Add gamepad controller support for the game

Author: mahesh.kk

.gitignore

@@ -0,0 +1 @@
+.DS_Store

bkcore.coffee/controllers/GamepadController.coffee

@@ -0,0 +1,40 @@
+###
+  GamepadController (Orientation + buttons) for touch devices
+
+  @class bkcore.GamepadController
+  @author Mahesh Kulkarni <http://twitter.com/maheshkk>
+###
+class GamepadController
+
+  @isCompatible: ->
+    return ('getGamepads' of navigator) or ('webkitGetGamepads' of navigator)
+
+  ###
+    Creates a new GamepadController
+  ###
+  constructor: (@buttonPressCallback) ->
+    @active = true
+    @leftStickArray = []
+    @rightStickArray = []
+
+  ###
+    @public
+  ###
+  updateAvailable: ->
+    return false if not @active
+    gamepads = if navigator.getGamepads then navigator.getGamepads() else navigator.webkitGetGamepads()
+    return false if not gamepads?[0]
+    gp = gamepads[0]
+    return if not gp.buttons? or not gp.axes?
+    @acceleration = gp.buttons[0]
+    @lstickx = gp.axes[0]
+    @ltrigger = gp.buttons[6]
+    @rtrigger = gp.buttons[7]
+    @select = gp.buttons[8]
+    @buttonPressCallback this
+    true
+
+exports = exports ? @
+exports.bkcore ||= {}
+exports.bkcore.controllers ||= {}
+exports.bkcore.controllers.GamepadController = GamepadController

bkcore.coffee/controllers/GamepadController.js

@@ -120,6 +120,7 @@ bkcore.hexgl.ShipControls = function(ctx)
 
 	this.touchController = null;
 	this.orientationController = null;
+	this.gamepadController = null
 
 	if(ctx.controlType == 1 && bkcore.controllers.TouchController.isCompatible())
 	{
@@ -136,7 +137,7 @@ bkcore.hexgl.ShipControls = function(ctx)
 					self.key.forward = true;
 			});
 	}
-	else if(ctx.controlType == 3 && bkcore.controllers.OrientationController.isCompatible())
+	else if(ctx.controlType == 4 && bkcore.controllers.OrientationController.isCompatible())
 	{
 		this.orientationController = new bkcore.controllers.OrientationController(
 			domElement, true,
@@ -151,6 +152,20 @@ bkcore.hexgl.ShipControls = function(ctx)
 					self.key.forward = true;
 			});
 	}
+	else if(ctx.controlType == 3 && bkcore.controllers.GamepadController.isCompatible())
+	{
+		this.gamepadController = new bkcore.controllers.GamepadController(
+      function(controller){
+        if (controller.select)
+          ctx.restart();
+        else
+          self.key.forward = controller.acceleration > 0;
+          self.key.ltrigger = controller.ltrigger > 0;
+          self.key.rtrigger = controller.rtrigger > 0;
+          self.key.left = controller.lstickx < -0.1;
+          self.key.right = controller.lstickx > 0.1;
+      });
+	}
 	else if(ctx.controlType == 2)
 	{
 		if(Leap == null)
@@ -376,26 +391,34 @@ bkcore.hexgl.ShipControls.prototype.update = function(dt)
 			angularAmount += this.orientationController.beta/45 * this.angularSpeed * dt;
 			rollAmount -= this.orientationController.beta/45 * this.rollAngle;
 		}
+		if(this.gamepadController != null && this.gamepadController.updateAvailable())
+		{
+			angularAmount -= this.gamepadController.lstickx * 0.2 * this.angularSpeed * dt;
+			rollAmount += this.gamepadController.lstickx * this.rollAngle;
+		}
 		if(this.leapBridge != null && this.leapBridge.hasHands)
 		{
 			angularAmount += this.leapBridge.palmNormal[0] * 2 * this.angularSpeed * dt;
 			this.speed += Math.max(0.0, (0.5 + this.leapBridge.palmNormal[2])) * 3 * this.thrust * dt;
 		}
+		else
+		{
+			if(this.key.left)
+			{
+				angularAmount += this.angularSpeed * dt;
+				rollAmount -= this.rollAngle;
+			}
+			if(this.key.right)
+			{
+				angularAmount -= this.angularSpeed * dt;
+				rollAmount += this.rollAngle;
+			}
+		}
 
 		if(this.key.forward)
 			this.speed += this.thrust * dt;
 		else
 			this.speed -= this.airResist * dt;
-		if(this.key.left)
-		{
-			angularAmount += this.angularSpeed * dt;
-			rollAmount -= this.rollAngle;
-		}
-		if(this.key.right)
-		{
-			angularAmount -= this.angularSpeed * dt;
-			rollAmount += this.rollAngle;
-		}
 		if(this.key.ltrigger)
 		{
 			if(this.key.left)

bkcore/hexgl/ShipControls.js

@@ -88,6 +88,7 @@
 
     <script src="bkcore.coffee/controllers/TouchController.js"></script>
     <script src="bkcore.coffee/controllers/OrientationController.js"></script>
+    <script src="bkcore.coffee/controllers/GamepadController.js"></script>
 
     <script src="bkcore/Timer.js"></script>
     <script src="bkcore/ImageData.js"></script>

css/help-3.png

@@ -36,7 +36,7 @@ init = (controlType, quality, platform, godmode) ->
 
 u = bkcore.Utils.getURLParameter
 s = [
-  ['controlType', ['KEYBOARD', 'TOUCH', 'LEAP MOTION CONTROLLER'], 0, 0, 'Controls: ']
+  ['controlType', ['KEYBOARD', 'TOUCH', 'LEAP MOTION CONTROLLER', 'GAMEPAD'], 0, 0, 'Controls: ']
   ['quality', ['LOW', 'MID', 'HIGH'], 2, 2, 'Quality: ']
   ['platform', ['DESKTOP', 'MOBILE'], 0, 0, 'Platform: ']
   ['godmode', ['OFF', 'ON'], 0, 1, 'Godmode: ']