From 5d6f7dc3f317614526b74c348b0388b6304d7020 Mon Sep 17 00:00:00 2001
From: NotAShelf <itsashelf@gmail.com>
Date: Sun, 5 Feb 2023 16:14:25 +0300
Subject: [PATCH] feat: add cellular automaton to visuals

---
 flake.lock                  | 17 +++++++++++++++
 flake.nix                   |  6 ++++++
 modules/visuals/visuals.nix | 41 +++++++++++++++++++++++++++++++++++++
 3 files changed, 64 insertions(+)

diff --git a/flake.lock b/flake.lock
index ad5afd3..e963131 100644
--- a/flake.lock
+++ b/flake.lock
@@ -48,6 +48,22 @@
         "type": "github"
       }
     },
+    "cellular-automaton": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1674679594,
+        "narHash": "sha256-h4KQCf8+GbxWSyZzDny07YFZm7j+aSSfm51lsaK0Ers=",
+        "owner": "Eandrju",
+        "repo": "cellular-automaton.nvim",
+        "rev": "679943b8e1e5ef79aaeeaf4b00782c52eb4e928f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Eandrju",
+        "repo": "cellular-automaton.nvim",
+        "type": "github"
+      }
+    },
     "cheatsheet-nvim": {
       "flake": false,
       "locked": {
@@ -823,6 +839,7 @@
         "alpha-nvim": "alpha-nvim",
         "bufdelete-nvim": "bufdelete-nvim",
         "catppuccin": "catppuccin",
+        "cellular-automaton": "cellular-automaton",
         "cheatsheet-nvim": "cheatsheet-nvim",
         "cinnamon-nvim": "cinnamon-nvim",
         "cmp-buffer": "cmp-buffer",
diff --git a/flake.nix b/flake.nix
index 49feb34..a1543c7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -66,6 +66,7 @@
           nvimWebDevicons.enable = true;
           scrollBar.enable = true;
           smoothScroll.enable = true;
+          cellularAutomaton.enable = true;
           lspkind.enable = true;
           indentBlankline = {
             enable = true;
@@ -429,6 +430,11 @@
       flake = false;
     };
 
+    cellular-automaton = {
+      url = "github:Eandrju/cellular-automaton.nvim";
+      flake = false;
+    };
+
     indent-blankline = {
       url = "github:lukas-reineke/indent-blankline.nvim";
       flake = false;
diff --git a/modules/visuals/visuals.nix b/modules/visuals/visuals.nix
index b00b408..a186378 100644
--- a/modules/visuals/visuals.nix
+++ b/modules/visuals/visuals.nix
@@ -34,6 +34,12 @@ in {
       description = "enable smooth scrolling [cinnamon-nvim]";
     };
 
+    cellularAutomaton.enable = mkOption {
+      type = types.bool;
+      description = "enable cellular automaton [cellular-automaton]";
+      default = false;
+    };
+
     cursorWordline = {
       enable = mkOption {
         type = types.bool;
@@ -108,6 +114,11 @@ in {
           then "cinnamon-nvim"
           else null
         )
+        (
+          if cfg.cellularAutomaton.enable
+          then "cellular-automaton"
+          else null
+        )
       ];
 
       vim.luaConfigRC.visuals = nvim.dag.entryAnywhere ''
@@ -169,6 +180,36 @@ in {
           then "require('cinnamon').setup()"
           else ""
         }
+        ${
+          if cfg.cellularAutomaton.enable
+          then ''
+            local config = {
+              fps = 50,
+              name = 'slide',
+            }
+
+            -- init function is invoked only once at the start
+            -- config.init = function (grid)
+            --
+            -- end
+
+            -- update function
+            config.update = function (grid)
+            for i = 1, #grid do
+              local prev = grid[i][#(grid[i])]
+                for j = 1, #(grid[i]) do
+                  grid[i][j], prev = prev, grid[i][j]
+                end
+              end
+              return true
+            end
+
+            require("cellular-automaton").register_animation(config)
+
+            vim.keymap.set("n", "<leader>fml", "<cmd>CellularAutomaton make_it_rain<CR>")
+          ''
+          else ""
+        }
       '';
     };
 }