass html5/c++ compilation

projects/nat-flixel-desktop-playground/source/EntrySpriteSystem.kiss

@@ -0,0 +1,27 @@
+(loadFrom "nat-archive-tool" "src/nat/Lib.kiss")
+
+(prop :Map<String,EntrySprite> sprites (new Map))
+
+(defNew [:String tagFilterString :String positionKey :PlayState playState]
+    (super
+        ->[archive e]
+            ?(and (tagsMatch archive e tagFilterString) (hasComponent e Images))
+        ->[archive e]
+            {
+                (when !(hasComponent e Positions)
+                    (withWritableEntry archive e
+                        (addComponent archive e Positions (new Map))))
+                (withWritableComponents archive e [positions Positions]
+                    (when !(positions.exists positionKey)
+                        (dictSet positions positionKey (object x 0.0 y 0.0 z 0.0))))
+                (let [sprite (new EntrySprite positionKey archive e)]
+                    (playState.entryGroup.add sprite)
+                    (dictSet sprites e.id sprite))
+            })
+    
+    (set onRemoveEntry
+        ->[archive e]
+            {
+                (.kill (dictGet sprites e.id))
+                (sprites.remove e.id)
+            }))