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-rw-r--r--src/station.cpp145
-rw-r--r--src/station.h27
-rw-r--r--src/station_cmd.cpp171
3 files changed, 183 insertions, 160 deletions
diff --git a/src/station.cpp b/src/station.cpp
index 3d932f087..7a6d1a7e0 100644
--- a/src/station.cpp
+++ b/src/station.cpp
@@ -35,8 +35,6 @@
#include "date.h"
#include "helpers.hpp"
-void StationRect_Init(Station *st); // don't worry, will be removed soon
-
Station::Station(TileIndex tile)
{
DEBUG(station, cDebugCtorLevel, "I+%3d", index);
@@ -54,8 +52,6 @@ Station::Station(TileIndex tile)
random_bits = Random();
waiting_triggers = 0;
-
- StationRect_Init(this);
}
/**
@@ -168,3 +164,144 @@ bool Station::TileBelongsToRailStation(TileIndex tile) const
_error_message = STR_3008_TOO_MANY_STATIONS_LOADING;
return NULL;
}
+
+
+
+/************************************************************************/
+/* StationRect implementation */
+/************************************************************************/
+
+StationRect::StationRect()
+{
+ MakeEmpty();
+}
+
+void StationRect::MakeEmpty()
+{
+ left = top = right = bottom = 0;
+}
+
+bool StationRect::PtInRectXY(int x, int y) const
+{
+ return (left <= x && x <= right && top <= y && y <= bottom);
+}
+
+bool StationRect::IsEmpty() const
+{
+ return (left == 0 || left > right || top > bottom);
+}
+
+bool StationRect::BeforeAddTile(TileIndex tile, StationRectMode mode)
+{
+ int x = TileX(tile);
+ int y = TileY(tile);
+ if (IsEmpty()) {
+ // we are adding the first station tile
+ left = right = x;
+ top = bottom = y;
+ } else if (!PtInRectXY(x, y)) {
+ // current rect is not empty and new point is outside this rect
+ // make new spread-out rectangle
+ Rect new_rect = {min(x, left), min(y, top), max(x, right), max(y, 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 > _patches.station_spread || h > _patches.station_spread)) {
+ assert(mode != ADD_TRY);
+ _error_message = STR_306C_STATION_TOO_SPREAD_OUT;
+ return false;
+ }
+ // 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 true;
+}
+
+bool StationRect::BeforeAddRect(TileIndex tile, int w, int h, StationRectMode mode)
+{
+ return BeforeAddTile(tile, mode) && BeforeAddTile(TILE_ADDXY(tile, w - 1, h - 1), mode);
+}
+
+/*static*/ bool StationRect::ScanForStationTiles(StationID st_id, int left_a, int top_a, int right_a, int bottom_a)
+{
+ TileIndex top_left = TileXY(left_a, top_a);
+ int width = right_a - left_a + 1;
+ int height = bottom_a - top_a + 1;
+ BEGIN_TILE_LOOP(tile, width, height, top_left)
+ if (IsTileType(tile, MP_STATION) && GetStationIndex(tile) == st_id) return true;
+ END_TILE_LOOP(tile, width, height, top_left);
+ return false;
+}
+
+bool StationRect::AfterRemoveTile(Station *st, TileIndex tile)
+{
+ int x = TileX(tile);
+ int y = TileY(tile);
+ bool reduce_x, reduce_y;
+
+ // look if removed tile was on the bounding rect edge
+ // and try to reduce the rect by this edge
+ // do it until we have empty rect or nothing to do
+ for (;;) {
+ // check if removed tile is on rect edge
+ bool left_edge = (x == left);
+ bool right_edge = (x == right);
+ bool top_edge = (y == top);
+ bool bottom_edge = (y == bottom);
+ // can we reduce the rect in either direction?
+ reduce_x = ((left_edge || right_edge) && !ScanForStationTiles(st->index, x, top, x, bottom));
+ reduce_y = ((top_edge || bottom_edge) && !ScanForStationTiles(st->index, left, y, right, y));
+ if (!(reduce_x || reduce_y)) break; // nothing to do (can't reduce)
+ if (reduce_x) {
+ // reduce horizontally
+ if (left_edge) {
+ // move left edge right
+ left = x = x + 1;
+ } else {
+ // move right edge left
+ right = x = x - 1;
+ }
+ }
+ if (reduce_y) {
+ // reduce vertically
+ if (top_edge) {
+ // move top edge down
+ top = y = y + 1;
+ } else {
+ // move bottom edge up
+ bottom = y = y - 1;
+ }
+ }
+ if (left > right || top > bottom) {
+ // can't continue, if the remaining rectangle is empty
+ MakeEmpty();
+ return true; // empty remaining rect
+ }
+ }
+ return false; // non-empty remaining rect
+}
+
+bool StationRect::AfterRemoveRect(Station *st, TileIndex tile, int w, int h)
+{
+ bool empty;
+ assert(PtInRectXY(TileX(tile), TileY(tile)));
+ assert(PtInRectXY(TileX(tile) + w - 1, TileY(tile) + h - 1));
+ empty = AfterRemoveTile(st, tile);
+ if (w != 1 || h != 1) empty = empty || AfterRemoveTile(st, TILE_ADDXY(tile, w - 1, h - 1));
+ return empty;
+}
+
+StationRect& StationRect::operator = (Rect src)
+{
+ left = src.left;
+ top = src.top;
+ right = src.right;
+ bottom = src.bottom;
+ return *this;
+}
+
diff --git a/src/station.h b/src/station.h
index 73486bffe..e2ec2e8a7 100644
--- a/src/station.h
+++ b/src/station.h
@@ -59,6 +59,29 @@ typedef struct StationSpecList {
uint8 localidx; /// Station ID within GRF of station
} StationSpecList;
+/** StationRect - used to track station spread out rectangle - cheaper than scanning whole map */
+struct StationRect : public Rect {
+ enum StationRectMode
+ {
+ ADD_TEST = 0,
+ ADD_TRY,
+ ADD_FORCE
+ };
+
+ StationRect();
+ void MakeEmpty();
+ bool PtInRectXY(int x, int y) const;
+ bool IsEmpty() const;
+ bool BeforeAddTile(TileIndex tile, StationRectMode mode);
+ bool BeforeAddRect(TileIndex tile, int w, int h, StationRectMode mode);
+ bool AfterRemoveTile(Station *st, TileIndex tile);
+ bool AfterRemoveRect(Station *st, TileIndex tile, int w, int h);
+
+ static bool ScanForStationTiles(StationID st_id, int left_a, int top_a, int right_a, int bottom_a);
+
+ StationRect& operator = (Rect src);
+};
+
struct Station {
TileIndex xy;
RoadStop *bus_stops;
@@ -107,9 +130,9 @@ struct Station {
byte bus_stop_status_obsolete;
byte blocked_months_obsolete;
- Rect rect; ///< Station spread out rectangle (not saved) maintained by StationRect_xxx() functions
+ StationRect rect; ///< Station spread out rectangle (not saved) maintained by StationRect_xxx() functions
- static const int cDebugCtorLevel = 1;
+ static const int cDebugCtorLevel = 3;
Station(TileIndex tile = 0);
~Station();
diff --git a/src/station_cmd.cpp b/src/station_cmd.cpp
index 1527cfac3..7cef040c5 100644
--- a/src/station_cmd.cpp
+++ b/src/station_cmd.cpp
@@ -37,21 +37,6 @@
#include <memory> // for auto_ptr
-typedef enum StationRectModes
-{
- RECT_MODE_TEST = 0,
- RECT_MODE_TRY,
- RECT_MODE_FORCE
-} StationRectMode;
-
-void StationRect_Init(Station *st);
-static bool StationRect_IsEmpty(Station *st);
-static bool StationRect_BeforeAddTile(Station *st, TileIndex tile, StationRectMode mode);
-static bool StationRect_BeforeAddRect(Station *st, TileIndex tile, int w, int h, StationRectMode mode);
-static bool StationRect_AfterRemoveTile(Station *st, TileIndex tile);
-static bool StationRect_AfterRemoveRect(Station *st, TileIndex tile, int w, int h);
-
-
/**
* Called if a new block is added to the station-pool
*/
@@ -684,9 +669,9 @@ static void UpdateStationAcceptance(Station *st, bool show_msg)
static void UpdateStationSignCoord(Station *st)
{
- Rect *r = &st->rect;
+ StationRect *r = &st->rect;
- if (StationRect_IsEmpty(st)) return; // no tiles belong to this station
+ if (r->IsEmpty()) return; // no tiles belong to this station
// clamp sign coord to be inside the station rect
st->xy = TileXY(clampu(TileX(st->xy), r->left, r->right), clampu(TileY(st->xy), r->top, r->bottom));
@@ -970,7 +955,7 @@ int32 CmdBuildRailroadStation(TileIndex tile_org, uint32 flags, uint32 p1, uint3
}
//XXX can't we pack this in the "else" part of the if above?
- if (!StationRect_BeforeAddRect(st, tile_org, w_org, h_org, RECT_MODE_TEST)) return CMD_ERROR;
+ if (!st->rect.BeforeAddRect(tile_org, w_org, h_org, StationRect::ADD_TEST)) return CMD_ERROR;
} else {
/* allocate and initialize new station */
st = new Station(tile_org);
@@ -1031,7 +1016,7 @@ int32 CmdBuildRailroadStation(TileIndex tile_org, uint32 flags, uint32 p1, uint3
st->build_date = _date;
- StationRect_BeforeAddRect(st, tile_org, w_org, h_org, RECT_MODE_TRY);
+ st->rect.BeforeAddRect(tile_org, w_org, h_org, StationRect::ADD_TRY);
tile_delta = (axis == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
track = AxisToTrack(axis);
@@ -1155,7 +1140,7 @@ int32 CmdRemoveFromRailroadStation(TileIndex tile, uint32 flags, uint32 p1, uint
uint specindex = GetCustomStationSpecIndex(tile);
Track track = GetRailStationTrack(tile);
DoClearSquare(tile);
- StationRect_AfterRemoveTile(st, tile);
+ st->rect.AfterRemoveTile(st, tile);
SetSignalsOnBothDir(tile, track);
YapfNotifyTrackLayoutChange(tile, track);
@@ -1272,7 +1257,7 @@ static int32 RemoveRailroadStation(Station *st, TileIndex tile, uint32 flags)
} while (--h);
if (flags & DC_EXEC) {
- StationRect_AfterRemoveRect(st, st->train_tile, st->trainst_w, st->trainst_h);
+ st->rect.AfterRemoveRect(st, st->train_tile, st->trainst_w, st->trainst_h);
st->train_tile = 0;
st->trainst_w = st->trainst_h = 0;
@@ -1405,7 +1390,7 @@ int32 CmdBuildRoadStop(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
return_cmd_error(STR_3009_TOO_CLOSE_TO_ANOTHER_STATION);
}
- if (!StationRect_BeforeAddTile(st, tile, RECT_MODE_TEST)) return CMD_ERROR;
+ if (!st->rect.BeforeAddTile(tile, StationRect::ADD_TEST)) return CMD_ERROR;
FindRoadStopSpot(type, st, &currstop, &prev);
} else {
@@ -1443,7 +1428,7 @@ int32 CmdBuildRoadStop(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
st->build_date = _date;
- StationRect_BeforeAddTile(st, tile, RECT_MODE_TRY);
+ st->rect.BeforeAddTile(tile, StationRect::ADD_TRY);
MakeRoadStop(tile, st->owner, st->index, type ? RS_TRUCK : RS_BUS, (DiagDirection)p1);
@@ -1494,7 +1479,7 @@ static int32 RemoveRoadStop(Station *st, uint32 flags, TileIndex tile)
DeleteRoadStop(cur_stop);
DoClearSquare(tile);
- StationRect_AfterRemoveTile(st, tile);
+ st->rect.AfterRemoveTile(st, tile);
UpdateStationVirtCoordDirty(st);
DeleteStationIfEmpty(st);
@@ -1665,7 +1650,7 @@ int32 CmdBuildAirport(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
if (st->owner != OWNER_NONE && st->owner != _current_player)
return_cmd_error(STR_3009_TOO_CLOSE_TO_ANOTHER_STATION);
- if (!StationRect_BeforeAddRect(st, tile, w, h, RECT_MODE_TEST)) return CMD_ERROR;
+ if (!st->rect.BeforeAddRect(tile, w, h, StationRect::ADD_TEST)) return CMD_ERROR;
if (st->airport_tile != 0)
return_cmd_error(STR_300D_TOO_CLOSE_TO_ANOTHER_AIRPORT);
@@ -1705,7 +1690,7 @@ int32 CmdBuildAirport(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
st->build_date = _date;
- StationRect_BeforeAddRect(st, tile, w, h, RECT_MODE_TRY);
+ st->rect.BeforeAddRect(tile, w, h, StationRect::ADD_TRY);
/* if airport was demolished while planes were en-route to it, the
* positions can no longer be the same (v->u.air.pos), since different
@@ -1771,7 +1756,7 @@ static int32 RemoveAirport(Station *st, uint32 flags)
);
}
- StationRect_AfterRemoveRect(st, tile, w, h);
+ st->rect.AfterRemoveRect(st, tile, w, h);
st->airport_tile = 0;
st->facilities &= ~FACIL_AIRPORT;
@@ -1951,7 +1936,7 @@ int32 CmdBuildDock(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
if (st->owner != OWNER_NONE && st->owner != _current_player)
return_cmd_error(STR_3009_TOO_CLOSE_TO_ANOTHER_STATION);
- if (!StationRect_BeforeAddRect(st, tile, _dock_w_chk[direction], _dock_h_chk[direction], RECT_MODE_TEST)) return CMD_ERROR;
+ if (!st->rect.BeforeAddRect(tile, _dock_w_chk[direction], _dock_h_chk[direction], StationRect::ADD_TEST)) return CMD_ERROR;
if (st->dock_tile != 0) return_cmd_error(STR_304C_TOO_CLOSE_TO_ANOTHER_DOCK);
} else {
@@ -1981,7 +1966,7 @@ int32 CmdBuildDock(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
st->build_date = _date;
- StationRect_BeforeAddRect(st, tile, _dock_w_chk[direction], _dock_h_chk[direction], RECT_MODE_TRY);
+ st->rect.BeforeAddRect(tile, _dock_w_chk[direction], _dock_h_chk[direction], StationRect::ADD_TRY);
MakeDock(tile, st->owner, st->index, direction);
@@ -2012,8 +1997,8 @@ static int32 RemoveDock(Station *st, uint32 flags)
DoClearSquare(tile1);
MakeWater(tile2);
- StationRect_AfterRemoveTile(st, tile1);
- StationRect_AfterRemoveTile(st, tile2);
+ st->rect.AfterRemoveTile(st, tile1);
+ st->rect.AfterRemoveTile(st, tile2);
MarkTileDirtyByTile(tile2);
@@ -2868,7 +2853,7 @@ void AfterLoadStations(void)
for (tile = 0; tile < MapSize(); tile++) {
if (GetTileType(tile) != MP_STATION) continue;
st = GetStationByTile(tile);
- StationRect_BeforeAddTile(st, tile, RECT_MODE_FORCE);
+ st->rect.BeforeAddTile(tile, StationRect::ADD_FORCE);
}
}
@@ -3098,125 +3083,3 @@ extern const ChunkHandler _station_chunk_handlers[] = {
};
-static inline bool PtInRectXY(Rect *r, int x, int y)
-{
- return (r->left <= x && x <= r->right && r->top <= y && y <= r->bottom);
-}
-
-void StationRect_Init(Station *st)
-{
- Rect *r = &st->rect;
- r->left = r->top = r->right = r->bottom = 0;
-}
-
-static bool StationRect_IsEmpty(Station *st)
-{
- return (st->rect.left == 0 || st->rect.left > st->rect.right || st->rect.top > st->rect.bottom);
-}
-
-static bool StationRect_BeforeAddTile(Station *st, TileIndex tile, StationRectMode mode)
-{
- Rect *r = &st->rect;
- int x = TileX(tile);
- int y = TileY(tile);
- if (StationRect_IsEmpty(st)) {
- // we are adding the first station tile
- r->left = r->right = x;
- r->top = r->bottom = y;
- } else if (!PtInRectXY(r, x, y)) {
- // current rect is not empty and new point is outside this rect
- // make new spread-out rectangle
- Rect new_rect = {min(x, r->left), min(y, r->top), max(x, r->right), max(y, r->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 != RECT_MODE_FORCE && (w > _patches.station_spread || h > _patches.station_spread)) {
- assert(mode != RECT_MODE_TRY);
- _error_message = STR_306C_STATION_TOO_SPREAD_OUT;
- return false;
- }
- // spread-out ok, return true
- if (mode != RECT_MODE_TEST) {
- // we should update the station rect
- *r = new_rect;
- }
- } else {
- ; // new point is inside the rect, we don't need to do anything
- }
- return true;
-}
-
-static bool StationRect_BeforeAddRect(Station *st, TileIndex tile, int w, int h, StationRectMode mode)
-{
- return StationRect_BeforeAddTile(st, tile, mode) && StationRect_BeforeAddTile(st, TILE_ADDXY(tile, w - 1, h - 1), mode);
-}
-
-static inline bool ScanRectForStationTiles(StationID st_id, int left, int top, int right, int bottom)
-{
- TileIndex top_left = TileXY(left, top);
- int width = right - left + 1;
- int height = bottom - top + 1;
- BEGIN_TILE_LOOP(tile, width, height, top_left)
- if (IsTileType(tile, MP_STATION) && GetStationIndex(tile) == st_id) return true;
- END_TILE_LOOP(tile, width, height, top_left);
- return false;
-}
-
-static bool StationRect_AfterRemoveTile(Station *st, TileIndex tile)
-{
- Rect *r = &st->rect;
- int x = TileX(tile);
- int y = TileY(tile);
- bool reduce_x, reduce_y;
-
- // look if removed tile was on the bounding rect edge
- // and try to reduce the rect by this edge
- // do it until we have empty rect or nothing to do
- for (;;) {
- // check if removed tile is on rect edge
- bool left_edge = (x == r->left);
- bool right_edge = (x == r->right);
- bool top_edge = (y == r->top);
- bool bottom_edge = (y == r->bottom);
- // can we reduce the rect in either direction?
- reduce_x = ((left_edge || right_edge) && !ScanRectForStationTiles(st->index, x, r->top, x, r->bottom));
- reduce_y = ((top_edge || bottom_edge) && !ScanRectForStationTiles(st->index, r->left, y, r->right, y));
- if (!(reduce_x || reduce_y)) break; // nothing to do (can't reduce)
- if (reduce_x) {
- // reduce horizontally
- if (left_edge) {
- // move left edge right
- r->left = x = x + 1;
- } else {
- // move right edge left
- r->right = x = x - 1;
- }
- }
- if (reduce_y) {
- // reduce vertically
- if (top_edge) {
- // move top edge down
- r->top = y = y + 1;
- } else {
- // move bottom edge up
- r->bottom = y = y - 1;
- }
- }
- if (r->left > r->right || r->top > r->bottom) {
- // can't continue, if the remaining rectangle is empty
- StationRect_Init(st);
- return true; // empty remaining rect
- }
- }
- return false; // non-empty remaining rect
-}
-
-static bool StationRect_AfterRemoveRect(Station *st, TileIndex tile, int w, int h)
-{
- bool empty;
- assert(PtInRectXY(&st->rect, TileX(tile), TileY(tile)));
- assert(PtInRectXY(&st->rect, TileX(tile) + w - 1, TileY(tile) + h - 1));
- empty = StationRect_AfterRemoveTile(st, tile);
- if (w != 1 || h != 1) empty = empty || StationRect_AfterRemoveTile(st, TILE_ADDXY(tile, w - 1, h - 1));
- return empty;
-}
generated by cgit v1.2.3-54-g00ecf (git 2.44.0) at 2024-07-18 12:17:24 +0000