69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
from typing import Any
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import pygame as pg
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from effects.effect import Effect, Colors, transform_bounce
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import random
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import math
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from typing import Union, Generator
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class BouncingSpot(Effect):
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def __init__(
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self,
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bounds: pg.Rect,
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color: Union[pg.Color, Generator[pg.Color, None, None]],
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sizes=(10, 100),
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velocity=(1, 10),
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x_factor=(0.1, 1),
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y_factor=(0.1, 1),
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*groups: pg.sprite.Group
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) -> None:
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self.min_size = sizes[0]
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self.max_size = sizes[1]
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self.min_velocity = velocity[0]
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self.max_velocity = velocity[1]
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self.velocity = random.randint(self.min_velocity, self.max_velocity)
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self.ticks = random.randint(0, 360)
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self.color = color
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size = (math.sin(self.ticks) / 2 + 0.5) * (
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self.max_size - self.min_size
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) + self.min_size
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image = pg.Surface((self.max_size, self.max_size))
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image.fill(Colors.Black)
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image.set_colorkey(Colors.Black)
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super().__init__(
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image=image,
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rect=pg.Rect(
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bounds.centerx - size / 2,
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bounds.centery - size / 2,
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size,
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size,
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),
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*groups
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)
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self.bounds = bounds
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self.bouncer = transform_bounce(
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bounds=bounds, velocity=velocity, x_factor=x_factor, y_factor=y_factor
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)
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next(self.bouncer)
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self.update()
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def update(self, *args: Any, **kwargs: Any) -> None:
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new_size = (math.sin(self.ticks) / 2 + 0.5) * (
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self.max_size - self.min_size
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) + self.min_size
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new_scale = new_size - self.rect.width
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self.rect.inflate_ip(new_scale, new_scale)
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self.rect.center = self.bouncer.send(self.rect.size)
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self.image.fill(Colors.Black)
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pg.draw.ellipse(
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self.image,
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self.color if isinstance(self.color, pg.Color) else next(self.color),
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((0, 0), self.rect.size),
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)
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self.ticks += self.velocity / 180 * math.pi
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self.velocity = random.randint(self.min_velocity, self.max_velocity)
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