fix: made joystick static, according to specs
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3d083b62d1
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@ -43,7 +43,7 @@ import org.lwjgl.Sys;
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*
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* No buffering is available.
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*
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* Currently n (native limits, currently 128) buttons, the x, y, z axis is supported along with a POV (or HAT), where the z axis
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* Currently n (native limits, currently 128 - might change) buttons, the x, y, z axis is supported along with a POV (or HAT), where the z axis
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* represents a throttle. In the future the joystick may support more buttons and
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* axises and other features. but this is a platform issue.
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*
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@ -59,22 +59,22 @@ public class Joystick {
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}
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/** Has the joystick been created? */
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private boolean created;
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private static boolean created;
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/** The joystick buttons status */
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private boolean[] buttons;
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private static boolean[] buttons;
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/** X position, range -1000 to 1000 */
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public int x = -1;
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public static int x = -1;
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/** Y position, range -1000 to 1000 */
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public int y = -1;
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public static int y = -1;
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/** Z position, range -1000 to 1000 */
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public int z = -1;
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public static int z = -1;
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/** Position of Point of View from -1 to 27000 (360 degrees) */
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public int pov;
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public static int pov;
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/** Constant specifying centered POV */
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public static final int POV_CENTER = -1;
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@ -92,14 +92,14 @@ public class Joystick {
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public static final int POV_WEST = 9000;
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/* Joystick capabilities */
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public int buttonCount = -1;
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public boolean hasZAxis = false;
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public boolean hasPOV = false;
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public static int buttonCount = -1;
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public static boolean hasZAxis = false;
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public static boolean hasPOV = false;
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/**
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* Joystick cannot be constructed.
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*/
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public Joystick() {
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private Joystick() {
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}
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/**
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@ -114,7 +114,7 @@ public class Joystick {
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* "Create" the joystick. The display must first have been created.
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* @throws Exception if the joystick could not be created for any reason
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*/
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public void create() throws Exception {
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public static void create() throws Exception {
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if (created) {
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return;
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}
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@ -128,7 +128,7 @@ public class Joystick {
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/**
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* "Destroy" the joystick
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*/
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public void destroy() {
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public static void destroy() {
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if (!created) {
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return;
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}
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@ -140,7 +140,7 @@ public class Joystick {
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/**
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* Polls the joystick.
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*/
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public void poll() {
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public static void poll() {
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assert created : "The joystick has not been created.";
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nPoll();
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}
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@ -152,7 +152,7 @@ public class Joystick {
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* @return true if the specified button is down
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* @see #getNumButtons()
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*/
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public boolean isButtonDown(int button) {
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public static boolean isButtonDown(int button) {
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assert created : "The joystick has not been created.";
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return buttons[button];
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}
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@ -160,19 +160,19 @@ public class Joystick {
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/**
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* Native method to poll the joystick
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*/
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private native void nPoll();
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private static native void nPoll();
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/**
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* Native method to create the joystick
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*
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* @return true if the joystick was created
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*/
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private native boolean nCreate();
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private static native boolean nCreate();
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/**
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* Native method the destroy the joystick
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*/
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private native void nDestroy();
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private static native void nDestroy();
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/**
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* Register fields with the native library
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@ -16,20 +16,17 @@ import org.lwjgl.input.Joystick;
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*/
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public class JoystickTest extends Panel {
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private Joystick joystick = null;
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private int counter = 0;
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public Thread animationThread;
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/** Creates a new instance of JoystickTest */
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public JoystickTest() {
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joystick = new Joystick();
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try {
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joystick.create();
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Joystick.create();
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} catch (Exception e) {
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e.printStackTrace();
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joystick = null;
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return;
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}
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animationThread = new Thread() {
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@ -58,48 +55,50 @@ public class JoystickTest extends Panel {
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int y = 100;
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int x = 100;
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if (joystick != null) {
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joystick.poll();
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Joystick.poll();
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g.setColor(Color.blue);
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g.drawString("Buttoncount: " + joystick.buttonCount, x, y);
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g.drawString("Buttoncount: " + Joystick.buttonCount, x, y);
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y += 20;
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g.drawString("-----------------------------------------------", x, y);
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y += 20;
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g.drawString("x : " + joystick.x, x, y);
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g.drawString("x : " + Joystick.x, x, y);
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y += 20;
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g.drawString("y : " + joystick.y, x, y);
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g.drawString("y : " + Joystick.y, x, y);
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y += 20;
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if(joystick.hasZAxis) {
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g.drawString("z : " + joystick.z, x, y);
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if(Joystick.hasZAxis) {
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g.drawString("z : " + Joystick.z, x, y);
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y += 20;
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}
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if(joystick.hasPOV) {
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g.drawString("pov: " + joystick.pov, x, y);
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if(Joystick.hasPOV) {
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g.drawString("pov: " + Joystick.pov, x, y);
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y += 20;
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}
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//paint buttons
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g.drawString("btn: ", x, y);
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x += g.getFontMetrics().stringWidth("btn: ");
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for(int i=0; i<joystick.buttonCount; i++) {
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if(joystick.isButtonDown(i)) {
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for(int i=0; i<Joystick.buttonCount; i++) {
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if(Joystick.isButtonDown(i)) {
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g.drawString(i + ", ", x, y);
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x+= 15;
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}
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}
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}
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}
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public void update(Graphics g) {
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paint(g);
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}
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public void disposing() {
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Joystick.destroy();
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}
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/**
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* @param args the command line arguments
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*/
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public static void main(String[] args) {
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final JoystickTest p = new JoystickTest();
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final Frame f = new Frame();
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f.setLayout(null);
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f.setSize(640, 480);
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@ -107,11 +106,11 @@ public class JoystickTest extends Panel {
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f.addWindowListener(new WindowAdapter() {
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public void windowClosing(WindowEvent we) {
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f.hide();
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p.disposing();
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f.dispose();
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}
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});
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JoystickTest p = new JoystickTest();
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p.setSize(640, 480);
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p.setLocation(0, 0);
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p.setBackground(Color.RED);
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@ -64,7 +64,6 @@ bool create_success; // bool used to determine successfull creati
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// Cached fields of Joystick.java
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jclass clsJoystick;
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jobject objJoystick;
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jfieldID fidButtonCount;
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jfieldID fidHasZAxis;
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jfieldID fidHasPOV;
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@ -83,9 +82,9 @@ void Shutdown();
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void CreateJoystick(LPCDIDEVICEINSTANCE lpddi);
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void SetupJoystick();
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void InitializeFields();
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void CacheFields();
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void UpdateFields();
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void SetCapabilities();
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void CacheFields(jobject obj);
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void PrintError(HRESULT error);
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/**
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@ -93,15 +92,16 @@ void PrintError(HRESULT error);
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_input_Joystick_initIDs(JNIEnv * env, jclass clazz) {
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environment = env;
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clsJoystick = clazz;
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/* Cache fields in Joystick */
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CacheFields();
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}
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/**
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* Called when the Joystick instance is to be created
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*/
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_input_Joystick_nCreate(JNIEnv *env, jobject obj) {
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/* Cache fields in Joystick */
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CacheFields(obj);
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_input_Joystick_nCreate(JNIEnv *env, jclass clazz) {
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// Create the DirectInput object.
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HRESULT hr;
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hr = DirectInputCreate(GetModuleHandle(NULL), DIRECTINPUT_VERSION, &lpDI, NULL);
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@ -145,7 +145,7 @@ JNIEXPORT jboolean JNICALL Java_org_lwjgl_input_Joystick_nCreate(JNIEnv *env, jo
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* Method: nDestroy
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_input_Joystick_nDestroy(JNIEnv *env, jobject obj) {
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JNIEXPORT void JNICALL Java_org_lwjgl_input_Joystick_nDestroy(JNIEnv *env, jclass clazz) {
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Shutdown();
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}
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@ -154,7 +154,7 @@ JNIEXPORT void JNICALL Java_org_lwjgl_input_Joystick_nDestroy(JNIEnv *env, jobje
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* Method: nPoll
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_input_Joystick_nPoll(JNIEnv * env, jobject obj) {
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JNIEXPORT void JNICALL Java_org_lwjgl_input_Joystick_nPoll(JNIEnv * env, jclass clazz) {
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HRESULT hRes;
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// poll the joystick to read the current state
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@ -184,11 +184,6 @@ void Shutdown() {
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lpDI->Release();
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lpDI = NULL;
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}
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// Delete are global reference to the Joystick
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if(objJoystick != NULL) {
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environment->DeleteGlobalRef(objJoystick);
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}
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}
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/**
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@ -325,7 +320,7 @@ void SetupJoystick() {
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void InitializeFields() {
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//set buttons array
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jbooleanArray buttonsArray = environment->NewBooleanArray(buttoncount);
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environment->SetObjectField(objJoystick, fidButtons, buttonsArray);
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environment->SetStaticObjectField(clsJoystick, fidButtons, buttonsArray);
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}
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/**
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@ -350,21 +345,21 @@ void UpdateFields() {
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}
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//axis's
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environment->SetIntField(objJoystick, fidX, js.lX);
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environment->SetIntField(objJoystick, fidY, js.lY);
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environment->SetStaticIntField(clsJoystick, fidX, js.lX);
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environment->SetStaticIntField(clsJoystick, fidY, js.lY);
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if(hasz) {
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environment->SetIntField(objJoystick, fidZ, js.lZ);
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environment->SetStaticIntField(clsJoystick, fidZ, js.lZ);
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}
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//buttons
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jbooleanArray buttonsArray = (jbooleanArray) environment->GetObjectField(objJoystick, fidButtons);
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jbooleanArray buttonsArray = (jbooleanArray) environment->GetStaticObjectField(clsJoystick, fidButtons);
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BYTE * buttons = (BYTE *) environment->GetPrimitiveArrayCritical(buttonsArray, NULL);
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memcpy(buttons, js.rgbButtons, 4);
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environment->ReleasePrimitiveArrayCritical(buttonsArray, buttons, 0);
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//pov
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if(haspov) {
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environment->SetIntField(objJoystick, fidPOV, js.rgdwPOV[0]);
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environment->SetStaticIntField(clsJoystick, fidPOV, js.rgdwPOV[0]);
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}
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}
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@ -373,30 +368,25 @@ void UpdateFields() {
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*/
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void SetCapabilities() {
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//set buttoncount
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environment->SetIntField(objJoystick, fidButtonCount, buttoncount);
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environment->SetStaticIntField(clsJoystick, fidButtonCount, buttoncount);
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//set z axis
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environment->SetIntField(objJoystick, fidHasZAxis, hasz);
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environment->SetStaticIntField(clsJoystick, fidHasZAxis, hasz);
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//set pov
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environment->SetIntField(objJoystick, fidHasPOV, haspov);
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environment->SetStaticIntField(clsJoystick, fidHasPOV, haspov);
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}
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/**
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* Caches the field ids for quicker access
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*/
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void CacheFields(jobject obj) {
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/* make certain that we're caching from a global object, and not a local */
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objJoystick = environment->NewGlobalRef(obj);
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clsJoystick = environment->GetObjectClass(objJoystick);
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/* cache fields */
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fidButtonCount = environment->GetFieldID(clsJoystick, "buttonCount", "I");
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fidHasZAxis = environment->GetFieldID(clsJoystick, "hasZAxis", "Z");
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fidHasPOV = environment->GetFieldID(clsJoystick, "hasPOV", "Z");
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fidButtons = environment->GetFieldID(clsJoystick, "buttons", "[Z");
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fidX = environment->GetFieldID(clsJoystick, "x", "I");
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fidY = environment->GetFieldID(clsJoystick, "y", "I");
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fidZ = environment->GetFieldID(clsJoystick, "z", "I");
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fidPOV = environment->GetFieldID(clsJoystick, "pov", "I");
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void CacheFields() {
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fidButtonCount = environment->GetStaticFieldID(clsJoystick, "buttonCount", "I");
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fidHasZAxis = environment->GetStaticFieldID(clsJoystick, "hasZAxis", "Z");
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fidHasPOV = environment->GetStaticFieldID(clsJoystick, "hasPOV", "Z");
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fidButtons = environment->GetStaticFieldID(clsJoystick, "buttons", "[Z");
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fidX = environment->GetStaticFieldID(clsJoystick, "x", "I");
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fidY = environment->GetStaticFieldID(clsJoystick, "y", "I");
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fidZ = environment->GetStaticFieldID(clsJoystick, "z", "I");
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fidPOV = environment->GetStaticFieldID(clsJoystick, "pov", "I");
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}
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