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feat(editor): brush mode tooltips, chunk texture inspector in Paint panel

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- Brush mode tooltips: hover over the mode combo to see what each does
  (Raise/Lower/Smooth/Flatten/Level/Erode descriptions)
- Chunk texture inspector: Paint panel shows which texture layers are
  on the chunk under the cursor (base + blended layers with filenames)
- Helps identify what textures you're painting over before blending
This commit is contained in:
Kelsi 2026-05-05 05:37:35 -07:00
parent dc9b085e38
commit e1776620d5
1 changed files with 37 additions and 0 deletions
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37
tools/editor/editor_ui.cpp
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@ -336,6 +336,17 @@ void EditorUI::renderBrushPanel(EditorApp& app) {
const char* modes[] = {"Raise", "Lower", "Smooth", "Flatten", "Level", "Erode"};
int idx = static_cast<int>(s.mode);
if (ImGui::Combo("Mode", &idx, modes, 6)) s.mode = static_cast<BrushMode>(idx);
if (ImGui::IsItemHovered()) {
const char* tips[] = {
"Raise: lift terrain up",
"Lower: push terrain down",
"Smooth: average neighbor heights",
"Flatten: set to target height",
"Level: same as flatten",
"Erode: simulate water erosion downhill"
};
ImGui::SetTooltip("%s", tips[idx]);
}
ImGui::SliderFloat("Radius", &s.radius, 5.0f, 200.0f, "%.0f");
ImGui::SliderFloat("Strength", &s.strength, 0.5f, 50.0f, "%.1f");
ImGui::SliderFloat("Falloff", &s.falloff, 0.0f, 1.0f, "%.2f");
@ -457,6 +468,32 @@ void EditorUI::renderTexturePaintPanel(EditorApp& app) {
ImGui::TextColored(ImVec4(0.5f, 0.9f, 0.5f, 1.0f), "Active: %s",
selectedTexture_.c_str());
// Show textures on chunk under cursor
auto& brush = app.getTerrainEditor().brush();
if (brush.isActive()) {
if (auto* terrain = app.getTerrainEditor().getTerrain()) {
glm::vec3 bp = brush.getPosition();
float tileNW_X = (32.0f - static_cast<float>(terrain->coord.y)) * 533.33333f;
float tileNW_Y = (32.0f - static_cast<float>(terrain->coord.x)) * 533.33333f;
int cy = static_cast<int>((tileNW_X - bp.x) / (533.33333f / 16.0f));
int cx = static_cast<int>((tileNW_Y - bp.y) / (533.33333f / 16.0f));
cx = std::clamp(cx, 0, 15);
cy = std::clamp(cy, 0, 15);
auto& chunk = terrain->chunks[cy * 16 + cx];
if (!chunk.layers.empty()) {
ImGui::Separator();
ImGui::Text("Chunk [%d,%d] layers:", cx, cy);
for (size_t li = 0; li < chunk.layers.size(); li++) {
uint32_t tid = chunk.layers[li].textureId;
std::string tname = (tid < terrain->textures.size()) ? terrain->textures[tid] : "?";
auto sl = tname.rfind('\\');
if (sl != std::string::npos) tname = tname.substr(sl + 1);
ImGui::BulletText("%s%s", li == 0 ? "[base] " : "", tname.c_str());
}
}
}
}
// Recent textures
auto& recent = app.getTexturePainter().getRecentTextures();
if (!recent.empty()) {