vhacd: add the ProgressListener interface

src/main/java/com/github/stephengold/joltjni/vhacd/ProgressListener.java

@@ -0,0 +1,43 @@
+/*
+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 com.github.stephengold.joltjni.vhacd;
+
+/**
+ * Callback interface to report progress of the V-HACD algorithm.
+ *
+ * @author Stephen Gold [email protected]
+ */
+public interface ProgressListener {
+    /**
+     * Callback invoked (by native code) for progress updates.
+     *
+     * @param overallPercent an overall completion percentage (≥0, ≤100)
+     * @param stagePercent a completion percentage for the current stage (≥0,
+     * ≤100)
+     * @param operationPercent a completion percentage for the current operation
+     * (≥0, ≤100)
+     * @param stageName the name of the current stage
+     * @param operationName the name of the current operation
+     */
+    void update(double overallPercent, double stagePercent,
+            double operationPercent, String stageName, String operationName);
+}