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feat(editor): paint roads to/from selected objects/NPCs

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The path tool gains a "Append selected <object|NPC> as path point"
button that captures the currently-selected entity's world position
into pathPoints_. Workflow: place an inn + a town hall, select inn
→ click append, select town hall → click append, click Apply Path.
The road is then drawn between the two object positions.

When no object/NPC is selected, the button area shows a hint
instead. The button auto-kicks pathCapture_ from None into Waiting*
on first use so the user doesn't have to remember the setup
sequence.

Works with the multi-point polyline path tool from the previous
commit — append three or more objects to route a road through them
in order.
This commit is contained in:
Kelsi 2026-05-07 11:59:52 -07:00
parent d96496147f
commit bdf2497f46
1 changed files with 34 additions and 0 deletions
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34
tools/editor/editor_ui.cpp
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@ -1032,6 +1032,40 @@ void EditorUI::renderBrushPanel(EditorApp& app) {
ImGui::SliderFloat("Width##path", &pathWidth_, 2.0f, 50.0f);
if (pathMode_ == 0) ImGui::SliderFloat("Depth##path", &pathDepth_, 1.0f, 30.0f);
// "Painting roads to/from models" — append the position of
// the currently-selected object or NPC as a path waypoint.
// Common workflow: place inn + town hall, select inn → click
// append, select town hall → click append, click Apply Path.
// The path then runs between them as a road.
const auto* selObj = app.getObjectPlacer().getSelected();
const auto* selNpc = app.getNpcSpawner().getSelected();
const char* srcLabel = selObj ? "object" :
selNpc ? "NPC" : nullptr;
glm::vec3 srcPos(0);
if (selObj) srcPos = selObj->position;
else if (selNpc) srcPos = selNpc->position;
if (srcLabel) {
std::string btn = std::string("Append selected ") + srcLabel +
" as path point";
if (ImGui::Button(btn.c_str(), ImVec2(-1, 0))) {
// setPathPoint only acts when capture is in one of
// its waiting states. If we're idle, kick to
// WaitingStart for the first append; subsequent
// appends progress through Waiting* automatically.
if (pathCapture_ == PathCapture::None) {
pathCapture_ = pathPoints_.empty()
? PathCapture::WaitingStart
: PathCapture::WaitingMore;
}
setPathPoint(srcPos);
app.showToast("Path point added at selected " +
std::string(srcLabel));
}
} else {
ImGui::TextColored(ImVec4(0.6f, 0.6f, 0.6f, 1),
"Select an object or NPC to append its position as a path point.");
}
if (pathCapture_ == PathCapture::None && pathPoints_.empty()) {
if (ImGui::Button("Click Start Point", ImVec2(-1, 0))) {
pathCapture_ = PathCapture::WaitingStart;