blocksexample.py

blocksexample.py

from scene import *
import json
import sound

background_objects_json_str = '''
[{"x": 500, "y": 62, "w": 50, "h": 80, "img": "plc:Dirt_Block"},
{"x": 500, "y": 100, "w": 50, "h": 80, "img": "plc:Dirt_Block"},
{"x": 500, "y": 150, "w": 50, "h": 50, "img": "plc:Grass_Block"}]
'''

class GameEnvironment(object):
  def __init__(self):
    self.background_speed = 0.3


class MyScene (Scene):
  def setup(self):
    self.env = GameEnvironment()
    self.ground = Node(parent=self)
    groundimage = 'plf:Ground_SandCenter'
    w = SpriteNode(groundimage).size.w
    h = SpriteNode(groundimage).size.h
    x = 0
    while x <= self.size.w + w:
      tile = SpriteNode(groundimage, position=(x, h/2))
      self.ground.add_child(tile)
      x += w
    self.background_color = 'midnightblue'
    self.background_objects = []
    json_object = json.loads(background_objects_json_str)
    for x in json_object:
      item = SpriteNode(x['img'])
      item.anchor_point = (0.5, 0)
      item.position = (x['x'], x['y'])
      item.size = (x['w'], x['h'])
      self.add_child(item)
      self.background_objects.append(item)
    

  def update(self):
    for dirtblock in self.background_objects:
      pos = dirtblock.position
      pos.x -= self.env.background_speed
      dirtblock.position = pos

  def touch_began(self, touch):
    pass

run(MyScene())