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Code Issues 150 Wiki Activity

fix(editor): no crash laying track with the mouse outside the window

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- with no position of the mouse the ray gave NaN and the ground under it was looked up in a grid cell out of range; the lay and drag tools keep the last cursor then, the ground is not asked about points which are not numbers
This commit is contained in:
maj00r
2026-10-11 12:19:57 +02:00
parent 6284f4e0d3
commit 0f3004a64c
2 changed files with 8 additions and 3 deletions
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2
application/editormode.cpp
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@@ -567,6 +567,8 @@ std::vector<double> editor_mode::ground_heights(std::vector<glm::dvec3> const &P
for (std::size_t i = 0; i < Points.size(); ++i)
{
auto const &p = Points[i];
if (false == std::isfinite(p.x) || false == std::isfinite(p.y) || false == std::isfinite(p.z))
continue;
std::pair<int, int> const key{static_cast<int>(std::floor(p.x / ground_tile_size)), static_cast<int>(std::floor(p.z / ground_tile_size))};
auto &tile = ground_tiles[key];
bool const missing = (tile.grid == nullptr);

9
application/editormodetrack.cpp
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@@ -3866,9 +3866,11 @@ void editor_mode::update_build_tools()
m_join_radius = 0.0;
m_join_variant = 0;
};
bool const pointing{m_cursor_override.has_value() || ImGui::IsMousePosValid()};
if (m_extend.active)
{
m_extend.mouse = cursor_terrain(m_extend.point.y);
if (pointing)
m_extend.mouse = cursor_terrain(m_extend.point.y);
typed_extend();
m_extend.snap = m_typed.empty() && m_extend.track != nullptr ? snap_free_end(m_extend.mouse, cursor, m_extend.track, m_extend.track->iCategoryFlag & 15, {m_extend.track}) : editor_track::snap_target{};
if (m_extend.snap.track == nullptr)
@@ -3885,7 +3887,8 @@ void editor_mode::update_build_tools()
return;
// geometric ray, same as extend: Mouse_Position() is a delayed depth pick and lags the cursor
double const height{false == lay.points.empty() ? lay.points.back().y : lay.start.track != nullptr ? lay.start.position.y : ground.y};
lay.mouse = typed_lay(cursor_terrain(height));
if (pointing)
lay.mouse = typed_lay(cursor_terrain(height));
lay.mouse_snap = m_typed.empty() ? snap_free_end(lay.mouse, cursor, nullptr, kRailCategory, {}) : editor_track::find_free_end(nullptr, kRailCategory, lay.mouse, kLaySnapRadius, {});
if (lay.mouse_snap.track == nullptr)
lay.mouse = lay_bed(lay.mouse);
@@ -3988,7 +3991,7 @@ glm::dvec3 editor_mode::cursor_ground() const
glm::dvec3 editor_mode::cursor_terrain(double const Height)
{
auto point{cursor_level(Height)};
for (int i = 0; i < 5; ++i)
for (int i = 0; i < 5 && std::isfinite(point.x) && std::isfinite(point.z); ++i)
{
std::vector<char> found;
auto const heights{ground_heights({point}, true, &found)};