David Gwilliam
bd4b146c02
- Fix import sorting (isort) across all engine modules - Fix SIM105 try-except-pass patterns (contextlib.suppress) - Fix nested with statements in tests - Fix unused loop variables Run 'uv run pytest' to verify tests still pass.
134 lines
4.2 KiB
Python
134 lines
4.2 KiB
Python
"""
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Visual effects: noise, glitch, fade, ANSI-aware truncation, firehose, headline pool.
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Depends on: config, terminal, sources.
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"""
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import random
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from datetime import datetime
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from engine import config
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from engine.sources import FEEDS, POETRY_SOURCES
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from engine.terminal import C_DIM, DIM, G_DIM, G_LO, RST, W_GHOST
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def noise(w):
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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 glitch_bar(w):
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c = random.choice(["░", "▒", "─", "╌"])
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n = random.randint(3, w // 2)
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o = random.randint(0, w - n)
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return " " * o + f"{G_LO}{DIM}" + c * n + RST
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def fade_line(s, fade):
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"""Dissolve a rendered line by probabilistically dropping characters."""
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if fade >= 1.0:
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return s
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if fade <= 0.0:
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return ''
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result = []
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i = 0
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while i < len(s):
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if s[i] == '\033' and i + 1 < len(s) and s[i + 1] == '[':
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j = i + 2
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while j < len(s) and not s[j].isalpha():
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j += 1
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result.append(s[i:j + 1])
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i = j + 1
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elif s[i] == ' ':
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result.append(' ')
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i += 1
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else:
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result.append(s[i] if random.random() < fade else ' ')
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i += 1
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return ''.join(result)
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def vis_trunc(s, w):
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"""Truncate string to visual width w, skipping ANSI escape codes."""
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result = []
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vw = 0
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i = 0
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while i < len(s):
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if vw >= w:
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break
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if s[i] == '\033' and i + 1 < len(s) and s[i + 1] == '[':
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j = i + 2
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while j < len(s) and not s[j].isalpha():
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j += 1
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result.append(s[i:j + 1])
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i = j + 1
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else:
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result.append(s[i])
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vw += 1
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i += 1
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return ''.join(result)
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def next_headline(pool, items, seen):
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"""Pull the next unique headline from pool, refilling as needed."""
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while True:
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if not pool:
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pool.extend(items)
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random.shuffle(pool)
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seen.clear()
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title, src, ts = pool.pop()
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sig = title.lower().strip()
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if sig not in seen:
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seen.add(sig)
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return title, src, ts
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def firehose_line(items, w):
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"""Generate one line of rapidly cycling firehose content."""
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r = random.random()
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if r < 0.35:
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# Raw headline text
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title, src, ts = random.choice(items)
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text = title[:w - 1]
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color = random.choice([G_LO, G_DIM, W_GHOST, C_DIM])
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return f"{color}{text}{RST}"
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elif r < 0.55:
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# Dense glitch noise
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d = random.choice([0.45, 0.55, 0.65, 0.75])
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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 else " "
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for _ in range(w)
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)
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elif r < 0.78:
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# Status / program output
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sources = FEEDS if config.MODE == 'news' else POETRY_SOURCES
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src = random.choice(list(sources.keys()))
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msgs = [
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f" SIGNAL :: {src} :: {datetime.now().strftime('%H:%M:%S.%f')[:-3]}",
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f" ░░ FEED ACTIVE :: {src}",
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f" >> DECODE 0x{random.randint(0x1000, 0xFFFF):04X} :: {src[:24]}",
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f" ▒▒ ACQUIRE :: {random.choice(['TCP', 'UDP', 'RSS', 'ATOM', 'XML'])} :: {src}",
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f" {''.join(random.choice(config.KATA) for _ in range(3))} STRM "
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f"{random.randint(0, 255):02X}:{random.randint(0, 255):02X}",
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]
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text = random.choice(msgs)[:w - 1]
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color = random.choice([G_LO, G_DIM, W_GHOST])
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return f"{color}{text}{RST}"
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else:
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# Headline fragment with glitch prefix
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title, _, _ = random.choice(items)
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start = random.randint(0, max(0, len(title) - 20))
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frag = title[start:start + random.randint(10, 35)]
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pad = random.randint(0, max(0, w - len(frag) - 8))
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gp = ''.join(random.choice(config.GLITCH) for _ in range(random.randint(1, 3)))
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text = (' ' * pad + gp + ' ' + frag)[:w - 1]
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color = random.choice([G_LO, C_DIM, W_GHOST])
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return f"{color}{text}{RST}"
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