Wrapper; Input; adding html5 gamepad support, still a few minor things to add (disconnect/reconnect like native) and initial event types for gamepad for native as well

lime/InputHandler.hx

@@ -74,6 +74,12 @@ class InputHandler {
 
     @:noCompletion public function update() {
 
+            //update any helper stuff
+        helper.update();
+
+            //remove any stale key pressed value
+            //unless it wasn't alive for a full frame yet,
+            //then flag it so that it may be
         for(_value in key_value_pressed.keys()){
 
             var _flag : Bool = key_value_pressed.get(_value);            
@@ -85,6 +91,9 @@ class InputHandler {
 
         } //each pressed_value
 
+            //remove any stale key released value
+            //unless it wasn't alive for a full frame yet,
+            //then flag it so that it may be
         for(_value in key_value_released.keys()){
 
             var _flag : Bool = key_value_released.get(_value);            
@@ -486,12 +495,77 @@ class InputHandler {
 
 //Gamepad
 
-    @:noCompletion public function lime_gamepadaxis(_event:Dynamic) : Void {
+    @:noCompletion public function lime_gamepadaxis( _event:Dynamic, ?_pass_through:Bool=false ) : Void {
+        
         if(lib.host.ongamepadaxis != null) {
-            lib.host.ongamepadaxis(_event);
+
+            var _gamepad_event = _event;
+
+            if(!_pass_through) {
+
+                _gamepad_event = {
+                    raw : _event,
+                    axis : _event.code,
+                    value : (_event.value / 32767),
+                    gamepad : _event.id
                 }
+
+            } //pass through
+
+            lib.host.ongamepadaxis( _gamepad_event );
+
+        } //lib.host.ongamepadaxis != null
+
     } //lime_gamepadaxis
 
+    @:noCompletion public function lime_gamepadbuttondown( _event:Dynamic, ?_pass_through:Bool=false ) : Void {
+        
+        if(lib.host.ongamepadbuttondown != null) {
+
+            var _gamepad_event = _event;
+
+            if(!_pass_through) {
+
+                _gamepad_event = {
+                    raw : _event,                        
+                    state : ButtonState.down,
+                    value : 0,
+                    button : _event.code,
+                    gamepad : _event.id
+                };
+
+            }
+
+            lib.host.ongamepadbuttondown( _gamepad_event );
+
+        }
+
+    } //lime_gamepadbuttondown
+
+    @:noCompletion public function lime_gamepadbuttonup( _event:Dynamic, ?_pass_through:Bool=false ) : Void {
+        
+        if(lib.host.ongamepadbuttonup != null) {
+            
+            var _gamepad_event = _event;
+
+            if(!_pass_through) {
+
+                _gamepad_event = {
+                    raw : _event,
+                    state : ButtonState.up,
+                    value : 1,
+                    button : _event.code,
+                    gamepad : _event.id
+                };
+
+            }
+
+            lib.host.ongamepadbuttonup( _gamepad_event );
+
+        }
+
+    } //lime_gamepadbuttonup
+
     @:noCompletion public function lime_gamepadball(_event:Dynamic) : Void {
         if(lib.host.ongamepadball != null) {
             lib.host.ongamepadball(_event);
@@ -504,18 +578,6 @@ class InputHandler {
         }
     } //lime_gamepadhat
 
-    @:noCompletion public function lime_gamepadbuttondown(_event:Dynamic) : Void {
-        if(lib.host.ongamepadbuttondown != null) {
-            lib.host.ongamepadbuttondown(_event);
-        }
-    } //lime_gamepadbuttondown
-
-    @:noCompletion public function lime_gamepadbuttonup(_event:Dynamic) : Void {
-        if(lib.host.ongamepadbuttonup != null) {
-            lib.host.ongamepadbuttonup(_event);
-        }
-    } //lime_gamepadbuttonup
-
     private static var efLeftDown = 0x0001;
     private static var efShiftDown = 0x0002;
     private static var efCtrlDown = 0x0004;
@@ -538,6 +600,11 @@ enum MouseState {
     up;
 }
 
+enum ButtonState {
+    down;
+    up;
+}
+
 enum MouseButton {
     move;
     left;
@@ -586,5 +653,21 @@ typedef MouseEvent = {
 
 typedef GamepadEvent = { 
     var raw : Dynamic;
+    var gamepad : Int;
+}
+
+typedef GamepadButtonEvent = { 
+    var raw : Dynamic;
+    var gamepad : Int;
+    var button : Int;
+    var value : Float;
+    var state : ButtonState;
+}
+
+typedef GamepadAxisEvent = { 
+    var raw : Dynamic;
+    var gamepad : Int;
+    var axis : Int;
+    var value : Float;
 }
 

lime/helpers/html5/InputHelper.hx

@@ -1,5 +1,9 @@
 package lime.helpers.html5;
 
+import lime.InputHandler.GamepadEvent;
+import lime.InputHandler.GamepadButtonEvent;
+import lime.InputHandler.GamepadAxisEvent;
+import lime.InputHandler.ButtonState;
 import lime.InputHandler.MouseButton;
 import lime.InputHandler.MouseState;
 import lime.RenderHandler.BrowserLike;
@@ -35,8 +39,197 @@ class InputHelper {
         js.Browser.document.addEventListener('keydown', on_keydown);
         js.Browser.document.addEventListener('keyup',   on_keyup);
 
+            //handle any gamepad information, if the browser supports it
+        startup_gamepads();
+
     } //startup
 
+    @:noCompletion public function update() {
+        if(gamepads_supported) {
+            poll_gamepads();
+        }
+    }
+
+    function fail_gamepads() {
+        gamepads_supported = false;
+        trace("lime : Gamepads are not supported in this browser :(");
+    }
+
+
+        //if gamepads are supported, the method to get them will 
+        //be stored in this variable for reuse
+    var gamepads_supported : Bool = false;
+
+    function startup_gamepads() {
+
+        active_gamepads = new Map();
+        gamepads_supported = (get_gamepad_list != null);
+
+    }
+
+    function poll_gamepads() {
+        
+        var list = get_gamepad_list();
+        if(list != null) {
+            for(i in 0 ... list.length) {
+                if( untyped list[i] != null ) {
+                    handle_gamepad( untyped list[i] );
+                }
+            }
+        }
+
+    } //poll_gamepads
+
+        //this will take some liberties for now
+        //because chrome and firefox share the same spec for 
+        //the most part and all future implementations should
+        //follow spec too. If the spec changes we can adjust if needed
+    var active_gamepads : Map<Int, HTML5Gamepad>;
+
+    function handle_gamepad( _gamepad : Dynamic ) {
+            
+            //disconnected gamepads we don't need
+        if(_gamepad == null) return;
+
+            //check if this gamepad exists already
+        if( !active_gamepads.exists( _gamepad.index ) ) {
+
+                //if not we add it to the list
+            active_gamepads.set( _gamepad.index, {
+                id : _gamepad.id,
+                index : _gamepad.index,                
+                axes : cast _gamepad.axes,                
+                buttons : cast _gamepad.buttons,                
+                timestamp : _gamepad.timestamp
+            });
+
+                //fire an on connected event
+            //  :todo:
+
+        } else {
+            
+                //found in the list so we can update it if anything changed
+            var gamepad = active_gamepads.get(_gamepad.index);
+                //but only if the timestamp differs
+            if(gamepad.timestamp != _gamepad.timestamp) {
+
+                    //update the id if it changed
+                if(gamepad.id != _gamepad.id) { gamepad.id = _gamepad.id; }
+                    //update the timestamp
+                gamepad.timestamp = _gamepad.timestamp;
+
+                    //we store the list of changed indices
+                    //so we can call the handler functions with each
+                var axes_changed : Array<Int> = []; 
+                var buttons_changed : Array<Int> = []; 
+                    //the last known values
+                var last_axes = gamepad.axes;
+                var last_buttons = gamepad.buttons;
+                    
+                    //the new known values                
+                var new_axes : Array<Float> = cast _gamepad.axes;
+                var new_buttons : Array<Int> = cast _gamepad.buttons;
+
+                    //check for axes changes
+                var axis_index : Int = 0;
+                for(axis in new_axes) {
+                    
+                    if(axis != last_axes[axis_index]) {
+                        axes_changed.push(axis_index);
+                        gamepad.axes[axis_index] = axis;
+                    }
+
+                    axis_index++;
+
+                } //axis in new_axes
+
+                    //check for button changes
+                var button_index : Int = 0;
+                for(button in new_buttons) {
+                    
+                    if(button != last_buttons[button_index]) {
+                        buttons_changed.push(button_index);
+                        gamepad.buttons[button_index] = button;
+                    }
+
+                    button_index++;
+
+                } //button in new_buttons
+
+
+                    //now forward any axis changes to the wrapper
+                for(index in axes_changed) {
+                    
+                    lib.input.lime_gamepadaxis({
+                        raw : gamepad,                        
+                        axis : index,
+                        value : new_axes[index],
+                        gamepad : gamepad.index
+                    }, true);
+
+                } //for each axis changed
+
+                    //then forward any button changes to the wrapper
+                for(index in buttons_changed) {
+                    
+                    var _state = (new_buttons[index] == 0) ? ButtonState.up : ButtonState.down;
+                    var _gamepad_event : GamepadButtonEvent = {
+                        raw : gamepad,                        
+                        state : _state,
+                        value : new_buttons[index],
+                        button : index,
+                        gamepad : gamepad.index
+                    };
+
+                    if(_state == ButtonState.up) {
+                        lib.input.lime_gamepadbuttonup( _gamepad_event, true );
+                    } else {
+                        lib.input.lime_gamepadbuttondown( _gamepad_event, true );
+                    }                    
+
+                } //for each button change
+
+            } //timestamp changed
+
+        } //exists
+
+    } //handle_gamepad
+
+        //It's really early for gamepads in browser, 
+        // but we can still support them where they exist
+    function get_gamepad_list() : Dynamic {
+
+                //Modernizr is used to detect gamepad support
+            var modernizr = untyped js.Browser.window.Modernizr;
+            if(modernizr != null) {
+
+                if(modernizr.gamepads == true) {
+
+                        //try official api first
+                    if( untyped js.Browser.navigator.getGamepads != null ) {
+                        return untyped js.Browser.navigator.getGamepads();
+                    }
+
+                        //try newer webkit GetGamepads() function
+                    if( untyped js.Browser.navigator.webkitGetGamepads != null ) {
+                        return untyped js.Browser.navigator.webkitGetGamepads();
+                    }
+
+                        //if we make it here we failed support so fail out
+                    fail_gamepads();
+
+                } else {
+
+                    fail_gamepads();
+
+                }
+
+            } //modernizr != null
+
+        return null;
+
+    } //get_gamepad_list
+
     function on_contextmenu( _event:Dynamic ) {
         
         _event.preventDefault();
@@ -122,10 +315,12 @@ class InputHelper {
         switch(lib.render.browser) {
 
             case BrowserLike.chrome, BrowserLike.safari, BrowserLike.opera:
+
                 deltaX = untyped _event.webkitMovementX;
                 deltaY = untyped _event.webkitMovementY;
 
             case BrowserLike.firefox:
+
                 deltaX = untyped _event.mozMovementX;
                 deltaY = untyped _event.mozMovementY;
 
@@ -205,3 +400,12 @@ class InputHelper {
     } //on_keyup
 
 } //InputHelper
+
+
+typedef HTML5Gamepad = {
+    axes : Array<Float>,
+    index : Int,
+    buttons : Array<Int>,
+    id : String,
+    timestamp : Float
+}

lime/helpers/native/InputHelper.hx

@@ -12,7 +12,11 @@ class InputHelper {
 
     } //new
 
-    public function startup() {
+    @:noCompletion public function startup() {
+        
+    }
+    
+    @:noCompletion public function update() {
         
     }
 

templates/html5/template/index.html

@@ -21,6 +21,7 @@
         </style>
 
         <script type="text/javascript" src="./lib/soundmanager/soundmanager2-nodebug-jsmin.js"></script>        
+        <script type="text/javascript" src="./lib/modernizr.js"></script>
 
     </head>