Show input/output labels next to ports on custom component chips,
and persist internal gate state between evaluations so latches and
flip-flops retain their values correctly.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Major fixes for custom components when used in the main circuit:
- Add outputValues[] array for multi-output component gates, so each
output port carries its own independent value
- readSourcePort() reads the correct port value from source gates
instead of always reading gate.value
- evaluateComponent() now uses iterative fixed-point evaluation
(matching main evaluateAll) instead of a simple 10-pass loop
- Store inputIds/outputIds in component definition for consistent
port-to-gate mapping across save/load
- Renderer reads per-port values for connection color and port glow
- Added debug logs for component save and evaluation
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Double-click any INPUT, OUTPUT, or CLOCK gate to assign a custom label.
Labels are shown inside the gate and used in waveform viewer instead of
generic IN_0/OUT_0 names. Example circuits now ship with meaningful
labels (S, R, D, EN, Q, Q̅, CLK).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Lower component editor overlay z-index from 105 to 90 so toolbar
dropdown menus (z-index 150) appear on top of it.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace single-pass recursive evaluation with iterative fixed-point
evaluation that runs multiple passes until all gate values stabilize.
Crucially, gate values are NO LONGER reset to 0 before evaluation,
which preserves latch/flip-flop memory state.
Add console logs for toggle, wire, and evaluation stability debugging.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add 4 example circuits accessible from a new toolbar dropdown:
- SR Flip-Flop (NOR) — basic set-reset latch
- SR Flip-Flop (NAND) — active-low variant
- D Latch (1-bit Memory) — gated latch with enable
- D Flip-Flop (Master-Slave) — edge-triggered with CLK
Each example shows name + description in the dropdown and loads
the full circuit with proper gate placement and wiring.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
recordSample() (triggered by user INPUT toggle) now only advances
timeStep when the simulation is stopped. When sim is running, it
records at the current timeStep without advancing it, so the clock's
regular tick cadence is never stolen by manual interactions.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace setInterval with requestAnimationFrame loop that tracks elapsed
time via performance.now(). Clock ticks now fire based on real time
rather than assuming perfect interval spacing, so user interactions
(toggling inputs, dragging gates) no longer cause the clock to stutter
or pause.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace horizontal toolbar sections with dropdown buttons (I/O, Gates,
Components). Each opens a dropdown menu on click, keeping the toolbar
clean and compact. Dropdowns close on outside click or after selecting
a gate.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Redesign toolbar sections to use horizontal button rows instead of
vertical stacking. Fix component placement by attaching click handlers
directly to dynamically created buttons and passing correct gate object
shape to getComponentWidth/Height.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Redesigned toolbar with I/O, Gates, and Components sections
- Component editor: sub-canvas mode to design reusable chips
- Save/Cancel with main circuit state preservation
- Components persist in localStorage
- Custom components render as purple chips with dynamic I/O ports
- Component evaluation simulates internal circuit as black box
- Toolbar height increased to 56px for section labels
- All height references updated consistently
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- INPUT/CLOCK gates can now be dragged (click-without-move = toggle,
click-and-drag = move). Uses 4px movement threshold.
- Waveform only records samples on intentional actions (INPUT toggle,
manual step, simulation tick), not on gate placement/movement/connections.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Puzzle panel now shifts canvas and waveform viewer right (340px) instead of
overlapping them, using body class toggle and CSS transitions
- Canvas resize accounts for sidebar width
- Progress (completed/unlocked levels, custom components) persists in localStorage
- Level cards refresh on each panel open to reflect current progress
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add progressive puzzle mode alongside the existing sandbox:
- 8 levels from basic gates to 2-bit adder
- Truth table verification with pass/fail feedback
- Gate restrictions per level
- Custom components system (save circuits as reusable chips)
- Save/load circuits as JSON
- Level selection sidebar with difficulty ratings
- Mode toggle: Sandbox (free play) vs Puzzle (guided levels)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Restores the real-time ms-based waveform that correctly reflects
clock speed in wave width. Keeps the always-follow auto-scroll fix.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- timeStep increments by 1 per tick (not by simSpeed ms)
- waveZoom = pixels per step directly (zoom changes wave width)
- Speed control only changes real-time interval between ticks
- Auto-scroll always follows latest data regardless of zoom level
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Each simulation tick now advances timeStep by 1 instead of by simSpeed ms.
waveZoom directly controls pixels per step, so changing clock speed
(the real-time interval) doesn't affect visual wave width, but zooming does.
This matches GTKWave behavior where the x-axis represents clock cycles.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- CLOCK gate auto-toggles 0→1→0 during simulation
- Run/Stop button in waveform toolbar
- Adjustable speed (50ms to 2000ms per tick)
- Click CLOCK to toggle manually when sim is stopped
- Waveform auto-opens when sim starts
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
