LNXSDK/leenkx/blender/lnx/make.py

import errno
import glob
import json
import os
from queue import Queue
import re
import shlex
import shutil
import stat
from string import Template
import subprocess
import tempfile
import threading
import time
import traceback
from typing import Callable
import webbrowser

import bpy

from lnx import assets
from lnx.exporter import LeenkxExporter
import lnx.lib.make_datas
import lnx.lib.server
import lnx.live_patch as live_patch
import lnx.log as log
import lnx.make_logic as make_logic
import lnx.make_renderpath as make_renderpath
import lnx.make_state as state
import lnx.make_world as make_world
import lnx.utils
import lnx.utils_vs
import lnx.write_data as write_data

if lnx.is_reload(__name__):
    assets = lnx.reload_module(assets)
    lnx.exporter = lnx.reload_module(lnx.exporter)
    from lnx.exporter import LeenkxExporter
    lnx.lib.make_datas = lnx.reload_module(lnx.lib.make_datas)
    lnx.lib.server = lnx.reload_module(lnx.lib.server)
    live_patch = lnx.reload_module(live_patch)
    log = lnx.reload_module(log)
    make_logic = lnx.reload_module(make_logic)
    make_renderpath = lnx.reload_module(make_renderpath)
    state = lnx.reload_module(state)
    make_world = lnx.reload_module(make_world)
    lnx.utils = lnx.reload_module(lnx.utils)
    lnx.utils_vs = lnx.reload_module(lnx.utils_vs)
    write_data = lnx.reload_module(write_data)
else:
    lnx.enable_reload(__name__)

scripts_mtime = 0 # Monitor source changes
profile_time = 0

# Queue of threads and their done callbacks. Item format: [thread, done]
thread_callback_queue = Queue(maxsize=0)


def run_proc(cmd, done: Callable) -> subprocess.Popen:
    """Creates a subprocess with the given command and returns it.

    If Blender is not running in background mode, a thread is spawned
    that waits until the subprocess has finished executing to not freeze
    the UI, otherwise (in background mode) execution is blocked until
    the subprocess has finished.

    If `done` is not `None`, it is called afterwards in the main thread.
    """
    use_thread = not bpy.app.background

    def wait_for_proc(proc: subprocess.Popen):
        proc.wait()

        if use_thread:
            # Put the done callback into the callback queue so that it
            # can be received by a polling function in the main thread
            thread_callback_queue.put([threading.current_thread(), done], block=True)
            while not thread_callback_queue.empty():
                thread, callback = thread_callback_queue.get()
                if callback is not None:
                    callback()
        else:
            done()

    print(*cmd)
    p = subprocess.Popen(cmd)

    if use_thread:
        threading.Thread(target=wait_for_proc, args=(p,)).start()
    else:
        wait_for_proc(p)

    return p


def compile_shader_pass(res, raw_shaders_path, shader_name, defs, make_variants):
    os.chdir(raw_shaders_path + '/' + shader_name)

    # Open json file
    json_name = shader_name + '.json'
    with open(json_name, encoding='utf-8') as f:
        json_file = f.read()
    json_data = json.loads(json_file)

    fp = lnx.utils.get_fp_build()
    lnx.lib.make_datas.make(res, shader_name, json_data, fp, defs, make_variants)

    path = fp + '/compiled/Shaders'
    contexts = json_data['contexts']
    for ctx in contexts:
        for s in ['vertex_shader', 'fragment_shader', 'geometry_shader', 'tesscontrol_shader', 'tesseval_shader']:
            if s in ctx:
                shutil.copy(ctx[s], path + '/' + ctx[s].split('/')[-1])

def remove_readonly(func, path, excinfo):
    os.chmod(path, stat.S_IWRITE)
    func(path)


appended_scenes = []

def load_external_blends():
    global appended_scenes

    wrd = bpy.data.worlds['Lnx']
    if not hasattr(wrd, 'lnx_external_blends_path'):
        return

    external_path = getattr(wrd, 'lnx_external_blends_path', '')
    if not external_path or not external_path.strip():
        return

    abs_path = bpy.path.abspath(external_path.strip())
    if not os.path.exists(abs_path):
        return

    # Walk recursively through all subdirs
    for root, dirs, files in os.walk(abs_path):
        for filename in files:
            if not filename.endswith(".blend"):
                continue

            blend_path = os.path.join(root, filename)
            try:
                with bpy.data.libraries.load(blend_path, link=True) as (data_from, data_to):
                    data_to.scenes = list(data_from.scenes)

                for scn in data_to.scenes:
                    if scn is not None and scn not in appended_scenes:
                        # make name unique with file name
                        scn.name += "_" + filename.replace(".blend", "")
                        appended_scenes.append(scn)

                log.info(f"Loaded external blend: {blend_path}")
            except Exception as e:
                log.error(f"Failed to load external blend {blend_path}: {e}")

def clear_external_scenes():
    global appended_scenes
    if not appended_scenes:
        return

    for scn in appended_scenes:
        try:
            bpy.data.scenes.remove(scn, do_unlink=True)
        except Exception as e:
            log.error(f"Failed to remove scene {scn.name}: {e}")

    for lib in list(bpy.data.libraries):
        try:
            if lib.users == 0:
                bpy.data.libraries.remove(lib)
        except Exception as e:
            log.error(f"Failed to remove library {lib.name}: {e}")

    try:
        bpy.ops.outliner.orphans_purge(do_local_ids=True, do_linked_ids=True, do_recursive=True)
    except Exception as e:
        log.error(f"Failed to purge orphan data: {e}")

    appended_scenes = []

def export_data(fp, sdk_path):
    state.is_exporting = True
    try:
        export_data_impl(fp, sdk_path)
    finally:
        state.is_exporting = False


def export_data_impl(fp, sdk_path):
    load_external_blends()

    wrd = bpy.data.worlds['Lnx']
    rpdat = lnx.utils.get_rp()

    if wrd.lnx_verbose_output:
        print(f'Leenkx v{wrd.lnx_version} ({wrd.lnx_commit})')
        print(f'Blender: {bpy.app.version_string}, Target: {state.target}, GAPI: {lnx.utils.get_gapi()}')

    # Clean compiled variants if cache is disabled
    build_dir = lnx.utils.get_fp_build()
    if not wrd.lnx_cache_build:
        if os.path.isdir(build_dir + '/debug/html5-resources'):
            shutil.rmtree(build_dir + '/debug/html5-resources', onerror=remove_readonly)
        if os.path.isdir(build_dir + '/krom-resources'):
            shutil.rmtree(build_dir + '/krom-resources', onerror=remove_readonly)
        if os.path.isdir(build_dir + '/debug/krom-resources'):
            shutil.rmtree(build_dir + '/debug/krom-resources', onerror=remove_readonly)
        if os.path.isdir(build_dir + '/windows-resources'):
            shutil.rmtree(build_dir + '/windows-resources', onerror=remove_readonly)
        if os.path.isdir(build_dir + '/linux-resources'):
            shutil.rmtree(build_dir + '/linux-resources', onerror=remove_readonly)
        if os.path.isdir(build_dir + '/osx-resources'):
            shutil.rmtree(build_dir + '/osx-resources', onerror=remove_readonly)
        if os.path.isdir(build_dir + '/compiled/Shaders'):
            shutil.rmtree(build_dir + '/compiled/Shaders', onerror=remove_readonly)

    raw_shaders_path = sdk_path + '/leenkx/Shaders/'
    assets_path = sdk_path + '/leenkx/Assets/'
    export_physics = bpy.data.worlds['Lnx'].lnx_physics != 'Disabled'
    export_navigation = bpy.data.worlds['Lnx'].lnx_navigation != 'Disabled'
    export_ui = bpy.data.worlds['Lnx'].lnx_ui != 'Disabled'
    export_network = bpy.data.worlds['Lnx'].lnx_network != 'Disabled'

    assets.reset()

    # Build node trees
    LeenkxExporter.import_traits = []
    make_logic.build()
    make_world.build()
    make_renderpath.build()

    # Export scene data
    assets.embedded_data = sorted(list(set(assets.embedded_data)))
    physics_found = False
    navigation_found = False
    ui_found = False
    network_found = False
    LeenkxExporter.compress_enabled = state.is_publish and wrd.lnx_asset_compression
    LeenkxExporter.optimize_enabled = state.is_publish and wrd.lnx_optimize_data
    if not os.path.exists(build_dir + '/compiled/Assets'):
        os.makedirs(build_dir + '/compiled/Assets')

    # Make all 'MESH' and 'EMPTY' objects visible to the depsgraph (we pass
    # this to the exporter further below) with a temporary "zoo" collection
    # in the current scene. We do this to ensure that (among other things)
    # modifiers are applied to all exported objects.
    export_coll = bpy.data.collections.new("export_coll")
    bpy.context.scene.collection.children.link(export_coll)
    export_coll_names = set(export_coll.all_objects.keys())
    for scene in bpy.data.scenes:
        if scene == bpy.context.scene:
            continue
        for o in scene.collection.all_objects:
            if o.type in ('MESH', 'EMPTY'):
                if o.name not in export_coll_names:
                    export_coll.objects.link(o)
                    export_coll_names.add(o.name)
    depsgraph = bpy.context.evaluated_depsgraph_get()
    bpy.data.collections.remove(export_coll)  # Destroy the "zoo" collection

    for scene in bpy.data.scenes:
        if scene.lnx_export:
            ext = '.lz4' if LeenkxExporter.compress_enabled else '.lnx'
            asset_path = build_dir + '/compiled/Assets/' + lnx.utils.safestr(scene.name) + ext
            LeenkxExporter.export_scene(bpy.context, asset_path, scene=scene, depsgraph=depsgraph)
            if LeenkxExporter.export_physics:
                physics_found = True
            if LeenkxExporter.export_navigation:
                navigation_found = True
            if LeenkxExporter.export_ui:
                ui_found = True
            if LeenkxExporter.export_network:
                network_found = True
            assets.add(asset_path)

    if physics_found is False: # Disable physics if no rigid body is exported
        export_physics = False

    if navigation_found is False:
        export_navigation = False

    if ui_found is False:
        export_ui = False

    if network_found == False:
        export_network = False

    # Ugly workaround: some logic nodes require Zui code even if no UI is used,
    # for now enable UI export unless explicitly disabled.
    export_ui = True
    if wrd.lnx_ui == 'Disabled':
        export_ui = False

    if wrd.lnx_network == 'Enabled':
        export_network = True

    modules = []
    if wrd.lnx_audio == 'Enabled':
        modules.append('audio')
    if export_physics:
        modules.append('physics')
    if export_navigation:
        modules.append('navigation')
    if export_ui:
        modules.append('ui')
    if export_network:
        modules.append('network')

    defs = lnx.utils.def_strings_to_array(wrd.world_defs)
    cdefs = lnx.utils.def_strings_to_array(wrd.compo_defs)

    if wrd.lnx_verbose_output:
        log.info('Exported modules: '+', '.join(modules))
        log.info('Shader flags: '+', '.join(defs))
        log.info('Compositor flags: '+', '.join(cdefs))
        log.info('Khafile flags: '+', '.join(assets.khafile_defs))

    # Render path is configurable at runtime
    has_config = wrd.lnx_write_config or os.path.exists(lnx.utils.get_fp() + '/Bundled/config.lnx')

    # Write compiled.inc
    shaders_path = build_dir + '/compiled/Shaders'
    if not os.path.exists(shaders_path):
        os.makedirs(shaders_path)
    inc_changed = write_data.write_compiledglsl(defs + cdefs, make_variants=has_config)

    if inc_changed:
        for g in glob.glob(shaders_path + '/*.glsl'):
            os.utime(g, None)

    # Write referenced shader passes
    if not os.path.isfile(build_dir + '/compiled/Shaders/shader_datas.lnx') or state.last_world_defs != wrd.world_defs:
        res = {'shader_datas': []}

        for ref in assets.shader_passes:
            # Ensure shader pass source exists
            if not os.path.exists(raw_shaders_path + '/' + ref):
                continue
            assets.shader_passes_assets[ref] = []
            compile_shader_pass(res, raw_shaders_path, ref, defs + cdefs, make_variants=has_config)

        # Workaround to also export non-material world shaders
        res['shader_datas'] += make_world.shader_datas

        if rpdat.lnx_lens or rpdat.lnx_lut:
            for shader_pass in res["shader_datas"]:
                for context in shader_pass["contexts"]:
                    for texture_unit in context["texture_units"]:
                        # Lens Texture
                        if rpdat.lnx_lens_texture != '' and rpdat.lnx_lens_texture != 'lenstexture.jpg' and "link" in texture_unit and texture_unit["link"] == "$lenstexture.jpg":
                            texture_unit["link"] = f"${rpdat.lnx_lens_texture}"
                        # LUT Colorgrading
                        if rpdat.lnx_lut_texture != '' and rpdat.lnx_lut_texture != 'luttexture.jpg' and "link" in texture_unit and texture_unit["link"] == "$luttexture.jpg":
                            texture_unit["link"] = f"${rpdat.lnx_lut_texture}"

        lnx.utils.write_lnx(shaders_path + '/shader_datas.lnx', res)

    if wrd.lnx_debug_console and rpdat.rp_renderer == 'Deferred':
        # Copy deferred shader so that it can include compiled.inc
        line_deferred_src = os.path.join(sdk_path, 'leenkx', 'Shaders', 'debug_draw', 'line_deferred.frag.glsl')
        line_deferred_dst = os.path.join(shaders_path, 'line_deferred.frag.glsl')
        shutil.copyfile(line_deferred_src, line_deferred_dst)

    for ref in assets.shader_passes:
        for s in assets.shader_passes_assets[ref]:
            assets.add_shader(shaders_path + '/' + s + '.glsl')
    for file in assets.shaders_external:
        name = file.split('/')[-1].split('\\')[-1]
        target = build_dir + '/compiled/Shaders/' + name
        if not os.path.exists(target):
            shutil.copy(file, target)
    state.last_world_defs = wrd.world_defs

    # Reset path
    os.chdir(fp)

    # Copy std shaders
    if not os.path.isdir(build_dir + '/compiled/Shaders/std'):
        shutil.copytree(raw_shaders_path + 'std', build_dir + '/compiled/Shaders/std')

    # Write config.lnx
    resx, resy = lnx.utils.get_render_resolution(lnx.utils.get_active_scene())
    if wrd.lnx_write_config:
        write_data.write_config(resx, resy)

    # Change project version (Build, Publish)
    if (not state.is_play) and (wrd.lnx_project_version_autoinc):
        wrd.lnx_project_version = lnx.utils.change_version_project(wrd.lnx_project_version)

    # Write khafile.js
    write_data.write_khafilejs(state.is_play, export_physics, export_navigation, export_ui, export_network, state.is_publish, LeenkxExporter.import_traits)

    # Write Main.hx - depends on write_khafilejs for writing number of assets
    scene_name = lnx.utils.get_project_scene_name()
    write_data.write_mainhx(scene_name, resx, resy, state.is_play, state.is_publish)
    if scene_name != state.last_scene or resx != state.last_resx or resy != state.last_resy:
        wrd.lnx_recompile = True
        state.last_resx = resx
        state.last_resy = resy
        state.last_scene = scene_name

    clear_external_scenes()

def compile(assets_only=False):
    wrd = bpy.data.worlds['Lnx']
    fp = lnx.utils.get_fp()
    os.chdir(fp)

    node_path = lnx.utils.get_node_path()
    khamake_path = lnx.utils.get_khamake_path()
    cmd = [node_path, khamake_path]

    # Custom exporter
    if state.target == "custom":
        if len(wrd.lnx_exporterlist) > 0:
            item = wrd.lnx_exporterlist[wrd.lnx_exporterlist_index]
            if item.lnx_project_target == 'custom' and item.lnx_project_khamake != '':
                for s in item.lnx_project_khamake.split(' '):
                    cmd.append(s)
        state.proc_build = run_proc(cmd, build_done)
    else:
        target_name = state.target
        kha_target_name = lnx.utils.get_kha_target(target_name)
        if kha_target_name != '':
            cmd.append(kha_target_name)
        ffmpeg_path = lnx.utils.get_ffmpeg_path()
        if ffmpeg_path not in (None, ''):
            cmd.append('--ffmpeg')
            cmd.append(ffmpeg_path) # '"' + ffmpeg_path + '"'

        state.export_gapi = lnx.utils.get_gapi()
        cmd.append('-g')
        cmd.append(state.export_gapi)
        # Windows - Set Visual Studio Version
        if state.target.startswith('windows'):
            cmd.append('--visualstudio')
            cmd.append(lnx.utils_vs.version_to_khamake_id[wrd.lnx_project_win_list_vs])

        if lnx.utils.get_legacy_shaders() or 'ios' in state.target:
            if 'html5' in state.target or 'ios' in state.target:
                pass
            else:
                cmd.append('--shaderversion')
                cmd.append('110')
        elif 'android' in state.target or 'html5' in state.target:
            cmd.append('--shaderversion')
            cmd.append('300')
        else:
            cmd.append('--shaderversion')
            cmd.append('330')

        if '_VR' in wrd.world_defs:
            cmd.append('--vr')
            cmd.append('webvr')

        if lnx.utils.get_pref_or_default('khamake_debug', False):
            cmd.append('--debug')

        if lnx.utils.get_rp().rp_renderer == 'Raytracer':
            cmd.append('--raytrace')
            cmd.append('dxr')
            dxc_path = fp + '/HlslShaders/dxc.exe'
            subprocess.Popen([dxc_path, '-Zpr', '-Fo', fp + '/Bundled/raytrace.cso', '-T', 'lib_6_3', fp + '/HlslShaders/raytrace.hlsl']).wait()

        if lnx.utils.get_khamake_threads() != 1:
            cmd.append('--parallelAssetConversion')
            cmd.append(str(lnx.utils.get_khamake_threads()))

        compilation_server = False

        cmd.append('--to')
        if (kha_target_name == 'krom' and not state.is_publish) or (kha_target_name == 'html5' and not state.is_publish):
            cmd.append(lnx.utils.build_dir() + '/debug')
            # Start compilation server
            if kha_target_name == 'krom' and lnx.utils.get_compilation_server() and not assets_only and wrd.lnx_cache_build:
                compilation_server = True
                lnx.lib.server.run_haxe(lnx.utils.get_haxe_path())
        else:
            cmd.append(lnx.utils.build_dir())

        if not wrd.lnx_verbose_output:
            cmd.append("--quiet")

        #Project needs to be compiled at least once
        #before compilation server can work
        if not os.path.exists(lnx.utils.build_dir() + '/debug/krom/krom.js') and not state.is_publish:
            state.proc_build = run_proc(cmd, build_done)
        else:
            if assets_only or compilation_server:
                cmd.append('--nohaxe')
                cmd.append('--noproject')
            if len(wrd.lnx_exporterlist) > 0:
                item = wrd.lnx_exporterlist[wrd.lnx_exporterlist_index]
                if item.lnx_project_khamake != "":
                    for s in item.lnx_project_khamake.split(" "):
                        cmd.append(s)
            state.proc_build = run_proc(cmd, assets_done if compilation_server else build_done)
            if bpy.app.background:
                if state.proc_build.returncode == 0:
                    build_success()
                else:
                    log.error('Build failed')

def build(target, is_play=False, is_publish=False, is_export=False):
    global profile_time
    profile_time = time.time()

    wrd = bpy.data.worlds['Lnx']

    if is_play and wrd.lnx_runtime == 'Hashlink':
        current_os = lnx.utils.get_os()
        if current_os == 'win':
            target = 'windows-hl'
        elif current_os == 'linux':
            target = 'linux-hl'
        elif current_os == 'macos':
            target = 'macos-hl'
        else:
            log.error(f"Unsupported OS '{current_os}' for Hashlink runtime.")

    state.target = target
    state.is_play = is_play
    state.is_publish = is_publish
    state.is_export = is_export

    # Save blend
    if lnx.utils.get_save_on_build():
        bpy.ops.wm.save_mainfile()

    log.clear(clear_warnings=True, clear_errors=True)

    # Set camera in active scene
    active_scene = lnx.utils.get_active_scene()
    if active_scene.camera == None:
        for o in active_scene.objects:
            if o.type == 'CAMERA':
                active_scene.camera = o
                break

    # Get paths
    sdk_path = lnx.utils.get_sdk_path()
    raw_shaders_path = sdk_path + '/leenkx/Shaders/'

    # Set dir
    fp = lnx.utils.get_fp()
    os.chdir(fp)

    # Create directories
    wrd = bpy.data.worlds['Lnx']
    sources_path = 'Sources/' + lnx.utils.safestr(wrd.lnx_project_package)
    if not os.path.exists(sources_path):
        os.makedirs(sources_path)

    # Save external scripts edited inside Blender
    write_texts = False
    for text in bpy.data.texts:
        if text.filepath != '' and text.is_dirty:
            write_texts = True
            break
    if write_texts:
        area = bpy.context.area
        if area is not None:
            old_type = area.type
            area.type = 'TEXT_EDITOR'
            for text in bpy.data.texts:
                if text.filepath != '' and text.is_dirty and os.path.isfile(text.filepath):
                    area.spaces[0].text = text
                    bpy.ops.text.save()
            area.type = old_type

    # Save internal Haxe scripts
    for text in bpy.data.texts:
        if text.filepath == '' and text.name[-3:] == '.hx':
            with open('Sources/' + lnx.utils.safestr(wrd.lnx_project_package) + '/' + text.name, 'w', encoding='utf-8') as f:
                f.write(text.as_string())

    # Export data
    export_data(fp, sdk_path)

    if state.target == 'html5':
        w, h = lnx.utils.get_render_resolution(lnx.utils.get_active_scene())
        write_data.write_indexhtml(w, h, is_publish)
        # Bundle files from include dir
        if os.path.isdir('include'):
            dest  = '/html5/' if is_publish else '/debug/html5/'
            for fn in glob.iglob(os.path.join('include', '**'), recursive=False):
                shutil.copy(fn, lnx.utils.build_dir() + dest + os.path.basename(fn))

def play_done():
    """Called if the player was stopped/terminated."""
    if state.proc_play is not None:
        if state.proc_play.returncode != 0:
            log.warn(f'Player exited code {state.proc_play.returncode}')
    state.proc_play = None
    state.redraw_ui = True
    log.clear()
    live_patch.stop()


_viewport_processes = {}

def _generate_viewport_id(space_data=None):
    """Generate a unique viewport ID from space_data pointer or random."""
    if space_data is not None:
        try:
            return hex(space_data.as_pointer())[-6:]
        except:
            pass
    import random
    return hex(random.randint(0, 0xFFFFFF))[2:].zfill(6)

def _get_viewport_shmem_name(viewport_id):
    """Get shared memory name for a specific viewport."""
    return f"KROM_VIEWPORT_FB_{viewport_id}"

def _kill_viewport_process(viewport_id):
    """Kill a specific viewport's Krom process."""
    global _viewport_processes
    
    if viewport_id in _viewport_processes:
        proc = _viewport_processes[viewport_id]
        try:
            proc.terminate()
            proc.wait(timeout=2)
        except:
            try:
                proc.kill()
            except:
                pass
        del _viewport_processes[viewport_id]

def _kill_all_viewport_processes():
    """Kill all viewport Krom processes."""
    global _viewport_processes
    
    for viewport_id in list(_viewport_processes.keys()):
        _kill_viewport_process(viewport_id)

    if lnx.utils.get_os() == 'win':
        try:
            result = subprocess.run(
                ['tasklist', '/FI', 'IMAGENAME eq Krom.exe', '/FO', 'CSV', '/NH'],
                capture_output=True, text=True, timeout=5
            )
            if 'Krom.exe' in result.stdout:
                subprocess.run(['taskkill', '/F', '/IM', 'Krom.exe'], 
                             capture_output=True, timeout=5)
                import time
                time.sleep(0.3)
        except:
            pass

def run_viewport_runtime(viewport_id, width=1920, height=1080):
    """Launch a viewport which gets its own Krom process with unique shared memory."""
    global _viewport_processes

    if 'Lnx' not in bpy.data.worlds:
        log.warn('No Lnx world found - cannot start viewport server')
        return None, None

    _kill_viewport_process(viewport_id)

    shmem_name = _get_viewport_shmem_name(viewport_id)
    
    wrd = bpy.data.worlds['Lnx']
    krom_location, krom_path = lnx.utils.krom_paths()
    path = lnx.utils.get_fp_build() + '/debug/krom'
    path_resources = path + '-resources'

    if not os.path.exists(path + '/krom.js'):
        log.warn(f'Krom build not found at {path}/krom.js - build project first')
        return None, None
    
    os.chdir(krom_location)
    
    cmd = [krom_path, path, path_resources]
    if lnx.utils.get_os() == 'win':
        cmd.append('--consolepid')
        cmd.append(str(os.getpid()))
    if wrd.lnx_audio == 'Disabled':
        cmd.append('--nosound')

    cmd.append('--viewport-server')
    cmd.append('--shmem')
    cmd.append(shmem_name)
    cmd.append('--viewport-width')
    cmd.append(str(width))
    cmd.append('--viewport-height')
    cmd.append(str(height))
    
    try:
        proc = subprocess.Popen(cmd)
        _viewport_processes[viewport_id] = proc
        log.info(f'Started: {viewport_id} (shmem={shmem_name})')
        return proc, shmem_name
    except Exception as e:
        log.error(f'Failed to start viewport runtime: {e}')
        return None, None

def stop_viewport_runtime(viewport_id):
    """Stop a specific viewport's Krom process."""
    _kill_viewport_process(viewport_id)

_viewport_build_in_progress = False
_viewport_pending_launches = []  # List of (viewport_id, width, height) tuples
_viewport_proc_build = None  # Separate process tracker for viewport builds

def build_viewport(viewport_id, width=1920, height=1080):
    """Build project for viewport"""
    global _viewport_build_in_progress, _viewport_pending_launches, profile_time
    
    wrd = bpy.data.worlds.get('Lnx')
    if not wrd:
        log.warn('No Lnx world found - cannot build for viewport')
        return

    krom_js_path = lnx.utils.get_fp_build() + '/debug/krom/krom.js'
    if os.path.exists(krom_js_path) and not wrd.lnx_recompile:
        log.info(f'Using cached viewport build for {viewport_id}')
        run_viewport_runtime(viewport_id, width, height)
        return

    pending_entry = (viewport_id, width, height)
    if pending_entry not in _viewport_pending_launches:
        _viewport_pending_launches.append(pending_entry)
        log.info(f'Queued viewport {viewport_id} for launch after build')
    
    # If a build is already in progress and there is an actual build process, wait
    # _viewport_proc_build checks viewport ,not state.proc_build (which is for play button)
    if _viewport_build_in_progress:
        if _viewport_proc_build is not None and _viewport_proc_build.poll() is None:
            log.info(f'Build in progress, viewport {viewport_id} will launch when ready')
            return
        else:
            log.info(f'Resetting stale viewport build state')
            _viewport_build_in_progress = False
    
    _viewport_build_in_progress = True
    profile_time = time.time()
    
    log.info(f'Starting viewport build for {len(_viewport_pending_launches)} viewport(s)')
    
    # Set viewport mode flags but not the is_play flag meant for external launcher
    state.is_viewport = True
    state.viewport_width = width
    state.viewport_height = height
    state.target = 'krom'
    state.is_play = False  # NOT play mode
    state.is_publish = False
    state.is_export = False

    log.clear(clear_warnings=True, clear_errors=True)
    
    sdk_path = lnx.utils.get_sdk_path()
    fp = lnx.utils.get_fp()
    os.chdir(fp)

    sources_path = 'Sources/' + lnx.utils.safestr(wrd.lnx_project_package)
    if not os.path.exists(sources_path):
        os.makedirs(sources_path)

    log.info('Exporting scene data...')
    export_data(fp, sdk_path)

    log.info('Starting Krom compilation for viewport...')
    compile_viewport(assets_only=(not wrd.lnx_recompile))

def compile_viewport(assets_only=False):
    """Compile for viewport mode using separate process tracking."""
    global _viewport_proc_build
    
    wrd = bpy.data.worlds['Lnx']
    fp = lnx.utils.get_fp()
    os.chdir(fp)

    node_path = lnx.utils.get_node_path()
    khamake_path = lnx.utils.get_khamake_path()
    cmd = [node_path, khamake_path, 'krom']
    
    ffmpeg_path = lnx.utils.get_ffmpeg_path()
    if ffmpeg_path not in (None, ''):
        cmd.append('--ffmpeg')
        cmd.append(ffmpeg_path)
    
    cmd.append('-g')
    cmd.append(lnx.utils.get_gapi())
    cmd.append('--shaderversion')
    cmd.append('330')
    
    if lnx.utils.get_khamake_threads() != 1:
        cmd.append('--parallelAssetConversion')
        cmd.append(str(lnx.utils.get_khamake_threads()))
    
    cmd.append('--to')
    cmd.append(lnx.utils.build_dir() + '/debug')
    
    if not wrd.lnx_verbose_output:
        cmd.append("--quiet")
    
    if assets_only:
        cmd.append('--nohaxe')
        cmd.append('--noproject')
    
    log.info(f'Running: {" ".join(cmd)}')
    _viewport_proc_build = run_proc(cmd, viewport_build_done)

def viewport_build_done():
    """Called when viewport build completes - launches all pending Krom processes."""
    global _viewport_build_in_progress, _viewport_pending_launches, _viewport_proc_build
    
    log.info('Viewport compilation finished')
    
    if _viewport_proc_build is None:
        _viewport_build_in_progress = False
        return
    
    result = _viewport_proc_build.poll()
    _viewport_proc_build = None
    _viewport_build_in_progress = False
    state.redraw_ui = True
    
    if result == 0:
        bpy.data.worlds['Lnx'].lnx_recompile = False

        if _viewport_pending_launches:
            pending = _viewport_pending_launches.copy()
            _viewport_pending_launches.clear()
            log.info(f'Launching {len(pending)} Krom instance(s)')
            for viewport_id, width, height in pending:
                run_viewport_runtime(viewport_id, width, height)
        else:
            log.info('No pending viewports to launch')
    else:
        _viewport_pending_launches.clear()
        log.error('Viewport build failed, check console')

def play_viewport(viewport_id, width=1920, height=1080):
    """Launch Krom in a viewport"""
    global _viewport_build_in_progress, _viewport_pending_launches, _viewport_proc_build
    
    if not viewport_id:
        log.error('No viewport_id: play_viewport requires an id')
        return

    if 'Lnx' not in bpy.data.worlds:
        log.error('No Lnx world found - cannot start viewport server')
        return
    
    wrd = bpy.data.worlds['Lnx']

    krom_js_path = lnx.utils.get_fp_build() + '/debug/krom/krom.js'
    if os.path.exists(krom_js_path) and not wrd.lnx_recompile:
        run_viewport_runtime(viewport_id, width, height)
        return

    pending_entry = (viewport_id, width, height)
    if pending_entry not in _viewport_pending_launches:
        _viewport_pending_launches.append(pending_entry)

    if _viewport_build_in_progress:
        if _viewport_proc_build is not None and _viewport_proc_build.poll() is None:
            log.info(f'Build in progress, viewport {viewport_id} will launch when ready')
            return
        else:
            _viewport_build_in_progress = False  # Reset stale state

    _viewport_build_in_progress = True

    sdk_path = lnx.utils.get_sdk_path()
    fp = lnx.utils.get_fp()
    os.chdir(fp)

    sources_path = 'Sources/' + lnx.utils.safestr(wrd.lnx_project_package)
    if not os.path.exists(sources_path):
        os.makedirs(sources_path)
    
    # export data same as play() but without setting state.is_play
    state.target = 'krom'
    state.is_publish = False
    state.is_export = False
    export_data(fp, sdk_path)

    compile_viewport(assets_only=(not wrd.lnx_recompile))


def stop_viewport(viewport_id=None):
    """Stop a specific viewport or all viewports."""
    if viewport_id:
        _kill_viewport_process(viewport_id)
    else:
        _kill_all_viewport_processes()

def assets_done():
    if state.proc_build == None:
        return
    result = state.proc_build.poll()
    if result == 0:
        # Connect to the compilation server
        os.chdir(lnx.utils.build_dir() + '/debug/')
        cmd = [lnx.utils.get_haxe_path(), '--connect', '6000', 'project-krom.hxml']
        state.proc_build = run_proc(cmd, compilation_server_done)
    else:
        state.proc_build = None
        state.redraw_ui = True
        log.error('Build failed, check console')

def compilation_server_done():
    if state.proc_build == None:
        return
    result = state.proc_build.poll()
    if result == 0:
        if os.path.exists('krom/krom.js.temp'):
            os.chmod('krom/krom.js', stat.S_IWRITE)
            os.remove('krom/krom.js')
            os.rename('krom/krom.js.temp', 'krom/krom.js')
        build_done()
    else:
        state.proc_build = None
        state.redraw_ui = True
        log.error('Build failed, check console')

def build_done():
    wrd = bpy.data.worlds['Lnx']
    log.info('Finished in {:0.3f}s'.format(time.time() - profile_time))
    if log.num_warnings > 0:
        log.print_warn(f'{log.num_warnings} warning{"s" if log.num_warnings > 1 else ""} occurred during compilation')
    if state.proc_build is None:
        return
    result = state.proc_build.poll()
    state.proc_build = None
    state.redraw_ui = True
    if result == 0:
        bpy.data.worlds['Lnx'].lnx_recompile = False
        build_success()
    else:
        log.error('Build failed, check console')


def runtime_to_target():
    wrd = bpy.data.worlds['Lnx']
    if wrd.lnx_runtime == 'Krom':
        return 'krom'
    return 'html5'

def get_khajs_path(target):
    if target == 'krom':
        return lnx.utils.build_dir() + '/debug/krom/krom.js'
    return lnx.utils.build_dir() + '/debug/html5/kha.js'

def play():
    global scripts_mtime
    wrd = bpy.data.worlds['Lnx']

    build(target=runtime_to_target(), is_play=True)

    khajs_path = get_khajs_path(state.target)
    if not wrd.lnx_cache_build or \
       not os.path.isfile(khajs_path) or \
       assets.khafile_defs_last != assets.khafile_defs or \
       state.last_target != state.target:
        wrd.lnx_recompile = True

    state.last_target = state.target

    # Trait sources modified
    state.mod_scripts = []
    script_path = lnx.utils.get_fp() + '/Sources/' + lnx.utils.safestr(wrd.lnx_project_package)
    if os.path.isdir(script_path):
        new_mtime = scripts_mtime
        for fn in glob.iglob(os.path.join(script_path, '**', '*.hx'), recursive=True):
            mtime = os.path.getmtime(fn)
            if scripts_mtime < mtime:
                lnx.utils.fetch_script_props(fn) # Trait props
                fn = fn.split('Sources/')[1]
                fn = fn[:-3] #.hx
                fn = fn.replace('/', '.')
                state.mod_scripts.append(fn)
                wrd.lnx_recompile = True
                if new_mtime < mtime:
                    new_mtime = mtime
        scripts_mtime = new_mtime
        if len(state.mod_scripts) > 0: # Trait props
            lnx.utils.fetch_trait_props()

    compile(assets_only=(not wrd.lnx_recompile))

def build_success():
    log.clear()
    wrd = bpy.data.worlds['Lnx']

    if state.is_play:
        cmd = []
        width, height = lnx.utils.get_render_resolution(lnx.utils.get_active_scene())
        if wrd.lnx_runtime == 'Browser':
            os.chdir(lnx.utils.get_fp())
            prefs = lnx.utils.get_lnx_preferences()
            build_dir = lnx.utils.build_dir()
            path = '{}/debug/html5/'.format(build_dir)
            browser = webbrowser.get()
            browsername = None
            if hasattr(browser, "name"):
                browsername = getattr(browser,'name')
            elif hasattr(browser,"_name"):
                browsername = getattr(browser,'_name')
            envvar = 'LEENKX_PLAY_HTML5'
            if envvar in os.environ:
                envcmd = os.environ[envvar]
                if len(envcmd) == 0:
                    log.warn(f"Your {envvar} environment variable is set to an empty string")
                else:
                    host = 'localhost'
                    t = threading.Thread(name='localserver',
                        target=lnx.lib.server.run_tcp,
                        args=(prefs.html5_server_port,
                        prefs.html5_server_log),
                        daemon=True)
                    t.start()
                    url = 'http://{}:{}/{}'.format(host, prefs.html5_server_port, path)
                    tplstr = Template(envcmd).safe_substitute({
                        'host': host,
                        'port': prefs.html5_server_port,
                        'width': width,
                        'height': height,
                        'url': url,
                        'path': path,
                        'dir': build_dir,
                        'browser': browsername
                    })
                    cmd = re.split(' +', tplstr)
            if len(cmd) == 0:
                # try file:// protocol with a Chromium-based browser
                fast = browsername if browsername and any(b in browsername.lower() for b in ('chrome', 'chromium', 'edge', 'msedge')) else lnx.utils.find_browser()
                if fast is not None:
                    file_url = 'file:///' + os.path.abspath(path + 'index.html').replace('\\', '/')
                    subprocess.Popen([fast, '--allow-file-access-from-files', '--no-first-run',
                                      '--user-data-dir=' + os.path.join(tempfile.gettempdir(), 'leenkx_browser'),
                                      file_url])
                    return
                host = 'localhost'
                t = threading.Thread(name='localserver',
                    target=lnx.lib.server.run_tcp,
                    args=(prefs.html5_server_port,
                    prefs.html5_server_log),
                    daemon=True)
                t.start()
                url = 'http://{}:{}/{}'.format(host, prefs.html5_server_port, path)
                if browsername in (None, '', 'default'):
                    webbrowser.open(url)
                    return
                else:
                    cmd = [browsername, url]
        elif wrd.lnx_runtime == 'Krom':
            if wrd.lnx_live_patch:
                live_patch.start()
                open(lnx.utils.get_fp_build() + '/debug/krom/krom.patch', 'w', encoding='utf-8').close()
            krom_location, krom_path = lnx.utils.krom_paths()
            path = lnx.utils.get_fp_build() + '/debug/krom'
            path_resources = path + '-resources'
            pid = os.getpid()
            os.chdir(krom_location)
            envvar = 'LEENKX_PLAY_KROM'
            if envvar in os.environ:
                envcmd = os.environ[envvar]
                if len(envcmd) == 0:
                    log.warn(f"Your {envvar} environment variable is set to an empty string")
                else:
                    tplstr = Template(envcmd).safe_substitute({
                        'pid': pid,
                        'audio': wrd.lnx_audio != 'Disabled',
                        'location': krom_location,
                        'krom_path': krom_path,
                        'path': path,
                        'resources': path_resources,
                        'width': width,
                        'height': height
                    })
                    cmd = re.split(' +', tplstr)
            if len(cmd) == 0:
                cmd = [krom_path, path, path_resources]
                if lnx.utils.get_os() == 'win':
                    cmd.append('--consolepid')
                    cmd.append(str(pid))
                if wrd.lnx_audio == 'Disabled':
                    cmd.append('--nosound')
                if state.is_viewport:
                    cmd.append('--viewport-server')
                    cmd.append('--shmem')
                    if state.viewport_id:
                        cmd.append(f'KROM_VIEWPORT_FB_{state.viewport_id}')
                    else:
                        cmd.append('KROM_VIEWPORT_FB')
                    cmd.append('--viewport-width')
                    cmd.append(str(state.viewport_width))
                    cmd.append('--viewport-height')
                    cmd.append(str(state.viewport_height))
                    
        elif state.target.startswith(('windows-hl', 'linux-hl', 'macos-hl')):
            log.info(f"Runtime Hashlink/C target: {state.target}")

            hl_build_dir, _, _ = lnx.utils.hashlink_paths(state.target)

            if not hl_build_dir:
                 log.error(f"Could not find build directory for target {state.target}. Playback aborted.")
                 return 

            if state.target == 'windows-hl':
                vs_version_major = wrd.lnx_project_win_list_vs
                build_mode = wrd.lnx_project_win_build_mode # Debug or Release
                build_arch = wrd.lnx_project_win_build_arch # x64 or x86 (maps to Win32 for MSBuild)
                platform = 'x64' if build_arch == 'x64' else 'Win32' # MSBuild uses Win32 for x86

                installation = lnx.utils_vs.get_installed_version(vs_version_major, re_fetch=True)
                if installation is None:
                    vs_info = lnx.utils_vs.get_supported_version(vs_version_major)
                    log.error(f'Visual Studio {vs_info["name"]} not found. Cannot compile {state.target}.')
                    return
                msbuild_path = os.path.join(installation['path'], 'MSBuild', 'Current', 'Bin', 'MSBuild.exe')
                if not os.path.isfile(msbuild_path):
                    msbuild_path = os.path.join(installation['path'], 'MSBuild', '15.0', 'Bin', 'MSBuild.exe') # VS 2017 fallback
                    if not os.path.isfile(msbuild_path):
                         log.error(f'MSBuild.exe not found for {installation["name"]}. Cannot compile {state.target}.')
                         return

                proj_name = lnx.utils.blend_name()
                vcxproj_path = os.path.join(hl_build_dir, proj_name + '.vcxproj')
                if not os.path.isfile(vcxproj_path):
                    found_vcxproj = None
                    for file in os.listdir(hl_build_dir):
                        if file.endswith(".vcxproj"):
                            found_vcxproj = os.path.join(hl_build_dir, file)
                            log.warn(f"Could not find '{proj_name}.vcxproj', using found '{file}' instead.")
                            break
                    if not found_vcxproj:
                        log.error(f'.vcxproj file not found in {hl_build_dir}. Cannot compile.')
                        return
                    vcxproj_path = found_vcxproj
                    proj_name = os.path.splitext(os.path.basename(vcxproj_path))[0] 

                msbuild_cmd = [
                    msbuild_path,
                    vcxproj_path,
                    f'/p:Configuration={build_mode}',
                    f'/p:Platform={platform}',
                    '/m' 
                ]

                log.info(f"Compiling {state.target} project with MSBuild...")
                log.info(f"Command: {' '.join(msbuild_cmd)}")
                compile_success = False
                try:
                    compile_result = subprocess.run(msbuild_cmd, cwd=hl_build_dir, check=False, capture_output=True, text=True)
                    if compile_result.returncode == 0:
                        log.info(f"MSBuild compilation successful.")
                        compile_success = True
                    else:
                        log.error(f"MSBuild compilation failed (Exit Code: {compile_result.returncode}).")
                        log.error(f"MSBuild Output:\n{compile_result.stdout}")
                        log.error(f"MSBuild Errors:\n{compile_result.stderr}")
                except Exception as e:
                    log.error(f"Error running MSBuild: {e}")
                    traceback.print_exc()

                if not compile_success:
                    return

                exe_path = os.path.join(hl_build_dir, platform, build_mode, proj_name + '.exe')
                if not os.path.isfile(exe_path):
                    exe_path = os.path.join(hl_build_dir, build_mode, proj_name + '.exe')
                    if not os.path.isfile(exe_path):
                        log.error(f'Compiled executable not found at expected location: {exe_path} (or variants). Cannot run.')
                        return

                log.info(f"Found compiled executable: {exe_path}")
                
                dest_exe_name = proj_name + '.exe'
                base_build_dir = lnx.utils.get_fp_build()
                dest_dir = os.path.join(base_build_dir, state.target)
                dest_path = os.path.join(dest_dir, dest_exe_name)
                try:
                    shutil.move(exe_path, dest_path)
                    cmd = [dest_path]
                except Exception as e:
                    cmd = [exe_path]
                os.chdir(dest_dir)

            elif state.target in ('linux-hl', 'macos-hl'):
                wrd = bpy.data.worlds['Lnx']
                paths = lnx.utils.hashlink_paths(state.target)
                hl_build_dir = paths[0]
                # TO DO switch from default Release
                build_mode = 'Release'
                proj_name = lnx.utils.blend_name()
                exe_path = str(hl_build_dir + "/" + build_mode) 
                if not exe_path:
                    log.error(f"Build finished, but could not find the executable for {state.target}.")
                    return
                makefile_path = os.path.join(exe_path, 'makefile')
                if not os.path.isfile(makefile_path):
                    log.error(f"Makefile not found at '{makefile_path}'. Cannot compile C code.")
                    return

                make_cmd = ['make']

                log.info(f"Compiling C code using 'make' in directory '{exe_path}'...")
                log.info(f"Make command: {' '.join(make_cmd)}")
                try:
                    result = subprocess.run(make_cmd, cwd=exe_path, check=True, capture_output=True, text=True, encoding='utf-8')
                    log.info("'make' compilation successful.")
                except subprocess.CalledProcessError as e:
                    log.error(f"'make' compilation failed with return code {e.returncode}.")
                    log.error(f"Make Error Output:\n{e.stderr}")
                    return 
                except FileNotFoundError:
                    log.error("'make' command not found. Ensure 'make' is installed and in your system's PATH.")
                    return
                except Exception as e:
                    log.error(f"An unexpected error occurred running make: {e}")
                    return

                log.info(f"Found compiled executable: {exe_path}")

                dest_exe_name = lnx.utils.safesrc(wrd.lnx_project_name + '-' + wrd.lnx_project_version)
                base_build_dir = lnx.utils.get_fp_build()
                dest_dir = os.path.join(base_build_dir, state.target) 
                og_path = os.path.join(exe_path, dest_exe_name)
                dest_path = os.path.join(dest_dir, dest_exe_name)
                os.makedirs(dest_dir, exist_ok=True)

                try:
                    log.info(f"Moving '{og_path}' to '{dest_dir}'...")
                    shutil.move(og_path, dest_dir) 
                    cmd = [dest_path] 
                except Exception as e:
                    log.error(f"Failed to move executable: {e}. Attempting to run from original location.")
                    cmd = [exe_path]
                os.chdir(dest_dir)
                log.info(f"Hashlink final command: {' '.join(cmd)}")
        try:
            state.proc_play = run_proc(cmd, play_done)
        except Exception:
            traceback.print_exc()
            log.warn('Failed to start player, command and exception have been printed to console above')
            if wrd.lnx_runtime == 'Browser':
                webbrowser.open(url)

    elif state.is_publish:
        sdk_path = lnx.utils.get_sdk_path()
        target_name = lnx.utils.get_kha_target(state.target)
        files_path = os.path.join(lnx.utils.get_fp_build(), target_name)

        if target_name in ('html5', 'krom') and wrd.lnx_minify_js:
            # Minify JS
            minifier_path = sdk_path + '/lib/leenkx_tools/uglifyjs/bin/uglifyjs'
            if target_name == 'html5':
                jsfile = files_path + '/kha.js'
            else:
                jsfile = files_path + '/krom.js'
            args = [lnx.utils.get_node_path(), minifier_path, jsfile, '-o', jsfile]
            proc = subprocess.Popen(args)
            proc.wait()

        if target_name == 'krom':
            # Copy Krom binaries
            if state.target == 'krom-windows':
                gapi = state.export_gapi
                ext = '' if gapi == 'direct3d11' else '_' + gapi
                krom_location = sdk_path + '/Krom/Krom' + ext + '.exe'
                shutil.copy(krom_location, files_path + '/Krom.exe')
                krom_exe = lnx.utils.safestr(wrd.lnx_project_name) + '.exe'
                os.rename(files_path + '/Krom.exe', files_path + '/' + krom_exe)
            elif state.target == 'krom-linux':
                krom_location = sdk_path + '/Krom/Krom'
                shutil.copy(krom_location, files_path)
                krom_exe = lnx.utils.safestr(wrd.lnx_project_name)
                os.rename(files_path + '/Krom', files_path + '/' + krom_exe)
                krom_exe = './' + krom_exe
            else:
                krom_location = sdk_path + '/Krom/Krom.app'
                shutil.copytree(krom_location, files_path + '/Krom.app')
                game_files = os.listdir(files_path)
                for f in game_files:
                    f = files_path + '/' + f
                    if os.path.isfile(f):
                        shutil.move(f, files_path + '/Krom.app/Contents/MacOS')
                krom_exe = lnx.utils.safestr(wrd.lnx_project_name) + '.app'
                os.rename(files_path + '/Krom.app', files_path + '/' + krom_exe)

            # Rename
            ext = state.target.split('-')[-1] # krom-windows
            new_files_path = files_path + '-' + ext
            os.rename(files_path, new_files_path)
            files_path = new_files_path

        if target_name == 'html5':
            project_path = files_path
            print('Exported HTML5 package to ' + project_path)
        elif target_name.startswith('ios') or target_name.startswith('osx'): # TODO: to macos
            project_path = files_path + '-build'
            print('Exported XCode project to ' + project_path)
        elif target_name.startswith('windows'):
            project_path = files_path + '-build'
            vs_info = lnx.utils_vs.get_supported_version(wrd.lnx_project_win_list_vs)
            print(f'Exported {vs_info["name"]} project to {project_path}')
        elif target_name.startswith('android'):
            project_name = lnx.utils.safesrc(wrd.lnx_project_name + '-' + wrd.lnx_project_version)
            project_path = os.path.join(files_path + '-build', project_name)
            print('Exported Android Studio project to ' + project_path)
        elif target_name.startswith('krom'):
            project_path = files_path
            print('Exported Krom package to ' + project_path)
        else:
            project_path = files_path + '-build'
            print('Exported makefiles to ' + project_path)

        if not bpy.app.background and lnx.utils.get_lnx_preferences().open_build_directory:
            lnx.utils.open_folder(project_path)

        # Android build APK
        if target_name.startswith('android'):
            if (lnx.utils.get_project_android_build_apk()) and (len(lnx.utils.get_android_sdk_root_path()) > 0):
                print("\nBuilding APK")
                # Check settings
                path_sdk = lnx.utils.get_android_sdk_root_path()
                if len(path_sdk) > 0:
                    # Check Environment Variables - ANDROID_SDK_ROOT
                    if os.getenv('ANDROID_SDK_ROOT') is None:
                        # Set value from settings
                        os.environ['ANDROID_SDK_ROOT'] = path_sdk
                else:
                    project_path = ''

                # Build start
                if len(project_path) > 0:
                    os.chdir(project_path) # set work folder
                    if lnx.utils.get_os_is_windows():
                        state.proc_publish_build = run_proc(os.path.join(project_path, "gradlew.bat assembleDebug"), done_gradlew_build)
                    else:
                        cmd = shlex.split(os.path.join(project_path, "gradlew assembleDebug"))
                        state.proc_publish_build = run_proc(cmd, done_gradlew_build)
                else:
                    print('\nBuilding APK Warning: ANDROID_SDK_ROOT is not specified in environment variables and "Android SDK Path" setting is not specified in preferences: \n- If you specify an environment variable ANDROID_SDK_ROOT, then you need to restart Blender;\n- If you specify the setting "Android SDK Path" in the preferences, then repeat operation "Publish"')

        # HTML5 After Publish
        if target_name.startswith('html5'):
            if len(lnx.utils.get_html5_copy_path()) > 0 and (wrd.lnx_project_html5_copy):
                project_name = lnx.utils.safesrc(wrd.lnx_project_name +'-'+ wrd.lnx_project_version)
                dst = os.path.join(lnx.utils.get_html5_copy_path(), project_name)
                if os.path.exists(dst):
                    shutil.rmtree(dst)
                try:
                    shutil.copytree(project_path, dst)
                    print("Copied files to " + dst)
                except OSError as exc:
                    if exc.errno == errno.ENOTDIR:
                        shutil.copy(project_path, dst)
                    else: raise
                if len(lnx.utils.get_link_web_server()) and (wrd.lnx_project_html5_start_browser):
                    link_html5_app = lnx.utils.get_link_web_server() +'/'+ project_name
                    print("Running a browser with a link " + link_html5_app)
                    webbrowser.open(link_html5_app)

        # Windows After Publish
        if target_name.startswith('windows') and wrd.lnx_project_win_build != 'nothing' and lnx.utils.get_os_is_windows():
            project_name = lnx.utils.safesrc(wrd.lnx_project_name + '-' + wrd.lnx_project_version)

            # Open in Visual Studio
            if wrd.lnx_project_win_build == 'open':
                print('\nOpening in Visual Studio: ' + lnx.utils_vs.get_sln_path())
                _ = lnx.utils_vs.open_project_in_vs(wrd.lnx_project_win_list_vs)

            # Compile
            elif wrd.lnx_project_win_build.startswith('compile'):
                if wrd.lnx_project_win_build == 'compile':
                    print('\nCompiling project ' + lnx.utils_vs.get_vcxproj_path())
                elif wrd.lnx_project_win_build == 'compile_and_run':
                    print('\nCompiling and running project ' + lnx.utils_vs.get_vcxproj_path())

                success = lnx.utils_vs.enable_vsvars_env(wrd.lnx_project_win_list_vs, done_vs_vars)
                if not success:
                    state.redraw_ui = True
                    log.error('Compile failed, check console')


def done_gradlew_build():
    if state.proc_publish_build is None:
        return
    result = state.proc_publish_build.poll()
    if result == 0:
        state.proc_publish_build = None

        wrd = bpy.data.worlds['Lnx']
        path_apk = os.path.join(lnx.utils.get_fp_build(), lnx.utils.get_kha_target(state.target))
        project_name = lnx.utils.safesrc(wrd.lnx_project_name +'-'+ wrd.lnx_project_version)
        path_apk = os.path.join(path_apk + '-build', project_name, 'app', 'build', 'outputs', 'apk', 'debug')

        print("\nBuild APK to " + path_apk)
        # Rename APK
        apk_name = 'app-debug.apk'
        file_name = os.path.join(path_apk, apk_name)
        if wrd.lnx_project_android_rename_apk:
            apk_name = project_name + '.apk'
            os.rename(file_name, os.path.join(path_apk, apk_name))
            file_name = os.path.join(path_apk, apk_name)
            print("\nRename APK to " + apk_name)
        # Copy APK
        if wrd.lnx_project_android_copy_apk:
            shutil.copyfile(file_name, os.path.join(lnx.utils.get_android_apk_copy_path(), apk_name))
            print("Copy APK to " + lnx.utils.get_android_apk_copy_path())
        # Open directory with APK
        if lnx.utils.get_android_open_build_apk_directory():
            lnx.utils.open_folder(path_apk)
        # Open directory after copy APK
        if lnx.utils.get_android_apk_copy_open_directory():
            lnx.utils.open_folder(lnx.utils.get_android_apk_copy_path())
        # Running emulator
        if wrd.lnx_project_android_run_avd:
            run_android_emulators(lnx.utils.get_android_emulator_name())
        state.redraw_ui = True
    else:
        state.proc_publish_build = None
        state.redraw_ui = True
        os.environ['ANDROID_SDK_ROOT'] = ''
        log.error('Building the APK failed, check console')

def run_android_emulators(avd_name):
    if len(avd_name.strip()) == 0:
        return
    print('\nRunning Emulator "'+ avd_name +'"')
    path_file = lnx.utils.get_android_emulator_file()
    if len(path_file) > 0:
        if lnx.utils.get_os_is_windows():
            run_proc(path_file + " -avd "+ avd_name, None)
        else:
            cmd = shlex.split(path_file + " -avd "+ avd_name)
            run_proc(cmd, None)
    else:
        print('Update List Emulators Warning: File "'+ path_file +'" not found. Check that the variable ANDROID_SDK_ROOT is correct in environment variables or in "Android SDK Path" setting: \n- If you specify an environment variable ANDROID_SDK_ROOT, then you need to restart Blender;\n- If you specify the setting "Android SDK Path", then repeat operation "Publish"')


def done_vs_vars():
    if state.proc_publish_build is None:
        return

    result = state.proc_publish_build.poll()
    if result == 0:
        state.proc_publish_build = None

        wrd = bpy.data.worlds['Lnx']
        success = lnx.utils_vs.compile_in_vs(wrd.lnx_project_win_list_vs, done_vs_build)
        if not success:
            state.proc_publish_build = None
            state.redraw_ui = True
            log.error('Compile failed, check console')
    else:
        state.proc_publish_build = None
        state.redraw_ui = True
        log.error('Compile failed, check console')


def done_vs_build():
    if state.proc_publish_build is None:
        return

    result = state.proc_publish_build.poll()
    if result == 0:
        state.proc_publish_build = None

        wrd = bpy.data.worlds['Lnx']
        project_path = os.path.join(lnx.utils.get_fp_build(), lnx.utils.get_kha_target(state.target)) + '-build'
        if wrd.lnx_project_win_build_arch == 'x64':
            path = os.path.join(project_path, 'x64', wrd.lnx_project_win_build_mode)
        else:
            path = os.path.join(project_path, wrd.lnx_project_win_build_mode)
        print('\nCompilation completed in ' + path)
        # Run
        if wrd.lnx_project_win_build == 'compile_and_run':
            # Copying the executable file
            res_path = os.path.join(lnx.utils.get_fp_build(), lnx.utils.get_kha_target(state.target))
            file_name = lnx.utils.safesrc(wrd.lnx_project_name +'-'+ wrd.lnx_project_version) + '.exe'
            print('\nCopy the executable file from ' + path + ' to ' + res_path)
            shutil.copyfile(os.path.join(path, file_name), os.path.join(res_path, file_name))
            path = res_path
            # Run project
            cmd = os.path.join('"' + res_path, file_name + '"')
            print('Run the executable file to ' + cmd)
            os.chdir(res_path) # set work folder
            subprocess.Popen(cmd, shell=True)
        # Open Build Directory
        if wrd.lnx_project_win_build_open:
            lnx.utils.open_folder(path)
        state.redraw_ui = True
    else:
        state.proc_publish_build = None
        state.redraw_ui = True
        log.error('Compile failed, check console')

def clean():
    os.chdir(lnx.utils.get_fp())
    wrd = bpy.data.worlds['Lnx']

    # Remove build and compiled data
    try:
        if os.path.isdir(lnx.utils.build_dir()):
            shutil.rmtree(lnx.utils.build_dir(), onerror=remove_readonly)
        if os.path.isdir(lnx.utils.get_fp() + '/build'): # Kode Studio build dir
            shutil.rmtree(lnx.utils.get_fp() + '/build', onerror=remove_readonly)
    except:
        print('Leenkx Warning: Some files in the build folder are locked')

    # Remove compiled nodes
    pkg_dir = lnx.utils.safestr(wrd.lnx_project_package).replace('.', '/')
    nodes_path = 'Sources/' + pkg_dir + '/node/'
    if os.path.isdir(nodes_path):
        shutil.rmtree(nodes_path, onerror=remove_readonly)

    # Remove khafile/Main.hx
    if os.path.isfile('khafile.js'):
        os.remove('khafile.js')
    if os.path.isfile('Sources/Main.hx'):
        os.remove('Sources/Main.hx')

    # Remove Sources/ dir if empty
    if os.path.exists('Sources/' + pkg_dir) and os.listdir('Sources/' + pkg_dir) == []:
        shutil.rmtree('Sources/' + pkg_dir, onerror=remove_readonly)
        if os.path.exists('Sources') and os.listdir('Sources') == []:
            shutil.rmtree('Sources/', onerror=remove_readonly)

    # Remove Shape key Textures
    if os.path.exists('MorphTargets/'):
        shutil.rmtree('MorphTargets/', onerror=remove_readonly)

    # To recache signatures for batched materials
    for mat in bpy.data.materials:
        mat.signature = ''
        mat.lnx_cached = False

    # Restart compilation server
    if lnx.utils.get_compilation_server():
        lnx.lib.server.kill_haxe()

    log.info('Project cleaned')