Files
test/sexp_effects/effects/mirror.sexp
gilesb 6ceaa37ab6 Add composable ASCII art with per-cell effects and explicit effect loading
Implements ascii_fx_zone effect that allows applying arbitrary sexp effects
to each character cell via cell_effect lambdas. Each cell is rendered as a
small image that effects can operate on.

Key changes:
- New ascii_fx_zone effect with cell_effect parameter for per-cell transforms
- Zone context (row, col, lum, sat, hue, etc.) available in cell_effect lambdas
- Effects are now loaded explicitly from recipe declarations, not auto-loaded
- Added effects_registry to plan for explicit effect dependency tracking
- Updated effect definition syntax across all sexp effects
- New run_staged.py for executing staged recipes
- Example recipes demonstrating alternating rotation and blur/rgb_split patterns

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-19 21:58:05 +00:00

33 lines
890 B
Common Lisp

;; Mirror effect - mirrors half of image
(define-effect mirror
:params (
(mode :type string :default "left_right")
)
(let* ((w (width frame))
(h (height frame))
(hw (floor (/ w 2)))
(hh (floor (/ h 2))))
(cond
((= mode "left_right")
(let ((left (crop frame 0 0 hw h))
(result (copy frame)))
(paste result (flip-h left) hw 0)))
((= mode "right_left")
(let ((right (crop frame hw 0 hw h))
(result (copy frame)))
(paste result (flip-h right) 0 0)))
((= mode "top_bottom")
(let ((top (crop frame 0 0 w hh))
(result (copy frame)))
(paste result (flip-v top) 0 hh)))
((= mode "bottom_top")
(let ((bottom (crop frame 0 hh w hh))
(result (copy frame)))
(paste result (flip-v bottom) 0 0)))
(else frame))))