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disable wasm until 0.17 is released

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This commit is contained in:
Rokas Puzonas 2026-07-01 02:06:10 +03:00
parent 6bc644764f
commit 768571064c
3 changed files with 141 additions and 16 deletions
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18
README.md Normal file
View File

@ -0,0 +1,18 @@
# Gaem
## Run
Linux and Windows:
```sh
zig build run
```
Web:
```sh
zig build -Dtarget=wasm32-emscripten run
```
Cross-compile for Windows from Linux:
```sh
zig build -Dtarget=x86_64-windows
```

122
build.zig
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@ -1,4 +1,5 @@
const std = @import("std");
const sokol = @import("sokol");
pub fn build(b: *std.Build) !void {
const target = b.standardTargetOptions(.{});
@ -7,11 +8,17 @@ pub fn build(b: *std.Build) !void {
const is_wasm = target.result.cpu.arch.isWasm();
const is_debug = (optimize == .Debug);
const has_tracy = b.option(bool, "tracy", "Tracy integration") orelse is_debug;
const has_imgui = b.option(bool, "imgui", "ImGui integration") orelse is_debug;
var has_tracy = false;
if (!is_wasm) {
has_tracy = b.option(bool, "tracy", "Tracy integration") orelse is_debug;
}
const exe_mod = b.createModule(.{
.root_source_file = b.path("src/main.zig"),
.target = target,
.optimize = optimize,
});
const build_options = b.addOptions();
@ -53,11 +60,26 @@ pub fn build(b: *std.Build) !void {
}
exe_mod.addImport("tracy", dep_tracy.module("tracy"));
var run_cmd_step: *std.Build.Step = undefined;
if (is_wasm) {
// TODO:
if (true) {
@panic("TODO: test in 0.17");
}
const build_step = buildWasm(b, .{
.name = "index",
.root_module = exe_mod,
.dep_sokol = dep_sokol,
});
b.getInstallStep().dependOn(build_step);
const dep_emsdk = dep_sokol.builder.dependency("emsdk", .{});
const emrun_step = sokol.emRunStep(b, .{ .name = "index", .emsdk = dep_emsdk });
emrun_step.step.dependOn(build_step);
run_cmd_step = &emrun_step.step;
// TODO: Create a zip archive of all of the files. Would be useful for easier itch.io upload
} else {
exe_mod.resolved_target = target;
exe_mod.optimize = optimize;
const exe = buildNative(b, .{
.name = "sokol_template_v2",
.root_module = exe_mod
@ -66,13 +88,10 @@ pub fn build(b: *std.Build) !void {
{
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);
run_cmd_step = &run_cmd.step;
}
{
@ -83,6 +102,9 @@ pub fn build(b: *std.Build) !void {
test_step.dependOn(&run_exe_tests.step);
}
}
const run_step = b.step("run", "Run game");
run_step.dependOn(run_cmd_step);
}
const BuildNativeOptions = struct {
@ -202,3 +224,87 @@ const AddExecutableIcon = struct {
}
}
};
const BuildWasmOptions = struct {
name: []const u8,
root_module: *std.Build.Module,
dep_sokol: *std.Build.Dependency,
};
fn buildWasm(b: *std.Build, opts: BuildWasmOptions) *std.Build.Step {
opts.root_module.sanitize_c = .off;
// build the main file into a library, this is because the WASM 'exe'
// needs to be linked in a separate build step with the Emscripten linker
const main_lib = b.addLibrary(.{
.name = opts.name,
.root_module = opts.root_module,
});
const dep_sokol = opts.dep_sokol;
const dep_emsdk = dep_sokol.builder.dependency("emsdk", .{});
// TODO:
// const emsdk_install_step = sokol.emSdkInstallStep(b, dep_emsdk, .{});
// main_lib.step.dependOn(emsdk_install_step);
patchWasmIncludeDirs(
opts.root_module,
dep_emsdk.path("upstream/emscripten/cache/sysroot/include"),
&(dep_sokol.artifact("sokol_clib").step)
);
const link_step = sokol.emLinkStep(b, .{
.lib_main = main_lib,
.target = opts.root_module.resolved_target.?,
.optimize = opts.root_module.optimize.?,
.emsdk = dep_emsdk,
.use_webgl2 = true,
.use_emmalloc = true,
.use_filesystem = false,
.shell_file_path = b.path("src/engine/shell.html"),
}) catch unreachable;
return &link_step.step;
}
fn patchWasmIncludeDirs(
module: *std.Build.Module,
path: std.Build.LazyPath,
depend_step: *std.Build.Step
) void {
if (module.link_libc != null and module.link_libc.?) {
// need to inject the Emscripten system header include path into
// the cimgui C library otherwise the C/C++ code won't find
// C stdlib headers
module.addSystemIncludePath(path);
}
for (module.import_table.values()) |imported_module| {
patchWasmIncludeDirs(imported_module, path, depend_step);
}
for (module.link_objects.items) |link_object| {
if (link_object != .other_step) {
continue;
}
const lib = link_object.other_step;
if (&lib.step == depend_step) {
continue;
}
if (lib.root_module.link_libc != null and lib.root_module.link_libc.?) {
// need to inject the Emscripten system header include path into
// the cimgui C library otherwise the C/C++ code won't find
// C stdlib headers
lib.root_module.addSystemIncludePath(path);
// all C libraries need to depend on the sokol library, when building for
// WASM this makes sure that the Emscripten SDK has been setup before
// C compilation is attempted (since the sokol C library depends on the
// Emscripten SDK setup step)
lib.step.dependOn(depend_step);
}
patchWasmIncludeDirs(lib.root_module, path, depend_step);
}
}

17
src/platform.zig
View File

@ -22,7 +22,6 @@ const ig = @import("cimgui");
const Color = @import("./color.zig");
fn PlatformType(App: type) type {
_ = App; // autofix
return struct {
const Self = @This();
@ -31,6 +30,8 @@ fn PlatformType(App: type) type {
show_first_window: bool = true,
app: App,
fn sokolInit(user_data: ?*anyopaque) callconv(.c) void {
const self: *Self = @ptrCast(@alignCast(user_data));
sg.setup(.{
@ -44,8 +45,8 @@ fn PlatformType(App: type) type {
if (@hasDecl(ig, "ImGuiConfigFlags_DockingEnable")) {
ig.igGetIO().*.ConfigFlags |= ig.ImGuiConfigFlags_DockingEnable;
}
ig.igGetIO().*.ConfigFlags |= ig.ImGuiConfigFlags_ViewportsEnable;
}
self.pass_action.colors[0] = .{
.load_action = .CLEAR,
@ -68,8 +69,8 @@ fn PlatformType(App: type) type {
//=== UI CODE STARTS HERE
{
const viewport = ig.igGetMainViewport();
ig.igSetNextWindowPos(viewport[0].WorkPos, ig.ImGuiCond_Always);
ig.igSetNextWindowSize(viewport[0].WorkSize, ig.ImGuiCond_Always);
ig.igSetNextWindowPos(viewport[0].Pos, ig.ImGuiCond_Always);
ig.igSetNextWindowSize(viewport[0].Size, ig.ImGuiCond_Always);
ig.igSetNextWindowViewport(viewport[0].ID);
const window_flags =
@ -138,14 +139,12 @@ fn PlatformType(App: type) type {
const self: *Self = @ptrCast(@alignCast(user_data));
_ = self; // autofix
// forward input events to sokol-imgui
_ = simgui.handleEvent(ev.*);
}
fn sokolCleanup(user_data: ?*anyopaque) callconv(.c) void {
const self: *Self = @ptrCast(@alignCast(user_data));
_ = self; // autofix
// self.deinit(&self.exposed);
simgui.shutdown();
sg.shutdown();
}
@ -168,7 +167,8 @@ pub fn run(App: type, opts: RunOptions) void {
const Platform = PlatformType(App);
const plt = arena.create(Platform) catch @panic("OOM");
plt.* = Platform{
.cli_args = opts.init.minimal.args.toSlice(arena) catch @panic("OOM")
.cli_args = opts.init.minimal.args.toSlice(arena) catch @panic("OOM"),
.app = undefined
};
// var init = Platform.Init{
@ -186,7 +186,8 @@ pub fn run(App: type, opts: RunOptions) void {
// std.process.exit(1);
// }
if (builtin.os.tag == .linux) {
const is_wasm = builtin.cpu.arch.isWasm();
if (builtin.os.tag == .linux and !is_wasm) {
var sa: std.posix.Sigaction = .{
.handler = .{ .handler = posixSignalHandler },
.mask = std.posix.sigemptyset(),