add license, move folders

app/scripts/sandbox/sandbox_manager.gd

@@ -0,0 +1,93 @@
+extends Node
+class_name SandboxManager
+
+@export var gate_events: GateEvents
+@export var render_result: RenderResult
+@export var snbx_executable: SandboxExecutable
+@export var snbx_env: SandboxEnv
+
+var sandbox_pid: int
+
+
+func _ready() -> void:
+	gate_events.gate_loaded.connect(start_sandbox)
+
+
+func start_sandbox(gate: Gate) -> void:
+	match Platform.get_platform():
+		Platform.WINDOWS:
+			start_sandbox_windows(gate)
+		Platform.LINUX_BSD:
+			start_sandbox_linux(gate)
+		_:
+			assert(false, "Platform is not supported")
+
+
+func start_sandbox_linux(gate: Gate) -> void:
+	if not snbx_executable.exists():
+		Debug.logerr("Sandbox executable not found at " + snbx_executable.path); return
+	if not snbx_env.zip_exists():
+		Debug.logerr("Sandbox environment not found at " + snbx_env.zip_path); return
+	
+	snbx_env.create_env(snbx_executable.path, gate)
+	
+	var args = [
+		snbx_env.start.get_base_dir(), # cd to dir
+		"--main-pack", snbx_env.main_pack,
+		"--resolution", "%dx%d" % [render_result.width, render_result.height],
+		"--verbose"
+	]
+	Debug.logclr(snbx_env.start + " " + " ".join(args), Color.DARK_VIOLET)
+	sandbox_pid = OS.create_process(snbx_env.start, args)
+	
+	gate_events.gate_entered_emit()
+
+
+func start_sandbox_windows(gate: Gate) -> void:
+	if not snbx_executable.exists():
+		Debug.logerr("Sandbox executable not found at " + snbx_executable.path); return
+	
+	var pack_file = ProjectSettings.globalize_path(gate.resource_pack)
+	var shared_libs = ProjectSettings.globalize_path(gate.shared_libs_dir)
+	var args = [
+		"--main-pack", pack_file,
+		"--gdext-libs-dir", shared_libs,
+		"--resolution", "%dx%d" % [render_result.width, render_result.height]
+	]
+	Debug.logclr(snbx_executable.path + " " + " ".join(args), Color.DARK_VIOLET)
+	sandbox_pid = OS.create_process(snbx_executable.path, args)
+	
+	gate_events.gate_entered_emit()
+
+
+func kill_sandbox() -> void:
+	match Platform.get_platform():
+		Platform.WINDOWS:
+			kill_sandbox_windows()
+		Platform.LINUX_BSD:
+			kill_sandbox_linux()
+		_:
+			assert(false, "Platform is not supported")
+
+
+func kill_sandbox_linux() -> void:
+	if sandbox_pid == 0: return
+	
+	var pids = snbx_env.get_subprocesses(sandbox_pid)
+	pids.append(sandbox_pid)
+	
+	for pid in pids:
+		OS.kill(pid)
+		Debug.logclr("Process killed " + str(pid), Color.DIM_GRAY)
+	
+	snbx_env.clean()
+
+
+func kill_sandbox_windows() -> void:
+	if OS.is_process_running(sandbox_pid):
+		OS.kill(sandbox_pid)
+		Debug.logclr("Process killed " + str(sandbox_pid), Color.DIM_GRAY)
+
+
+func _exit_tree() -> void:
+	kill_sandbox()