Now can move camera in line editor mode, closes #2

src/modules/stream/road_lines_editor.cpp

@@ -12,6 +12,7 @@
 #include <core/io/config_file.h>
 #include <core/os/file_access.h>
 #include <core/os/dir_access.h>
+#include <core/os/input.h>
 #include <core/os/time.h>
 #include <core/io/json.h>
 #include <modules/regex/regex.h>
@@ -464,6 +465,7 @@ RoadLinesEditor::RoadLinesEditor(WorldEditor *editor)
 	, editor(editor)
 	, cursor_enabled(false)
 	, filter_text("")
+	, camera_moved(false)
 {
 }
 
@@ -638,6 +640,22 @@ void RoadLinesEditor::update(float delta)
 		cursor_enabled = false;
 		get_as_node<Spatial>(cursor_name)->hide();
 	}
+	if (camera_moved) {
+		Camera *cam = editor->get_viewport()->get_camera();
+		assert(cam);
+		camera_moved = false;
+		Transform cam_xform = cam->get_global_transform();
+		float h = cam_xform.origin.y;
+		cam_xform.origin.z += Math::abs(h) * camera_motion.z * delta;
+		cam_xform.origin.x += Math::abs(h) * camera_motion.x * delta;
+		cam_xform.origin.y += camera_motion.y * delta;
+		camera_motion = Vector3();
+		cam->set_global_transform(cam_xform);
+		Array move_args;
+		move_args.push_back(cam_xform);
+		editor->emit_signal("editor_event", "editor_camera_moved",
+				    move_args);
+	}
 }
 
 void RoadLinesEditor::exit()
@@ -901,6 +919,31 @@ void RoadLinesEditor::remove_road_meshes()
 	Array args;
 	editor->editor_command("remove_road_meshes", args);
 }
+void RoadLinesEditor::handle_input()
+{
+	if (editor->get_camera_mode() != 3)
+		return;
+	bool moved = false;
+	float xx = Input::get_singleton()->get_axis("left", "right");
+	float zz = Input::get_singleton()->get_axis("backward", "forward");
+	float hh = Input::get_singleton()->get_axis("action2", "action");
+
+	if (Math::abs(zz) > 0.1f) {
+		camera_motion.z -= zz;
+		moved = true;
+	}
+	if (Math::abs(xx) > 0.1f) {
+		camera_motion.x += xx;
+		moved = true;
+	}
+	if (Math::abs(hh) > 0.1f && Math::abs(xx) < 0.1f &&
+	    Math::abs(zz) < 0.1f) {
+		camera_motion.y += 10.0f * hh;
+		moved = true;
+	}
+	if (moved)
+		camera_moved = true;
+}
 void RoadLinesEditor::place_zebras()
 {
 	editor->remove_buildings_by_prefix("zebra");

src/modules/stream/road_lines_editor.h

@@ -9,6 +9,8 @@ class RoadLinesEditor {
 	bool cursor_enabled;
 	String filter_text;
 	Ref<RegEx> re;
+	bool camera_moved;
+	Vector3 camera_motion;
 
 public:
 	RoadLinesEditor(WorldEditor *editor);
@@ -46,6 +48,7 @@ public:
 	void place_generated_objects();
 	void rebuild_roads();
 	void remove_road_meshes();
+	void handle_input();
 
 protected:
 	void activate();

src/modules/stream/world_editor.cpp

@@ -434,6 +434,8 @@ void WorldEditor::_unhandled_input(const Ref<InputEvent> &event)
 			}
 		}
 	}
+	if (current_mode == MODE_ROAD_LINES)
+		road_lines_editor->handle_input();
 }
 
 void WorldEditor::world_exited()