polygon2d realtime editing

editing nodes in the polygon2d editor now updates the polygon in realtime; the previous outline is shown, but this can be disabled via a new editor setting

1 files changed, 22 insertions, 0 deletions

diff --git a/editor/plugins/polygon_2d_editor_plugin.cpp b/editor/plugins/polygon_2d_editor_plugin.cpp
index 24ccdcd445..5440f16d7e 100644
--- a/editor/plugins/polygon_2d_editor_plugin.cpp
+++ b/editor/plugins/polygon_2d_editor_plugin.cpp
@@ -402,6 +402,11 @@ bool Polygon2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 			cpoint = canvas_item_editor->snap_point(cpoint);
 			edited_point_pos = node->get_global_transform().affine_inverse().xform(cpoint);
 
+			Vector<Vector2> poly = Variant(node->get_polygon());
+			ERR_FAIL_INDEX_V(edited_point, poly.size(), false);
+			poly[edited_point] = edited_point_pos - node->get_offset();
+			node->set_polygon(Variant(poly));
+
 			canvas_item_editor->get_viewport_control()->update();
 		}
 	}
@@ -425,6 +430,23 @@ void Polygon2DEditor::_canvas_draw() {
 	Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
 	Ref<Texture> handle = get_icon("EditorHandle", "EditorIcons");
 
+	if (edited_point >= 0 && EDITOR_DEF("editors/poly_editor/show_previous_outline", true)) {
+
+		const Color col = node->get_color().contrasted();
+		const int n = pre_move_edit.size();
+		for (int i = 0; i < n; i++) {
+
+			Vector2 p, p2;
+			p = pre_move_edit[i] + node->get_offset();
+			p2 = pre_move_edit[(i + 1) % n] + node->get_offset();
+
+			Vector2 point = xform.xform(p);
+			Vector2 next_point = xform.xform(p2);
+
+			vpc->draw_line(point, next_point, col, 2);
+		}
+	}
+
 	for (int i = 0; i < poly.size(); i++) {
 
 		Vector2 p, p2;