Added jopenvrwrapper.

engine/build.gradle

@@ -105,6 +105,7 @@ dependencies {
     compile group: 'org.lwjgl.lwjgl', name: 'lwjgl', version: LwjglVersion
     compile group: 'org.lwjgl.lwjgl', name: 'lwjgl_util', version: LwjglVersion
     compile group: 'java3d', name: 'vecmath', version: '1.3.1' // Note: Downgraded to this release until TeraMath ready
+    compile "org.joml:joml:1.8.1"
     compile group: 'org.abego.treelayout', name: 'org.abego.treelayout.core', version: '1.0.3'
     compile group: 'com.miglayout', name: 'miglayout-core', version: '5.0'
     compile group: 'de.matthiasmann.twl', name: 'PNGDecoder', version: '1111'

engine/src/main/java/org/terasology/rendering/openvrprovider/ControllerListener.java

@@ -0,0 +1,20 @@
+package openvrprovider;
+
+import jopenvr.JOpenVRLibrary;
+import jopenvr.VRControllerState_t;
+
+/* Interface intended to be front-facing to user for controller interaction. */
+public interface ControllerListener {
+    public final int LEFT_CONTROLLER = 0;
+    public final int RIGHT_CONTROLLER = 1;
+    public static int k_EAxis_Trigger = 1;
+    public static int k_EAxis_TouchPad = 0;
+    public static long k_buttonTouchpad = (1L << JOpenVRLibrary.EVRButtonId.EVRButtonId_k_EButton_SteamVR_Touchpad);
+    public static long k_buttonTrigger = (1L << JOpenVRLibrary.EVRButtonId.EVRButtonId_k_EButton_SteamVR_Trigger);
+    public static long k_buttonAppMenu = (1L << JOpenVRLibrary.EVRButtonId.EVRButtonId_k_EButton_ApplicationMenu);
+    public static long k_buttonGrip = (1L << JOpenVRLibrary.EVRButtonId.EVRButtonId_k_EButton_Grip);
+    public static float triggerThreshold = .25f;
+
+    public void buttonStateChanged(VRControllerState_t stateBefore, VRControllerState_t stateAfter, int nController);
+    // TODO: touch, axes
+}

engine/src/main/java/org/terasology/rendering/openvrprovider/OSValidator.java

@@ -0,0 +1,59 @@
+package openvrprovider;
+
+/* Mainly used to locate the OpenVR library on different platforms. */
+public class OSValidator {
+    private static final String OS = System.getProperty("os.name").toLowerCase();
+    private static final String arch = System.getProperty("os.arch");
+    private static final String userDir = System.getProperty("user.dir");
+
+    public static boolean isWin64() {
+
+        return (OS.indexOf("win") >= 0 && arch.contains("64"));
+
+    }
+
+    public static boolean isWin32() {
+
+        return (OS.indexOf("win") >= 0 && arch.contains("32"));
+
+    }
+
+    public static boolean isLinux64() {
+
+        return (OS.indexOf("linux") >= 0 && arch.contains("64"));
+
+    }
+
+    public static boolean isLinux32() {
+
+        return (OS.indexOf("linux") >= 0 && arch.contains("32"));
+
+    }
+
+    public static boolean isMac() {
+
+        return (OS.indexOf("mac") >= 0);
+
+    }
+
+    public static String getOsString() {
+        if (isWin64())
+            return new String("win32-x86-64");
+        else if (isWin32())
+            return new String("win32-x86");
+        else if (isLinux64())
+            return new String("linux-x86-64");
+        else if (isLinux32())
+            return new String("linux-x86");
+        else if (isMac())
+            return new String("darwin");
+        return new String("unknown");
+    }
+
+    public static String getLibPath() {
+        if (getOsString().contains("win"))
+            return userDir + "\\openvr_natives\\" + getOsString();
+        return userDir + "/openvr_natives/" + getOsString();
+    }
+
+}