Add way to get the generic Os name from Platform

jme3-core/src/main/java/com/jme3/system/Platform.java

@@ -39,109 +39,122 @@ public enum Platform {
     /**
      * Microsoft Windows 32-bit AMD/Intel
      */
-    Windows32,
-    
+    Windows32(Os.Windows),
+
     /**
      * Microsoft Windows 64-bit AMD/Intel
      */
-    Windows64(true),
-    
+    Windows64(Os.Windows, true),
+
     /**
      * Microsoft Windows 32-bit ARM
      */
-    Windows_ARM32,
+    Windows_ARM32(Os.Windows),
 
     /**
      * Microsoft Windows 64-bit ARM
      */
-    Windows_ARM64(true),
+    Windows_ARM64(Os.Windows, true),
 
     /**
      * Linux 32-bit Intel
      */
-    Linux32,
-    
+    Linux32(Os.Linux),
+
     /**
      * Linux 64-bit Intel
      */
-    Linux64(true),
-    
+    Linux64(Os.Linux, true),
+
     /**
      * Linux 32-bit ARM
      */
-    Linux_ARM32,
-    
+    Linux_ARM32(Os.Linux),
+
     /**
      * Linux 64-bit ARM
      */
-    Linux_ARM64(true),
-    
+    Linux_ARM64(Os.Linux, true),
+
     /**
      * Apple Mac OS X 32-bit Intel
      */
-    MacOSX32,
-    
+    MacOSX32(Os.MacOS),
+
     /**
      * Apple Mac OS X 64-bit Intel
      */
-    MacOSX64(true),
-    
+    MacOSX64(Os.MacOS, true),
+
     /**
      * Apple Mac OS X 64-bit ARM
      */
-    MacOSX_ARM64(true),
+    MacOSX_ARM64(Os.MacOS, true),
 
     /**
      * Apple Mac OS X 32 bit PowerPC
      */
-    MacOSX_PPC32,
-    
+    MacOSX_PPC32(Os.MacOS),
+
     /**
      * Apple Mac OS X 64 bit PowerPC
      */
-    MacOSX_PPC64(true),
-    
+    MacOSX_PPC64(Os.MacOS, true),
+
     /**
      * Android ARM5
      */
-    Android_ARM5,
-    
+    Android_ARM5(Os.Android),
+
     /**
      * Android ARM6
      */
-    Android_ARM6,
+    Android_ARM6(Os.Android),
 
     /**
      * Android ARM7
      */
-    Android_ARM7,
+    Android_ARM7(Os.Android),
 
     /**
      * Android ARM8
      */
-    Android_ARM8,
+    Android_ARM8(Os.Android),
 
     /**
      * Android x86
      */
-    Android_X86,
+    Android_X86(Os.Android),
 
     /**
      * iOS on x86
      */
-    iOS_X86,
+    iOS_X86(Os.iOS),
 
     /**
      * iOS on ARM
      */
-    iOS_ARM,
-    
+    iOS_ARM(Os.iOS),
+
     /**
      * Android running on unknown platform (could be x86 or mips for example).
      */
-    Android_Other;
+    Android_Other(Os.Android);
+
     
+    /**
+     * Enumerate generic names of operating systems
+     */
+    public enum Os {
+        Linux, 
+        Windows, 
+        iOS, 
+        MacOS, 
+        Android
+    }
+
     private final boolean is64bit;
+    private final Os os;
 
     /**
      * Test for a 64-bit address space.
@@ -151,12 +164,22 @@ public enum Platform {
     public boolean is64Bit() {
         return is64bit;
     }
-    
-    private Platform(boolean is64bit) {
+
+    /**
+     * Get the opterating system of this platform
+     * 
+     * @return the generic name of the operating system of this platform
+     */
+    public Os getOs() {
+        return os;
+    }
+
+    private Platform(Os os, boolean is64bit) {
+        this.os = os;
         this.is64bit = is64bit;
     }
-    
-    private Platform() {
-        this(false);
+
+    private Platform(Os os) {
+        this(os, false);
     }
 }