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Codechange: Use std algorithm when allocating rail/road type.

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Use `std::ranges::find()` instead of a `for`-loop to allocate rail and road types.
This commit is contained in:
Peter Nelson
2025-09-09 21:07:01 +01:00
committed by dP
parent 45a7f16f4d
commit be1d9b8349
2 changed files with 47 additions and 53 deletions
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src/rail_cmd.cpp
+22 -23
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@@ -149,34 +149,33 @@ void InitRailTypes()
*/
RailType AllocateRailType(RailTypeLabel label)
{
for (RailType rt = RAILTYPE_BEGIN; rt != RAILTYPE_END; rt++) {
RailTypeInfo *rti = &_railtypes[rt];
auto it = std::ranges::find(_railtypes, 0, &RailTypeInfo::label);
if (it == std::end(_railtypes)) return INVALID_RAILTYPE;
if (rti->label == 0) {
/* Set up new rail type */
*rti = _original_railtypes[RAILTYPE_RAIL];
rti->label = label;
rti->alternate_labels.clear();
RailTypeInfo &rti = *it;
RailType rt = rti.Index();
/* Make us compatible with ourself. */
rti->powered_railtypes = rt;
rti->compatible_railtypes = rt;
/* Set up new rail type based on default rail. */
rti = _original_railtypes[RAILTYPE_RAIL];
rti.label = label;
rti.alternate_labels.clear();
/* We also introduce ourself. */
rti->introduces_railtypes = rt;
/* Make us compatible with ourself. */
rti.powered_railtypes = rt;
rti.compatible_railtypes = rt;
/* Default sort order; order of allocation, but with some
* offsets so it's easier for NewGRF to pick a spot without
* changing the order of other (original) rail types.
* The << is so you can place other railtypes in between the
* other railtypes, the 7 is to be able to place something
* before the first (default) rail type. */
rti->sorting_order = rt << 4 | 7;
return rt;
}
}
/* We also introduce ourself. */
rti.introduces_railtypes = rt;
return INVALID_RAILTYPE;
/* Default sort order; order of allocation, but with some
* offsets so it's easier for NewGRF to pick a spot without
* changing the order of other (original) rail types.
* The << is so you can place other railtypes in between the
* other railtypes, the 7 is to be able to place something
* before the first (default) rail type. */
rti.sorting_order = rt << 4 | 7;
return rt;
}
static const uint8_t _track_sloped_sprites[14] = {