webvr js meetup initial commit

node_modules/three/examples/js/vr/ViveController.js

@@ -0,0 +1,128 @@
+/**
+ * @author mrdoob / http://mrdoob.com
+ * @author stewdio / http://stewd.io
+ */
+
+THREE.ViveController = function ( id ) {
+
+	THREE.Object3D.call( this );
+
+	var scope = this;
+	var gamepad;
+
+	var axes = [ 0, 0 ];
+	var thumbpadIsPressed = false;
+	var triggerIsPressed = false;
+	var gripsArePressed = false;
+	var menuIsPressed = false;
+
+	function findGamepad( id ) {
+
+		// Iterate across gamepads as Vive Controllers may not be
+		// in position 0 and 1.
+
+		var gamepads = navigator.getGamepads();
+
+		for ( var i = 0, j = 0; i < 4; i ++ ) {
+
+			var gamepad = gamepads[ i ];
+
+			if ( gamepad && ( gamepad.id === 'OpenVR Gamepad' || gamepad.id === 'Oculus Touch (Left)' || gamepad.id === 'Oculus Touch (Right)' ) ) {
+
+				if ( j === id ) return gamepad;
+
+				j ++;
+
+			}
+
+		}
+
+	}
+
+	this.matrixAutoUpdate = false;
+	this.standingMatrix = new THREE.Matrix4();
+
+	this.getGamepad = function () {
+
+		return gamepad;
+
+	};
+
+	this.getButtonState = function ( button ) {
+
+		if ( button === 'thumbpad' ) return thumbpadIsPressed;
+		if ( button === 'trigger' ) return triggerIsPressed;
+		if ( button === 'grips' ) return gripsArePressed;
+		if ( button === 'menu' ) return menuIsPressed;
+
+	};
+
+	this.update = function () {
+
+		gamepad = findGamepad( id );
+
+		if ( gamepad !== undefined && gamepad.pose !== undefined ) {
+
+			if ( gamepad.pose === null ) return; // No user action yet
+
+			//  Position and orientation.
+
+			var pose = gamepad.pose;
+
+			if ( pose.position !== null ) scope.position.fromArray( pose.position );
+			if ( pose.orientation !== null ) scope.quaternion.fromArray( pose.orientation );
+			scope.matrix.compose( scope.position, scope.quaternion, scope.scale );
+			scope.matrix.multiplyMatrices( scope.standingMatrix, scope.matrix );
+			scope.matrixWorldNeedsUpdate = true;
+			scope.visible = true;
+
+			//  Thumbpad and Buttons.
+
+			if ( axes[ 0 ] !== gamepad.axes[ 0 ] || axes[ 1 ] !== gamepad.axes[ 1 ] ) {
+
+				axes[ 0 ] = gamepad.axes[ 0 ]; //  X axis: -1 = Left, +1 = Right.
+				axes[ 1 ] = gamepad.axes[ 1 ]; //  Y axis: -1 = Bottom, +1 = Top.
+				scope.dispatchEvent( { type: 'axischanged', axes: axes } );
+
+			}
+
+			if ( thumbpadIsPressed !== gamepad.buttons[ 0 ].pressed ) {
+
+				thumbpadIsPressed = gamepad.buttons[ 0 ].pressed;
+				scope.dispatchEvent( { type: thumbpadIsPressed ? 'thumbpaddown' : 'thumbpadup' } );
+
+			}
+
+			if ( triggerIsPressed !== gamepad.buttons[ 1 ].pressed ) {
+
+				triggerIsPressed = gamepad.buttons[ 1 ].pressed;
+				scope.dispatchEvent( { type: triggerIsPressed ? 'triggerdown' : 'triggerup' } );
+
+			}
+
+			if ( gripsArePressed !== gamepad.buttons[ 2 ].pressed ) {
+
+				gripsArePressed = gamepad.buttons[ 2 ].pressed;
+				scope.dispatchEvent( { type: gripsArePressed ? 'gripsdown' : 'gripsup' } );
+
+			}
+
+			if ( menuIsPressed !== gamepad.buttons[ 3 ].pressed ) {
+
+				menuIsPressed = gamepad.buttons[ 3 ].pressed;
+				scope.dispatchEvent( { type: menuIsPressed ? 'menudown' : 'menuup' } );
+
+			}
+
+		} else {
+
+			scope.visible = false;
+
+		}
+
+	};
+
+};
+
+THREE.ViveController.prototype = Object.create( THREE.Object3D.prototype );
+THREE.ViveController.prototype.constructor = THREE.ViveController;