A-Engine stage code design

{info}
  BG_MUSIC_ID = 1
  STAGE_LENGTH = 1000
  STAGE_WIDTH = 1000
  STAGE_HEIGHT = 1000
  BACKGROUND_COLOR = 0, 0, 0 #black

  [img]
    tile[dir = "bg1/tiles/ground.png"] #0
    tile[dir = "bg1/tiles/sky.png"] #1
    sheet[dir="bg1/clouds.png" w=200 h=100 col=2 row=1] #2
  [/img]

  [mdl]
    obj[dir = "bg1/objects/tree_model.obj" scale = 2]
  [/mdl]

  [camera]
   cam[
   # id for objects to access the camera
    id = 0 # 0 is the default camera which view's rendered to screen

   # initial camera settings
    init_position = 30, 30, 30
    look_at = 30, 30, 100
    top_direction = 0, 1, 0

   # camera movement in space
    x_acc = 10
    y_acc = 10
    z_acc = 10
    r_acc = 10

    max_x_vel = 30
    max_y_vel = 30
    max_z_vel = 30
    max_r_vel = 30

    max_x_position = 1000
    min_x_position = -20
    max_y_position = 1000
    min_y_position = -20
    max_z_position = 1000
    min_z_position = -20


   # camera rotation in space
    max_x_angle = 30
    max_y_angle = 30
    max_r_angle = 30

    rotation_x_vel = 10
    rotation_y_vel = 10
    rotation_r_vel = 10

    angular_x_acc = 1
    angular_y_acc = 1
    angular_r_acc = 1
    max_x_angular_vel = 2
    max_y_angular_vel = 2
    max_r_angular_vel = 2

   # camera zooming settings
    init_zoom_scale = 1
    zoom_acc = 0.05
    max_zoom_vel = 0.2
    max_zoom_scale = 2
    min_zoom_scale = 0.5

   ]
  [/camera]


{/info}

[directional_light] # yellowish sun light
  position = 0, 1000, 0 ambient_color=120,120,120 diffuse_color=180,180,180 specular_color=255,255,255 direction_vector=1,-1,0 #down-right direction
[/directional_light]

[entity] # ground
  img = 0 position = -10,0,-20  x_repeat = 50 y_repeat = 50
  set_transformation[rotate_angle=90 rotate_vector=1,0,0] # rotate on the x-axis; in the z-axis
[/entity]

[entity] # sky
  img = 1 position = -10,-2000,-50  x_repeat = 50 y_repeat = 50 x_parallax_factor=0 y_parallax_factor=0 z_parallax_factor=0 #won't move with the camera
[/entity]

# 10 trees which appears in random positions in the stage
[entity] # trees
  mdl = 0 position = 10, 0, -200  z_offset = &random{-50, 50} x_offset = &random{-50, 50} x_recreation_interval = 500 max_entities = 10
  set_transformation[rotate_angle=&random{0, 360} rotate_vector=0,1,0]
[/entity]

# 3 clouds at a time, once they pass the screen, a new one comes from teh side
[entity] # clouds
  img = &random{0,1},2 position = -100,500,-1 y_offset=&random{-60, 60} x_offset=&random{-40, 40} x_parallax_factor=0.2 y_parallax_factor = 0.1 z_parallax_factor=0.07
  x_recreation_interval=400  max_entities = 3 x_vel=10 restart_x_position_distance=1200
[/entity]