Update to Esplora example

Added Mouse.press to Esplora Joystick Mouse example

libraries/Esplora/examples/Beginners/EsploraJoystickMouse/EsploraJoystickMouse.ino

@@ -1,23 +1,27 @@
 /*
   Esplora Joystick Mouse
- 
+
  This  sketch shows you how to read the joystick and use it to control the movement
  of the cursor on your computer.  You're making your Esplora into a mouse!
- 
+
  WARNING: this sketch will take over your mouse movement. If you lose control
  of your mouse do the following:
  1) unplug the Esplora.
  2) open the EsploraBlink sketch
  3) hold the reset button down while plugging your Esplora back in
  4) while holding reset, click "Upload"
  5) when you see the message "Done compiling", release the reset button.
- 
+
  This will stop your Esplora from controlling your mouse while you upload a sketch
  that doesn't take control of the mouse.
- 
+
  Created on 22 Dec 2012
  by Tom Igoe
+ Updated 8 March 2014
+ by Scott Fitzgerald
  
+ http://arduino.cc/en/Reference/EsploraReadJoystickSwitch
+
  This example is in the public domain.
  */
 
@@ -27,7 +31,7 @@ void setup()
 {
   Serial.begin(9600);       // initialize serial communication with your computer
   Mouse.begin();            // take control of the mouse
-} 
+}
 
 void loop()
 {
@@ -41,10 +45,16 @@ void loop()
   Serial.print("\tButton: ");                  // print a tab character and a label for the button
   Serial.print(button);                        // print the button value
 
-  int mouseX = map( xValue,-512, 512, 10, -10);  // map the X value to a range of movement for the mouse X
-  int mouseY = map( yValue,-512, 512, -10, 10);  // map the Y value to a range of movement for the mouse Y
+  int mouseX = map(xValue, -512, 512, 10, -10);  // map the X value to a range of movement for the mouse X
+  int mouseY = map(yValue, -512, 512, -10, 10);  // map the Y value to a range of movement for the mouse Y
   Mouse.move(mouseX, mouseY, 0);                 // move the mouse
-
+
+  if (button == 0) {                           // if the joystick button is pressed
+    Mouse.press();                             // send a mouse click
+  } else {
+    Mouse.release();                           // if it's not pressed, release the mouse button 
+  }
+
   delay(10);                                  // a short delay before moving again
 }