Time for action – calling game over

We will make sure that when a game over display screen pops up, any of our display objects that are currently in motion stop moving, and the event listeners are deactivated. Aside from the visual display of our game over screen, we'll be adding a sound notification that will also help to trigger the event. To end the game, perform the following steps:

1. Create a new local function called callGameOver() and place it after the setScore() function and before the drawBackground() function:

       local callGameOver = function()

2. Introduce the sound effects when the game over display pops up. Have gameIsActive set to false and pause the physics in the game:

         audio.play( gameOverSound )
         gameIsActive = false
         physics.pause()

3. Create a shade that overlays the current background:

         shade = display.newRect( 0, 0, 570, 320 )
         shade:setFillColor( 0, 0, 0 )
         shade.x = 240; shade.y = 160
         shade.alpha = 0  -- Getting shade ready to display at game...