docs

_downloads/988fdf9bf1fed6991e760aadf423d3df/SConstruct

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+#!python
+import os
+
+opts = Variables([], ARGUMENTS)
+
+# Gets the standard flags CC, CCX, etc.
+env = DefaultEnvironment()
+
+# Define our options
+opts.Add(EnumVariable('target', "Compilation target", 'debug', ['d', 'debug', 'r', 'release']))
+opts.Add(EnumVariable('platform', "Compilation platform", '', ['', 'windows', 'x11', 'linux', 'osx']))
+opts.Add(EnumVariable('p', "Compilation target, alias for 'platform'", '', ['', 'windows', 'x11', 'linux', 'osx']))
+opts.Add(BoolVariable('use_llvm', "Use the LLVM / Clang compiler", 'no'))
+opts.Add(PathVariable('target_path', 'The path where the lib is installed.', 'demo/bin/'))
+opts.Add(PathVariable('target_name', 'The library name.', 'libgdexample', PathVariable.PathAccept))
+
+# Local dependency paths, adapt them to your setup
+godot_headers_path = "godot-cpp/godot-headers/"
+cpp_bindings_path = "godot-cpp/"
+cpp_library = "libgodot-cpp"
+
+# only support 64 at this time..
+bits = 64
+
+# Updates the environment with the option variables.
+opts.Update(env)
+
+# Process some arguments
+if env['use_llvm']:
+    env['CC'] = 'clang'
+    env['CXX'] = 'clang++'
+
+if env['p'] != '':
+    env['platform'] = env['p']
+
+if env['platform'] == '':
+    print("No valid target platform selected.")
+    quit();
+
+# For the reference:
+# - CCFLAGS are compilation flags shared between C and C++
+# - CFLAGS are for C-specific compilation flags
+# - CXXFLAGS are for C++-specific compilation flags
+# - CPPFLAGS are for pre-processor flags
+# - CPPDEFINES are for pre-processor defines
+# - LINKFLAGS are for linking flags
+
+# Check our platform specifics
+if env['platform'] == "osx":
+    env['target_path'] += 'osx/'
+    cpp_library += '.osx'
+    env.Append(CCFLAGS=['-arch', 'x86_64'])
+    env.Append(CXXFLAGS=['-std=c++17'])
+    env.Append(LINKFLAGS=['-arch', 'x86_64'])
+    if env['target'] in ('debug', 'd'):
+        env.Append(CCFLAGS=['-g', '-O2'])
+    else:
+        env.Append(CCFLAGS=['-g', '-O3'])
+
+elif env['platform'] in ('x11', 'linux'):
+    env['target_path'] += 'x11/'
+    cpp_library += '.linux'
+    env.Append(CCFLAGS=['-fPIC'])
+    env.Append(CXXFLAGS=['-std=c++17'])
+    if env['target'] in ('debug', 'd'):
+        env.Append(CCFLAGS=['-g3', '-Og'])
+    else:
+        env.Append(CCFLAGS=['-g', '-O3'])
+
+elif env['platform'] == "windows":
+    env['target_path'] += 'win64/'
+    cpp_library += '.windows'
+    # This makes sure to keep the session environment variables on windows,
+    # that way you can run scons in a vs 2017 prompt and it will find all the required tools
+    env.Append(ENV=os.environ)
+
+    env.Append(CPPDEFINES=['WIN32', '_WIN32', '_WINDOWS', '_CRT_SECURE_NO_WARNINGS'])
+    env.Append(CCFLAGS=['-W3', '-GR'])
+    env.Append(CXXFLAGS='/std:c++17')
+    if env['target'] in ('debug', 'd'):
+        env.Append(CPPDEFINES=['_DEBUG'])
+        env.Append(CCFLAGS=['-EHsc', '-MDd', '-ZI'])
+        env.Append(LINKFLAGS=['-DEBUG'])
+    else:
+        env.Append(CPPDEFINES=['NDEBUG'])
+        env.Append(CCFLAGS=['-O2', '-EHsc', '-MD'])
+
+if env['target'] in ('debug', 'd'):
+    cpp_library += '.debug'
+else:
+    cpp_library += '.release'
+
+cpp_library += '.' + str(bits)
+
+# make sure our binding library is properly includes
+env.Append(CPPPATH=['.', godot_headers_path, cpp_bindings_path + 'include/', cpp_bindings_path + 'include/core/', cpp_bindings_path + 'include/gen/'])
+env.Append(LIBPATH=[cpp_bindings_path + 'bin/'])
+env.Append(LIBS=[cpp_library])
+
+# tweak this if you want to use different folders, or more folders, to store your source code in.
+env.Append(CPPPATH=['src/'])
+sources = Glob('src/*.cpp')
+
+library = env.SharedLibrary(target=env['target_path'] + env['target_name'] , source=sources)
+
+Default(library)
+
+# Generates help for the -h scons option.
+Help(opts.GenerateHelpText(env))

_downloads/bc54982daa1be2e5b495d74f01a098f1/resource_queue.gd

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+extends Node
+
+var thread
+var mutex
+var semaphore
+var exit_thread = false
+
+var time_max = 100 # Milliseconds.
+
+var queue = []
+var pending = {}
+
+func _lock(_caller):
+	mutex.lock()
+
+
+func _unlock(_caller):
+	mutex.unlock()
+
+
+func _post(_caller):
+	semaphore.post()
+
+
+func _wait(_caller):
+	semaphore.wait()
+
+
+func queue_resource(path, p_in_front = false):
+	_lock("queue_resource")
+	if path in pending:
+		_unlock("queue_resource")
+		return
+	elif ResourceLoader.has_cached(path):
+		var res = ResourceLoader.load(path)
+		pending[path] = res
+		_unlock("queue_resource")
+		return
+	else:
+		var res = ResourceLoader.load_interactive(path)
+		res.set_meta("path", path)
+		if p_in_front:
+			queue.insert(0, res)
+		else:
+			queue.push_back(res)
+		pending[path] = res
+		_post("queue_resource")
+		_unlock("queue_resource")
+		return
+
+
+func cancel_resource(path):
+	_lock("cancel_resource")
+	if path in pending:
+		if pending[path] is ResourceInteractiveLoader:
+			queue.erase(pending[path])
+		pending.erase(path)
+	_unlock("cancel_resource")
+
+
+func get_progress(path):
+	_lock("get_progress")
+	var ret = -1
+	if path in pending:
+		if pending[path] is ResourceInteractiveLoader:
+			ret = float(pending[path].get_stage()) / float(pending[path].get_stage_count())
+		else:
+			ret = 1.0
+	_unlock("get_progress")
+	return ret
+
+
+func is_ready(path):
+	var ret
+	_lock("is_ready")
+	if path in pending:
+		ret = !(pending[path] is ResourceInteractiveLoader)
+	else:
+		ret = false
+	_unlock("is_ready")
+	return ret
+
+
+func _wait_for_resource(res, path):
+	_unlock("wait_for_resource")
+	while true:
+		VisualServer.sync()
+		OS.delay_usec(16000) # Wait approximately 1 frame.
+		_lock("wait_for_resource")
+		if queue.size() == 0 || queue[0] != res:
+			return pending[path]
+		_unlock("wait_for_resource")
+
+
+func get_resource(path):
+	_lock("get_resource")
+	if path in pending:
+		if pending[path] is ResourceInteractiveLoader:
+			var res = pending[path]
+			if res != queue[0]:
+				var pos = queue.find(res)
+				queue.remove(pos)
+				queue.insert(0, res)
+
+			res = _wait_for_resource(res, path)
+			pending.erase(path)
+			_unlock("return")
+			return res
+		else:
+			var res = pending[path]
+			pending.erase(path)
+			_unlock("return")
+			return res
+	else:
+		_unlock("return")
+		return ResourceLoader.load(path)
+
+
+func thread_process():
+	_wait("thread_process")
+	_lock("process")
+
+	while queue.size() > 0:
+		var res = queue[0]
+		_unlock("process_poll")
+		var ret = res.poll()
+		_lock("process_check_queue")
+
+		if ret == ERR_FILE_EOF || ret != OK:
+			var path = res.get_meta("path")
+			if path in pending: # Else, it was already retrieved.
+				pending[res.get_meta("path")] = res.get_resource()
+			# Something might have been put at the front of the queue while
+			# we polled, so use erase instead of remove.
+			queue.erase(res)
+	_unlock("process")
+
+
+func thread_func(_u):
+	while true:
+		mutex.lock()
+		var should_exit = exit_thread # Protect with Mutex.
+		mutex.unlock()
+
+		if should_exit:
+			break
+		thread_process()
+
+
+func start():
+	mutex = Mutex.new()
+	semaphore = Semaphore.new()
+	thread = Thread.new()
+	thread.start(self, "thread_func", 0)
+
+# Triggered by calling "get_tree().quit()".
+func _exit_tree():
+	mutex.lock()
+	exit_thread = true # Protect with Mutex.
+	mutex.unlock()
+
+	# Unblock by posting.
+	semaphore.post()
+
+	# Wait until it exits.
+	thread.wait_to_finish()