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authorterkhen <terkhen@openttd.org>2010-02-20 18:28:21 +0000
committerterkhen <terkhen@openttd.org>2010-02-20 18:28:21 +0000
commit2ae5590f6330897091c02c9d8626801fa3028303 (patch)
tree7e07e02cd64d525c10fba6d8f53b83322b8cc61c /src
parentd1cce945257dec6f2f498dbd03854793f95b6019 (diff)
downloadopenttd-2ae5590f6330897091c02c9d8626801fa3028303.tar.xz
(svn r19172) -Codechange: Move road checks from CmdBuildRoadStop to CheckFlatLandRoadStop.
Diffstat (limited to 'src')
-rw-r--r--src/station_cmd.cpp70
1 files changed, 33 insertions, 37 deletions
diff --git a/src/station_cmd.cpp b/src/station_cmd.cpp
index 97fd99448..e9527a386 100644
--- a/src/station_cmd.cpp
+++ b/src/station_cmd.cpp
@@ -804,22 +804,51 @@ static CommandCost CheckFlatLandRailStation(TileArea tile_area, DoCommandFlag fl
* @param tile Location of the stop.
* @param flags Operation to perform.
* @param invalid_dirs Prohibited directions (set of DiagDirections).
- * @param check_clear True if clearing tile should be performed (in that case, cost will be added).
+ * @param build_over_road True if trying to build a drive through station over a normal road tile.
+ * @param rts Road types to build. Bits already built at the tile will be removed.
* @return The cost in case of success, or an error code if it failed.
*/
-static CommandCost CheckFlatLandRoadStop(TileIndex tile, DoCommandFlag flags, uint invalid_dirs, bool check_clear = true)
+static CommandCost CheckFlatLandRoadStop(TileIndex tile, DoCommandFlag flags, uint invalid_dirs, bool build_over_road, RoadTypes &rts)
{
int allowed_z = -1;
CommandCost cost = CheckBuildableTile(tile, invalid_dirs, allowed_z);
if (cost.Failed()) return cost;
- if (check_clear) {
+ RoadTypes cur_rts = IsNormalRoadTile(tile) ? GetRoadTypes(tile) : ROADTYPES_NONE;
+ uint num_roadbits = 0;
+ if (build_over_road) {
+ /* There is a road, check if we can build road+tram stop over it. */
+ if (HasBit(cur_rts, ROADTYPE_ROAD)) {
+ Owner road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
+ if (road_owner == OWNER_TOWN) {
+ if (!_settings_game.construction.road_stop_on_town_road) return_cmd_error(STR_ERROR_DRIVE_THROUGH_ON_TOWN_ROAD);
+ } else if (!_settings_game.construction.road_stop_on_competitor_road && road_owner != OWNER_NONE && !CheckOwnership(road_owner)) {
+ return CMD_ERROR;
+ }
+ num_roadbits += CountBits(GetRoadBits(tile, ROADTYPE_ROAD));
+ }
+
+ /* There is a tram, check if we can build road+tram stop over it. */
+ if (HasBit(cur_rts, ROADTYPE_TRAM)) {
+ Owner tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
+ if (!_settings_game.construction.road_stop_on_competitor_road && tram_owner != OWNER_NONE && !CheckOwnership(tram_owner)) {
+ return CMD_ERROR;
+ }
+ num_roadbits += CountBits(GetRoadBits(tile, ROADTYPE_TRAM));
+ }
+
+ /* Do not remove roadtypes! */
+ rts |= cur_rts;
+ } else {
CommandCost ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
if (ret.Failed()) return ret;
cost.AddCost(ret);
}
+ uint roadbits_to_build = CountBits(rts) * 2 - num_roadbits;
+ cost.AddCost(_price[PR_BUILD_ROAD] * roadbits_to_build);
+
return cost;
}
@@ -1599,41 +1628,8 @@ CommandCost CmdBuildRoadStop(TileIndex tile, DoCommandFlag flags, uint32 p1, uin
if (!CheckIfAuthorityAllowsNewStation(tile, flags)) return CMD_ERROR;
- RoadTypes cur_rts = IsNormalRoadTile(tile) ? GetRoadTypes(tile) : ROADTYPES_NONE;
- uint num_roadbits = 0;
- /* Not allowed to build over this road */
- if (build_over_road) {
- /* there is a road, check if we can build road+tram stop over it */
- if (HasBit(cur_rts, ROADTYPE_ROAD)) {
- road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
- if (road_owner == OWNER_TOWN) {
- if (!_settings_game.construction.road_stop_on_town_road) return_cmd_error(STR_ERROR_DRIVE_THROUGH_ON_TOWN_ROAD);
- } else if (!_settings_game.construction.road_stop_on_competitor_road && road_owner != OWNER_NONE && !CheckOwnership(road_owner)) {
- return CMD_ERROR;
- }
- num_roadbits += CountBits(GetRoadBits(tile, ROADTYPE_ROAD));
- }
-
- /* there is a tram, check if we can build road+tram stop over it */
- if (HasBit(cur_rts, ROADTYPE_TRAM)) {
- tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
- if (!_settings_game.construction.road_stop_on_competitor_road && tram_owner != OWNER_NONE && !CheckOwnership(tram_owner)) {
- return CMD_ERROR;
- }
- num_roadbits += CountBits(GetRoadBits(tile, ROADTYPE_TRAM));
- }
-
- /* Don't allow building the roadstop when vehicles are already driving on it */
- if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
-
- /* Do not remove roadtypes! */
- rts |= cur_rts;
- }
-
- CommandCost cost = CheckFlatLandRoadStop(tile, flags, is_drive_through ? 5 << p1 : 1 << p1, !build_over_road);
+ CommandCost cost = CheckFlatLandRoadStop(tile, flags, is_drive_through ? 5 << p1 : 1 << p1, build_over_road, rts);
if (cost.Failed()) return cost;
- uint roadbits_to_build = CountBits(rts) * 2 - num_roadbits;
- cost.AddCost(_price[PR_BUILD_ROAD] * roadbits_to_build);
Station *st = NULL;
CommandCost ret = FindJoiningStation(INVALID_STATION, station_to_join, HasBit(p2, 5), TileArea(tile, 1, 1), &st);