forked from genewildish/Mainline
David Gwilliam
ef98add0c5
Major changes: - Pipeline architecture with capability-based dependency resolution - Effects plugin system with performance monitoring - Display abstraction with multiple backends (terminal, null, websocket) - Camera system for viewport scrolling - Sensor framework for real-time input - Command-and-control system via ntfy - WebSocket display backend for browser clients - Comprehensive test suite and documentation Issue #48: ADR for preset scripting language included This commit consolidates 110 individual commits into a single feature integration that can be reviewed and tested before further refinement.
83 lines
2.6 KiB
Python
83 lines
2.6 KiB
Python
"""Gradient coloring for rendered block characters.
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Provides left-to-right and complementary gradient effects for terminal display.
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"""
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from engine.terminal import RST
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# Left → right: white-hot leading edge fades to near-black
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GRAD_COLS = [
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"\033[1;38;5;231m", # white
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"\033[1;38;5;195m", # pale cyan-white
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"\033[38;5;123m", # bright cyan
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"\033[38;5;118m", # bright lime
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"\033[38;5;82m", # lime
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"\033[38;5;46m", # bright green
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"\033[38;5;40m", # green
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"\033[38;5;34m", # medium green
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"\033[38;5;28m", # dark green
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"\033[38;5;22m", # deep green
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"\033[2;38;5;22m", # dim deep green
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"\033[2;38;5;235m", # near black
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]
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# Complementary sweep for queue messages (opposite hue family from ticker greens)
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MSG_GRAD_COLS = [
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"\033[1;38;5;231m", # white
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"\033[1;38;5;225m", # pale pink-white
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"\033[38;5;219m", # bright pink
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"\033[38;5;213m", # hot pink
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"\033[38;5;207m", # magenta
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"\033[38;5;201m", # bright magenta
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"\033[38;5;165m", # orchid-red
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"\033[38;5;161m", # ruby-magenta
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"\033[38;5;125m", # dark magenta
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"\033[38;5;89m", # deep maroon-magenta
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"\033[2;38;5;89m", # dim deep maroon-magenta
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"\033[2;38;5;235m", # near black
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]
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def lr_gradient(rows, offset=0.0, grad_cols=None):
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"""Color each non-space block character with a shifting left-to-right gradient.
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Args:
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rows: List of text lines with block characters
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offset: Gradient offset (0.0-1.0) for animation
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grad_cols: List of ANSI color codes (default: GRAD_COLS)
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Returns:
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List of lines with gradient coloring applied
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"""
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cols = grad_cols or GRAD_COLS
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n = len(cols)
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max_x = max((len(r.rstrip()) for r in rows if r.strip()), default=1)
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out = []
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for row in rows:
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if not row.strip():
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out.append(row)
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continue
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buf = []
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for x, ch in enumerate(row):
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if ch == " ":
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buf.append(" ")
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else:
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shifted = (x / max(max_x - 1, 1) + offset) % 1.0
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idx = min(round(shifted * (n - 1)), n - 1)
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buf.append(f"{cols[idx]}{ch}{RST}")
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out.append("".join(buf))
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return out
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def lr_gradient_opposite(rows, offset=0.0):
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"""Complementary (opposite wheel) gradient used for queue message panels.
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Args:
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rows: List of text lines with block characters
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offset: Gradient offset (0.0-1.0) for animation
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Returns:
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List of lines with complementary gradient coloring applied
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"""
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return lr_gradient(rows, offset, MSG_GRAD_COLS)
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