Merge pull request #14354 from mrdoob/webvr

WebVRManager: Implemented getController() using the Gamepad API.

Author: mrdoob

src/renderers/webvr/WebVRManager.js

@@ -20,6 +20,7 @@ function WebVRManager( renderer ) {
 
 	var poseTarget = null;
 
+	var controllers = [];
 	var standingMatrix = new Matrix4();
 	var standingMatrixInverse = new Matrix4();
 
@@ -83,13 +84,108 @@ function WebVRManager( renderer ) {
 
 	//
 
+	var isTriggerPressed = false;
+
+	function findGamepad( id ) {
+
+		var gamepads = navigator.getGamepads && navigator.getGamepads();
+
+		for ( var i = 0, j = 0, l = gamepads.length; i < l; i ++ ) {
+
+			var gamepad = gamepads[ i ];
+
+			if ( gamepad && ( gamepad.id === 'Daydream Controller' ||
+				gamepad.id === 'Gear VR Controller' || gamepad.id === 'Oculus Go Controller' ||
+				gamepad.id === 'OpenVR Gamepad' || gamepad.id.startsWith( 'Oculus Touch' ) ||
+				gamepad.id.startsWith( 'Spatial Controller' ) ) ) {
+
+				if ( j === id ) return gamepad;
+
+				j ++;
+
+			}
+
+		}
+
+	}
+
+	function updateControllers() {
+
+		for ( var i = 0; i < controllers.length; i ++ ) {
+
+			var controller = controllers[ i ];
+
+			var gamepad = findGamepad( i );
+
+			if ( gamepad !== undefined && gamepad.pose !== undefined ) {
+
+				if ( gamepad.pose === null ) return;
+
+				//  Pose
+
+				var pose = gamepad.pose;
+
+				if ( pose.hasPosition === false ) controller.position.set( 0.2, - 0.6, - 0.05 );
+
+				if ( pose.position !== null ) controller.position.fromArray( pose.position );
+				if ( pose.orientation !== null ) controller.quaternion.fromArray( pose.orientation );
+				controller.matrix.compose( controller.position, controller.quaternion, controller.scale );
+				controller.matrix.premultiply( standingMatrix );
+				controller.matrix.decompose( controller.position, controller.quaternion, controller.scale );
+				controller.matrixWorldNeedsUpdate = true;
+				controller.visible = true;
+
+				//  Trigger
+
+				var buttonId = gamepad.id === 'Daydream Controller' ? 0 : 1;
+
+				if ( isTriggerPressed !== gamepad.buttons[ buttonId ].pressed ) {
+
+					isTriggerPressed = gamepad.buttons[ buttonId ].pressed;
+
+					if ( isTriggerPressed ) {
+
+						controller.dispatchEvent( { type: 'selectstart' } );
+
+					} else {
+
+						controller.dispatchEvent( { type: 'selectend' } );
+						controller.dispatchEvent( { type: 'select' } );
+
+					}
+
+				}
+
+			} else {
+
+				controller.visible = false;
+
+			}
+
+		}
+
+	}
+
+	//
+
 	this.enabled = false;
 	this.userHeight = 1.6;
 
 	this.getController = function ( id ) {
 
-		console.warn( 'WebVRManager: getController() not yet implemented.' );
-		return new Group();
+		var controller = controllers[ id ];
+
+		if ( controller === undefined ) {
+
+			controller = new Group();
+			controller.matrixAutoUpdate = false;
+			controller.visible = false;
+
+			controllers[ id ] = controller;
+
+		}
+
+		return controller;
 
 	};
 
@@ -231,6 +327,8 @@ function WebVRManager( renderer ) {
 
 		}
 
+		updateControllers();
+
 		return cameraVR;
 
 	};