- allow adding precompiled bullet binaries to natives jar for binaries that can't be built on the current system

- add precompiled bullet libraries

jme3-bullet-native/build.gradle

@@ -126,8 +126,6 @@ task unzipBullet(type: Copy) {
 unzipBullet.dependsOn {
     def zipFilePath = project.projectDir.absolutePath + File.separator + bulletZipFile
     def zipFile = new File(zipFilePath)
-//    println "zipFile path: " + zipFile.absolutePath
-//    println "zipFile exists: " + zipFile.exists()
     if (!zipFile.exists()) {
         downloadBullet
     }
@@ -135,40 +133,45 @@ unzipBullet.dependsOn {
 
 compileJava.dependsOn {
     def bulletUnzipDir = new File(project.projectDir.absolutePath + File.separator + bulletFolder)
-//    println "bulletUnzipDir path: " + bulletUnzipDir.absolutePath
-//    println "bulletUnzipDir exists: " + bulletUnzipDir.isDirectory()
     if (!bulletUnzipDir.isDirectory()) {
         unzipBullet
     }
 }
 
-//task buildAllExecutables {
-//    dependsOn binaries.withType(SharedLibraryBinary).matching {
-//        it.buildable
-//    }
-//}
-
-// Adds all built binaries to java jar task
+// Adds all available binaries to java jar task
 binaries.withType(SharedLibraryBinary) { binary ->
+    // For all binaries that can't be built on the current system
     if (!buildable) {
-        //TODO: obtain elsewhere if not available
+        //Get from libs folder if no fresh build is available in the build folder and add to jar file
         if(!binary.tasks.outputFile.get(0).exists()){
+            def fileName = binary.tasks.outputFile.get(0).getName();
+            def precompiledFile = new File("libs/native/${targetPlatform.operatingSystem.name}/${targetPlatform.architecture.name}/${fileName}")
+            if(precompiledFile.exists()){
+                jar.into("native/${targetPlatform.operatingSystem.name}/${targetPlatform.architecture.name}") { from precompiledFile }
+            }
             return
         } else{
-            // Add output to jar file if the binary exists in the build folder already,
+            // Add binary to jar file if the binary exists in the build folder already,
             // e.g. when the build of jme3-bullet-native has been run on a virtual box
             // and the project hasn't been cleaned yet.
             jar.into("native/${targetPlatform.operatingSystem.name}/${targetPlatform.architecture.name}") { from binary.tasks.outputFile }
             return
         }
     }
-    // Get builder of this binary
-    def builderTask = binary.tasks
     
+    // For all binaries that can be built on the current system
+    def builderTask = binary.tasks
     // Add output to jar file
     jar.into("native/${targetPlatform.operatingSystem.name}/${targetPlatform.architecture.name}") { from builderTask.outputFile }
     // Add depend on build
     jar.dependsOn builderTask
+    // Add output to libs folder
+    task "copyBinaryToLibs${targetPlatform}"(type: Copy) {
+        from builderTask.outputFile
+        into "libs/native/${targetPlatform.operatingSystem.name}/${targetPlatform.architecture.name}"
+    }
+    // Add depend on copy
+    jar.dependsOn("copyBinaryToLibs${targetPlatform}")
 }
 
 // Helper class to wrap ant dowload task