Files
sideline/engine/effects/plugins/noise.py
David Gwilliam a95b24a246 feat(effects): add entropy parameter to effect plugins
- Add entropy field to EffectConfig (0.0 = calm, 1.0 = chaotic)
- Provide compute_entropy() method in EffectContext for dynamic scoring
- Update Fade, Firehose, Glitch, Noise plugin defaults with entropy values
- Enables finer control: intensity (strength) vs entropy (randomness)

This separates deterministic effect strength from probabilistic chaos, allowing more expressive control in UI panel and presets.

Fixes #32
2026-03-18 12:19:26 -07:00

38 lines
1.2 KiB
Python

import random
from engine import config
from engine.effects.types import EffectConfig, EffectContext, EffectPlugin
from engine.terminal import C_DIM, G_DIM, G_LO, RST, W_GHOST
class NoiseEffect(EffectPlugin):
name = "noise"
config = EffectConfig(enabled=True, intensity=0.15, entropy=0.4)
def process(self, buf: list[str], ctx: EffectContext) -> list[str]:
if not ctx.ticker_height:
return buf
result = list(buf)
intensity = self.config.intensity
probability = intensity * 0.15
for r in range(len(result)):
cy = ctx.scroll_cam + r
if random.random() < probability:
original_line = result[r]
result[r] = self._generate_noise(len(original_line), cy)
return result
def _generate_noise(self, w: int, cy: int) -> str:
d = random.choice([0.15, 0.25, 0.35, 0.12])
return "".join(
f"{random.choice([G_LO, G_DIM, C_DIM, W_GHOST])}"
f"{random.choice(config.GLITCH + config.KATA)}{RST}"
if random.random() < d
else " "
for _ in range(w)
)
def configure(self, config: EffectConfig) -> None:
self.config = config