initial

build.zig

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+const std = @import("std");
+
+pub fn build(b: *std.build.Builder) void {
+    // Standard target options allows the person running `zig build` to choose
+    // what target to build for. Here we do not override the defaults, which
+    // means any target is allowed, and the default is native. Other options
+    // for restricting supported target set are available.
+    const target = b.standardTargetOptions(.{});
+
+    // Standard release options allow the person running `zig build` to select
+    // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
+    const mode = b.standardReleaseOptions();
+
+    const exe = b.addExecutable("maze", "src/main.zig");
+    exe.setTarget(target);
+    exe.setBuildMode(mode);
+    exe.install();
+
+    const run_cmd = exe.run();
+    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);
+
+    const exe_tests = b.addTest("src/main.zig");
+    exe_tests.setTarget(target);
+    exe_tests.setBuildMode(mode);
+
+    const test_step = b.step("test", "Run unit tests");
+    test_step.dependOn(&exe_tests.step);
+}

readme.md

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+# maze
+Prints a maze 
+
+# building
+Install the latest zig version (tested with 0.9.1)
+run `zig build run`

src/main.zig

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+const std = @import("std");
+const rand = std.rand.Random;
+const DefaultPrng = std.rand.DefaultPrng;
+
+const linelength: u16 = 40;
+const lineCount: u16 = 20;
+
+pub fn main() anyerror!void {
+    var prng = DefaultPrng.init(0);
+    var random = prng.random();
+    
+    if(lineCount > 0){
+        var i: u16 = 0;
+        while(i < linelength){
+            try printMazeLine(random, linelength);
+            i += 1;
+        }
+    }else {
+        while(true){
+            try printMazeLine(random, linelength);
+        }
+    }
+}
+
+/// Print a maze line like \/\\/////\\
+pub fn printMazeLine(rng: std.rand.Random, length: u16) anyerror!void{
+    //todo: why can't i pass this from above?
+    const out = std.io.getStdOut().writer();
+
+    var x: u16 = 0;
+    while(x < length){
+        if(rng.boolean()){
+            try out.print("{s}", .{"/"});
+        }else{
+            try out.print("{s}", .{"\\"});
+        }
+        x += 1;
+    }
+    try out.print("\n", .{});
+}