[unity] Fixed atlas asset problems after re-export with latest 4.0 Spine Editor beta version.

examples/export/runtimes.sh

@@ -445,9 +445,9 @@ UNITY_TARGET_DIR="$ROOT/spine-unity/Assets/Spine Examples/Spine Skeletons/Dragon
 cp -f ../dragon/export/dragon-ess.json "$UNITY_TARGET_DIR/dragon.json"
 cp -f ../dragon/export/dragon-pma.atlas "$UNITY_TARGET_DIR/dragon.atlas.txt"
 sed -i 's/dragon-pma.png/dragon.png/g' "$UNITY_TARGET_DIR/dragon.atlas.txt"
-sed -i 's/dragon-pma2.png/dragon2.png/g' "$UNITY_TARGET_DIR/dragon.atlas.txt"
+sed -i 's/dragon-pma_2.png/dragon2.png/g' "$UNITY_TARGET_DIR/dragon.atlas.txt"
 cp -f ../dragon/export/dragon-pma.png "$UNITY_TARGET_DIR/dragon.png"
-cp -f ../dragon/export/dragon-pma2.png "$UNITY_TARGET_DIR/dragon2.png"
+cp -f ../dragon/export/dragon-pma_2.png "$UNITY_TARGET_DIR/dragon2.png"
 
 UNITY_TARGET_DIR="$ROOT/spine-unity/Assets/Spine Examples/Spine Skeletons/Goblins"
 cp -f ../goblins/export/goblins-pro.json "$UNITY_TARGET_DIR/goblins.json"

spine-unity/Assets/Spine Examples/Spine Skeletons/Dragon/dragon.atlas.txt

@@ -1,4 +1,4 @@
-dragon-pma.png
+dragon.png
 	size: 1024, 1024
 	filter: Linear, Linear
 	pma: true
@@ -87,7 +87,7 @@ tail06
 thiagobrayner
 	bounds: 54, 912, 350, 31
 
-dragon-pma2.png
+dragon2.png
 	size: 1024, 512
 	filter: Linear, Linear
 	pma: true

spine-unity/Assets/Spine Examples/Spine Skeletons/Dragon/dragon.json

@@ -1,7 +1,7 @@
 {
 "skeleton": {
 	"hash": "UIFpNNbbcQI",
-	"spine": "4.0.58-beta",
+	"spine": "4.0.59-beta",
 	"x": -366.31,
 	"y": -286.62,
 	"width": 660.39,

spine-unity/Assets/Spine/Runtime/spine-unity/Asset Types/SpineAtlasAsset.cs

@@ -71,8 +71,9 @@ namespace Spine.Unity {
 			string[] atlasLines = atlasString.Split('\n');
 			var pages = new List<string>();
 			for (int i = 0; i < atlasLines.Length - 1; i++) {
-				if (atlasLines[i].Trim().Length == 0)
-					pages.Add(atlasLines[i + 1].Trim().Replace(".png", ""));
+				string line = atlasLines[i].Trim();
+				if (line.EndsWith(".png"))
+					pages.Add(line.Replace(".png", ""));
 			}
 
 			// Populate Materials[] by matching texture names with page names.