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[libgdx] Updated JsonRollback tool to go from 3.8 JSON to 3.7.

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This commit is contained in:
NathanSweet 2019-06-05 10:05:31 +02:00
parent 2cc92a6f7c
commit c98ed30ebb
1 changed files with 92 additions and 48 deletions
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56
spine-libgdx/spine-skeletonviewer/src/com/esotericsoftware/spine/JsonRollback.java
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@ -33,10 +33,12 @@ import com.badlogic.gdx.files.FileHandle;
import com.badlogic.gdx.utils.Array;
import com.badlogic.gdx.utils.Json;
import com.badlogic.gdx.utils.JsonValue;
import com.badlogic.gdx.utils.JsonValue.ValueType;
import com.badlogic.gdx.utils.JsonWriter.OutputType;
/** Takes Spine JSON data and transforms it to work with an older version of Spine. It supports going from version 3.3.xx to
* 2.1.27.
/** Takes Spine JSON data and transforms it to work with an older version of Spine. Target versions:<br>
* 2.1: supports going from version 3.3.xx to 2.1.27.<br>
* 3.7: supports going from version 3.8.xx to 3.7.94.
* <p>
* Data can be exported from a Spine project, processed with JsonRollback, then imported into an older version of Spine. However,
* JsonRollback may remove data for features not supported by the older Spine version. Because of this, JsonRollback is only
@ -47,13 +49,21 @@ import com.badlogic.gdx.utils.JsonWriter.OutputType;
* the runtime is updated to support a newer Spine version should animators update their Spine editor version to match. */
public class JsonRollback {
static public void main (String[] args) throws Exception {
if (args.length == 0) {
System.out.println("Usage: <inputFile> [outputFile]");
if (args.length != 2 && args.length != 3) {
System.out.println("Usage: <inputFile> <targetVersion> [outputFile]");
System.exit(0);
}
String version = args[1];
if (!version.equals("2.1") && !version.equals("3.7")) {
System.out.println("ERROR: Target version must be: 2.1 or 3.7");
System.out.println("Usage: <inputFile> <toVersion> [outputFile]");
System.exit(0);
}
JsonValue root = new Json().fromJson(null, new FileHandle(args[0]));
if (version.equals("2.1")) {
// In 3.2 skinnedmesh was renamed to weightedmesh.
setValue(root, "skinnedmesh", "skins", "*", "*", "*", "type", "weightedmesh");
@ -101,13 +111,47 @@ public class JsonRollback {
JsonValue bones = child.remove("bones");
if (bones != null) child.addChild("bone", new JsonValue(bones.child.asString()));
}
} else if (version.equals("3.7")) {
JsonValue skins = root.get("skins");
if (skins != null && skins.isArray()) {
JsonValue newSkins = new JsonValue(ValueType.object);
for (JsonValue skinMap = skins.child; skinMap != null; skinMap = skinMap.next) {
JsonValue newSkin = skinMap.get("attachments");
newSkins.addChild(skinMap.getString("name"), newSkin);
}
root.remove("skins");
root.addChild("skins", newSkins);
}
if (args.length > 1)
new FileHandle(args[1]).writeString(root.prettyPrint(OutputType.json, 130), false, "UTF-8");
rollbackCurves(root.get("animations"));
}
if (args.length == 3)
new FileHandle(args[2]).writeString(root.prettyPrint(OutputType.json, 130), false, "UTF-8");
else
System.out.println(root.prettyPrint(OutputType.json, 130));
}
static private void rollbackCurves (JsonValue map) {
if (map == null) return;
JsonValue curve = map.get("curve");
if (curve == null) {
for (map = map.child; map != null; map = map.next)
rollbackCurves(map);
return;
}
if (curve.isNumber()) {
curve.addChild(new JsonValue(curve.asFloat()));
curve.setType(ValueType.array);
curve.addChild(new JsonValue(map.getFloat("c2", 0)));
curve.addChild(new JsonValue(map.getFloat("c3", 0)));
curve.addChild(new JsonValue(map.getFloat("c4", 0)));
map.remove("c2");
map.remove("c3");
map.remove("c4");
}
}
static void setValue (JsonValue root, String newValue, String... path) {
for (JsonValue value : find(root, new Array<JsonValue>(), 0, path))
value.set(newValue);