Fix datagen ignoring rotation of model elements

Fix #109

src/data/kotlin/ru/dbotthepony/mc/otm/datagen/models/MatteryModelBuilder.kt

@@ -130,12 +130,29 @@ class MatteryModelBuilder(resourceLocation: ResourceLocation, existingFileHelper
 					with(face(Direction.valueOf(k.uppercase()))) {
 						check(v is JsonObject) { "Element has invalid face at $k" }
 
-						(v["uv"] as? JsonArray)?.let { uv ->
+						(v["uv"] as? JsonArray)?.also { uv ->
 							check(uv.size() == 4) { "Element at $k has invalid number of uvs ${uv.size()}" }
 							uvs(uv[0].asFloat, uv[1].asFloat, uv[2].asFloat, uv[3].asFloat)
 						}
 
-						(v["texture"] as? JsonPrimitive)?.let {
+						(v["rotation"] as? JsonPrimitive)?.also { rotation ->
+							when (rotation.asInt) {
+								90 -> rotation(FaceRotation.CLOCKWISE_90)
+								-90, 270 -> rotation(FaceRotation.COUNTERCLOCKWISE_90)
+								180, -180 -> rotation(FaceRotation.UPSIDE_DOWN)
+								else -> rotation(FaceRotation.ZERO)
+							}
+						}
+
+						(v["emissivity"] as? JsonPrimitive)?.asInt?.also { emissivity ->
+							emissivity(emissivity)
+						}
+
+						(v["ao"] as? JsonPrimitive)?.asBoolean?.also { ao ->
+							ao(ao)
+						}
+
+						(v["texture"] as? JsonPrimitive)?.also {
 							texture(it.asString)
 						}
 					}