diff --git a/road_cmd.c b/road_cmd.c --- a/road_cmd.c +++ b/road_cmd.c @@ -2,6 +2,7 @@ #include "stdafx.h" #include "openttd.h" +#include "road.h" #include "table/sprites.h" #include "table/strings.h" #include "functions.h" @@ -27,17 +28,15 @@ void RoadVehEnterDepot(Vehicle *v); static bool HasTileRoadAt(TileIndex tile, int i) { - byte b; + RoadBits b; switch (GetTileType(tile)) { case MP_STREET: - b = _m[tile].m5; - - switch (GB(b, 4, 4)) { - case 0: break; // normal road - case 1: b = (b & 8 ? 5 : 10); break; // level crossing - case 2: return (~b & 3) == i; // depot - default: return false; + switch (GetRoadType(tile)) { + case ROAD_NORMAL: b = GetRoadBits(tile); break; + case ROAD_CROSSING: b = (_m[tile].m5 & 8 ? ROAD_Y : ROAD_X); break; + case ROAD_DEPOT: return (~_m[tile].m5 & 3) == i; + default: return false; } break; @@ -50,7 +49,7 @@ static bool HasTileRoadAt(TileIndex tile // bail out, if not a bridge middle part with road underneath if ((_m[tile].m5 & 0xF8) != 0xE8) return false; // road direction perpendicular to bridge - b = (_m[tile].m5 & 0x01) ? 10 : 5; + b = (_m[tile].m5 & 0x01) ? ROAD_X : ROAD_Y; default: return false; @@ -137,12 +136,13 @@ int32 CmdRemoveRoad(int x, int y, uint32 /* true if the roadpiece was always removeable, * false if it was a center piece. Affects town ratings drop */ bool edge_road; - byte pieces = (byte)p1; + RoadBits pieces; SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION); /* Road pieces are max 4 bitset values (NE, NW, SE, SW) */ - if (pieces >> 4) return CMD_ERROR; + if (p1 >> 4) return CMD_ERROR; + pieces = p1; FindLandscapeHeight(&ti, x, y); tile = ti.tile; @@ -179,9 +179,9 @@ int32 CmdRemoveRoad(int x, int y, uint32 if (!EnsureNoVehicleZ(tile, TilePixelHeight(tile))) return CMD_ERROR; if ((ti.map5 & 0xE9) == 0xE8) { - if (pieces & 10) goto return_error; + if (pieces & ROAD_X) goto return_error; } else if ((ti.map5 & 0xE9) == 0xE9) { - if (pieces & 5) goto return_error; + if (pieces & ROAD_Y) goto return_error; } else { goto return_error; } @@ -201,11 +201,11 @@ int32 CmdRemoveRoad(int x, int y, uint32 // removal allowance depends on difficulty setting if (!CheckforTownRating(flags, t, ROAD_REMOVE)) return CMD_ERROR; - switch (GB(ti.map5, 4, 4)) { - case 0: { // normal road + switch (GetRoadType(ti.tile)) { + case ROAD_NORMAL: { byte c = pieces, t2; - if (ti.tileh != 0 && (ti.map5 == 5 || ti.map5 == 10)) { + if (ti.tileh != 0 && (ti.map5 == ROAD_Y || ti.map5 == ROAD_X)) { c |= (c & 0xC) >> 2; c |= (c & 0x3) << 2; } @@ -233,15 +233,15 @@ int32 CmdRemoveRoad(int x, int y, uint32 return cost; } - case 1: { // level crossing + case ROAD_CROSSING: { byte c; if (!(ti.map5 & 8)) { c = 2; - if (pieces & 5) goto return_error; + if (pieces & ROAD_Y) goto return_error; } else { c = 1; - if (pieces & 10) goto return_error; + if (pieces & ROAD_X) goto return_error; } cost = _price.remove_road * 2; @@ -258,7 +258,8 @@ int32 CmdRemoveRoad(int x, int y, uint32 return cost; } - default: // depot + default: + case ROAD_DEPOT: goto return_error; } @@ -269,14 +270,6 @@ return_error:; } -enum { - ROAD_NW = 1, // NW road track - ROAD_SW = 2, // SW road track - ROAD_SE = 4, // SE road track - ROAD_NE = 8, // NE road track - ROAD_ALL = (ROAD_NW | ROAD_SW | ROAD_SE | ROAD_NE) -}; - static const byte _valid_tileh_slopes_road[3][15] = { // set of normal ones { @@ -372,21 +365,22 @@ int32 CmdBuildRoad(int x, int y, uint32 switch (ti.type) { case MP_STREET: - switch (GB(ti.map5, 4, 4)) { - case 0: // normal road - if ((pieces & (byte)ti.map5) == pieces) { + switch (GetRoadType(ti.tile)) { + case ROAD_NORMAL: + if ((GetRoadBits(ti.tile) & pieces) == pieces) { return_cmd_error(STR_1007_ALREADY_BUILT); } existing = ti.map5; break; - case 1: // level crossing - if (pieces != (ti.map5 & 8 ? 5 : 10)) { + case ROAD_CROSSING: + if (pieces != (ti.map5 & 8 ? ROAD_Y : ROAD_X)) { // XXX is this correct? return_cmd_error(STR_1007_ALREADY_BUILT); } goto do_clear; - default: // depot + default: + case ROAD_DEPOT: goto do_clear; } break; @@ -403,10 +397,10 @@ int32 CmdBuildRoad(int x, int y, uint32 } if (ti.map5 == 2) { - if (pieces & 5) goto do_clear; + if (pieces & ROAD_Y) goto do_clear; m5 = 0x10; } else if (ti.map5 == 1) { - if (pieces & 10) goto do_clear; + if (pieces & ROAD_X) goto do_clear; m5 = 0x18; } else { goto do_clear; @@ -468,7 +462,7 @@ do_clear:; if (cost && (!_patches.build_on_slopes || _is_old_ai_player)) return CMD_ERROR; - if (ti.type != MP_STREET || (ti.map5 & 0xF0) != 0) { + if (ti.type != MP_STREET || GetRoadType(ti.tile) != ROAD_NORMAL) { cost += DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR); } else { // Don't put the pieces that already exist @@ -698,11 +692,9 @@ static int32 RemoveRoadDepot(TileIndex t static int32 ClearTile_Road(TileIndex tile, byte flags) { - byte m5 = _m[tile].m5; - - switch (GB(_m[tile].m5, 4, 4)) { - case 0: { // normal road - byte b = m5 & 0xF; + switch (GetRoadType(tile)) { + case ROAD_NORMAL: { + RoadBits b = GetRoadBits(tile); if (!((1 << b) & (M(1)|M(2)|M(4)|M(8))) && (!(flags & DC_AI_BUILDING) || !IsTileOwner(tile, OWNER_TOWN)) && @@ -712,14 +704,12 @@ static int32 ClearTile_Road(TileIndex ti return DoCommandByTile(tile, b, 0, flags, CMD_REMOVE_ROAD); } - case 1: { // level crossing + case ROAD_CROSSING: { int32 ret; - if (flags & DC_AUTO) { - return_cmd_error(STR_1801_MUST_REMOVE_ROAD_FIRST); - } + if (flags & DC_AUTO) return_cmd_error(STR_1801_MUST_REMOVE_ROAD_FIRST); - ret = DoCommandByTile(tile, (m5 & 8 ? 5 : 10), 0, flags, CMD_REMOVE_ROAD); + ret = DoCommandByTile(tile, (_m[tile].m5 & 8 ? ROAD_Y : ROAD_X), 0, flags, CMD_REMOVE_ROAD); if (CmdFailed(ret)) return CMD_ERROR; if (flags & DC_EXEC) { @@ -728,7 +718,8 @@ static int32 ClearTile_Road(TileIndex ti return ret; } - default: // depot + default: + case ROAD_DEPOT: if (flags & DC_AUTO) { return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED); } @@ -1040,7 +1031,7 @@ static void TileLoop_Road(TileIndex tile break; } - if (_m[tile].m5 & 0xE0) return; + if (GetRoadType(tile) == ROAD_DEPOT) return; if (GB(_m[tile].m4, 4, 3) < 6) { t = ClosestTownFromTile(tile, (uint)-1); @@ -1052,7 +1043,7 @@ static void TileLoop_Road(TileIndex tile // Show an animation to indicate road work if (t->road_build_months != 0 && !(DistanceManhattan(t->xy, tile) >= 8 && grp == 0) && - (_m[tile].m5 == 5 || _m[tile].m5 == 10)) { + (_m[tile].m5 == ROAD_Y || _m[tile].m5 == ROAD_X)) { if (GetTileSlope(tile, NULL) == 0 && EnsureNoVehicle(tile) && CHANCE16(1, 20)) { _m[tile].m4 |= (GB(_m[tile].m4, 4, 3) <= 2 ? 7 : 6) << 4; @@ -1106,7 +1097,7 @@ void ShowRoadDepotWindow(TileIndex tile) static void ClickTile_Road(TileIndex tile) { - if (GB(_m[tile].m5, 4, 4) == 2) ShowRoadDepotWindow(tile); + if (GetRoadType(tile) == ROAD_DEPOT) ShowRoadDepotWindow(tile); } static const byte _road_trackbits[16] = { @@ -1122,19 +1113,18 @@ static uint32 GetTileTrackStatus_Road(Ti case TRANSPORT_ROAD: switch (GB(_m[tile].m5, 4, 4)) { - case 0: // normal road - if (!_road_special_gettrackstatus && GB(_m[tile].m4, 4, 3) >= 6) { - return 0; - } - return _road_trackbits[GB(_m[tile].m5, 0, 4)] * 0x101; + case ROAD_NORMAL: + return !_road_special_gettrackstatus && GB(_m[tile].m4, 4, 3) >= 6 ? + 0 : _road_trackbits[GetRoadBits(tile)] * 0x101; - case 1: { // level crossing + case ROAD_CROSSING: { uint32 r = (_m[tile].m5 & 8 ? 0x202 : 0x101); if (_m[tile].m5 & 4) r *= 0x10001; return r; } - default: // depot + default: + case ROAD_DEPOT: break; } break; @@ -1145,9 +1135,6 @@ static uint32 GetTileTrackStatus_Road(Ti } static const StringID _road_tile_strings[] = { - STR_1818_ROAD_RAIL_LEVEL_CROSSING, - STR_1817_ROAD_VEHICLE_DEPOT, - STR_1814_ROAD, STR_1814_ROAD, STR_1814_ROAD, @@ -1160,10 +1147,12 @@ static const StringID _road_tile_strings static void GetTileDesc_Road(TileIndex tile, TileDesc *td) { - int i = GB(_m[tile].m5, 4, 4); - if (i == 0) i = GB(_m[tile].m4, 4, 3) + 3; - td->str = _road_tile_strings[i - 1]; td->owner = GetTileOwner(tile); + switch (GetRoadType(tile)) { + case ROAD_CROSSING: td->str = STR_1818_ROAD_RAIL_LEVEL_CROSSING; break; + case ROAD_DEPOT: td->str = STR_1817_ROAD_VEHICLE_DEPOT; break; + default: td->str = _road_tile_strings[GB(_m[tile].m4, 4, 3)]; break; + } } static const byte _roadveh_enter_depot_unk0[4] = { @@ -1172,8 +1161,8 @@ static const byte _roadveh_enter_depot_u static uint32 VehicleEnter_Road(Vehicle *v, TileIndex tile, int x, int y) { - switch (GB(_m[tile].m5, 4, 4)) { - case 1: // level crossing + switch (GetRoadType(tile)) { + case ROAD_CROSSING: if (v->type == VEH_Train && GB(_m[tile].m5, 2, 1) == 0) { /* train crossing a road */ SndPlayVehicleFx(SND_0E_LEVEL_CROSSING, v); @@ -1182,7 +1171,7 @@ static uint32 VehicleEnter_Road(Vehicle } break; - case 2: // depot + case ROAD_DEPOT: if (v->type == VEH_Road && v->u.road.frame == 11) { if (_roadveh_enter_depot_unk0[GB(_m[tile].m5, 0, 2)] == v->u.road.state) { RoadVehEnterDepot(v); @@ -1217,19 +1206,20 @@ static void ChangeTileOwner_Road(TileInd if (new_player != OWNER_SPECTATOR) { SetTileOwner(tile, new_player); } else { - switch (GB(_m[tile].m5, 4, 4)) { - case 0: // normal road + switch (GetRoadType(tile)) { + case ROAD_NORMAL: SetTileOwner(tile, OWNER_NONE); break; - case 1: // level crossing + case ROAD_CROSSING: _m[tile].m5 = (_m[tile].m5&8) ? 0x5 : 0xA; SetTileOwner(tile, _m[tile].m3); _m[tile].m3 = 0; _m[tile].m4 &= 0x80; break; - default: // depot + default: + case ROAD_DEPOT: DoCommandByTile(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR); break; }