app.samples: add the SoftBodyUpdatePositionTest class

src/test/java/testjoltjni/app/samples/SmokeTestAll.java

@@ -196,6 +196,7 @@ private static void smokeTestAll() {
 
         // softbody package:
         smokeTest(new SoftBodyPressureTest());
+        smokeTest(new SoftBodyUpdatePositionTest());
 
         // vehicle package:
         smokeTest(new MotorcycleTest());

src/test/java/testjoltjni/app/samples/softbody/SoftBodyUpdatePositionTest.java

@@ -0,0 +1,53 @@
+/*
+Copyright (c) 2025 Stephen Gold
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+ */
+package testjoltjni.app.samples.softbody;
+import com.github.stephengold.joltjni.*;
+import com.github.stephengold.joltjni.enumerate.*;
+import testjoltjni.app.samples.*;
+import static com.github.stephengold.joltjni.Jolt.*;
+import static com.github.stephengold.joltjni.std.Std.*;
+/**
+ * A line-for-line Java translation of the Jolt Physics soft-body update-position test.
+ * <p>
+ * Compare with the original by Jorrit Rouwe at
+ * https://github.com/jrouwe/JoltPhysics/blob/master/Samples/Tests/SoftBody/SoftBodyUpdatePositionTest.cpp
+ */
+public class SoftBodyUpdatePositionTest extends Test{
+
+public void Initialize()
+{
+	// Floor
+	CreateFloor();
+
+	// Bodies with various settings for 'make rotation identity' and 'update position'
+	SoftBodyCreationSettings sphere=new SoftBodyCreationSettings(SoftBodySharedSettings.sCreateCube(5, 0.5f), RVec3.sZero(), Quat.sRotation(Vec3.sReplicate(1.0f / sqrt(3.0f)), 0.25f * JPH_PI), Layers.MOVING);
+
+	for (int update_position = 0; update_position < 2; ++update_position)
+		for (int make_rotation_identity = 0; make_rotation_identity < 2; ++make_rotation_identity)
+		{
+			sphere.setPosition (new RVec3(update_position * 10.0f, 10.0f, make_rotation_identity * 10.0f));
+			sphere.setUpdatePosition ( update_position != 0);
+			sphere.setMakeRotationIdentity ( make_rotation_identity != 0);
+			mBodyInterface.createAndAddSoftBody(sphere, EActivation.Activate);
+		}
+}
+}