David Gwilliam
b926b346ad
- Fix TerminalDisplay: add screen clear each frame (cursor home + erase down) - Fix CameraStage: use set_canvas_size instead of read-only viewport properties - Fix Glitch effect: preserve visible line lengths, remove cursor positioning - Fix Fade effect: return original line when fade=0 instead of empty string - Fix Noise effect: use input line length instead of terminal_width - Remove HUD effect from all presets (redundant with border FPS display) - Add regression tests for effect dimension stability - Add docs/ARCHITECTURE.md with Mermaid diagrams - Add mise tasks: diagram-ascii, diagram-validate, diagram-check - Move markdown docs to docs/ (ARCHITECTURE, Refactor, hardware specs) - Remove redundant requirements files (use pyproject.toml) - Add *.dot and *.png to .gitignore Closes #25
38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
import random
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from engine import config
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from engine.effects.types import EffectConfig, EffectContext, EffectPlugin
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from engine.terminal import C_DIM, G_DIM, G_LO, RST, W_GHOST
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class NoiseEffect(EffectPlugin):
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name = "noise"
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config = EffectConfig(enabled=True, intensity=0.15)
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def process(self, buf: list[str], ctx: EffectContext) -> list[str]:
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if not ctx.ticker_height:
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return buf
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result = list(buf)
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intensity = self.config.intensity
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probability = intensity * 0.15
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for r in range(len(result)):
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cy = ctx.scroll_cam + r
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if random.random() < probability:
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original_line = result[r]
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result[r] = self._generate_noise(len(original_line), cy)
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return result
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def _generate_noise(self, w: int, cy: int) -> str:
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d = random.choice([0.15, 0.25, 0.35, 0.12])
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return "".join(
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f"{random.choice([G_LO, G_DIM, C_DIM, W_GHOST])}"
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f"{random.choice(config.GLITCH + config.KATA)}{RST}"
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if random.random() < d
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else " "
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for _ in range(w)
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)
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def configure(self, config: EffectConfig) -> None:
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self.config = config
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