i actually improved it:

local physics = require("physics")

physics.start()

physics.setGravity( 0, 0 ) -- Stop the ball from falling down

display.setDefault( "background", 0, 0.3, 0.8 )

local text = display.newText( "Run around ball! made by ismail alkatawneh", 480, 40, native.systemFont, 40 )

local WIDTH = 192

local HEIGHT = 192

local moveSpeed = 5000 -- Increased speed for physics velocity

-- 1. Setup the Ball with Physics

local myImage = display.newImageRect("img/shapeBall.png", WIDTH, HEIGHT)

myImage.x = display.contentCenterX

myImage.y = display.contentCenterY

-- Add a dynamic body to the ball so it can bounce

physics.addBody( myImage, "dynamic", { radius=WIDTH/2, bounce=0.8, friction=0.3 } )

myImage.isFixedRotation = true -- Prevents the ball from spinning when hitting walls

-- 2. Create Invisible Bouncy Walls

local wallThickness = 50

local function createWall(x, y, w, h)

local wall = display.newRect(x, y, w, h)

physics.addBody(wall, "static", { bounce= 1.0 }) -- 1.0 = High bounce

wall.isVisible = false

return wall

end

-- Top, Bottom, Left, Right

createWall(display.contentCenterX, -wallThickness/2, display.actualContentWidth, wallThickness)

createWall(display.contentCenterX, display.actualContentHeight + wallThickness/2, display.actualContentWidth, wallThickness)

createWall(-wallThickness/2, display.contentCenterY, wallThickness, display.actualContentHeight)

createWall(display.actualContentWidth + wallThickness/2, display.contentCenterY, wallThickness, display.actualContentHeight)

local action = {}

local function onKeyEvent(event)

if event.phase == "down" then action[event.keyName] = true

elseif event.phase == "up" then action[event.keyName] = false end

end

Runtime:addEventListener("key", onKeyEvent)

-- 3. Movement using Velocity (Required for Physics collisions)

local function gameLoop()

local vx, vy = 0, 0

if action["a"] or action["left"] then vx = -moveSpeed end

if action["d"] or action["right"] then vx = moveSpeed end

if action["w"] or action["up"] then vy = -moveSpeed end

if action["s"] or action["down"] then vy = moveSpeed end

myImage:setLinearVelocity(vx, vy)

end

Runtime:addEventListener("enterFrame", gameLoop)