Platform bros Codea

--# Main
-- PlatformBros

-- Use this function to perform your initial setup
function setup()

    ground = 100
    x = 100
    y = ground + 25
    velocity = 0
    gravity = -900

    speed = 200
    onGround = false

    platforms = {}

    addPlatform(0, 200, ground)

    local sx1 = 200
    local sx2 = 300
    local sy = ground
    for i = 0,100 do
        addPlatform(sx1, sx2, sy)
        sx1 = sx2 + math.random(100, 150)
        sx2 = sx1 + math.random(50, 150)
        sy = sy + math.random(-150, 150)
    end

end

function addPlatform(x1, x2, y)
    table.insert(platforms, Platform(x1, x2, y))
end

-- This function gets called once every frame
function draw()

    translate(-x  + 250, -y + 250)

    -- This sets a dark background color
    background(40, 40, 50)

    -- This sets the line thickness
    strokeWidth(5)

    -- Do your drawing here

    sprite("Planet Cute:Character Boy",x,y+50,100)
    x = x + DeltaTime * speed

    onGround = false
    for k,v in pairs(platforms) do
        v:draw()

        if x > v.x1 - 25 and x < v.x2 + 25 and y >= v.y and y + DeltaTime * velocity <= v.y then
            y = v.y
            velocity = 0
            onGround = true
        end
    end

    if not onGround then
        y = y + DeltaTime * velocity
        velocity = velocity + DeltaTime * gravity
    end


end

function jump()
    if onGround then
        velocity = velocity + 500
    end
end

function touched(touch)
    if touch.state == BEGAN then
        jump()
    end
end


--# Platform
Platform = class()

function Platform:init(x1, x2, y)
    -- you can accept and set parameters here
    self.x1 = x1
    self.x2 = x2
    self.y = y
end

function Platform:draw()
    -- Codea does not automatically call this method
    stroke(255, 235, 0, 255)
    line(self.x1, self.y, self.x2, self.y)
end