messing with custom spritepack in Codify

gistfile1.lua

watch("t")
watch("r")
watch("s")
watch("aa")

-- Use this function to perform your initial setup
function setup()
    origin = vec2(1,0)
    w2 = WIDTH/2
    h2 = HEIGHT/2
    v1= vec2(0,-1)
    v2= vec2(0,1)
    aa= v1:angleBetween(v2)
end

-- This function gets called once every frame
function draw()
    background(63, 86, 106, 255)
    t = vec2(CurrentTouch.x-w2, CurrentTouch.y-w2)
    stroke(255, 0, 21, 255)
    strokeWidth(5)
    -- line(0,0,CurrentTouch.x,CurrentTouch.y)
    r = math.deg(origin:angleBetween(t))-90
    translate(w2, h2)
    rotate(r)
    s=CurrentTouch.state
    if (s == BEGAN) then
        sound("shoot")
    end
    if (s ~= ENDED) then
        line(0,0,0,1000)
    end
    sprite("Test:Su-37K_new")
end