Added note about running wasm but doesnt build

build.zig

@@ -1,4 +1,7 @@
 const std = @import("std");
+const sokol = @import("sokol");
+
+const title = "sok";
 
 pub fn build(b: *std.Build) void {
     const target = b.standardTargetOptions(.{});
@@ -6,49 +9,78 @@ pub fn build(b: *std.Build) void {
 
     const dep_sokol = b.dependency("sokol", .{ .target = target, .optimize = optimize });
 
-    // Exe
+    if (!target.result.isWasm()) {
+        // Native exe
 
-    const exe = b.addExecutable(.{
-        .name = "sok",
-        .root_source_file = b.path("src/main.zig"),
-        .target = target,
-        .optimize = optimize,
-    });
+        const exe = b.addExecutable(.{
+            .name = title,
+            .root_source_file = b.path("src/main.zig"),
+            .target = target,
+            .optimize = optimize,
+        });
 
-    exe.root_module.addImport("sokol", dep_sokol.module("sokol"));
+        exe.root_module.addImport("sokol", dep_sokol.module("sokol"));
 
-    // Set this to hide console on windows
-    //exe.subsystem = .Windows;
+        // Set this to hide console on windows
+        //exe.subsystem = .Windows;
 
-    b.installArtifact(exe);
+        b.installArtifact(exe);
 
-    // Check step (for ZLS)
+        // Check step (for ZLS)
 
-    const exe_check = b.addExecutable(.{
-        .name = "check_step",
-        .root_source_file = b.path("src/main.zig"),
-        .target = target,
-        .optimize = optimize,
-    });
+        const exe_check = b.addExecutable(.{
+            .name = "check_step",
+            .root_source_file = b.path("src/main.zig"),
+            .target = target,
+            .optimize = optimize,
+        });
 
-    exe_check.root_module.addImport("sokol", dep_sokol.module("sokol"));
+        exe_check.root_module.addImport("sokol", dep_sokol.module("sokol"));
 
-    const check = b.step("check", "Check if project compiles");
-    check.dependOn(&exe_check.step);
+        const check = b.step("check", "Check if project compiles");
+        check.dependOn(&exe_check.step);
 
-    // Run
+        // Run
 
-    const run_cmd = b.addRunArtifact(exe);
+        const run_cmd = b.addRunArtifact(exe);
 
-    run_cmd.step.dependOn(b.getInstallStep());
+        run_cmd.step.dependOn(b.getInstallStep());
 
-    if (b.args) |args| {
-        run_cmd.addArgs(args);
+        if (b.args) |args| {
+            run_cmd.addArgs(args);
+        }
+
+        const run_step = b.step("run", "Run" ++ title ++ " as native app");
+        run_step.dependOn(&run_cmd.step);
+    } else {
+        // Web
+
+        const wasmLib = b.addStaticLibrary(.{
+            .name = title,
+            .target = target,
+            .optimize = optimize,
+            .root_source_file = b.path("src/pacman.zig"),
+        });
+        wasmLib.root_module.addImport("sokol", dep_sokol.module("sokol"));
+
+        // create a build step which invokes the Emscripten linker
+        const emsdk = dep_sokol.builder.dependency("emsdk", .{});
+        const link_step = try sokol.emLinkStep(b, .{
+            .lib_main = wasmLib,
+            .target = target,
+            .optimize = optimize,
+            .emsdk = emsdk,
+            .use_webgl2 = true,
+            .use_emmalloc = true,
+            .use_filesystem = false,
+            .shell_file_path = dep_sokol.path("src/sokol/web/shell.html").getPath(b),
+        });
+        // ...and a special run step to start the web build output via 'emrun'
+        const run = sokol.emRunStep(b, .{ .name = "sok", .emsdk = emsdk });
+        run.step.dependOn(&link_step.step);
+        b.step("run", "Run " ++ title ++ " as wasm").dependOn(&run.step);
     }
 
-    const run_step = b.step("run", "Run the app");
-    run_step.dependOn(&run_cmd.step);
-
     // Tests
 
     const exe_unit_tests = b.addTest(.{

readme.md

@@ -10,6 +10,8 @@ The goal of this project is not fixed, and is just to try out some sokol feature
 
 To build, you need to have zig master (you can use [zvm](https://www.zvm.app/) to help you with this). Then just `zig build run` and that should be it!
 
+To build for wasm, use `zig build -Dtarget=wasm32-emscripten run`
+
 Note that if you change shaders, you have to recompile them manually - run compile_shaders.bat.
 
 ### Live error checking