Added an experimental convert scripts option for godot3 export

editor/editor_export_godot3.cpp

@@ -29,6 +29,7 @@
 /*************************************************************************/
 #include "editor_export_godot3.h"
 
+#include "drivers/nrex/regex.h"
 #include "editor_node.h"
 #include "io/resource_format_binary.h"
 #include "io/resource_format_xml.h"
@@ -1980,7 +1981,190 @@ void EditorExportGodot3::_save_config(const String &p_path) {
 	f->close();
 }
 
-Error EditorExportGodot3::export_godot3(const String &p_path) {
+Error EditorExportGodot3::_convert_script(const String &p_path, const String &p_target_path) {
+
+	FileAccessRef src = FileAccess::open(p_path, FileAccess::READ);
+	ERR_FAIL_COND_V(!src.operator->(), FAILED);
+	FileAccessRef dst = FileAccess::open(p_target_path, FileAccess::WRITE);
+	ERR_FAIL_COND_V(!dst.operator->(), FAILED);
+
+	String http_var = "";
+
+	while (!src->eof_reached()) {
+		String line = src->get_line();
+
+		// Convert _fixed_process( => _physics_process(
+		RegEx regexp("(.*)_fixed_process\\((.*)");
+		int res = regexp.find(line);
+		if (res >= 0 && regexp.get_capture_count() == 3) {
+			line = regexp.get_capture(1) + "_physics_process(" + regexp.get_capture(2);
+		}
+		regexp.clear();
+
+		// Convert RawArray() => PoolByteArray()
+		regexp.compile("(.*)RawArray\\(\\)(.*)");
+		res = regexp.find(line);
+		if (res >= 0 && regexp.get_capture_count() == 3) {
+			line = regexp.get_capture(1) + "PoolByteArray()" + regexp.get_capture(2);
+		}
+		regexp.clear();
+
+		// Convert Vector2Array() => PoolVector2Array()
+		regexp.compile("(.*)Vector2Array\\(\\)(.*)");
+		res = regexp.find(line);
+		if (res >= 0 && regexp.get_capture_count() == 3) {
+			line = regexp.get_capture(1) + "PoolVector2Array()" + regexp.get_capture(2);
+		}
+		regexp.clear();
+
+		// Convert ReferenceFrame => Control
+		regexp.compile("(.*)ReferenceFrame(.*)");
+		res = regexp.find(line);
+		if (res >= 0 && regexp.get_capture_count() == 3) {
+			line = regexp.get_capture(1) + "Control" + regexp.get_capture(2);
+		}
+		regexp.clear();
+
+		// Try to detect a HTTPClient object
+		regexp.compile("[ \t]*([a-zA-Z0-9_]*)[ ]*=[ ]*HTTPClient\\.new\\(\\)");
+		res = regexp.find(line);
+		if (res >= 0 && regexp.get_capture_count() == 2) {
+			http_var = regexp.get_capture(1).strip_edges();
+		}
+		regexp.clear();
+
+		if (http_var != "") {
+			// Convert .connect( => .connect_to_host(
+			regexp.compile("(.*)" + http_var + "\\.connect\\((.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 3) {
+				line = regexp.get_capture(1) + http_var + ".connect_to_host(" + regexp.get_capture(2);
+			}
+			regexp.clear();
+		}
+
+		int count;
+		int tries = 0;
+		do {
+			count = 0;
+
+			// Convert _pos( => _position(
+			regexp.compile("(.*)_pos\\((.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 3) {
+				line = regexp.get_capture(1) + "_position(" + regexp.get_capture(2);
+				count++;
+			}
+			regexp.clear();
+
+			// Convert KEY_RETURN => KEY_ENTER
+			regexp.compile("(.*)KEY_RETURN(.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 3) {
+				line = regexp.get_capture(1) + "KEY_ENTER" + regexp.get_capture(2);
+				count++;
+			}
+			regexp.clear();
+
+			// Convert .get_opacity() => .get_modulate().a
+			regexp.compile("(.*)\\.get_opacity\\(\\)(.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 3) {
+				line = regexp.get_capture(1) + ".get_modulate().a" + regexp.get_capture(2);
+				count++;
+			}
+			regexp.clear();
+
+			// Convert .set_opacity(var) => .modulate.a = var
+			regexp.compile("([ \t]*)([a-zA-Z0-9_]*)[ ]*\\.set_opacity\\((.*)\\)(.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 5) {
+				line = regexp.get_capture(1) + regexp.get_capture(2) + ".modulate.a = " + regexp.get_capture(3) + regexp.get_capture(4);
+				count++;
+			}
+			regexp.clear();
+
+			// Convert var.type == InputEvent.KEY => var is InputEventKey
+			regexp.compile("(.*)([a-zA-Z0-9_]*)\\.type == InputEvent.KEY(.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 4) {
+				line = regexp.get_capture(1) + regexp.get_capture(2) + " is InputEventKey" + regexp.get_capture(3);
+				count++;
+			}
+			regexp.clear();
+
+			// Convert var.type == InputEvent.MOUSE_MOTION => var is InputEventMouseMotion
+			regexp.compile("(.*)([a-zA-Z0-9_]*)\\.type == InputEvent.MOUSE_MOTION(.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 4) {
+				line = regexp.get_capture(1) + regexp.get_capture(2) + " is InputEventMouseMotion" + regexp.get_capture(3);
+				count++;
+			}
+			regexp.clear();
+
+			// Convert var.type == InputEvent.MOUSE_BUTTON => var is InputEventMouseButton
+			regexp.compile("(.*)([a-zA-Z0-9_]*)\\.type == InputEvent.MOUSE_BUTTON(.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 4) {
+				line = regexp.get_capture(1) + regexp.get_capture(2) + " is InputEventMouseButton" + regexp.get_capture(3);
+				count++;
+			}
+			regexp.clear();
+
+			// Convert var.type == InputEvent.JOYSTICK_MOTION => var is InputEventJoypadMotion
+			regexp.compile("(.*)([a-zA-Z0-9_]*)\\.type == InputEvent.JOYSTICK_MOTION(.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 4) {
+				line = regexp.get_capture(1) + regexp.get_capture(2) + " is InputEventJoypadMotion" + regexp.get_capture(3);
+				count++;
+			}
+			regexp.clear();
+
+			// Convert var.type == InputEvent.JOYSTICK_BUTTON => var is InputEventJoypadButton
+			regexp.compile("(.*)([a-zA-Z0-9_]*)\\.type == InputEvent.JOYSTICK_BUTTON(.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 4) {
+				line = regexp.get_capture(1) + regexp.get_capture(2) + " is InputEventJoypadButton" + regexp.get_capture(3);
+				count++;
+			}
+			regexp.clear();
+
+			// Convert is_move_and_slide_on_floor() => is_on_floor()
+			regexp.compile("(.*)is_move_and_slide_on_floor\\(\\)(.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 3) {
+				line = regexp.get_capture(1) + "is_on_floor()" + regexp.get_capture(2);
+				count++;
+			}
+			regexp.clear();
+
+			// Convert is_move_and_slide_on_ceiling() => is_on_ceiling()
+			regexp.compile("(.*)is_move_and_slide_on_ceiling\\(\\)(.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 3) {
+				line = regexp.get_capture(1) + "is_on_ceiling()" + regexp.get_capture(2);
+				count++;
+			}
+			regexp.clear();
+
+			// Convert is_move_and_slide_on_wall() => is_on_wall()
+			regexp.compile("(.*)is_move_and_slide_on_wall\\(\\)(.*)");
+			res = regexp.find(line);
+			if (res >= 0 && regexp.get_capture_count() == 3) {
+				line = regexp.get_capture(1) + "is_on_wall()" + regexp.get_capture(2);
+				count++;
+			}
+			regexp.clear();
+
+		} while (count >= 1 && tries++ < 10);
+
+		dst->store_line(line);
+	}
+
+	return OK;
+}
+
+Error EditorExportGodot3::export_godot3(const String &p_path, bool convert_scripts) {
 
 	List<String> files;
 	_find_files(EditorFileSystem::get_singleton()->get_filesystem(), &files);
@@ -2076,34 +2260,36 @@ Error EditorExportGodot3::export_godot3(const String &p_path) {
 
 		ExportData resource_data;
 
+		Error err;
+		bool cont = false;
 		if (xml_extensions.has(extension)) {
-			Error err = ResourceLoader::get_export_data(path, resource_data);
-			if (err != OK) {
-				memdelete(directory);
-				ERR_FAIL_V(err);
-			}
+
+			err = ResourceLoader::get_export_data(path, resource_data);
 		} else if (text_extensions.has(extension)) {
-			Error err = ResourceLoader::get_export_data(path, resource_data);
-			if (err != OK) {
-				memdelete(directory);
-				ERR_FAIL_V(err);
-			}
-		} else if (binary_extensions.has(extension)) {
 
-			Error err = ResourceLoader::get_export_data(path, resource_data);
-			if (err != OK) {
-				memdelete(directory);
-				ERR_FAIL_V(err);
-			}
+			err = ResourceLoader::get_export_data(path, resource_data);
+		} else if (binary_extensions.has(extension)) {
 
+			err = ResourceLoader::get_export_data(path, resource_data);
 		} else {
-			//single file, copy it
-			Error err = directory->copy(path, target_path);
-			if (err != OK) {
-				memdelete(directory);
-				ERR_FAIL_V(err);
+
+			if (convert_scripts && extension == "gd") {
+				err = _convert_script(path, target_path);
+			} else {
+				//single file, copy it
+				err = directory->copy(path, target_path);
 			}
-			continue; //no longer needed to do anything, just copied the file!
+
+			cont = true; //no longer needed to do anything, just copied the file!
+		}
+
+		if (err != OK) {
+			memdelete(directory);
+			ERR_FAIL_V(err);
+		}
+
+		if (cont) {
+			continue;
 		}
 
 		if (resource_data.nodes.size() == 0 && resource_data.resources[resource_data.resources.size() - 1].type == "PackedScene") {

editor/editor_export_godot3.h

@@ -87,10 +87,12 @@ class EditorExportGodot3 {
 	void _unpack_packed_scene(ExportData &resource);
 	void _pack_packed_scene(ExportData &resource);
 
+	Error _convert_script(const String &p_path, const String &p_target_path);
+
 	void _find_files(EditorFileSystemDirectory *p_dir, List<String> *r_files);
 
 public:
-	Error export_godot3(const String &p_path);
+	Error export_godot3(const String &p_path, bool convert_scripts);
 
 	EditorExportGodot3();
 };

editor/editor_node.cpp

@@ -5077,7 +5077,7 @@ void EditorNode::_bind_methods() {
 
 void EditorNode::_export_godot3_path(const String &p_path) {
 
-	Error err = export_godot3.export_godot3(p_path);
+	Error err = export_godot3.export_godot3(p_path, export_godot3_dialog_convert_scripts->is_pressed());
 	if (err != OK) {
 		show_warning("Error exporting to Godot 3.0");
 	}
@@ -6345,6 +6345,10 @@ EditorNode::EditorNode() {
 	export_godot3_dialog = memnew(FileDialog);
 	export_godot3_dialog->set_access(FileDialog::ACCESS_FILESYSTEM);
 	export_godot3_dialog->set_mode(FileDialog::MODE_OPEN_DIR);
+	export_godot3_dialog_convert_scripts = memnew(CheckButton);
+	export_godot3_dialog_convert_scripts->set_text(TTR("Convert scripts (experimental)"));
+	export_godot3_dialog_convert_scripts->set_pressed(false);
+	export_godot3_dialog->get_vbox()->add_child(export_godot3_dialog_convert_scripts);
 	gui_base->add_child(export_godot3_dialog);
 	export_godot3_dialog->connect("dir_selected", this, "_export_godot3_path");
 

editor/editor_node.h

@@ -279,6 +279,7 @@ private:
 
 	EditorExportGodot3 export_godot3;
 	FileDialog *export_godot3_dialog;
+	CheckButton *export_godot3_dialog_convert_scripts;
 
 	CreateDialog *create_dialog;