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feat(editor): flatten around object, scatter auto-align, manifest batch

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- Flatten Ground: flattens terrain to object height with smooth falloff
  around placed buildings/structures (undoable). Button in object panel
- Scatter auto-align: checkbox enables terrain snapping + slope alignment
  for scattered objects (trees snap to ground and lean with hillsides)
- Batch convert now falls back to asset manifest when filesystem dir is
  empty — converts M2/WMO from game data without filesystem extraction
- Public terrain editor wrappers: beginGeneratorUndo, endGeneratorUndo,
  markDirty, stitchChunkEdges, getChunkVertexWorldPos
This commit is contained in:
Kelsi 2026-05-05 14:28:14 -07:00
parent 115fe8436f
commit d3e8f999c7
4 changed files with 76 additions and 8 deletions
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54
tools/editor/editor_app.cpp
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@ -1298,6 +1298,35 @@ void EditorApp::snapSelectedToGround() {
}
}
void EditorApp::flattenAroundSelected(float radius) {
auto* sel = objectPlacer_.getSelected();
if (!sel || !terrain_.isLoaded()) return;
terrainEditor_.beginGeneratorUndo();
float targetHeight = sel->position.z;
for (int ci = 0; ci < 256; ci++) {
auto& chunk = terrain_.chunks[ci];
if (!chunk.hasHeightMap()) continue;
bool modified = false;
for (int v = 0; v < 145; v++) {
glm::vec3 vpos = terrainEditor_.getChunkVertexWorldPos(ci, v);
float dist = glm::length(glm::vec2(vpos.x - sel->position.x, vpos.y - sel->position.y));
if (dist >= radius) continue;
float t = dist / radius;
float blend = t * t;
float relTarget = targetHeight - chunk.position[2];
chunk.heightMap.heights[v] = chunk.heightMap.heights[v] * blend + relTarget * (1.0f - blend);
modified = true;
}
if (modified) {
terrainEditor_.stitchChunkEdges(ci);
terrainEditor_.markDirty(ci);
}
}
terrainEditor_.endGeneratorUndo();
showToast("Flattened terrain around object (r=" + std::to_string(static_cast<int>(radius)) + ")");
}
void EditorApp::alignSelectedToTerrain() {
auto& indices = objectPlacer_.getSelectedIndices();
auto& objects = objectPlacer_.getObjects();
@ -1323,14 +1352,27 @@ void EditorApp::alignSelectedToTerrain() {
int EditorApp::batchConvertAssets(const std::string& dataDir) {
namespace fs = std::filesystem;
if (!fs::exists(dataDir)) return 0;
int converted = 0;
for (auto& entry : fs::recursive_directory_iterator(dataDir)) {
if (!entry.is_regular_file()) continue;
std::string ext = entry.path().extension().string();
// Collect paths from filesystem or manifest
std::vector<std::string> assetPaths;
if (fs::exists(dataDir)) {
for (auto& entry : fs::recursive_directory_iterator(dataDir)) {
if (entry.is_regular_file())
assetPaths.push_back(fs::relative(entry.path(), dataDir).string());
}
}
if (assetPaths.empty() && assetManager_) {
for (const auto& [path, _] : assetManager_->getManifest().getEntries())
assetPaths.push_back(path);
LOG_INFO("Batch convert: using manifest (", assetPaths.size(), " entries)");
}
for (const auto& relPath : assetPaths) {
std::string ext;
auto dot = relPath.rfind('.');
if (dot != std::string::npos) ext = relPath.substr(dot);
for (char& c : ext) c = static_cast<char>(std::tolower(static_cast<unsigned char>(c)));
std::string relPath = fs::relative(entry.path(), dataDir).string();
if (ext == ".m2") {
auto wom = pipeline::WoweeModelLoader::fromM2(relPath, assetManager_.get());