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
54 lines
1.9 KiB
Python
54 lines
1.9 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, DIM, G_DIM, G_LO, RST
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class GlitchEffect(EffectPlugin):
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name = "glitch"
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config = EffectConfig(enabled=True, intensity=1.0)
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def process(self, buf: list[str], ctx: EffectContext) -> list[str]:
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if not buf:
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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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glitch_prob = 0.32 + min(0.9, ctx.mic_excess * 0.16)
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glitch_prob = glitch_prob * intensity
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n_hits = 4 + int(ctx.mic_excess / 2)
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n_hits = int(n_hits * intensity)
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if random.random() < glitch_prob:
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# Store original visible lengths before any modifications
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# Strip ANSI codes to get visible length
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import re
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ansi_pattern = re.compile(r"\x1b\[[0-9;]*[a-zA-Z]")
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original_lengths = [len(ansi_pattern.sub("", line)) for line in result]
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for _ in range(min(n_hits, len(result))):
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gi = random.randint(0, len(result) - 1)
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original_line = result[gi]
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target_len = original_lengths[gi] # Use stored original length
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glitch_bar = self._glitch_bar(target_len)
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result[gi] = glitch_bar
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return result
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def _glitch_bar(self, target_len: int) -> str:
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c = random.choice(["░", "▒", "─", "\xc2"])
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n = random.randint(3, max(3, target_len // 2))
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o = random.randint(0, max(0, target_len - n))
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glitch_chars = c * n
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trailing_spaces = target_len - o - n
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trailing_spaces = max(0, trailing_spaces)
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glitch_part = f"{G_LO}{DIM}" + glitch_chars + RST
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result = " " * o + glitch_part + " " * trailing_spaces
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return result
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def configure(self, config: EffectConfig) -> None:
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self.config = config
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