helpers.py

import os, pygame

scr_size = (width,height) = (900,150)
FPS = 60
gravity = 0.6

black = (0,0,0)
white = (255,255,255)
background_col = (235,235,235)

dino_position = width/15

def load_image(
  name,
  sizex=-1,
  sizey=-1,
  colorkey=None,
  ):

  fullname = os.path.join('sprites', name)
  image = pygame.image.load(fullname)
  image = image.convert()
  if colorkey is not None:
    if colorkey is -1:
      colorkey = image.get_at((0, 0))
    image.set_colorkey(colorkey, pygame.RLEACCEL)

  if sizex != -1 or sizey != -1:
    image = pygame.transform.scale(image, (sizex, sizey))

  return (image, image.get_rect())

def load_sprite_sheet(
    sheetname,
    nx,
    ny,
    scalex = -1,
    scaley = -1,
    colorkey = None,
    ):
  fullname = os.path.join('sprites',sheetname)
  sheet = pygame.image.load(fullname)
  sheet = sheet.convert()

  sheet_rect = sheet.get_rect()

  sprites = []

  sizex = sheet_rect.width/nx
  sizey = sheet_rect.height/ny

  for i in range(0,ny):
    for j in range(0,nx):
      rect = pygame.Rect((j*sizex,i*sizey,sizex,sizey))
      image = pygame.Surface(rect.size)
      image = image.convert()
      image.blit(sheet,(0,0),rect)

      if colorkey is not None:
        if colorkey is -1:
          colorkey = image.get_at((0,0))
        image.set_colorkey(colorkey,pygame.RLEACCEL)

      if scalex != -1 or scaley != -1:
        image = pygame.transform.scale(image,(scalex,scaley))

      sprites.append(image)

  sprite_rect = sprites[0].get_rect()

  return sprites,sprite_rect

def extractDigits(number):
  if number > -1:
    digits = []
    i = 0
    while(number/10 != 0):
      digits.append(number%10)
      number = int(number/10)

    digits.append(number%10)
    for i in range(len(digits),5):
      digits.append(0)
    digits.reverse()
    return digits