ETileArea(const BaseStation *st, TileIndex tile, TriggerArea ta)
{
switch (ta) {
default: NOT_REACHED();
case TA_TILE:
this->tile = tile;
this->w = 1;
this->h = 1;
break;
case TA_PLATFORM: {
TileIndex start, end;
Axis axis = GetRailStationAxis(tile);
TileIndexDiff delta = TileOffsByDiagDir(AxisToDiagDir(axis));
for (end = tile; IsRailStationTile(end + delta) && IsCompatibleTrainStationTile(end + delta, tile); end += delta) { /* Nothing */ }
for (start = tile; IsRailStationTile(start - delta) && IsCompatibleTrainStationTile(start - delta, tile); start -= delta) { /* Nothing */ }
this->tile = start;
this->w = TileX(end) - TileX(start) + 1;
this->h = TileY(end) - TileY(start) + 1;
break;
}
case TA_WHOLE:
st->GetTileArea(this, Station::IsExpected(st) ? STATION_RAIL : STATION_WAYPOINT);
break;
}
}
/**
* Configure a ViewPort for rendering (a part of) the map into a screenshot.
* @param t Screenshot type
* @param [out] vp Result viewport
*/
void SetupScreenshotViewport(ScreenshotType t, ViewPort *vp)
{
/* Determine world coordinates of screenshot */
if (t == SC_WORLD) {
vp->zoom = ZOOM_LVL_WORLD_SCREENSHOT;
TileIndex north_tile = _settings_game.construction.freeform_edges ? TileXY(1, 1) : TileXY(0, 0);
TileIndex south_tile = MapSize() - 1;
/* We need to account for a hill or high building at tile 0,0. */
int extra_height_top = TilePixelHeight(north_tile) + 150;
/* If there is a hill at the bottom don't create a large black area. */
int reclaim_height_bottom = TilePixelHeight(south_tile);
vp->virtual_left = RemapCoords(TileX(south_tile) * TILE_SIZE, TileY(north_tile) * TILE_SIZE, 0).x;
vp->virtual_top = RemapCoords(TileX(north_tile) * TILE_SIZE, TileY(north_tile) * TILE_SIZE, extra_height_top).y;
vp->virtual_width = RemapCoords(TileX(north_tile) * TILE_SIZE, TileY(south_tile) * TILE_SIZE, 0).x - vp->virtual_left + 1;
vp->virtual_height = RemapCoords(TileX(south_tile) * TILE_SIZE, TileY(south_tile) * TILE_SIZE, reclaim_height_bottom).y - vp->virtual_top + 1;
} else {
vp->zoom = (t == SC_ZOOMEDIN) ? _settings_client.gui.zoom_min : ZOOM_LVL_VIEWPORT;
Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
vp->virtual_left = w->viewport->virtual_left;
vp->virtual_top = w->viewport->virtual_top;
vp->virtual_width = w->viewport->virtual_width;
vp->virtual_height = w->viewport->virtual_height;
}
/* Compute pixel coordinates */
vp->left = 0;
vp->top = 0;
vp->width = UnScaleByZoom(vp->virtual_width, vp->zoom);
vp->height = UnScaleByZoom(vp->virtual_height, vp->zoom);
vp->overlay = NULL;
}
/**
* Gets the other end of the aqueduct, if possible.
* @param tile_from The begin tile for the aqueduct.
* @param [out] tile_to The tile till where to show a selection for the aqueduct.
* @return The other end of the aqueduct, or otherwise a tile in line with the aqueduct to cause the right error message.
*/
static TileIndex GetOtherAqueductEnd(TileIndex tile_from, TileIndex *tile_to = NULL)
{
int z;
DiagDirection dir = GetInclinedSlopeDirection(GetTileSlope(tile_from, &z));
/* If the direction isn't right, just return the next tile so the command
* complains about the wrong slope instead of the ends not matching up.
* Make sure the coordinate is always a valid tile within the map, so we
* don't go "off" the map. That would cause the wrong error message. */
if (!IsValidDiagDirection(dir)) return TILE_ADDXY(tile_from, TileX(tile_from) > 2 ? -1 : 1, 0);
/* Direction the aqueduct is built to. */
TileIndexDiff offset = TileOffsByDiagDir(ReverseDiagDir(dir));
/* The maximum length of the aqueduct. */
int max_length = min(_settings_game.construction.max_bridge_length, DistanceFromEdgeDir(tile_from, ReverseDiagDir(dir)) - 1);
TileIndex endtile = tile_from;
for (int length = 0; IsValidTile(endtile) && TileX(endtile) != 0 && TileY(endtile) != 0; length++) {
endtile = TILE_ADD(endtile, offset);
if (length > max_length) break;
if (GetTileMaxZ(endtile) > z) {
if (tile_to != NULL) *tile_to = endtile;
break;
}
}
return endtile;
}
/**
* Returns the driveable Trackdirs on a tile.
*
* One-way-roads are taken into account. Signals are not tested.
*
* @param dst_tile The tile of interest.
* @param src_trackdir The direction the vehicle is currently moving.
* @param type The transporttype of the vehicle.
* @param subtype For TRANSPORT_ROAD the compatible RoadTypes of the vehicle.
* @return The Trackdirs the vehicle can continue moving on.
*/
static TrackdirBits GetDriveableTrackdirBits(TileIndex dst_tile, Trackdir src_trackdir, TransportType type, uint subtype)
{
TrackdirBits trackdirbits = TrackStatusToTrackdirBits(GetTileTrackStatus(dst_tile, type, subtype));
if (trackdirbits == 0 && type == TRANSPORT_ROAD && HasBit(subtype, ROADTYPE_TRAM)) {
/* GetTileTrackStatus() returns 0 for single tram bits.
* As we cannot change it there (easily) without breaking something, change it here */
switch (GetSingleTramBit(dst_tile)) {
case DIAGDIR_NE:
case DIAGDIR_SW:
trackdirbits = TRACKDIR_BIT_X_NE | TRACKDIR_BIT_X_SW;
break;
case DIAGDIR_NW:
case DIAGDIR_SE:
trackdirbits = TRACKDIR_BIT_Y_NW | TRACKDIR_BIT_Y_SE;
break;
default: break;
}
}
DEBUG(npf, 4, "Next node: (%d, %d) [%d], possible trackdirs: 0x%X", TileX(dst_tile), TileY(dst_tile), dst_tile, trackdirbits);
/* Select only trackdirs we can reach from our current trackdir */
trackdirbits &= TrackdirReachesTrackdirs(src_trackdir);
/* Filter out trackdirs that would make 90 deg turns for trains */
if (_settings_game.pf.forbid_90_deg && (type == TRANSPORT_RAIL || type == TRANSPORT_WATER)) trackdirbits &= ~TrackdirCrossesTrackdirs(src_trackdir);
DEBUG(npf, 6, "After filtering: (%d, %d), possible trackdirs: 0x%X", TileX(dst_tile), TileY(dst_tile), trackdirbits);
return trackdirbits;
}
/** Allocates space for a new tile in the matrix.
* @param tile Tile to add.
*/
void AllocateStorage(TileIndex tile)
{
uint old_left = TileX(this->area.tile) / N;
uint old_top = TileY(this->area.tile) / N;
uint old_w = this->area.w / N;
uint old_h = this->area.h / N;
/* Add the square the tile is in to the tile area. We do this
* by adding top-left and bottom-right of the square. */
uint grid_x = (TileX(tile) / N) * N;
uint grid_y = (TileY(tile) / N) * N;
this->area.Add(TileXY(grid_x, grid_y));
this->area.Add(TileXY(grid_x + N - 1, grid_y + N - 1));
/* Allocate new storage. */
T *new_data = CallocT<T>(this->area.w / N * this->area.h / N);
if (old_w > 0) {
/* Copy old data if present. */
uint offs_x = old_left - TileX(this->area.tile) / N;
uint offs_y = old_top - TileY(this->area.tile) / N;
for (uint row = 0; row < old_h; row++) {
MemCpyT(&new_data[(row + offs_y) * this->area.w / N + offs_x], &this->data[row * old_w], old_w);
}
}
free(this->data);
this->data = new_data;
}
static Direction ShipGetNewDirectionFromTiles(TileIndex new_tile, TileIndex old_tile)
{
uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
TileX(new_tile) - TileX(old_tile) + 1;
assert(offs < 11 && offs != 3 && offs != 7);
return _new_vehicle_direction_table[offs];
}
/**
* Add a single tile to a tile area; enlarge if needed.
* @param to_add The tile to add
*/
void TileArea::Add(TileIndex to_add)
{
if (this->tile == INVALID_TILE) {
this->tile = to_add;
this->w = 1;
this->h = 1;
return;
}
uint sx = TileX(this->tile);
uint sy = TileY(this->tile);
uint ex = sx + this->w - 1;
uint ey = sy + this->h - 1;
uint ax = TileX(to_add);
uint ay = TileY(to_add);
sx = min(ax, sx);
sy = min(ay, sy);
ex = max(ax, ex);
ey = max(ay, ey);
this->tile = TileXY(sx, sy);
this->w = ex - sx + 1;
this->h = ey - sy + 1;
}
/**
* Construct the iterator.
* @param corner1 Tile from where to begin iterating.
* @param corner2 Tile where to end the iterating.
*/
DiagonalTileIterator::DiagonalTileIterator(TileIndex corner1, TileIndex corner2) : TileIterator(corner2), base_x(TileX(corner2)), base_y(TileY(corner2)), a_cur(0), b_cur(0)
{
assert(corner1 < MapSize());
assert(corner2 < MapSize());
int dist_x = TileX(corner1) - TileX(corner2);
int dist_y = TileY(corner1) - TileY(corner2);
this->a_max = dist_x + dist_y;
this->b_max = dist_y - dist_x;
/* Unfortunately we can't find a new base and make all a and b positive because
* the new base might be a "flattened" corner where there actually is no single
* tile. If we try anyway the result is either inaccurate ("one off" half of the
* time) or the code gets much more complex;
*
* We also need to increment here to have equality as marker for the end of a row or
* column. Like that it's shorter than having another if/else in operator++
*/
if (this->a_max > 0) {
this->a_max++;
} else {
this->a_max--;
}
if (this->b_max > 0) {
this->b_max++;
} else {
this->b_max--;
}
}
static uint NPFSlopeCost(AyStarNode *current)
{
TileIndex next = current->tile + TileOffsByDiagDir(TrackdirToExitdir(current->direction));
/* Get center of tiles */
int x1 = TileX(current->tile) * TILE_SIZE + TILE_SIZE / 2;
int y1 = TileY(current->tile) * TILE_SIZE + TILE_SIZE / 2;
int x2 = TileX(next) * TILE_SIZE + TILE_SIZE / 2;
int y2 = TileY(next) * TILE_SIZE + TILE_SIZE / 2;
int dx4 = (x2 - x1) / 4;
int dy4 = (y2 - y1) / 4;
/* Get the height on both sides of the tile edge.
* Avoid testing the height on the tile-center. This will fail for halftile-foundations.
*/
int z1 = GetSlopeZ(x1 + dx4, y1 + dy4);
int z2 = GetSlopeZ(x2 - dx4, y2 - dy4);
if (z2 - z1 > 1) {
/* Slope up */
return _settings_game.pf.npf.npf_rail_slope_penalty;
}
return 0;
/* Should we give a bonus for slope down? Probably not, we
* could just substract that bonus from the penalty, because
* there is only one level of steepness... */
}
/**
* Adds all tiles that incident with the north corner of a specific tile to the "tile_table" in a TerraformerState.
*
* @param ts TerraformerState.
* @param tile Tile.
* @ingroup dirty
*/
static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile)
{
/* Make sure all tiles passed to TerraformAddDirtyTile are within [0, MapSize()] */
if (TileY(tile) >= 1) TerraformAddDirtyTile(ts, tile + TileDiffXY( 0, -1));
if (TileY(tile) >= 1 && TileX(tile) >= 1) TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, -1));
if (TileX(tile) >= 1) TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, 0));
TerraformAddDirtyTile(ts, tile);
}
bool StationRect::AfterRemoveRect(BaseStation *st, TileIndex tile, int w, int h)
{
assert(PtInExtendedRect(TileX(tile), TileY(tile)));
assert(PtInExtendedRect(TileX(tile) + w - 1, TileY(tile) + h - 1));
bool empty = this->AfterRemoveTile(st, tile);
if (w != 1 || h != 1) empty = empty || AfterRemoveTile(st, TILE_ADDXY(tile, w - 1, h - 1));
return empty;
}
bool StationRect::AfterRemoveRect(BaseStation *st, TileArea ta)
{
assert(this->PtInExtendedRect(TileX(ta.tile), TileY(ta.tile)));
assert(this->PtInExtendedRect(TileX(ta.tile) + ta.w - 1, TileY(ta.tile) + ta.h - 1));
bool empty = this->AfterRemoveTile(st, ta.tile);
if (ta.w != 1 || ta.h != 1) empty = empty || this->AfterRemoveTile(st, TILE_ADDXY(ta.tile, ta.w - 1, ta.h - 1));
return empty;
}
/** A small helper function to initialize the terrain */
static void TgenSetTileHeight(TileIndex tile, int height)
{
SetTileHeight(tile, height);
/* Only clear the tiles within the map area. */
if (TileX(tile) != MapMaxX() && TileY(tile) != MapMaxY() &&
(!_settings_game.construction.freeform_edges || (TileX(tile) != 0 && TileY(tile) != 0))) {
MakeClear(tile, CLEAR_GRASS, 3);
}
}
/**
* Gets the distance to the edge of the map in given direction.
* @param tile the tile to get the distance from
* @param diagdir the direction of interest
* @return the distance from the edge in tiles
*/
uint DistanceFromEdgeDir(TileIndex tile, DiagDirection dir)
{
switch (dir) {
case DIAGDIR_NE: return TileX(tile) - (_settings_game.construction.freeform_edges ? 1 : 0);
case DIAGDIR_NW: return TileY(tile) - (_settings_game.construction.freeform_edges ? 1 : 0);
case DIAGDIR_SW: return MapMaxX() - TileX(tile) - 1;
case DIAGDIR_SE: return MapMaxY() - TileY(tile) - 1;
default: NOT_REACHED();
}
}
/**
* Get top height of the tile inside the map.
* @param t Tile to compute height of
* @return Maximum height of the tile
*/
int GetTileMaxZ(TileIndex t)
{
if (TileX(t) == MapMaxX() || TileY(t) == MapMaxY()) return TileHeightOutsideMap(TileX(t), TileY(t));
int h = TileHeight(t); // N corner
h = max<int>(h, TileHeight(t + TileDiffXY(1, 0))); // W corner
h = max<int>(h, TileHeight(t + TileDiffXY(0, 1))); // E corner
h = max<int>(h, TileHeight(t + TileDiffXY(1, 1))); // S corner
return h;
}
/**
* Construct this tile area based on two points.
* @param start the start of the area
* @param end the end of the area
*/
TileArea::TileArea(TileIndex start, TileIndex end)
{
uint sx = TileX(start);
uint sy = TileY(start);
uint ex = TileX(end);
uint ey = TileY(end);
if (sx > ex) Swap(sx, ex);
if (sy > ey) Swap(sy, ey);
this->tile = TileXY(sx, sy);
this->w = ex - sx + 1;
this->h = ey - sy + 1;
}
static uint32 GetPlatformInfoHelper(TileIndex tile, bool check_type, bool check_axis, bool centred)
{
int tx = TileX(tile);
int ty = TileY(tile);
int sx = TileX(FindRailStationEnd(tile, TileDiffXY(-1, 0), check_type, check_axis));
int sy = TileY(FindRailStationEnd(tile, TileDiffXY( 0, -1), check_type, check_axis));
int ex = TileX(FindRailStationEnd(tile, TileDiffXY( 1, 0), check_type, check_axis)) + 1;
int ey = TileY(FindRailStationEnd(tile, TileDiffXY( 0, 1), check_type, check_axis)) + 1;
tx -= sx; ex -= sx;
ty -= sy; ey -= sy;
return GetPlatformInfo(GetRailStationAxis(tile), GetStationGfx(tile), ex, ey, tx, ty, centred);
}
CommandCost StationRect::BeforeAddTile(TileIndex tile, StationRectMode mode)
{
int x = TileX(tile);
int y = TileY(tile);
if (this->IsEmpty()) {
/* we are adding the first station tile */
if (mode != ADD_TEST) {
this->left = this->right = x;
this->top = this->bottom = y;
}
} else if (!this->PtInExtendedRect(x, y)) {
/* current rect is not empty and new point is outside this rect
* make new spread-out rectangle */
Rect new_rect = {min(x, this->left), min(y, this->top), max(x, this->right), max(y, this->bottom)};
/* check new rect dimensions against preset max */
int w = new_rect.right - new_rect.left + 1;
int h = new_rect.bottom - new_rect.top + 1;
if (mode != ADD_FORCE && (w > _settings_game.station.station_spread || h > _settings_game.station.station_spread)) {
assert(mode != ADD_TRY);
return_cmd_error(STR_ERROR_STATION_TOO_SPREAD_OUT);
}
/* spread-out ok, return true */
if (mode != ADD_TEST) {
/* we should update the station rect */
*this = new_rect;
}
} else {
; // new point is inside the rect, we don't need to do anything
}
return CommandCost();
}
/**
* Calculates the minimum distance traveled to get from t0 to t1 when only
* using tracks (ie, only making 45 degree turns). Returns the distance in the
* NPF scale, ie the number of full tiles multiplied by NPF_TILE_LENGTH to
* prevent rounding.
*/
static uint NPFDistanceTrack(TileIndex t0, TileIndex t1)
{
const uint dx = Delta(TileX(t0), TileX(t1));
const uint dy = Delta(TileY(t0), TileY(t1));
const uint straightTracks = 2 * min(dx, dy); // The number of straight (not full length) tracks
/* OPTIMISATION:
* Original: diagTracks = max(dx, dy) - min(dx,dy);
* Proof:
* (dx+dy) - straightTracks == (min + max) - straightTracks = min + max - 2 * min = max - min */
const uint diagTracks = dx + dy - straightTracks; // The number of diagonal (full tile length) tracks.
/* Don't factor out NPF_TILE_LENGTH below, this will round values and lose
* precision */
return diagTracks * NPF_TILE_LENGTH + straightTracks * NPF_TILE_LENGTH * STRAIGHT_TRACK_LENGTH;
}
/* Calcs the heuristic to the target station or tile. For train stations, it
* takes into account the direction of approach.
*/
static int32 NPFCalcStationOrTileHeuristic(AyStar *as, AyStarNode *current, OpenListNode *parent)
{
NPFFindStationOrTileData *fstd = (NPFFindStationOrTileData*)as->user_target;
NPFFoundTargetData *ftd = (NPFFoundTargetData*)as->user_path;
TileIndex from = current->tile;
TileIndex to = fstd->dest_coords;
uint dist;
/* for train-stations, we are going to aim for the closest station tile */
if (as->user_data[NPF_TYPE] != TRANSPORT_WATER && fstd->station_index != INVALID_STATION)
to = CalcClosestStationTile(fstd->station_index, from, fstd->station_type);
if (as->user_data[NPF_TYPE] == TRANSPORT_ROAD) {
/* Since roads only have diagonal pieces, we use manhattan distance here */
dist = DistanceManhattan(from, to) * NPF_TILE_LENGTH;
} else {
/* Ships and trains can also go diagonal, so the minimum distance is shorter */
dist = NPFDistanceTrack(from, to);
}
DEBUG(npf, 4, "Calculating H for: (%d, %d). Result: %d", TileX(current->tile), TileY(current->tile), dist);
if (dist < ftd->best_bird_dist) {
ftd->best_bird_dist = dist;
ftd->best_trackdir = (Trackdir)current->user_data[NPF_TRACKDIR_CHOICE];
}
return dist;
}
ExtraViewportWindow(WindowDesc *desc, int window_number, TileIndex tile) : Window(desc)
{
this->InitNested(window_number);
NWidgetViewport *nvp = this->GetWidget<NWidgetViewport>(WID_EV_VIEWPORT);
nvp->InitializeViewport(this, 0, ZOOM_LVL_VIEWPORT);
if (_settings_client.gui.zoom_min == ZOOM_LVL_VIEWPORT) this->DisableWidget(WID_EV_ZOOM_IN);
Point pt;
if (tile == INVALID_TILE) {
/* No tile? Use center of main viewport. */
const Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
/* center on same place as main window (zoom is maximum, no adjustment needed) */
pt.x = w->viewport->scrollpos_x + w->viewport->virtual_width / 2;
pt.y = w->viewport->scrollpos_y + w->viewport->virtual_height / 2;
} else {
pt = RemapCoords(TileX(tile) * TILE_SIZE + TILE_SIZE / 2, TileY(tile) * TILE_SIZE + TILE_SIZE / 2, TileHeight(tile));
}
this->viewport->scrollpos_x = pt.x - this->viewport->virtual_width / 2;
this->viewport->scrollpos_y = pt.y - this->viewport->virtual_height / 2;
this->viewport->dest_scrollpos_x = this->viewport->scrollpos_x;
this->viewport->dest_scrollpos_y = this->viewport->scrollpos_y;
}
ExtraViewportWindow(const WindowDesc *desc, int window_number, TileIndex tile) : Window()
{
this->InitNested(desc, window_number);
NWidgetViewport *nvp = this->GetWidget<NWidgetViewport>(EVW_VIEWPORT);
nvp->InitializeViewport(this, 0, ZOOM_LVL_NORMAL);
this->DisableWidget(EVW_ZOOMIN);
Point pt;
if (tile == INVALID_TILE) {
/* the main window with the main view */
const Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
/* center on same place as main window (zoom is maximum, no adjustment needed) */
pt.x = w->viewport->scrollpos_x + w->viewport->virtual_width / 2;
pt.y = w->viewport->scrollpos_y + w->viewport->virtual_height / 2;
} else {
pt = RemapCoords(TileX(tile) * TILE_SIZE + TILE_SIZE / 2, TileY(tile) * TILE_SIZE + TILE_SIZE / 2, TileHeight(tile));
}
this->viewport->scrollpos_x = pt.x - this->viewport->virtual_width / 2;
this->viewport->scrollpos_y = pt.y - this->viewport->virtual_height / 2;
this->viewport->dest_scrollpos_x = this->viewport->scrollpos_x;
this->viewport->dest_scrollpos_y = this->viewport->scrollpos_y;
}
void Load_TOWN()
{
int index;
while ((index = SlIterateArray()) != -1) {
Town *t = new (index) Town();
SlObject(t, _town_desc);
t->LoadCargoSourceSink();
if (IsSavegameVersionBefore(161)) continue;
SlObject(&t->cargo_accepted, GetTileMatrixDesc());
if (t->cargo_accepted.area.w != 0) {
uint arr_len = t->cargo_accepted.area.w / AcceptanceMatrix::GRID * t->cargo_accepted.area.h / AcceptanceMatrix::GRID;
t->cargo_accepted.data = MallocT<uint32>(arr_len);
SlArray(t->cargo_accepted.data, arr_len, SLE_UINT32);
/* Rebuild total cargo acceptance. */
UpdateTownCargoTotal(t);
}
/* Cache the aligned tile index of the centre tile. */
uint town_x = (TileX(t->xy) / AcceptanceMatrix::GRID) * AcceptanceMatrix::GRID;
uint town_y = (TileY(t->xy) / AcceptanceMatrix::GRID) * AcceptanceMatrix::GRID;
t->xy_aligned= TileXY(town_x, town_y);
}
}
/**
* Callback function for Station::RecomputeIndustriesNear()
* Tests whether tile is an industry and possibly adds
* the industry to station's industries_near list.
* @param ind_tile tile to check
* @param user_data pointer to RectAndIndustryVector
* @return always false, we want to search all tiles
*/
static bool FindIndustryToDeliver(TileIndex ind_tile, void *user_data)
{
/* Only process industry tiles */
if (!IsTileType(ind_tile, MP_INDUSTRY)) return false;
RectAndIndustryVector *riv = (RectAndIndustryVector *)user_data;
Industry *ind = Industry::GetByTile(ind_tile);
/* Don't check further if this industry is already in the list */
if (riv->industries_near->Contains(ind)) return false;
/* Only process tiles in the station acceptance rectangle */
int x = TileX(ind_tile);
int y = TileY(ind_tile);
if (x < riv->rect.left || x > riv->rect.right || y < riv->rect.top || y > riv->rect.bottom) return false;
/* Include only industries that can accept cargo */
uint cargo_index;
for (cargo_index = 0; cargo_index < lengthof(ind->accepts_cargo); cargo_index++) {
if (ind->accepts_cargo[cargo_index] != CT_INVALID) break;
}
if (cargo_index >= lengthof(ind->accepts_cargo)) return false;
*riv->industries_near->Append() = ind;
return false;
}
/**
* Copy and paste heights from one map to another.
*
* @param src_area Area to read heights from. It consists of tiles, not of tile corners
* e.g. if you pass a single tile area then 4 corners will be terraformed.
* @param dst_area_north Norhern tile of the area to write heigths at.
* @param transformation Transformation to perform on tile indices.
* @param height_delta Offset, number of units to add to each height.
*/
void CopyPasteHeights(const GenericTileArea &src_area, GenericTileIndex dst_area_north, DirTransformation transformation, int height_delta)
{
/* include also corners at SW and SE edges */
GenericTileArea src_corners(src_area.tile, src_area.w + 1, src_area.h + 1);
/* transform the most northern corner */
GenericTileIndex transformed_north_corner = src_corners.TransformedNorth(dst_area_north, transformation);
#ifdef WITH_ASSERT
{
assert(IsValidTileIndex(dst_area_north));
uint x = TileX(dst_area_north);
uint y = TileY(dst_area_north);
assert(!IsMainMapTile(dst_area_north) || !_settings_game.construction.freeform_edges || (x > 0 && y > 0));
Dimension dst_dim = { src_corners.w, src_corners.h };
dst_dim = TransformDimension(dst_dim, transformation);
assert(x + dst_dim.width <= MapSizeX(MapOf(dst_area_north)) && y + dst_dim.height <= MapSizeY(MapOf(dst_area_north)));
}
#endif /* WITH_ASSERT */
if (IsMainMapTile(dst_area_north)) {
HeightsCopyPastingIterator iter(src_corners, AsMainMapTile(transformed_north_corner), transformation, height_delta);
TerraformPasteTiles(&iter);
} else {
for (TransformationTileIteratorT<true, true> iter(src_corners, transformed_north_corner, transformation); IsValidTileIndex(iter); ++iter) {
SetTileHeight(iter.DstTile(), TileHeight(iter.SrcTile()));
}
}
}
TileIndex TileAdd(TileIndex tile, TileIndexDiff add,
const char *exp, const char *file, int line)
{
int dx;
int dy;
uint x;
uint y;
dx = add & MapMaxX();
if (dx >= (int)MapSizeX() / 2) dx -= MapSizeX();
dy = (add - dx) / (int)MapSizeX();
x = TileX(tile) + dx;
y = TileY(tile) + dy;
if (x >= MapSizeX() || y >= MapSizeY()) {
char buf[512];
snprintf(buf, lengthof(buf), "TILE_ADD(%s) when adding 0x%.4X and 0x%.4X failed",
exp, tile, add);
#if !defined(_MSC_VER) || defined(WINCE)
fprintf(stderr, "%s:%d %s\n", file, line, buf);
#else
_assert(buf, (char*)file, line);
#endif
}
assert(TileXY(x, y) == TILE_MASK(tile + add));
return TileXY(x, y);
}
/**
* Place a sign at the given coordinates. Ownership of sign has
* no effect whatsoever except for the colour the sign gets for easy recognition,
* but everybody is able to rename/remove it.
* @param tile tile to place sign at
* @param flags type of operation
* @param p1 unused
* @param p2 unused
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdPlaceSign(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
/* Try to locate a new sign */
if (!Sign::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_SIGNS);
/* Check sign text length if any */
if (!StrEmpty(text) && Utf8StringLength(text) >= MAX_LENGTH_SIGN_NAME_CHARS) return CMD_ERROR;
/* When we execute, really make the sign */
if (flags & DC_EXEC) {
Sign *si = new Sign(_current_company);
int x = TileX(tile) * TILE_SIZE;
int y = TileY(tile) * TILE_SIZE;
si->x = x;
si->y = y;
si->z = GetSlopeZ(x, y);
if (!StrEmpty(text)) {
si->name = strdup(text);
}
si->UpdateVirtCoord();
InvalidateWindowData(WC_SIGN_LIST, 0, 0);
_new_sign_id = si->index;
}
return CommandCost();
}
/*
* Adds a node from where to start an algorithm. Multiple nodes can be added
* if wanted. You should make sure that clear() is called before adding nodes
* if the AyStar has been used before (though the normal main loop calls
* clear() automatically when the algorithm finishes
* g is the cost for starting with this node.
*/
static void AyStarMain_AddStartNode(AyStar *aystar, AyStarNode *start_node, uint g)
{
#ifdef AYSTAR_DEBUG
printf("[AyStar] Starting A* Algorithm from node (%d, %d, %d)\n",
TileX(start_node->tile), TileY(start_node->tile), start_node->direction);
#endif
AyStarMain_OpenList_Add(aystar, NULL, start_node, 0, g);
}
/**
* Adds a node from where to start an algorithm. Multiple nodes can be added
* if wanted. You should make sure that #Clear() is called before adding nodes
* if the #AyStar has been used before (though the normal main loop calls
* #Clear() automatically when the algorithm finishes.
* @param start_node Node to start with.
* @param g the cost for starting with this node.
*/
void AyStar::AddStartNode(AyStarNode *start_node, uint g)
{
#ifdef AYSTAR_DEBUG
printf("[AyStar] Starting A* Algorithm from node (%d, %d, %d)\n",
TileX(start_node->tile), TileY(start_node->tile), start_node->direction);
#endif
this->OpenListAdd(NULL, start_node, 0, g);
}
/**
* Update the virtual coords needed to draw the waypoint sign.
*/
void Waypoint::UpdateVirtCoord()
{
Point pt = RemapCoords2(TileX(this->xy) * TILE_SIZE, TileY(this->xy) * TILE_SIZE);
SetDParam(0, this->index);
this->sign.UpdatePosition(pt.x, pt.y - 32 * ZOOM_LVL_BASE, STR_VIEWPORT_WAYPOINT);
/* Recenter viewport */
InvalidateWindowData(WC_WAYPOINT_VIEW, this->index);
}