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Path2D prefer control points for outward curve

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This commit is contained in:
dugramen
2025-03-11 00:29:02 -04:00
parent 30bb49ec1f
commit 4fbf38d091
2 changed files with 32 additions and 2 deletions
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30
editor/plugins/path_2d_editor_plugin.cpp
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@@ -110,6 +110,7 @@ bool Path2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
moving_screen_from = gpoint;
return true;
} else if (mode == MODE_EDIT || mode == MODE_EDIT_CURVE) {
control_points_in_range = 0;
// In/out controls can be moved in multiple modes.
if (dist_to_p_out < grab_threshold && i < (curve->get_point_count() - 1)) {
action = ACTION_MOVING_OUT;
@@ -117,13 +118,17 @@ bool Path2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
moving_from = curve->get_point_out(i);
moving_screen_from = gpoint;
orig_in_length = curve->get_point_in(action_point).length();
return true;
} else if (dist_to_p_in < grab_threshold && i > 0) {
control_points_in_range += 1;
}
if (dist_to_p_in < grab_threshold && i > 0) {
action = ACTION_MOVING_IN;
action_point = i;
moving_from = curve->get_point_in(i);
moving_screen_from = gpoint;
orig_out_length = curve->get_point_out(action_point).length();
control_points_in_range += 1;
}
if (control_points_in_range > 0) {
return true;
}
}
@@ -298,6 +303,27 @@ bool Path2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid()) {
// When both control points were in range of click,
// pick the point that drags the curve outwards.
if (control_points_in_range == 2) {
control_points_in_range = 0;
Ref<Curve2D> curve = node->get_curve();
Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_screen_transform();
Point2 relative = xform.affine_inverse().basis_xform(mm->get_relative());
real_t angle_in = relative.angle_to(curve->get_point_position(action_point - 1) - curve->get_point_position(action_point));
real_t angle_out = relative.angle_to(curve->get_point_position(action_point + 1) - curve->get_point_position(action_point));
if (Math::abs(angle_in) < Math::abs(angle_out)) {
action = ACTION_MOVING_IN;
moving_from = curve->get_point_in(action_point);
orig_out_length = curve->get_point_out(action_point).length();
} else {
action = ACTION_MOVING_OUT;
moving_from = curve->get_point_out(action_point);
orig_in_length = curve->get_point_in(action_point).length();
}
}
if (action == ACTION_NONE && mode == MODE_EDIT) {
// Handle Edge Follow
bool old_edge = on_edge;