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Saveload: Use table format for animated tiles

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This commit is contained in:
Jonathan G Rennison 2024-07-14 21:52:04 +01:00
parent 11eebdc5dd
commit e0352b8161
2 changed files with 58 additions and 13 deletions
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69
src/sl/animated_tile_sl.cpp
View File

@ -16,21 +16,59 @@
#include "../safeguards.h"
using AnimatedTilePair = std::pair<const TileIndex, AnimatedTileInfo>;
struct AnimatedTileStructHandler : public SaveLoadStructHandler {
NamedSaveLoadTable GetDescription() const override
{
static const NamedSaveLoad _anim_tiles_sub_desc[] = {
NSLT("tile", SLTAG(SLTAG_CUSTOM_START, SLE_VAR(AnimatedTilePair, first, SLE_UINT32))),
NSLT("speed", SLTAG(SLTAG_CUSTOM_START + 1, SLE_VAR(AnimatedTilePair, second.speed, SLE_UINT8))),
};
return _anim_tiles_sub_desc;
}
void Save([[maybe_unused]] void *object) const override
{
uint count = 0;
for (const auto &it : _animated_tiles) {
if (!it.second.pending_deletion) count++;
}
SlSetStructListLength(count);
for (const auto &it : _animated_tiles) {
if (it.second.pending_deletion) continue;
SlWriteUint32(it.first);
SlWriteByte(it.second.speed);
}
}
void Load([[maybe_unused]] void *object) const override
{
auto slt = this->GetLoadDescription();
if (slt.size() != 2 || slt[0].label_tag != SLTAG_CUSTOM_START || slt[1].label_tag != SLTAG_CUSTOM_START + 1) {
SlErrorCorrupt("Table format ANIT chunk fields not as expected");
}
size_t count = SlGetStructListLength(MAX_MAP_TILES);
for (size_t i = 0; i < count; i++) {
TileIndex tile = SlReadUint32();
AnimatedTileInfo info = {};
info.speed = SlReadByte();
_animated_tiles[tile] = info;
}
}
};
static const NamedSaveLoad _anim_tiles_desc[] = {
NSLT_STRUCTLIST<AnimatedTileStructHandler>("animated_tiles"),
};
/**
* Save the ANIT chunk.
*/
static void Save_ANIT()
{
uint count = 0;
for (const auto &it : _animated_tiles) {
if (!it.second.pending_deletion) count++;
}
SlSetLength(count * 5);
for (const auto &it : _animated_tiles) {
if (it.second.pending_deletion) continue;
SlWriteUint32(it.first);
SlWriteByte(it.second.speed);
}
SlSaveTableObjectChunk(_anim_tiles_desc);
}
/**
@ -38,6 +76,14 @@ static void Save_ANIT()
*/
static void Load_ANIT()
{
_animated_tiles.clear();
if (SlIsTableChunk()) {
if (SlXvIsFeatureMissing(XSLFI_ANIMATED_TILE_EXTRA, 2)) SlErrorCorrupt("Table format ANIT chunk without XSLFI_ANIMATED_TILE_EXTRA v2");
SlLoadTableObjectChunk(_anim_tiles_desc);
return;
}
/* Before version 80 we did NOT have a variable length animated tile table */
if (IsSavegameVersionBefore(SLV_80)) {
/* In pre version 6, we has 16bit per tile, now we have 32bit per tile, convert it ;) */
@ -51,7 +97,6 @@ static void Load_ANIT()
return;
}
_animated_tiles.clear();
if (SlXvIsFeaturePresent(XSLFI_ANIMATED_TILE_EXTRA)) {
uint count = (uint)SlGetFieldLength() / 5;
for (uint i = 0; i < count; i++) {
@ -73,7 +118,7 @@ static void Load_ANIT()
* the animated tile table.
*/
static const ChunkHandler animated_tile_chunk_handlers[] = {
{ 'ANIT', Save_ANIT, Load_ANIT, nullptr, nullptr, CH_RIFF },
{ 'ANIT', Save_ANIT, Load_ANIT, nullptr, nullptr, CH_TABLE },
};
extern const ChunkHandlerTable _animated_tile_chunk_handlers(animated_tile_chunk_handlers);

2
src/sl/extended_ver_sl.cpp
View File

@ -154,7 +154,7 @@ const SlxiSubChunkInfo _sl_xv_sub_chunk_infos[] = {
{ XSLFI_ONE_WAY_DT_ROAD_STOP, XSCF_NULL, 1, 1, "one_way_dt_road_stop", nullptr, nullptr, nullptr },
{ XSLFI_ONE_WAY_ROAD_STATE, XSCF_NULL, 1, 1, "one_way_road_state", nullptr, nullptr, nullptr },
{ XSLFI_VENC_CHUNK, XSCF_IGNORABLE_ALL, 0, 1, "venc_chunk", nullptr, nullptr, "VENC" },
{ XSLFI_ANIMATED_TILE_EXTRA, XSCF_NULL, 1, 1, "animated_tile_extra", nullptr, nullptr, nullptr },
{ XSLFI_ANIMATED_TILE_EXTRA, XSCF_NULL, 2, 2, "animated_tile_extra", nullptr, nullptr, nullptr },
{ XSLFI_NEWGRF_INFO_EXTRA, XSCF_NULL, 1, 1, "newgrf_info_extra", nullptr, nullptr, nullptr },
{ XSLFI_INDUSTRY_CARGO_ADJ, XSCF_IGNORABLE_UNKNOWN, 2, 2, "industry_cargo_adj", nullptr, nullptr, nullptr },
{ XSLFI_REALISTIC_TRAIN_BRAKING, XSCF_NULL, 11, 11, "realistic_train_braking", nullptr, nullptr, "VLKA" },