PinmikPanik/gamedata/objects/ingame/skies.py

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from gamedata.objects.base import BaseObject
import math
class Skies(BaseObject):
def __init__(self,game,basesky="skies/base.png",nightsky="skies/night.png",daysky="skies/day.png"):
super().__init__(0,0,game,game.DISPLAY_WIDTH,game.DISPLAY_HEIGHT)
size = [game.DISPLAY_WIDTH,game.DISPLAY_HEIGHT]
self.basesky = game.pygame.transform.scale(game.sprite_lib[basesky],size)
self.nightsky = game.pygame.transform.scale(game.sprite_lib[nightsky],size)
self.daysky = game.pygame.transform.scale(game.sprite_lib[daysky],size)
self.blackrect = game.pygame.Surface(size)
self.blackrect.fill([0]*3)
self.speed = 0.02
self.timeelapsed = 0
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self.depth = -3
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self.blackrectalpha = 0.5
def step(self):
self.timeelapsed+=self.game.dt
self.cosvalue = math.cos(self.timeelapsed*self.speed)
def draw(self):
self.game.window.blit(self.basesky,[0,0])
if self.cosvalue<0:
self.nightsky.set_alpha(-self.cosvalue*255)
self.game.window.blit(self.nightsky,[0,0])
else:
self.daysky.set_alpha(self.cosvalue*255)
self.game.window.blit(self.daysky,[0,0])
def afterdraw(self):
if self.cosvalue<0:
self.blackrect.set_alpha(-self.cosvalue*255*self.blackrectalpha)
self.game.realwindow.blit(self.blackrect,[0,0])