how to create swipe controls in corona - unity3d

Question

I am trying to create a game with Corona, but I can't figure out how to make swipe controls. I want to make a character that can move along x, -x, y, -y depending on which direction you swipe. any advice is needed because I'm lost. This code currently uses buttons to move the player when the button is press the player moves in that direction. I would like to change the button press to a swipe. The move events are at the bottom, and the button press events are in the middle.
local backdrop = display.setDefault("background", 1, 1, 1)
local physics = require("physics")
physics.start()
local square = display.newRect( 0, 0, 5, 5 )
--print(square)
_W = display.contentWidth; -- Get the width of the screen
_H = display.contentHeight; -- Get the height of the screen
motionDown = 0;
motionUp = 0;
motionRight = 0;
motionLeft = 0;
motionSquare = 5
speed = 4
local left = display.newRect(0,0,_W/2,_H/1.19)
left.x = _W/4.5; left.y = _H/2;
local right = display.newRect(0,0,_W/2,_H/1.19)
right.x = _W/1.25; right.y = _H/2;
local top = display.newRect(0,0,_W,_H/5.5)
top.x = _W/2; top.y =0;
local bottem = display.newRect(0,0,_W,_H/5.5)
bottem.x = _W/2; bottem.y =_H;
player = display.newImage("player.png", display.contentCenterX, display.contentCenterY)
player.x = math.random(10,_W-10)
player.y = math.random(10,_H-10)
player:toFront(player)
physics.addBody( player, "static" )
function left:tap() --Left
motionDown = 0;
motionUp = 0;
motionRight = 0;
motionLeft = -speed;
local square = display.newRect( 0, 0, 5, 5 )
square.strokeWidth = 3
square:setFillColor( 0 )
square:setStrokeColor( 0, 0, 0 )
square.x = player.x + 10 ; square.y = player.y;
local function moveSquare (event)
square.x = square.x + motionSquare;
end
Runtime:addEventListener("enterFrame", moveSquare)
return square
end
left:addEventListener("tap",left)
square = left:tap()
function right:tap() --Right
motionDown = 0;
motionUp = 0;
motionLeft = 0;
motionRight = speed;
local square = display.newRect( 0, 0, 5, 5 )
square.strokeWidth = 3
square:setFillColor( 0 )
square:setStrokeColor( 0, 0, 0 )
square.x = player.x - 10 ; square.y = player.y;
local function moveSquare (event)
square.x = square.x - motionSquare;
end
Runtime:addEventListener("enterFrame", moveSquare)
return square
end
right:addEventListener("tap",right)
square = right:tap()
function top:tap() --Top
motionDown = 0;
motionRight = 0;
motionLeft = 0;
motionUp = -speed;
local left = display.newRect(0,0,5,5)
local square = display.newRect( 0, 0, 5, 5 )
square.strokeWidth = 3
square:setFillColor( 0 )
square:setStrokeColor( 0, 0, 0 )
square.x = player.x ; square.y = player.y + 10;
local function moveSquare (event)
square.y = square.y + motionSquare;
end
Runtime:addEventListener("enterFrame", moveSquare)
return square
end
top:addEventListener("tap",top)
square = top:tap()
function bottem:tap(event) --Bottem
motionRight = 0;
motionUp = 0;
motionLeft = 0;
motionDown = speed;
local square = display.newRect( 0, 0, 5, 5 )
square.strokeWidth = 3
square:setFillColor( 0 )
square:setStrokeColor( 0, 0, 0 )
square.x = player.x ; square.y = player.y - 10;
local function moveSquare (event)
square.y = square.y - motionSquare;
end
Runtime:addEventListener("enterFrame", moveSquare)
return square
end
bottem:addEventListener("tap",bottem)
square = bottem:tap()
-- Move character
local function movePlayer (event)
player.x = player.x + motionRight;
if player.x > display.contentWidth then player.x = 0
end
end
Runtime:addEventListener("enterFrame", movePlayer)
local function movePlayer (event)
player.x = player.x + motionLeft;
if player.x < 0 then player.x = display.contentWidth
end
end
Runtime:addEventListener("enterFrame", movePlayer)
local function movePlayer (event)
player.y = player.y + motionUp;
if player.y > display.contentHeight then player.y = 0
end
end
Runtime:addEventListener("enterFrame", movePlayer)
local function movePlayer (event)
player.y = player.y + motionDown;
if player.y < 0 then player.y = display.contentHeight
end
end
Runtime:addEventListener("enterFrame", movePlayer)
local function moveSquare (event)
square.y = square.y + motionSquare;
if player.y < 0 then player.y = display.contentHeight
end
end
Runtime:addEventListener("enterFrame", moveSquare)

Answer 1

Did you already find a solution for this? I already answered a similar question before, I will use the same example:
local function globalTouchHandler(event)
local swipeLength = math.abs(event.x - event.xStart)
print(event.phase, swipeLength)
local t = event.target
local phase = event.phase
if (phase == "began") then
elseif (phase == "moved") then
elseif (phase == "ended" or phase == "cancelled") then
if (event.xStart > event.x and swipeLength > 50) then
-- left
elseif (event.xStart < event.x and swipeLength > 50) then
-- right
end
if (event.y < event.yStart and swipeLength > 50) then
-- up
end
end
end
Runtime:addEventListener("touch",globalTouchHandler)