-- Setup collision filters
local Floor_filter = { categoryBits = 1, maskBits = 0 }
local InvisFloor_filter = { categoryBits = 2, maskBits = 0 }
local Block_filter = { categoryBits = 4, maskBits = 0 }
local Star_filter = { categoryBits = 8, maskBits = 2 }
local Sprite_filter = { categoryBits = 16, maskBits = 8 }
local Rock_filter = { categoryBits = 32, maskBits = 21 }
----

    -- Setup Invisible floor for Stars --
local invisFloor = display.newRect(124.6, 300, 490, 2)
    groupOne:insert( invisFloor )
        invisFloor.itemName = "invisFloor"
            physics.addBody( invisFloor, "static")

    -- Setup player sprite --
local Sprite = display.newImage ("Sprite.png")
    Sprite.x = 330
        Sprite.y = 290
            Sprite.itemName = "sprite"
        physics.addBody( Sprite, "static", { filter=Sprite_Filter } )
    groupOne:insert( Sprite )

    -- Setup Star and Points calling --
        local StarTime = 5000

function newStar( ) -- Create new stars
    if ( gameState == "Play" ) then
        local Star = display.newImage ("Star.png")
            Star.x = math.random (140 , 470)
                Star.y = 303
            Star.itemName = "Star"
        physics.addBody( Star, "kinematic")
        groupOne:insert( Star )
    end
end

-- Register timers
if ( gameState == "Play" ) then
    local StarSpawner = timer.performWithDelay( StarTime, newStar, 1 )
end

    Sprite:addEventListener( "collision", Sprite )

-- Check for Collisions
function Sprite:collision (event) -- Game Over!
    if event.other.itemName == "rock" then
        gameState = "Pause"
        groupOne:remove( Sprite )
        physics.pause() -- Pause physics engine
        GameOver.gameEnd( Points )
    end
if event.other.itemName == "Star" then -- Add points
    groupOne:remove( Star ) -- remove old star and reset star spawn timer
        Star = nil
            local StarSpawner = timer.performWithDelay( StarTime, newStar, 1 )
        updatePoints("add")
    end
end