App 01 - Touch using CurrentTouch

--# Main
-- App 01 - Touch

-- This program demonstrates touch and touch events.

-- Bruce Elliott
-- April 2013


-- Use this function to perform your initial setup
function setup()
    -- Touch Demo
    -- When the iPad screen is touched the
    --  event is recorded. The data type
    -- touch is used to record the information
    -- generated. The global variable
    -- CurrentTouch can be used to recover
    -- that information
    -- Here the function myTouch() is used to
    -- clear the screen and display the data
    -- data updates quickly (immediately)
    -- If you watch status it starts at 0,
    -- changes and stays at 1,
    -- then displays 2 when touch stops
end

-- This function gets called once every frame
function draw()
    -- This sets a dark background color
    background(40, 40, 50)
    myTouch()
    -- This sets the line thickness
    strokeWidth(5)
end

function myTouch()
    if CurrentTouch.state > -1 then
       -- Clear the Output screen
        output.clear()
        -- Display CurrentTouch data
        print("touch id: "..CurrentTouch.id)
        print("touch x: "..CurrentTouch.x)
        print("touch y: "..CurrentTouch.y)
        print("touch prevx: "..CurrentTouch.prevX)
        print("touch prevx: "..CurrentTouch.prevY)
        print("touch deltax: "..CurrentTouch.deltaX)
        print("touch deltay: "..CurrentTouch.deltaY)
        print("touch state: "..CurrentTouch.state)
        print("touch tapcount: "..CurrentTouch.tapCount)
    end
end