From f219f0c5ce65f96051af3eafa9e1a9f5628609af Mon Sep 17 00:00:00 2001
From: Squibid <me@zacharyscheiman.com>
Date: Tue, 23 Dec 2025 12:39:16 -0500
Subject: [PATCH] switch to zig build system and add conways game of life

---
 .gitignore            |   2 +
 .gitmodules           |   9 ----
 build.zig             |  81 ++++++++++++++++++++++++++++
 build.zig.zon         |  20 +++++++
 include/subcmds.h     |   1 +
 lib/cargs             |   1 -
 lib/ds                |   1 -
 lib/log.c             |   1 -
 meson.build           |  60 ---------------------
 src/main.c            |   1 +
 src/subcmds/clock.c   |   2 +-
 src/subcmds/games.zig | 121 ++++++++++++++++++++++++++++++++++++++++++
 12 files changed, 227 insertions(+), 73 deletions(-)
 delete mode 100644 .gitmodules
 create mode 100644 build.zig
 create mode 100644 build.zig.zon
 delete mode 160000 lib/cargs
 delete mode 160000 lib/ds
 delete mode 160000 lib/log.c
 delete mode 100644 meson.build
 create mode 100644 src/subcmds/games.zig

diff --git a/.gitignore b/.gitignore
index f5341b5..cac4223 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 compile_commands.json
 .cache
+.zig-cache
+zig-out
diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index f246ab5..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,9 +0,0 @@
-[submodule "lib/log.c"]
-	path = lib/log.c
-	url = https://github.com/rxi/log.c
-[submodule "lib/ds"]
-	path = lib/ds
-	url = https://git.squi.bid/squibid/ds
-[submodule "lib/cargs"]
-	path = lib/cargs
-	url = https://github.com/likle/cargs
diff --git a/build.zig b/build.zig
new file mode 100644
index 0000000..234e844
--- /dev/null
+++ b/build.zig
@@ -0,0 +1,81 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    const ds = b.dependency("ds", .{});
+    const cargs = b.dependency("cargs", .{});
+    const log = b.dependency("log.c", .{});
+
+    const exe = b.addExecutable(.{
+        .name = "wom",
+        .root_module = b.createModule(.{
+            .target = target,
+            .optimize = optimize,
+            .link_libc = true,
+        }),
+    });
+
+    const games = b.addLibrary(.{
+        .name = "games",
+        .linkage = .static,
+        .root_module = b.createModule(.{
+            .root_source_file = b.path("src/subcmds/games.zig"),
+            .target = target,
+            .optimize = optimize,
+            .link_libc = true,
+        }),
+    });
+    games.pie = true;
+
+    exe.root_module.addCSourceFiles(.{
+        .files = &.{
+            "src/main.c",
+            "src/conf.c",
+            "src/api.c",
+
+            "src/subcmds/clock.c",
+            "src/subcmds/dev.c",
+            "src/subcmds/motd.c",
+            "src/subcmds/project.c",
+            "src/subcmds/subcmds.c",
+
+            "src/lua/wom.c",
+            "src/lua/wom_fs.c",
+        },
+        .flags = &.{
+            "-DVERSION=\"hi\"",
+            "-std=c23",
+            "-D_GNU_SOURCE",
+            "-MJ compile_commands.json",
+        }
+    });
+
+    exe.root_module.linkLibrary(games);
+    exe.root_module.linkSystemLibrary("lua", .{});
+
+    exe.root_module.addIncludePath(b.path("include"));
+    exe.root_module.addLibraryPath(ds.path("."));
+    exe.root_module.addLibraryPath(cargs.path("src"));
+    exe.root_module.addLibraryPath(log.path("src"));
+
+    exe.addCSourceFile(.{ .file = ds.builder.path("./ds.c") });
+    exe.addCSourceFile(.{ .file = cargs.builder.path("src/cargs.c") });
+    exe.addCSourceFile(.{ .file = log.builder.path("./src/log.c") });
+
+    exe.root_module.addIncludePath(ds.path("."));
+    exe.root_module.addIncludePath(cargs.path("include"));
+    exe.root_module.addIncludePath(log.path("src"));
+    b.installArtifact(exe);
+
+    const run_cmd = b.addRunArtifact(exe);
+    run_cmd.step.dependOn(b.getInstallStep());
+
+    if (b.args) |args| {
+        run_cmd.addArgs(args);
+    }
+
+    const run_step = b.step("run", "Run the app");
+    run_step.dependOn(&run_cmd.step);
+}
diff --git a/build.zig.zon b/build.zig.zon
new file mode 100644
index 0000000..497007f
--- /dev/null
+++ b/build.zig.zon
@@ -0,0 +1,20 @@
+.{
+    .name = .womblic,
+    .version = "0.15.2",
+    .dependencies = .{
+        .ds = .{
+            .url = "git+https://git.squi.bid/squibid/ds#758edf9d3049c61aa0036c8239f9fa922905a387",
+            .hash = "N-V-__8AALpEAACaGIC6yceiHvUlUJ-DX3QMaZ9I6uiDgclh",
+        },
+        .cargs = .{
+            .url = "git+https://github.com/likle/cargs#0698c3f90333446d0fc2745c1e9ce10dd4a9497a",
+            .hash = "N-V-__8AAPD5AQDYgLFfeI5K_q70qlurwjhY_e403fseMs3O",
+        },
+        .@"log.c" = .{
+            .url = "git+https://github.com/rxi/log.c#f9ea34994bd58ed342d2245cd4110bb5c6790153",
+            .hash = "N-V-__8AAJ8jAAAVkKD-RFvNLcnmi3SJZWigTFePQTb0sG-u",
+        },
+    },
+    .paths = .{""},
+    .fingerprint = 0x9cc5d26802316aa6,
+}
diff --git a/include/subcmds.h b/include/subcmds.h
index e99c66d..a2ec9c0 100644
--- a/include/subcmds.h
+++ b/include/subcmds.h
@@ -9,4 +9,5 @@ void timer_subcmd(void *, int argc, char *argv[]);
 void stopwatch_subcmd(void *, int argc, char *argv[]);
 void subcmds_dev(void *, int argc, char *argv[]);
 void motd_subcmd(void *, int argc, char *argv[]);
+void games_subcmd(void *, int argc, char *argv[]);
 void subcmds_subcmd(void *, int argc, char *argv[]);
diff --git a/lib/cargs b/lib/cargs
deleted file mode 160000
index 0698c3f..0000000
--- a/lib/cargs
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 0698c3f90333446d0fc2745c1e9ce10dd4a9497a
diff --git a/lib/ds b/lib/ds
deleted file mode 160000
index 5e4ae41..0000000
--- a/lib/ds
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 5e4ae41113e63004bd131010853e5265b31302d3
diff --git a/lib/log.c b/lib/log.c
deleted file mode 160000
index f9ea349..0000000
--- a/lib/log.c
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit f9ea34994bd58ed342d2245cd4110bb5c6790153
diff --git a/meson.build b/meson.build
deleted file mode 100644
index eebb62b..0000000
--- a/meson.build
+++ /dev/null
@@ -1,60 +0,0 @@
-project('womblic', 'c',
-  version: '0.0.1',
-  license: 'GPLv3')
-
-add_project_arguments([
-  '-DVERSION="@0@"'.format(meson.project_version()),
-  '-DLOG_USE_COLOR' # enable colored logs
-], language: 'c')
-
-# get all the source files for the executable
-luafiles = files(
-  'src/lua/wom.c',
-  'src/lua/wom_fs.c'
-)
-
-subcmds = files(
-  'src/subcmds/clock.c',
-  'src/subcmds/dev.c',
-  'src/subcmds/motd.c',
-  'src/subcmds/project.c',
-  'src/subcmds/subcmds.c',
-)
-
-srcfiles = files(
-  'src/main.c',
-  'src/api.c',
-  'src/conf.c'
-) + luafiles + subcmds
-
-cc = meson.get_compiler('c')
-math_dep = cc.find_library('m', required: true)
-
-# build the executable
-executable('wom', srcfiles,
-  dependencies: [
-    dependency('lua', version: '>=5.1 <6.0'),
-    math_dep,
-  ],
-  include_directories: [
-    include_directories('include'),
-
-    include_directories('lib/log.c/src'),
-    include_directories('lib/ds'),
-    include_directories('lib/cargs/include'),
-  ],
-  link_with: [
-    static_library('ds', 'lib/ds/ds.c',
-      include_directories: 'lib/ds'),
-
-    static_library('log.c', 'lib/log.c/src/log.c',
-      include_directories: 'lib/log.c/src'),
-
-    static_library('cargs', 'lib/cargs/src/cargs.c',
-      include_directories: 'lib/cargs/include'),
-  ],
-  install: true
-)
-install_data('completions/_wom.zsh',
-  install_dir: '/usr/local/share/zsh/site-functions/'
-)
diff --git a/src/main.c b/src/main.c
index 3e820dc..999ce5a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -100,6 +100,7 @@ main(int argc, char *argv[])
   register_subcmd("stopwatch", stopwatch_subcmd, NULL);
   register_subcmd("subcmds", subcmds_subcmd, NULL);
   register_subcmd("dev", subcmds_dev, NULL);
+  register_subcmd("games", games_subcmd, NULL);
 
   /* if the user didn't specify a config path */
   if (!config_path) {
diff --git a/src/subcmds/clock.c b/src/subcmds/clock.c
index 8403bf9..bbe006c 100644
--- a/src/subcmds/clock.c
+++ b/src/subcmds/clock.c
@@ -344,7 +344,7 @@ stopwatch_subcmd(void *, int argc, char *argv[])
 
     if (pfd.revents & POLLIN) {
       read(pfd.fd, buf, PATH_MAX);
-      ds_dll_insert(laps, (void *)(long)i);
+      ds_dll_append(laps, (void *)(long)i);
       up++;
     }
 
diff --git a/src/subcmds/games.zig b/src/subcmds/games.zig
new file mode 100644
index 0000000..7f30f85
--- /dev/null
+++ b/src/subcmds/games.zig
@@ -0,0 +1,121 @@
+const std = @import("std");
+const gpa = std.heap.page_allocator;
+
+const Conway = struct {
+    generation: u64 = 0,
+    width: u64,
+    height: u64,
+    world: [][]*Cell,
+
+    const Cell = struct {
+        /// storage of neighbors
+        /// ? 0 ?
+        /// 1 x 2
+        /// ? 3 ?
+        /// instead of storing all 8 neighbors I've decided to contact them
+        /// through our other neighbors.
+        neighbors: [4]?*Cell = .{ null, null, null, null },
+        /// the state on the current generation
+        alive: bool = false,
+        /// the state on the next generation
+        will_live: bool = false,
+    };
+
+    pub fn init(width: u64, height: u64) !Conway {
+        var self: Conway = .{
+            .width = width,
+            .height = height,
+            .world = undefined,
+        };
+
+        // create the world and the cells
+        self.world = try gpa.alloc([]*Cell, width);
+        for (self.world, 0..) |col, i| {
+            self.world[i] = try gpa.alloc(*Cell, height);
+            for (col, 0..) |_, j| {
+                if (j >= height) break;
+                self.world[i][j] = try gpa.create(Cell);
+            }
+        }
+
+        // initialize all the cell properties
+        for (self.world, 0..) |col, i| for (col, 0..) |cell, j| {
+            // the top row has nothing above it
+            cell.neighbors[0] = if (j == 0) null else self.world[i][j - 1];
+            // the left column has nothing on the left
+            cell.neighbors[1] = if (i == 0) null else self.world[i - 1][j];
+            // the right row has nothing on the right
+            cell.neighbors[2] = if (i == width - 1) null else self.world[i + 1][j];
+            // the bottom row has nothing below it
+            cell.neighbors[3] = if (j == height - 1) null else self.world[i][j + 1];
+            cell.alive = false;
+        };
+
+        return self;
+    }
+
+    pub fn step(self: *Conway) void {
+        for (self.world) |col| for (col) |cell| {
+            var alive_neighbors: u4 = 0;
+
+            // count the neighbors
+            for (cell.neighbors, 0..) |n, i| {
+                if (n == null) continue;
+                if (i == 0 or i == 3) {
+                    if (n.?.neighbors[1]) |nn| if (nn.alive) {
+                        alive_neighbors += 1;
+                    };
+                    if (n.?.neighbors[2]) |nn| if (nn.alive) {
+                        alive_neighbors += 1;
+                    };
+                }
+                if (n.?.alive) alive_neighbors += 1;
+            }
+
+            // rules
+            if (cell.alive) {
+                cell.will_live = switch (alive_neighbors) {
+                    2, 3 => true,
+                    else => false
+                };
+            } else if (alive_neighbors == 3) cell.will_live = true;
+        };
+
+        for (self.world) |col| for (col) |cell| {
+            cell.alive = cell.will_live;
+        };
+    }
+
+    pub fn print(self: *Conway) void {
+        for (self.world) |col| {
+            for (col) |cell| {
+                std.debug.print("{s}", .{if (cell.alive) "x" else " "});
+            }
+            std.debug.print("\n", .{});
+        }
+    }
+};
+
+pub export fn games_subcmd(_: *anyopaque, argc: c_int, argv: [*c]u8) callconv(.c) void {
+    _ = argc;
+    _ = argv;
+
+    var con = Conway.init(40, 40) catch unreachable;
+    con.world[4][2].alive = true;
+    con.world[4][3].alive = true;
+    con.world[4][4].alive = true;
+    con.world[4][5].alive = true;
+    con.world[4][6].alive = true;
+    con.world[4][7].alive = true;
+    con.world[5][2].alive = true;
+    con.world[5][3].alive = true;
+    con.world[5][4].alive = true;
+    con.world[5][5].alive = true;
+    con.world[5][6].alive = true;
+
+    while (true) : (con.step()) {
+        con.print();
+        std.posix.nanosleep(0, 250000000);
+        std.debug.print("\x1B[{}A", .{con.height});
+    }
+}