I'm in the finishing stages of making my gravity guy game. However I need help with the obstacles. When the game is run you will see 3 blocks on the side. Those are the obstacles, I need help with making them scroll from right to left (so the player can dodge them), I also need help with making a random obstacle to be picks after one has scrolled. Please let me know if I'm not explicit enough, because I have no idea what to do.

Here's the code:


#coding: utf-8
from scene import *
import random

class MyScene (Scene):
    def setup(self):
        self.x = 100
        self.y = 0
        self.scr_h = 400
        self.scr_w = 218
        self.flr = 101 #floor
        self.g = 0.5 #gravity
        self.acel = 0
        self.grav = True
        self.lw = self.scr_h
        self.ms = 6 #max speed
        self.n = 6
        self.ex = self.scr_h - 32
        self.ey = self.flr
        self.etimer = 0.0
        self.box_h = 32
        self.box_2 = 0
        self.m = 32
        self.button = Button(Rect(self.size.w/2-250, self.size.h/2--58, 500, 35))
        self.button.background = Color(0,0.05,0.2)
        self.button.stroke = Color(0,0.05,0.2)
        self.button1 = Button(Rect(self.size.w/2-250, self.size.h/2-92, 500, 35))
        self.button1.background = Color(0,0.05,0.2)
        self.button1.stroke = Color(0,0.05,0.2)

  #reset
        self.pts = 0
        self.rtimer = 0

  #collisions
        self.dead = False
        pass

    def draw(self):
        background(0, 0.5, 1)
        stroke(255,0,0)
        self.button.draw()
        self.button1.draw()

  #text
        tint(0,0,0,1)
        if self.dead == True:
            text('You are DEAD', 'Arial', 12, 48, self.y+ 16, 5)

        if self.dead == False:
            self.pts += 1

        tint(1,1,1)
        text('Points: {}'.format(self.pts), x=self.size.w/3, y=self.size.h/3.5*3, font_size=40)
        text('You can click the ❎ at the\ntop right of the screen to exit.', x=self.size.w/2, y=self.size.h/11, font_size=20)

  #character
        fill(1,1,1)
        rect(self.x-40,self.y,32,32)

    #obstacles
        self.obstacle1=rect(self.ex,self.ey,32,self.box_h)
        self.obstacle2=rect(self.ex,self.ey+86,32,self.box_2--32)
        self.obstacle3=rect(self.ex,self.ey+43,32,self.box_2--32)

  # Touch input:
        if not self.grav:
            self.acel += 1


  # Physics
        if self.dead == False:
            self.y += self.acel

        if self.y < self.flr:
            self.y = self.flr
            self.acel = 0
        else:
            self.acel -= self.g

        if self.y > self.scr_w - 32:
            self.y = self.scr_w - 32
            self.acel = 0

        if self.acel > self.ms:
            self.acel = self.ms
        if self.acel < -self.ms:
            self.acel = -self.ms

    def touch_began(self, touch):
        self.grav = not self.grav

run(MyScene(), LANDSCAPE)

Thanks in advance!