static void AnimationControl(TileIndex tile, uint16 random_bits)
{
const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
if (HasBit(hs->callback_mask, CBM_HOUSE_ANIMATION_START_STOP)) {
uint32 param = (hs->extra_flags & SYNCHRONISED_CALLBACK_1B) ? (GB(Random(), 0, 16) | random_bits << 16) : Random();
uint16 callback_res = GetHouseCallback(CBID_HOUSE_ANIMATION_START_STOP, param, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
if (callback_res != CALLBACK_FAILED) ChangeHouseAnimationFrame(hs->grffile, tile, callback_res);
}
}
/**
* Rebuild all the cached variables of towns.
*/
void RebuildTownCaches()
{
Town *town;
InitializeBuildingCounts();
/* Reset town population and num_houses */
FOR_ALL_TOWNS(town) {
town->cache.population = 0;
town->cache.num_houses = 0;
}
for (TileIndex t = 0; t < MapSize(); t++) {
if (!IsTileType(t, MP_HOUSE)) continue;
HouseID house_id = GetHouseType(t);
town = Town::GetByTile(t);
IncreaseBuildingCount(town, house_id);
if (IsHouseCompleted(t)) town->cache.population += HouseSpec::Get(house_id)->population;
/* Increase the number of houses for every house, but only once. */
if (GetHouseNorthPart(house_id) == 0) town->cache.num_houses++;
}
/* Update the population and num_house dependent values */
FOR_ALL_TOWNS(town) {
UpdateTownRadius(town);
UpdateTownCargoes(town);
}
UpdateTownCargoBitmap();
}
void AnimateNewHouseTile(TileIndex tile)
{
const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
if (hs == NULL) return;
HouseAnimationBase::AnimateTile(hs, Town::GetByTile(tile), tile, HasBit(hs->extra_flags, CALLBACK_1A_RANDOM_BITS));
}
bool CanDeleteHouse(TileIndex tile)
{
const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
/* Humans are always allowed to remove buildings, as is water and
* anyone using the scenario editor. */
if (Company::IsValidHumanID(_current_company) || _current_company == OWNER_WATER || _current_company == OWNER_NONE) {
return true;
}
if (HasBit(hs->callback_mask, CBM_HOUSE_DENY_DESTRUCTION)) {
uint16 callback_res = GetHouseCallback(CBID_HOUSE_DENY_DESTRUCTION, 0, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
return (callback_res == CALLBACK_FAILED || !ConvertBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_DENY_DESTRUCTION, callback_res));
} else {
return !(hs->extra_flags & BUILDING_IS_PROTECTED);
}
}
void AnimateNewHouseConstruction(TileIndex tile)
{
const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
if (HasBit(hs->callback_mask, CBM_HOUSE_CONSTRUCTION_STATE_CHANGE)) {
HouseAnimationBase::ChangeAnimationFrame(CBID_HOUSE_CONSTRUCTION_STATE_CHANGE, hs, Town::GetByTile(tile), tile, 0, 0);
}
}
static void AnimationControl(TileIndex tile, uint16 random_bits)
{
const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
if (HasBit(hs->callback_mask, CBM_HOUSE_ANIMATION_START_STOP)) {
uint32 param = (hs->extra_flags & SYNCHRONISED_CALLBACK_1B) ? (GB(Random(), 0, 16) | random_bits << 16) : Random();
HouseAnimationBase::ChangeAnimationFrame(CBID_HOUSE_ANIMATION_START_STOP, hs, Town::GetByTile(tile), tile, param, 0);
}
}
bool NewHouseTileLoop(TileIndex tile)
{
const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
if (GetHouseProcessingTime(tile) > 0) {
DecHouseProcessingTime(tile);
return true;
}
TriggerHouse(tile, HOUSE_TRIGGER_TILE_LOOP);
if (hs->building_flags & BUILDING_HAS_1_TILE) TriggerHouse(tile, HOUSE_TRIGGER_TILE_LOOP_TOP);
if (HasBit(hs->callback_mask, CBM_HOUSE_ANIMATION_START_STOP)) {
/* If this house is marked as having a synchronised callback, all the
* tiles will have the callback called at once, rather than when the
* tile loop reaches them. This should only be enabled for the northern
* tile, or strange things will happen (here, and in TTDPatch). */
if (hs->extra_flags & SYNCHRONISED_CALLBACK_1B) {
uint16 random = GB(Random(), 0, 16);
if (hs->building_flags & BUILDING_HAS_1_TILE) AnimationControl(tile, random);
if (hs->building_flags & BUILDING_2_TILES_Y) AnimationControl(TILE_ADDXY(tile, 0, 1), random);
if (hs->building_flags & BUILDING_2_TILES_X) AnimationControl(TILE_ADDXY(tile, 1, 0), random);
if (hs->building_flags & BUILDING_HAS_4_TILES) AnimationControl(TILE_ADDXY(tile, 1, 1), random);
} else {
AnimationControl(tile, 0);
}
}
/* Check callback 21, which determines if a house should be destroyed. */
if (HasBit(hs->callback_mask, CBM_HOUSE_DESTRUCTION)) {
uint16 callback_res = GetHouseCallback(CBID_HOUSE_DESTRUCTION, 0, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
if (callback_res != CALLBACK_FAILED && Convert8bitBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_DESTRUCTION, callback_res)) {
ClearTownHouse(Town::GetByTile(tile), tile);
return false;
}
}
SetHouseProcessingTime(tile, hs->processing_time);
MarkTileDirtyByTile(tile);
return true;
}
/**
* Callback function to search a house by its grfID
* @param tile TileIndex to be examined
* @param user_data SearchNearbyHouseData
* @return true or false, if found or not
*/
static bool SearchNearbyHouseGRFID(TileIndex tile, void *user_data)
{
if (IsTileType(tile, MP_HOUSE)) {
HouseID house = GetHouseType(tile); // tile been examined
const HouseSpec *hs = HouseSpec::Get(house);
if (hs->grf_prop.grffile != NULL) { // must be one from a grf file
SearchNearbyHouseData *nbhd = (SearchNearbyHouseData *)user_data;
TileIndex north_tile = tile + GetHouseNorthPart(house); // modifies 'house'!
if (north_tile == nbhd->north_tile) return false; // Always ignore origin house
return hs->grf_prop.grffile->grfid == nbhd->hs->grf_prop.grffile->grfid; // from the same grf
}
}
return false;
}
static void DoTriggerHouse(TileIndex tile, HouseTrigger trigger, byte base_random, bool first)
{
ResolverObject object;
/* We can't trigger a non-existent building... */
assert(IsTileType(tile, MP_HOUSE));
HouseID hid = GetHouseType(tile);
HouseSpec *hs = HouseSpec::Get(hid);
if (hs->spritegroup == NULL) return;
NewHouseResolver(&object, hid, tile, Town::GetByTile(tile));
object.callback = CBID_RANDOM_TRIGGER;
object.trigger = trigger;
const SpriteGroup *group = SpriteGroup::Resolve(hs->spritegroup, &object);
if (group == NULL) return;
byte new_random_bits = Random();
byte random_bits = GetHouseRandomBits(tile);
random_bits &= ~object.reseed;
random_bits |= (first ? new_random_bits : base_random) & object.reseed;
SetHouseRandomBits(tile, random_bits);
switch (trigger) {
case HOUSE_TRIGGER_TILE_LOOP:
/* Random value already set. */
break;
case HOUSE_TRIGGER_TILE_LOOP_TOP:
if (!first) {
/* The top tile is marked dirty by the usual TileLoop */
MarkTileDirtyByTile(tile);
break;
}
/* Random value of first tile already set. */
if (hs->building_flags & BUILDING_2_TILES_Y) DoTriggerHouse(TILE_ADDXY(tile, 0, 1), trigger, random_bits, false);
if (hs->building_flags & BUILDING_2_TILES_X) DoTriggerHouse(TILE_ADDXY(tile, 1, 0), trigger, random_bits, false);
if (hs->building_flags & BUILDING_HAS_4_TILES) DoTriggerHouse(TILE_ADDXY(tile, 1, 1), trigger, random_bits, false);
break;
}
}
/**
* Run watched cargo accepted callback for a house.
* @param tile House tile.
* @param trigger_cargoes Triggering cargo types.
* @pre IsTileType(t, MP_HOUSE)
*/
void WatchedCargoCallback(TileIndex tile, uint32 trigger_cargoes)
{
assert(IsTileType(tile, MP_HOUSE));
HouseID id = GetHouseType(tile);
const HouseSpec *hs = HouseSpec::Get(id);
trigger_cargoes &= hs->watched_cargoes;
/* None of the trigger cargoes is watched? */
if (trigger_cargoes == 0) return;
/* Same random value for all tiles of a multi-tile house. */
uint16 r = Random();
/* Do the callback, start at northern tile. */
TileIndex north = tile + GetHouseNorthPart(id);
hs = HouseSpec::Get(id);
DoWatchedCargoCallback(north, tile, trigger_cargoes, r);
if (hs->building_flags & BUILDING_2_TILES_Y) DoWatchedCargoCallback(TILE_ADDXY(north, 0, 1), tile, trigger_cargoes, r);
if (hs->building_flags & BUILDING_2_TILES_X) DoWatchedCargoCallback(TILE_ADDXY(north, 1, 0), tile, trigger_cargoes, r);
if (hs->building_flags & BUILDING_HAS_4_TILES) DoWatchedCargoCallback(TILE_ADDXY(north, 1, 1), tile, trigger_cargoes, r);
}
/**
* Run the watched cargo accepted callback for a single house tile.
* @param tile The house tile.
* @param origin The triggering tile.
* @param trigger_cargoes Cargo types that triggered the callback.
* @param random Random bits.
*/
void DoWatchedCargoCallback(TileIndex tile, TileIndex origin, uint32 trigger_cargoes, uint16 random)
{
TileIndexDiffC diff = TileIndexToTileIndexDiffC(origin, tile);
uint32 cb_info = random << 16 | (uint8)diff.y << 8 | (uint8)diff.x;
HouseAnimationBase::ChangeAnimationFrame(CBID_HOUSE_WATCHED_CARGO_ACCEPTED, HouseSpec::Get(GetHouseType(tile)), Town::GetByTile(tile), tile, 0, cb_info, trigger_cargoes);
}
/**
* @note Used by the resolver to get values for feature 07 deterministic spritegroups.
*/
/* virtual */ uint32 HouseScopeResolver::GetVariable(byte variable, uint32 parameter, bool *available) const
{
switch (variable) {
/* Construction stage. */
case 0x40: return (IsTileType(this->tile, MP_HOUSE) ? GetHouseBuildingStage(this->tile) : 0) | TileHash2Bit(TileX(this->tile), TileY(this->tile)) << 2;
/* Building age. */
case 0x41: return IsTileType(this->tile, MP_HOUSE) ? GetHouseAge(this->tile) : 0;
/* Town zone */
case 0x42: return GetTownRadiusGroup(this->town, this->tile);
/* Terrain type */
case 0x43: return GetTerrainType(this->tile);
/* Number of this type of building on the map. */
case 0x44: return GetNumHouses(this->house_id, this->town);
/* Whether the town is being created or just expanded. */
case 0x45: return _generating_world ? 1 : 0;
/* Current animation frame. */
case 0x46: return IsTileType(this->tile, MP_HOUSE) ? GetAnimationFrame(this->tile) : 0;
/* Position of the house */
case 0x47: return TileY(this->tile) << 16 | TileX(this->tile);
/* Building counts for old houses with id = parameter. */
case 0x60: return parameter < NEW_HOUSE_OFFSET ? GetNumHouses(parameter, this->town) : 0;
/* Building counts for new houses with id = parameter. */
case 0x61: {
const HouseSpec *hs = HouseSpec::Get(this->house_id);
if (hs->grf_prop.grffile == NULL) return 0;
HouseID new_house = _house_mngr.GetID(parameter, hs->grf_prop.grffile->grfid);
return new_house == INVALID_HOUSE_ID ? 0 : GetNumHouses(new_house, this->town);
}
/* Land info for nearby tiles. */
case 0x62: return GetNearbyTileInformation(parameter, this->tile, this->ro->grffile->grf_version >= 8);
/* Current animation frame of nearby house tiles */
case 0x63: {
TileIndex testtile = GetNearbyTile(parameter, this->tile);
return IsTileType(testtile, MP_HOUSE) ? GetAnimationFrame(testtile) : 0;
}
/* Cargo acceptance history of nearby stations */
case 0x64: {
CargoID cid = GetCargoTranslation(parameter, this->ro->grffile);
if (cid == CT_INVALID) return 0;
/* Extract tile offset. */
int8 x_offs = GB(GetRegister(0x100), 0, 8);
int8 y_offs = GB(GetRegister(0x100), 8, 8);
TileIndex testtile = TILE_MASK(this->tile + TileDiffXY(x_offs, y_offs));
StationFinder stations(TileArea(testtile, 1, 1));
const StationList *sl = stations.GetStations();
/* Collect acceptance stats. */
uint32 res = 0;
for (Station * const * st_iter = sl->Begin(); st_iter != sl->End(); st_iter++) {
const Station *st = *st_iter;
if (HasBit(st->goods[cid].acceptance_pickup, GoodsEntry::GES_EVER_ACCEPTED)) SetBit(res, 0);
if (HasBit(st->goods[cid].acceptance_pickup, GoodsEntry::GES_LAST_MONTH)) SetBit(res, 1);
if (HasBit(st->goods[cid].acceptance_pickup, GoodsEntry::GES_CURRENT_MONTH)) SetBit(res, 2);
if (HasBit(st->goods[cid].acceptance_pickup, GoodsEntry::GES_ACCEPTED_BIGTICK)) SetBit(res, 3);
}
/* Cargo triggered CB 148? */
if (HasBit(this->watched_cargo_triggers, cid)) SetBit(res, 4);
return res;
}
/* Distance test for some house types */
case 0x65: return GetDistanceFromNearbyHouse(parameter, this->tile, this->house_id);
/* Class and ID of nearby house tile */
case 0x66: {
TileIndex testtile = GetNearbyTile(parameter, this->tile);
if (!IsTileType(testtile, MP_HOUSE)) return 0xFFFFFFFF;
HouseSpec *hs = HouseSpec::Get(GetHouseType(testtile));
/* Information about the grf local classid if the house has a class */
uint houseclass = 0;
if (hs->class_id != HOUSE_NO_CLASS) {
houseclass = (hs->grf_prop.grffile == this->ro->grffile ? 1 : 2) << 8;
houseclass |= _class_mapping[hs->class_id].class_id;
}
/* old house type or grf-local houseid */
uint local_houseid = 0;
if (this->house_id < NEW_HOUSE_OFFSET) {
local_houseid = this->house_id;
} else {
local_houseid = (hs->grf_prop.grffile == this->ro->grffile ? 1 : 2) << 8;
local_houseid |= hs->grf_prop.local_id;
}
return houseclass << 16 | local_houseid;
}
/* GRFID of nearby house tile */
case 0x67: {
TileIndex testtile = GetNearbyTile(parameter, this->tile);
if (!IsTileType(testtile, MP_HOUSE)) return 0xFFFFFFFF;
HouseID house_id = GetHouseType(testtile);
if (house_id < NEW_HOUSE_OFFSET) return 0;
/* Checking the grffile information via HouseSpec doesn't work
* in case the newgrf was removed. */
return _house_mngr.GetGRFID(house_id);
}
}
DEBUG(grf, 1, "Unhandled house variable 0x%X", variable);
*available = false;
return UINT_MAX;
}
void AnimateNewHouseTile(TileIndex tile)
{
const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
byte animation_speed = hs->animation_speed;
bool frame_set_by_callback = false;
if (HasBit(hs->callback_mask, CBM_HOUSE_ANIMATION_SPEED)) {
uint16 callback_res = GetHouseCallback(CBID_HOUSE_ANIMATION_SPEED, 0, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
if (callback_res != CALLBACK_FAILED) animation_speed = Clamp(callback_res & 0xFF, 2, 16);
}
/* An animation speed of 2 means the animation frame changes 4 ticks, and
* increasing this value by one doubles the wait. 2 is the minimum value
* allowed for animation_speed, which corresponds to 120ms, and 16 is the
* maximum, corresponding to around 33 minutes. */
if (_tick_counter % (1 << animation_speed) != 0) return;
byte frame = GetHouseAnimationFrame(tile);
byte num_frames = GB(hs->animation_frames, 0, 7);
if (HasBit(hs->callback_mask, CBM_HOUSE_ANIMATION_NEXT_FRAME)) {
uint32 param = (hs->extra_flags & CALLBACK_1A_RANDOM_BITS) ? Random() : 0;
uint16 callback_res = GetHouseCallback(CBID_HOUSE_ANIMATION_NEXT_FRAME, param, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
if (callback_res != CALLBACK_FAILED) {
frame_set_by_callback = true;
switch (callback_res & 0xFF) {
case 0xFF:
DeleteAnimatedTile(tile);
break;
case 0xFE:
/* Carry on as normal. */
frame_set_by_callback = false;
break;
default:
frame = callback_res & 0xFF;
break;
}
/* If the lower 7 bits of the upper byte of the callback
* result are not empty, it is a sound effect. */
if (GB(callback_res, 8, 7) != 0) PlayTileSound(hs->grffile, GB(callback_res, 8, 7), tile);
}
}
if (!frame_set_by_callback) {
if (frame < num_frames) {
frame++;
} else if (frame == num_frames && HasBit(hs->animation_frames, 7)) {
/* This animation loops, so start again from the beginning */
frame = 0;
} else {
/* This animation doesn't loop, so stay here */
DeleteAnimatedTile(tile);
}
}
SetHouseAnimationFrame(tile, frame);
MarkTileDirtyByTile(tile);
}
/**
* HouseGetVariable():
*
* Used by the resolver to get values for feature 07 deterministic spritegroups.
*/
static uint32 HouseGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
{
const Town *town = object->u.house.town;
TileIndex tile = object->u.house.tile;
HouseID house_id = object->u.house.house_id;
if (object->scope == VSG_SCOPE_PARENT) {
return TownGetVariable(variable, parameter, available, town);
}
switch (variable) {
/* Construction stage. */
case 0x40: return (IsTileType(tile, MP_HOUSE) ? GetHouseBuildingStage(tile) : 0) | TileHash2Bit(TileX(tile), TileY(tile)) << 2;
/* Building age. */
case 0x41: return IsTileType(tile, MP_HOUSE) ? GetHouseAge(tile) : 0;
/* Town zone */
case 0x42: return GetTownRadiusGroup(town, tile);
/* Terrain type */
case 0x43: return GetTerrainType(tile);
/* Number of this type of building on the map. */
case 0x44: return GetNumHouses(house_id, town);
/* Whether the town is being created or just expanded. */
case 0x45: return _generating_world ? 1 : 0;
/* Current animation frame. */
case 0x46: return IsTileType(tile, MP_HOUSE) ? GetHouseAnimationFrame(tile) : 0;
/* Position of the house */
case 0x47: return TileY(tile) << 16 | TileX(tile);
/* Building counts for old houses with id = parameter. */
case 0x60: return GetNumHouses(parameter, town);
/* Building counts for new houses with id = parameter. */
case 0x61: {
const HouseSpec *hs = HouseSpec::Get(house_id);
if (hs->grffile == NULL) return 0;
HouseID new_house = _house_mngr.GetID(parameter, hs->grffile->grfid);
return new_house == INVALID_HOUSE_ID ? 0 : GetNumHouses(new_house, town);
}
/* Land info for nearby tiles. */
case 0x62: return GetNearbyTileInformation(parameter, tile);
/* Current animation frame of nearby house tiles */
case 0x63: {
TileIndex testtile = GetNearbyTile(parameter, tile);
return IsTileType(testtile, MP_HOUSE) ? GetHouseAnimationFrame(testtile) : 0;
}
/* Cargo acceptance history of nearby stations */
/*case 0x64: not implemented yet */
/* Distance test for some house types */
case 0x65: return GetDistanceFromNearbyHouse(parameter, tile, object->u.house.house_id);
/* Class and ID of nearby house tile */
case 0x66: {
TileIndex testtile = GetNearbyTile(parameter, tile);
if (!IsTileType(testtile, MP_HOUSE)) return 0xFFFFFFFF;
HouseSpec *hs = HouseSpec::Get(GetHouseType(testtile));
/* Information about the grf local classid if the house has a class */
uint houseclass = 0;
if (hs->class_id != HOUSE_NO_CLASS) {
houseclass = (hs->grffile == object->grffile ? 1 : 2) << 8;
houseclass |= _class_mapping[hs->class_id].class_id;
}
/* old house type or grf-local houseid */
uint local_houseid = 0;
if (house_id < NEW_HOUSE_OFFSET) {
local_houseid = house_id;
} else {
local_houseid = (hs->grffile == object->grffile ? 1 : 2) << 8;
local_houseid |= hs->local_id;
}
return houseclass << 16 | local_houseid;
}
/* GRFID of nearby house tile */
case 0x67: {
TileIndex testtile = GetNearbyTile(parameter, tile);
if (!IsTileType(testtile, MP_HOUSE)) return 0xFFFFFFFF;
HouseID house_id = GetHouseType(testtile);
if (house_id < NEW_HOUSE_OFFSET) return 0;
/* Checking the grffile information via HouseSpec doesn't work
* in case the newgrf was removed. */
return _house_mngr.mapping_ID[house_id].grfid;
}
}
DEBUG(grf, 1, "Unhandled house property 0x%X", variable);
*available = false;
return UINT_MAX;
}