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Fix dual pane purchase window with mixed wagon/loco variant trees

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Use top-level variant engine for the loco/wagon categorisation

See: #558
This commit is contained in:
Jonathan G Rennison
2023-06-28 19:24:24 +01:00
parent 5415b596b0
commit d55ba23a87
1 changed files with 6 additions and 1 deletions
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7
src/build_vehicle_gui.cpp
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@@ -2607,7 +2607,12 @@ struct BuildVehicleWindowTrainAdvanced final : BuildVehicleWindowBase {
if (!FilterSingleEngine(state, eid)) continue;
if ((rvi->railveh_type == RAILVEH_WAGON) != wagon) continue;
const Engine *top_engine = engine;
for (int depth = 0; depth < 16; depth++) {
if (top_engine->info.variant_id == INVALID_ENGINE) break;
top_engine = Engine::Get(top_engine->info.variant_id);
}
if ((top_engine->u.rail.railveh_type == RAILVEH_WAGON) != wagon) continue;
/* Filter by name or NewGRF extra text */
if (!FilterByText(state, engine)) continue;