This is a simulator for various Cellular Automata made with HTML, CSS, and JavaScript.
When in draw mode, place cells by clicking on the grid with the primary mouse button. Change states with the menu next to the draw button, and "auto" switches between states 0 and 1.
When in move mode, navigate by clicking and dragging the grid.
When in select mode, select an area by clicking and dragging the edges.
There are several other features included in dropdown labeled Other Actions:
- Select All selects the entire region containing the current pattern.
- Fit View positions the grid so the entire pattern is visible.
- Copy saves a pattern which can be pasted.
- Cut copies then clears an area.
- Paste places a copied pattern onto the grid, which can be clicked and dragged by the cursor.
- Randomize sets the state of cells in the selected area to state 1 or 0 randomly.
- Clear sets all the cells in a area to state 0.
- Invert switches the state of cells in a selected area.
- Set Marker will place a marker on top of the selected area or pattern to be pasted which can be used to setup searches.
- Delete Marker will remove the selected marker.
One can also Undo changes, Redo changes, and Reset the pattern to how it was before it was played.
- enter to start/stop
- n to play next generation
- wasd Keys to navigate
- ] to zoom in
- [ to zoom out
- 1 to enter draw mode
- 2 to enter move mode
- 3 to enter select mode
- x to cut to the internal clipboard
- c to copy to the internal clipboard
- v to paste from the internal clipboard
- ctrl-c to copy to the system clipboard
- ctrl-v to paste from the system clipboard
- z to undo
- z and Shift to redo
- t to reset the pattern
- r to randomize the selected area or rotate the paste area clockwise
- shift-r rotate the paste area counter-clockwise
- k to clear
- i to invert states 0 and 1
- m to set a marker
- delete to delete a selected marker
- shift-s select the entire pattern
- f to fit the window to the pattern or flip the paste area horizontally
- shift-f to fit the window to the pattern or flip the paste area vertically
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The clipboard slots are the storage space used by copy, cut, paste, and a few other features. It shows which pattern is being used for the features listed previously. Selecting the last slot of creates a new slot which can be used to store patterns.
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Enable Grid Lines draws a grid of lines across the pattern, and can be disabled for minor performance gains.
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Prevent Strobing in B0 Rules switches the color of the background state to prevent the area surrounding the pattern from flashing rapidly. With or without this setting, certain patterns can still contain flashing images.
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Enable Debugging Visuals shows the underlying quadtree data structure of the simulation, as well as information about the internal hashtable.
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Pause simulation when user resets grid does what it says, otherwise the simulation continues to run after reset by the user.
- Density of Live Cells sets the probability of a cell being state 1 when randomized
These options can be used to assist with manual searches or create fully automated searches. After each generation the program reads all the lines from top to bottom, and performs the listed action if the conditions are met.
Vertical space between saved patterns defines how many empty lines are inserted before each additional saved pattern's RLE.
Allow user reset to trigger search actions will conditionally perform any search actions which have "Reset" as a condition.
The actions include:
- Reset resets the simulation to it's initial state.
- Shift moves the provided area, and if a paste area is active, pastes the pattern.
- Randomize randomizes the provided area.
- Save adds the pattern's RLE to the box at the bottom.
- Generate Salvo produces a salvo of ships. To set it up input the minimum repeat time in generations for one ship to come after another. Then select either a marker or a active pattern to be pasted. It has to contain the ship and be large entire evolution for one cycle.
- Increment Area runs the grid inside the provided area for one generation.
The conditions include:
- Pattern Stabilizes checks if the entire simulation has become an oscillator or still life.
- Generation is true if the simulation has reached the listed generation.
- Population is true if the simulation has a certain population of live cells.
- Pattern Contains checks if the pattern in the provided clipboard slot is located within the provided area.
- Reset is true if one of the above actions reset the simulation.
Identify Pattern will try to find the period and displacement of the selected pattern, or the entire grid if nothing is selected.
Enable Dark toggles the dark color scheme
Export Options will export most information about the current state of the program as a hyperlink.