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Feature: New filter to show only used types in build-pickers.

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This filters the build-picker type lists to only show types that have
already been placed in the current game, making it simpler to get to
build matching features.
This commit is contained in:
Peter Nelson
2024-05-07 12:13:49 +01:00
committed by Peter Nelson
parent b76517816e
commit fde3b35a24
7 changed files with 130 additions and 4 deletions
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47
src/rail_gui.cpp
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@@ -9,6 +9,8 @@
#include "stdafx.h"
#include "gui.h"
#include "station_base.h"
#include "waypoint_base.h"
#include "window_gui.h"
#include "station_gui.h"
#include "terraform_gui.h"
@@ -944,6 +946,19 @@ static void HandleStationPlacement(TileIndex start, TileIndex end)
ShowSelectStationIfNeeded(ta, proc);
}
/**
* Test if a station/waypoint uses the default graphics.
* @param bst Station to test.
* @return true if at least one of its rail station tiles uses the default graphics.
*/
static bool StationUsesDefaultType(const BaseStation *bst)
{
for (TileIndex t : bst->train_station) {
if (bst->TileBelongsToRailStation(t) && IsRailStation(t) && GetCustomStationSpecIndex(t) == 0) return true;
}
return false;
}
class StationPickerCallbacks : public PickerCallbacksNewGRFClass<StationClass> {
public:
StringID GetClassTooltip() const override { return STR_PICKER_STATION_CLASS_TOOLTIP; }
@@ -996,6 +1011,22 @@ public:
}
}
void FillUsedItems(std::set<PickerItem> &items) override
{
bool default_added = false;
for (const Station *st : Station::Iterate()) {
if (st->owner != _local_company) continue;
if (!default_added && StationUsesDefaultType(st)) {
items.insert({0, 0, STAT_CLASS_DFLT, 0});
default_added = true;
}
for (const auto &sm : st->speclist) {
if (sm.spec == nullptr) continue;
items.insert({sm.grfid, sm.localidx, sm.spec->class_index, sm.spec->index});
}
}
}
static StationPickerCallbacks instance;
};
/* static */ StationPickerCallbacks StationPickerCallbacks::instance;
@@ -1788,6 +1819,22 @@ public:
DrawWaypointSprite(x, y, this->GetClassIndex(cls_id), id, _cur_railtype);
}
void FillUsedItems(std::set<PickerItem> &items) override
{
bool default_added = false;
for (const Waypoint *wp : Waypoint::Iterate()) {
if (wp->owner != _local_company) continue;
if (!default_added && StationUsesDefaultType(wp)) {
items.insert({0, 0, STAT_CLASS_WAYP, 0});
default_added = true;
}
for (const auto &sm : wp->speclist) {
if (sm.spec == nullptr) continue;
items.insert({0, 0, sm.spec->class_index, sm.spec->index});
}
}
}
static WaypointPickerCallbacks instance;
};
/* static */ WaypointPickerCallbacks WaypointPickerCallbacks::instance;