int32_t dim_x, dim_y, dim_z;

size_t size;

df::tile_occupancy * occ_buf;

std::unordered_map<df::map_block *, std::set<int32_t>> block_items_buf;

Expected() {

Maps::getTileSize(dim_x, dim_y, dim_z);

size = dim_x * dim_y * dim_z;

occ_buf = (df::tile_occupancy *)calloc(size, sizeof(*occ_buf));

}

~Expected() {

free(occ_buf);

}

size_t get_size() const {

return size;

}

df::tile_occupancy * occ(int32_t x, int32_t y, int32_t z) {

size_t off = (dim_x * dim_y * z) + (dim_x * y) + x;

if (off < size)

return &occ_buf[off];

return nullptr;

}

df::tile_occupancy * occ(const df::coord & pos) {

return occ(pos.x, pos.y, pos.z);

}

std::set<int32_t> * block_items(df::map_block * block) {

if (!block)

return nullptr;

return &block_items_buf[block];

}

std::set<int32_t> * block_items(int32_t x, int32_t y, int32_t z) {

return block_items(Maps::getTileBlock(x, y, z));

}

std::set<int32_t> * block_items(const df::coord & pos) {

return block_items(pos.x, pos.y, pos.z);

}

for (int y = bld->y1; y <= bld->y2; ++y) {

for (int x = bld->x1; x <= bld->x2; ++x) {

if (!Buildings::containsTile(bld, df::coord2d(x, y)))

continue;

if (auto expected_occ = expected.occ(x, y, bld->z)) {

auto bld_occ = df::tile_building_occ::Impassable;

if (auto block_occ = Maps::getTileOccupancy(x, y, bld->z))

bld_occ = block_occ->bits.building;

expected_occ->bits.building = bld_occ;

}

}

}

if (unit->flags1.bits.caged || unit->flags1.bits.inactive || unit->flags1.bits.rider)

return;

if (auto craw = df::creature_raw::find(unit->race); craw && craw->flags.is_set(df::creature_raw_flags::EQUIPMENT_WAGON)) {

for (int y = unit->pos.y - 1; y <= unit->pos.y + 1; ++y) {

for (int x = unit->pos.x - 1; x <= unit->pos.x + 1; ++x) {

if (auto expected_occ = expected.occ(x, y, unit->pos.z)) {

expected_occ->bits.unit = expected_occ->bits.unit || !unit->flags1.bits.on_ground;

expected_occ->bits.unit_grounded = expected_occ->bits.unit_grounded || unit->flags1.bits.on_ground;

}

}

}

} else if (auto expected_occ = expected.occ(unit->pos)) {

expected_occ->bits.unit = expected_occ->bits.unit || !unit->flags1.bits.on_ground;

expected_occ->bits.unit_grounded = expected_occ->bits.unit_grounded || unit->flags1.bits.on_ground;

}

if (!item->flags.bits.on_ground)

return;

auto pos = Items::getPosition(item);

if (auto block_items = expected.block_items(pos))

block_items->emplace(item->id);

if (auto expected_occ = expected.occ(pos))

expected_occ->bits.item = true;

bool needs_sorting = false;

int32_t prev_id = -1;

for (auto item_id : block->items) {

// do we need to handle duplicates as well?

if (item_id < prev_id) {

needs_sorting = true;

break;

}

prev_id = item_id;

}

if (needs_sorting) {

INFO(log,out).print("%s item list for map block at (%d, %d, %d)\n",

dry_run ? "would fix" : "fixing", block->map_pos.x, block->map_pos.y, block->map_pos.z);

if (!dry_run)

std::sort(block->items.begin(), block->items.end());

}

bool dry_run, int x, int y, int z)

{

// clear building occupancy if there is no building there

if (expected_occ.bits.building == df::tile_building_occ::None && block_occ.bits.building != df::tile_building_occ::None) {

INFO(log,out).print("%s building occupancy at (%d, %d, %d)\n",

dry_run ? "would fix" : "fixing", x, y, z);

if (!dry_run)

block_occ.bits.building = df::tile_building_occ::None;

}

// clear unit occupancy if there are no units there

if (!expected_occ.bits.unit && block_occ.bits.unit) {

INFO(log,out).print("%s standing unit occupancy at (%d, %d, %d)\n",

dry_run ? "would fix" : "fixing", x, y, z);

if (!dry_run)

block_occ.bits.unit = false;

}

if (!expected_occ.bits.unit_grounded && block_occ.bits.unit_grounded) {

INFO(log,out).print("%s grounded unit occupancy at (%d, %d, %d)\n",

dry_run ? "would fix" : "fixing", x, y, z);

if (!dry_run)

block_occ.bits.unit_grounded = false;

}

// clear item occupancy if there are no items there

if (!expected_occ.bits.item && block_occ.bits.item) {

INFO(log,out).print("%s item occupancy at (%d, %d, %d)\n",

dry_run ? "would fix" : "fixing", x, y, z);

if (!dry_run)

block_occ.bits.item = false;

}

auto occ = Maps::getTileOccupancy(pos);

auto block = Maps::getTileBlock(pos);

if (!occ || !block) {

WARN(log,out).print("invalid tile: (%d, %d, %d)\n", pos.x, pos.y, pos.z);

return;

}

Expected expected;

// building occupancy

size_t num_buildings = 0;

if (auto bld = Buildings::findAtTile(pos)) {

++num_buildings;

scan_building(bld, expected);

}

// unit occupancy (make sure we pick up wagons that might be overlapping the tile)

vector<df::unit *> units;

Units::getUnitsInBox(units, pos.x-1, pos.y-1, pos.z, pos.x+1, pos.y+1, pos.z);

size_t num_units = units.size();

for (auto unit : units)

scan_unit(unit, expected);

// check/fix order of map block item vector

normalize_item_vector(out, block, dry_run);

// scan for items at that position in the map block

// this won't catch issues with items that are members of an incorrect map block. use fix_map for that.

size_t num_items = 0;

for (auto item_id : block->items) {

if (auto item = df::item::find(item_id)) {

++num_items;

scan_item(item, expected);

}

}

// check/fix occupancy

if (auto expected_occ = expected.occ(pos))

reconcile_map_tile(out, *expected_occ, block->occupancy[pos.x&15][pos.y&15], dry_run, pos.x, pos.y, pos.z);

INFO(log,out).print("verified %zd building(s), %zd unit(s), %zd item(s), 1 map block(s), and 1 map tile(s)\n",

num_buildings, num_units, num_items);

vector<int32_t> & block_items = block->items;

if (!expected_items) {

if (block_items.size()) {

INFO(log,out).print("%s stale item references in map block at (%d, %d, %d)\n",

dry_run ? "would fix" : "fixing", block->map_pos.x, block->map_pos.y, block->map_pos.z);

if (!dry_run)

block_items.resize(0);

}

return;

}

if (!std::equal(expected_items->begin(), expected_items->end(), block_items.begin(), block_items.end())) {

INFO(log,out).print("%s stale item references in map block at (%d, %d, %d)\n",

dry_run ? "would fix" : "fixing", block->map_pos.x, block->map_pos.y, block->map_pos.z);

if (!dry_run) {

block_items.resize(expected_items->size());

std::copy(expected_items->begin(), expected_items->end(), block_items.begin());

}

}

static const uint32_t occ_mask = df::tile_occupancy::mask_building | df::tile_occupancy::mask_unit |

df::tile_occupancy::mask_unit_grounded | df::tile_occupancy::mask_item;

Expected expected;

// set expected building occupancy

for (auto bld : world->buildings.all)

scan_building(bld, expected);

// set expected unit occupancy

for (auto unit : world->units.active)

scan_unit(unit, expected);

// set expected item occupancy

for (auto item : world->items.other.IN_PLAY)

scan_item(item, expected);

// check against expected values and fix

for (auto block : world->map.map_blocks) {

// check/fix order of map block item vector

normalize_item_vector(out, block, dry_run);

reconcile_block_items(out, expected.block_items(block), block, dry_run);

// reconcile occupancy of each tile against expected values

int z = block->map_pos.z;

for (int yoff = 0; yoff < 16; ++yoff) {

int y = block->map_pos.y + yoff;

for (int xoff = 0; xoff < 16; ++xoff) {

int x = block->map_pos.x + xoff;

auto expected_occ = expected.occ(x, y, z);

if (!expected_occ) {

TRACE(log,out).print("pos out of bounds (%d, %d, %d)\n", x, y, z);

continue;

}

df::tile_occupancy &block_occ = block->occupancy[xoff][yoff];

if ((expected_occ->whole & occ_mask) != (block_occ.whole & occ_mask)) {

DEBUG(log,out).print("reconciling occupancy at (%d, %d, %d) (0x%x != 0x%x)\n",

x, y, z, expected_occ->whole & occ_mask, block_occ.whole & occ_mask);

reconcile_map_tile(out, *expected_occ, block_occ, dry_run, x, y, z);

}

}

}

}

INFO(log,out).print("verified %zd buildings, %zd units, %zd items, %zd map blocks, and %zd map tiles\n",

world->buildings.all.size(), world->units.active.size(), world->items.other.IN_PLAY.size(),

world->map.map_blocks.size(), expected.get_size());