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--
-- testscreen1.lua
--
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local storyboard = require( "storyboard" )
local scene = storyboard.newScene()

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-- BEGINNING OF YOUR IMPLEMENTATION
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require("physics")
physics.start()
physics.pause()
--physics.setDrawMode("hybrid")

gameOn = false


local module = require "module"


--local lines = module.lines
--local line_number = module.line_number
--local line_width = module.line_width
--local prev_x, prev_y = module.prev_x, module.prev_y
--local maxLines = 5
--local maxDist = 400
--local dist = module.dist
--local mathSqrt = module.mathSqrt

local dist = 0
local maxDist = 400




local drawLine = module.drawLine

local gameWin = module.gameWin

local gameState = module.gameState




-- Called when the scene's view does not exist:
function scene:createScene( event )
    local screenGroup = self.view



    local ball = module.spawnBall(30, 50)

    local goal = module.createGoal(100, 300)



    local wall = module.createWall( 0, 150, 450, 14, 1)

    local wall2 = module.createWall( 200, 300, 400, 10)

    local arrow = module.createArrow()

    screenGroup:insert( arrow )
    screenGroup:insert( ball )
    screenGroup:insert( goal )
    screenGroup:insert( wall )
    screenGroup:insert( wall2 )

    local changeGravity = module.changeGravity


    screenGroup[3]:addEventListener("tap", gameState)
    arrow:addEventListener("tap", changeGravity)




end


-- Called immediately after scene has moved onscreen:
function scene:enterScene( event )

    local drawLineWrapper = function(e)
        --if gameOn == false then
            if e.phase == "began" then
                prev_x = e.x
                prev_y = e.y
            elseif e.phase == "moved" then
                if dist < maxDist then

                    dist_x = e.x - prev_x
                    dist_y = e.y - prev_y

                    dist = dist + mathSqrt(dist_x*dist_x + dist_y*dist_y)
                    print(dist)

                    drawLine(prev_x, prev_y, dist_x, dist_y)

                    prev_x = e.x
                    prev_y = e.y


                end
            elseif e.phase == "ended" then
            end
        --end

    end

    Runtime:addEventListener("touch", drawLineWrapper)

    Runtime:addEventListener("collision", gameWin)


    -- remove previous scene's view
    --storyboard.purgeScene( "storyboard.lastScene" )
    --storyboard.lastScene =



end


-- Called when scene is about to move offscreen:
function scene:exitScene( event )

    lines = {}



    -- remove touch listener for image
    -- image:removeEventListener( "touch", image )


end


-- Called prior to the removal of scene's "view" (display group)
function scene:destroyScene( event )

    print( "((destroying scene 1's view))" )
end

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-- END OF YOUR IMPLEMENTATION
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-- "createScene" event is dispatched if scene's view does not exist
scene:addEventListener( "createScene", scene )

-- "enterScene" event is dispatched whenever scene transition has finished
scene:addEventListener( "enterScene", scene )

-- "exitScene" event is dispatched before next scene's transition begins
scene:addEventListener( "exitScene", scene )

-- "destroyScene" event is dispatched before view is unloaded, which can be
-- automatically unloaded in low memory situations, or explicitly via a call to
-- storyboard.purgeScene() or storyboard.removeScene().
scene:addEventListener( "destroyScene", scene )

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return scene