/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.badlogic.gdx.controllers.gwt;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.controllers.Controller;
import com.badlogic.gdx.controllers.ControllerListener;
import com.badlogic.gdx.controllers.ControllerManager;
import com.badlogic.gdx.controllers.gwt.support.Gamepad;
import com.badlogic.gdx.controllers.gwt.support.GamepadSupport;
import com.badlogic.gdx.controllers.gwt.support.GamepadSupportListener;
import com.badlogic.gdx.utils.Array;
import com.badlogic.gdx.utils.IntMap;
import com.badlogic.gdx.utils.Pool;
import com.google.gwt.core.client.JsArrayNumber;
public class GwtControllers implements ControllerManager, GamepadSupportListener {
private final IntMap<GwtController> controllerMap = new IntMap<GwtController>();
private final Array<Controller> controllers = new Array<Controller>();
private final Array<ControllerListener> listeners = new Array<ControllerListener>();
private final Array<GwtControllerEvent> eventQueue = new Array<GwtControllerEvent>();
private final Pool<GwtControllerEvent> eventPool = new Pool<GwtControllerEvent>() {
@Override
protected GwtControllerEvent newObject () {
return new GwtControllerEvent();
}
};
public GwtControllers() {
GamepadSupport.init(this);
setupEventQueue();
}
public void setupEventQueue() {
new Runnable() {
@SuppressWarnings("synthetic-access")
@Override
public void run () {
synchronized(eventQueue) {
for(GwtControllerEvent event: eventQueue) {
switch(event.type) {
case GwtControllerEvent.CONNECTED:
controllers.add(event.controller);
for(ControllerListener listener: listeners) {
listener.connected(event.controller);
}
break;
case GwtControllerEvent.DISCONNECTED:
controllers.removeValue(event.controller, true);
for(ControllerListener listener: listeners) {
listener.disconnected(event.controller);
}
for(ControllerListener listener: event.controller.getListeners()) {
listener.disconnected(event.controller);
}
break;
case GwtControllerEvent.BUTTON_DOWN:
event.controller.buttons.put(event.code, event.amount);
for(ControllerListener listener: listeners) {
if(listener.buttonDown(event.controller, event.code)) break;
}
for(ControllerListener listener: event.controller.getListeners()) {
if(listener.buttonDown(event.controller, event.code)) break;
}
break;
case GwtControllerEvent.BUTTON_UP:
event.controller.buttons.remove(event.code, event.amount);
for(ControllerListener listener: listeners) {
if(listener.buttonUp(event.controller, event.code)) break;
}
for(ControllerListener listener: event.controller.getListeners()) {
if(listener.buttonUp(event.controller, event.code)) break;
}
break;
case GwtControllerEvent.AXIS:
event.controller.axes[event.code] = event.amount;
for(ControllerListener listener: listeners) {
if(listener.axisMoved(event.controller, event.code, event.amount)) break;
}
for(ControllerListener listener: event.controller.getListeners()) {
if(listener.axisMoved(event.controller, event.code, event.amount)) break;
}
break;
default:
}
}
eventPool.freeAll(eventQueue);
eventQueue.clear();
}
Gdx.app.postRunnable(this);
}
}.run();
}
@Override
public Array<Controller> getControllers() {
return controllers;
}
@Override
public void addListener(ControllerListener listener) {
synchronized(eventQueue) {
listeners.add(listener);
}
}
@Override
public void removeListener(ControllerListener listener) {
synchronized(eventQueue) {
listeners.removeValue(listener, true);
}
}
@Override
public void onGamepadConnected(int index) {
Gamepad gamepad = Gamepad.getGamepad(index);
GwtController controller = new GwtController(gamepad.getIndex(), gamepad.getId());
controllerMap.put(index, controller);
synchronized(eventQueue) {
GwtControllerEvent event = eventPool.obtain();
event.type = GwtControllerEvent.CONNECTED;
event.controller = controller;
eventQueue.add(event);
}
}
@Override
public void onGamepadDisconnected(int index) {
GwtController controller = controllerMap.remove(index);
if(controller != null) {
synchronized(eventQueue) {
GwtControllerEvent event = eventPool.obtain();
event.type = GwtControllerEvent.DISCONNECTED;
event.controller = controller;
eventQueue.add(event);
}
}
}
@Override
public void onGamepadUpdated(int index) {
Gamepad gamepad = Gamepad.getGamepad(index);
GwtController controller = controllerMap.get(index);
if (gamepad != null && controller != null) {
// Determine what changed
JsArrayNumber axes = gamepad.getAxes();
JsArrayNumber buttons = gamepad.getButtons();
synchronized(eventQueue) {
for (int i = 0, j = axes.length(); i < j; i++) {
float oldAxis = controller.getAxis(i);
float newAxis = (float) axes.get(i);
if (oldAxis != newAxis) {
GwtControllerEvent event = eventPool.obtain();
event.type = GwtControllerEvent.AXIS;
event.controller = controller;
event.code = i;
event.amount = newAxis;
eventQueue.add(event);
}
}
for (int i = 0, j = buttons.length(); i < j; i++) {
float oldButton = controller.getButtonAmount(i);
float newButton = (float) buttons.get(i);
if (oldButton != newButton) {
if ((oldButton < 0.5f && newButton < 0.5f) || (oldButton >= 0.5f && newButton >= 0.5f)) {
controller.buttons.put(i, newButton);
continue;
}
GwtControllerEvent event = eventPool.obtain();
event.type = newButton >= 0.5f ? GwtControllerEvent.BUTTON_DOWN : GwtControllerEvent.BUTTON_UP;
event.controller = controller;
event.code = i;
event.amount = newButton;
eventQueue.add(event);
}
}
}
}
}
@Override
public void clearListeners () {
listeners.clear();
}
@Override
public Array<ControllerListener> getListeners () {
return listeners;
}
}