ConstVehicleConstraint: add the getWheel() method

Author: stephengold

src/main/java/com/github/stephengold/joltjni/VehicleConstraint.java

@@ -130,22 +130,6 @@ public VehicleCollisionTester getVehicleCollisionTester() {
         return tester;
     }
 
-    /**
-     * Access the specified wheel.
-     *
-     * @param wheelIndex the index of the wheel to access (≥0)
-     * @return a new JVM object with the pre-existing native object assigned
-     */
-    public Wheel getWheel(int wheelIndex) {
-        long constraintVa = va();
-        long wheelVa = getWheel(constraintVa, wheelIndex);
-        int ordinal = Constraint.getControllerType(constraintVa);
-        VehicleConstraintRef ref = toRef();
-        Wheel result = Wheel.newWheel(wheelVa, ordinal, ref);
-
-        return result;
-    }
-
     /**
      * Override the vehicle's gravity vector.
      *
@@ -356,6 +340,23 @@ public int getNumStepsBetweenCollisionTestInactive() {
         return result;
     }
 
+    /**
+     * Access the specified wheel.
+     *
+     * @param wheelIndex the index of the wheel to access (≥0)
+     * @return a new JVM object with the pre-existing native object assigned
+     */
+    @Override
+    public Wheel getWheel(int wheelIndex) {
+        long constraintVa = va();
+        long wheelVa = getWheel(constraintVa, wheelIndex);
+        int ordinal = Constraint.getControllerType(constraintVa);
+        VehicleConstraintRef ref = toRef();
+        Wheel result = Wheel.newWheel(wheelVa, ordinal, ref);
+
+        return result;
+    }
+
     /**
      * Copy the basis vectors for the specified wheel.
      *
@@ -527,7 +528,7 @@ native static int getNumStepsBetweenCollisionTestInactive(
 
     native private static long getVehicleCollisionTester(long constraintVa);
 
-    native private static long getWheel(long constraintVa, int wheelIndex);
+    native static long getWheel(long constraintVa, int wheelIndex);
 
     native static void getWheelLocalBasis(
             long constraintVa, long wheelVa, FloatBuffer storeFloats);

src/main/java/com/github/stephengold/joltjni/VehicleConstraintRef.java

@@ -331,6 +331,22 @@ public EConstraintType getType() {
         return result;
     }
 
+    /**
+     * Access the specified wheel.
+     *
+     * @param wheelIndex the index of the wheel to access (≥0)
+     * @return a new JVM object with the pre-existing native object assigned
+     */
+    @Override
+    public Wheel getWheel(int wheelIndex) {
+        long constraintVa = targetVa();
+        long wheelVa = VehicleConstraint.getWheel(constraintVa, wheelIndex);
+        int ordinal = Constraint.getControllerType(constraintVa);
+        Wheel result = Wheel.newWheel(wheelVa, ordinal, this);
+
+        return result;
+    }
+
     /**
      * Copy the basis vectors for the specified wheel.
      *

src/main/java/com/github/stephengold/joltjni/readonly/ConstVehicleConstraint.java

@@ -102,6 +102,14 @@ public interface ConstVehicleConstraint extends ConstConstraint {
      */
     int getNumStepsBetweenCollisionTestInactive();
 
+    /**
+     * Access the specified wheel. The constraint is unaffected.
+     *
+     * @param wheelIndex the index of the wheel to access (≥0)
+     * @return a new JVM object with the pre-existing native object assigned
+     */
+    ConstWheel getWheel(int wheelIndex);
+
     /**
      * Copy the basis vectors for the specified wheel.
      *