IndexedMesh: add 2 native getters

stephengold · Feb 3, 2024 · dfe728a · dfe728a
1 parent 83fe904
commit dfe728a
Show file tree

Hide file tree

Showing 3 changed files with 50 additions and 2 deletions.
diff --git a/src/main/java/com/jme3/bullet/collision/shapes/infos/IndexedMesh.java b/src/main/java/com/jme3/bullet/collision/shapes/infos/IndexedMesh.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2023 jMonkeyEngine
+ * Copyright (c) 2019-2024 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -480,6 +480,10 @@ private static void splitTriangle(
     // *************************************************************************
     // native private methods
 
+    native private static int countTriangles(long meshId);
+
+    native private static int countVertices(long meshId);
+
     native private static long createByte(ByteBuffer indices,
             FloatBuffer vertexPositions, int numTriangles, int numVertices,
             int vertexStride, int indexStride);

diff --git a/src/main/native/glue/com_jme3_bullet_collision_shapes_infos_IndexedMesh.cpp b/src/main/native/glue/com_jme3_bullet_collision_shapes_infos_IndexedMesh.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2020 jMonkeyEngine
+ * Copyright (c) 2019-2024 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,6 +36,34 @@
 #include "com_jme3_bullet_collision_shapes_infos_IndexedMesh.h"
 #include "jmeBulletUtil.h"
 
+/*
+ * Class:     com_jme3_bullet_collision_shapes_infos_IndexedMesh
+ * Method:    countTriangles
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_com_jme3_bullet_collision_shapes_infos_IndexedMesh_countTriangles
+(JNIEnv *pEnv, jclass, jlong meshId) {
+    btIndexedMesh * const pMesh = reinterpret_cast<btIndexedMesh *> (meshId);
+    NULL_CHK(pEnv, pMesh, "The btIndexedMesh does not exist.", 0);
+
+    jint result = pMesh->m_numTriangles;
+    return result;
+}
+
+/*
+ * Class:     com_jme3_bullet_collision_shapes_infos_IndexedMesh
+ * Method:    countVertices
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_com_jme3_bullet_collision_shapes_infos_IndexedMesh_countVertices
+(JNIEnv *pEnv, jclass, jlong meshId) {
+    btIndexedMesh * const pMesh = reinterpret_cast<btIndexedMesh *> (meshId);
+    NULL_CHK(pEnv, pMesh, "The btIndexedMesh does not exist.", 0);
+
+    jint result = pMesh->m_numVertices;
+    return result;
+}
+
 /*
  * Class:     com_jme3_bullet_collision_shapes_infos_IndexedMesh
  * Method:    createByte

diff --git a/src/main/native/glue/com_jme3_bullet_collision_shapes_infos_IndexedMesh.h b/src/main/native/glue/com_jme3_bullet_collision_shapes_infos_IndexedMesh.h