49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
from gamedata.objects.base import BaseObject
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class Particle(BaseObject):
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def __init__(self,game,sprites,posx,posy,velx=0,vely=0,modvelx=0,modvely=0,flipx=False,flipy=False,fps=15):
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super().__init__(posx,posy,game)
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self.vel = [velx,vely]
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self.mod = [modvelx,modvely]
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self.timer = game.lib.Timer(1/fps) # Les particules s'animent en 15 FPS par défaut
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self.sprites = []
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self.offsets = []
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for i in sprites:
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self.sprites.append(game.pygame.transform.flip(i,flipx,flipy))
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w,h = i.get_size()
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self.offsets.append([w/2,h/2])
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self.alpha = 1
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self.depth = 6
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def step(self):
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game = self.game
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for j in range(2):
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self.rect[j]+=self.vel[j]*game.dt*60
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self.vel[j]+=self.mod[j]*game.dt*60
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self.timer.tick(game.dt)
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if self.timer.getloops()>=len(self.sprites): # Je me supprimme une fois l'animation finie
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game.gameloop.delid(self.id)
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self.alpha = max(1-(((self.timer.getloops()+1-self.timer.getratio())/len(self.sprites)))**3,0)
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def draw(self):
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game = self.game
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spriteindex = self.timer.getloops()
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posx,posy = self.rect[:2]
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offx,offy = self.offsets[spriteindex]
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pos = posx-offx-game.globals["camerax"],posy-offy-game.globals["cameray"]
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self.sprites[spriteindex].set_alpha(self.alpha*255)
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game.window.blit(self.sprites[spriteindex],pos)
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self.sprites[spriteindex].set_alpha(255)
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