fix prop graphic's region to use the correct atlas region

assets/maps/mainmap.tmx

@@ -1,36 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<map version="1.10" tiledversion="1.11.0" orientation="orthogonal" renderorder="right-down" width="18" height="16" tilewidth="16" tileheight="16" infinite="0" nextlayerid="7" nextobjectid="11">
+<map version="1.10" tiledversion="1.11.0" orientation="orthogonal" renderorder="right-down" width="18" height="16" tilewidth="16" tileheight="16" infinite="0" nextlayerid="7" nextobjectid="15">
  <properties>
   <property name="music" value="TOWN"/>
  </properties>
  <tileset firstgid="1" source="objects.tsx"/>
- <tileset firstgid="6" source="tileset.tsx"/>
+ <tileset firstgid="7" source="tileset.tsx"/>
  <layer id="1" name="ground" width="18" height="16">
   <data encoding="base64" compression="zlib">
-   eJylkjsPwjAMhDPykCoeEjDBxkgzARPqBEywla2w9lfkr3OVYulkuSHA8Elt5DvH5wTn3BosDTYgfMHEOCtBEb/34KA4GpotGBjnRfR4gJZ4girW7AwN/3ezrsApam/gQlyNvp3nIubhySOQT2XocuGZ2MdnaiVL8WhA3ZOtoPegM2Vqo16Qflwvmd4Tnry7Vu2Ad+EpY6uHJpWV+LzI55e9neNsfAfr3eR6sbb8UK/f978MwUgx7qlN3W0KZop5Rv83Ub9shA==
+   eJylkjsPwjAMhLPykCoeEjDBxkgzARPqBEywla2w9lfkp3OVYumwTAgwfFIb+c7xOcE5twRzgxUIXzAyzkpQxO8t2Cn2hmYNesZ5ET1uoCXuoIo1G0PD/92sC3CI2gs4EWejb+c5i3l48gjkUxm6XHgm9vGZWslSPBpQOztbQe9BZ8rURr0g/bheMr0mPHl3rXvdAe/CU8ZWD00qK/F5kM8vezvG2fgO1rvJ9WJt+aFev+9/6YOBYvimNnW3MZgophn9n9wdbaQ=
   </data>
  </layer>
  <layer id="3" name="water" width="18" height="16">
   <data encoding="base64" compression="zlib">
-   eJxjYBgFo2AUjALKgRES25BIPQAWUABk
-  </data>
- </layer>
- <layer id="4" name="water2" width="18" height="16">
-  <data encoding="base64" compression="zlib">
-   eJxjYBgFo2AUjIKBAQAEgAAB
-  </data>
- </layer>
- <layer id="2" name="props" width="18" height="16">
-  <data encoding="base64" compression="zlib">
-   eJxjYBgFo2AUjIKBAQAEgAAB
+   eJxjYBgFo2AUjALKgTES24hIPQAWrABm
   </data>
  </layer>
  <objectgroup id="6" name="trigger"/>
  <objectgroup id="5" name="objects">
   <object id="5" gid="3" x="197" y="118" width="80" height="112"/>
-  <object id="6" gid="4" x="58" y="101" width="64" height="80"/>
-  <object id="7" gid="4" x="43" y="215" width="64" height="80"/>
-  <object id="8" gid="4" x="199" y="216" width="64" height="80"/>
   <object id="9" gid="5" x="32" y="32" width="16" height="16"/>
   <object id="10" gid="2" x="25" y="214" width="32" height="32">
    <properties>
@@ -38,5 +25,9 @@
     <property name="controller" type="bool" value="true"/>
    </properties>
   </object>
+  <object id="11" gid="6" x="44" y="200" width="41" height="63"/>
+  <object id="12" gid="6" x="137" y="206" width="41" height="63"/>
+  <object id="13" gid="6" x="72" y="93" width="41" height="63"/>
+  <object id="14" gid="6" x="176" y="123" width="41" height="63"/>
  </objectgroup>
 </map>

assets/maps/objects.tsx

@@ -19,21 +19,18 @@
    <object id="1" x="7" y="82" width="67" height="26"/>
   </objectgroup>
  </tile>
- <tile id="3" type="Prop">
-  <properties>
-   <property name="sortOffsetY" type="int" value="8"/>
-  </properties>
-  <image source="objects/oak_tree.png" width="64" height="80"/>
-  <objectgroup draworder="index" id="2">
-   <object id="2" x="24" y="63">
-    <polygon points="0,0 6,1 11,1 16,-1 16,-2 13,-6 13,-12 3,-12 3,-6 2,-5 1,-3"/>
-   </object>
-  </objectgroup>
- </tile>
  <tile id="4" type="Prop">
   <image source="objects/chest.png" width="16" height="16"/>
   <objectgroup draworder="index" id="2">
    <object id="1" x="0" y="4" width="16" height="10"/>
   </objectgroup>
  </tile>
+ <tile id="5" type="Prop">
+  <image source="objects/oak_tree.png" width="41" height="63"/>
+  <objectgroup draworder="index" id="2">
+   <object id="1" x="13" y="54">
+    <polygon points="0,0 6,1 11,1 16,-1 16,-2 14,-5 13,-13 3,-13 3,-6 2,-5 1,-3 0,-1"/>
+   </object>
+  </objectgroup>
+ </tile>
 </tileset>

core/src/main/java/io/github/com/quillraven/tiled/TiledAshleySpawner.java

@@ -4,6 +4,7 @@ import com.badlogic.ashley.core.Engine;
 import com.badlogic.ashley.core.Entity;
 import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.g2d.Animation;
+import com.badlogic.gdx.graphics.g2d.TextureAtlas;
 import com.badlogic.gdx.graphics.g2d.TextureRegion;
 import com.badlogic.gdx.graphics.glutils.FileTextureData;
 import com.badlogic.gdx.maps.MapLayer;
@@ -24,6 +25,7 @@ import com.badlogic.gdx.physics.box2d.PolygonShape;
 import com.badlogic.gdx.physics.box2d.World;
 import com.badlogic.gdx.utils.GdxRuntimeException;
 import io.github.com.quillraven.GdxGame;
+import io.github.com.quillraven.asset.AssetService;
 import io.github.com.quillraven.asset.AtlasAsset;
 import io.github.com.quillraven.component.Animation2D;
 import io.github.com.quillraven.component.Animation2D.AnimationType;
@@ -44,12 +46,14 @@ public class TiledAshleySpawner {
     private final World physicWorld;
     private final MapObjects tmpMapObjects;
     private final Vector2 tmpVec2;
+    private final AssetService assetService;
 
-    public TiledAshleySpawner(Engine engine, World physicWorld) {
+    public TiledAshleySpawner(Engine engine, World physicWorld, AssetService assetService) {
         this.engine = engine;
         this.physicWorld = physicWorld;
         this.tmpMapObjects = new MapObjects();
         this.tmpVec2 = new Vector2();
+        this.assetService = assetService;
     }
 
     public void loadMapObjects(TiledMap tiledMap) {
@@ -159,7 +163,7 @@ public class TiledAshleySpawner {
     private void spawnEntityOf(TiledMapTileMapObject tileMapObject) {
         Entity entity = this.engine.createEntity();
         TiledMapTile tile = tileMapObject.getTile();
-        TextureRegion textureRegion = tile.getTextureRegion();
+        TextureRegion textureRegion = getTextureRegion(tile);
         String classType = tile.getProperties().get("type", "", String.class);
         float sortOffsetY = tile.getProperties().get("sortOffsetY", 0, Integer.class);
         sortOffsetY *= GdxGame.UNIT_SCALE;
@@ -186,6 +190,24 @@ public class TiledAshleySpawner {
         this.engine.addEntity(entity);
     }
 
+    private TextureRegion getTextureRegion(TiledMapTile tile) {
+        String atlasAssetStr = tile.getProperties().get("atlasAsset", "OBJECTS", String.class);
+        AtlasAsset atlasAsset = AtlasAsset.valueOf(atlasAssetStr);
+        FileTextureData textureData = (FileTextureData) tile.getTextureRegion().getTexture().getTextureData();
+        String atlasKey = textureData.getFileHandle().nameWithoutExtension();
+        TextureAtlas textureAtlas = assetService.get(atlasAsset);
+        TextureAtlas.AtlasRegion region = textureAtlas.findRegion(atlasKey + "/" + atlasKey);
+        if (region != null) {
+            return region;
+        }
+
+        // Region not part of an atlas, or the object has an animation.
+        // If it has an animation, then its region is updated in the AnimationSystem.
+        // If it has no region, then we render the region of the Tiled editor to show something, but
+        // that will add one render call due to texture swapping.
+        return tile.getTextureRegion();
+    }
+
     private void addEntityCameraFollow(TiledMapTileMapObject tileMapObject, Entity entity) {
         boolean cameraFollow = tileMapObject.getProperties().get("camFollow", false, Boolean.class);
         if (!cameraFollow) return;