pybeamshow/effects/movingwave.py
2023-02-24 18:21:40 +01:00

107 lines
3.3 KiB
Python

from typing import Any, Generator, Optional, Union
import pygame as pg
from effects.effect import MovingEffect
from util.color import Colors, rainbow_surface
from util.transform import PositionGenerator
import math
class MovingWave(MovingEffect):
def __init__(
self,
bounds: pg.Rect,
color: Union[pg.Color, Generator[pg.Color, None, None]],
wave_count: float = 2,
wave_height: int = 0,
thickness: int = 10,
hue: int = 0,
color_inc: int = 1,
start_phase: int = 0,
scroll_speed: float = 5,
mover: Optional[PositionGenerator] = None,
*groups: pg.sprite.Group
) -> None:
image = pg.Surface(bounds.size)
image.fill(Colors.Black)
image.set_colorkey(Colors.Black)
super().__init__(image, bounds, mover, *groups)
self.subrect = pg.rect.Rect(0, 0, bounds.width, bounds.height)
self.wave_height = wave_height or bounds.height
self.bounds = bounds
self.scroll_speed = scroll_speed
self.rainbow = pg.Surface((bounds.width, self.wave_height))
rainbow_surface(self.rainbow, "h", hue, color_inc)
self.wave_image = pg.Surface(
(bounds.width * (wave_count + 1) / wave_count, self.wave_height)
)
self.wave_image.fill(Colors.Black)
self.wave_image.set_colorkey(Colors.Black)
y_halfheight = self.wave_image.get_height() // 2
points = [
(
x,
y_halfheight
+ (y_halfheight - thickness)
* math.sin(
math.pi
* (
start_phase / 180
+ x / self.wave_image.get_width() * 2 * (wave_count + 1)
)
),
)
for x in range(self.wave_image.get_width())
]
pg.draw.lines(self.wave_image, Colors.White, False, points, width=thickness)
pg.draw.lines(
self.wave_image,
Colors.White,
False,
[(x + 2, y) for x, y in points],
width=thickness,
)
self.update(is_beat=False)
def update(self, *args: Any, **kwargs: Any) -> None:
self.image.fill(Colors.Black)
# rainbow_surface(self.image)
pos = self.mover.send(
((self.bounds.width, self.wave_height), kwargs["is_beat"])
)
# pg.draw.rect(self.image, Colors.Black, (0, 0, self.bounds.width, pos[1]))
# pg.draw.rect(
# self.image,
# Colors.Black,
# (
# 0,
# pos[1] + self.wave_height,
# self.bounds.width,
# self.bounds.height - pos[1] + self.wave_height,
# ),
# )
self.image.blit(self.rainbow, pos)
self.image.blit(self.wave_image, pos, self.subrect, pg.BLEND_MULT)
self.subrect.move_ip(self.scroll_speed, 0)
if self.subrect.right >= self.wave_image.get_rect().right:
self.subrect.left = 0
# pg.draw.ellipse(
# self.image,
# next(self.color),
# ((0, 0), self.rect.size),
# )
# self.ticks += int(self.velocity / 180 * math.pi)
# self.velocity = random.randint(self.min_velocity, self.max_velocity)