From 5f943a4ba7a754dfd1136b232608b0a31e443ceb Mon Sep 17 00:00:00 2001 From: tron Date: Thu, 10 Aug 2006 14:44:32 +0000 Subject: (svn r5833) -Feature: Allow building of (certain) rails, roads and bridge ramps on steep sloped tiles --- road_cmd.c | 40 +++++++++++++++++++++++++++------------- 1 file changed, 27 insertions(+), 13 deletions(-) (limited to 'road_cmd.c') diff --git a/road_cmd.c b/road_cmd.c index 573b5ef6f..158ade66b 100644 --- a/road_cmd.c +++ b/road_cmd.c @@ -243,7 +243,15 @@ static uint32 CheckRoadSlope(Slope tileh, RoadBits* pieces, RoadBits existing) { RoadBits road_bits; - if (IsSteepSlope(tileh)) return CMD_ERROR; + if (IsSteepSlope(tileh)) { + if (existing == 0) { + // force full pieces. + *pieces |= (*pieces & 0xC) >> 2; + *pieces |= (*pieces & 0x3) << 2; + if (*pieces == ROAD_X || *pieces == ROAD_Y) return _price.terraform; + } + return CMD_ERROR; + } road_bits = *pieces | existing; // no special foundation @@ -354,11 +362,6 @@ int32 CmdBuildRoad(TileIndex tile, uint32 flags, uint32 p1, uint32 p2) } case MP_TUNNELBRIDGE: - /* check for flat land */ - if (IsSteepSlope(tileh)) { - return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION); - } - if (!IsBridge(tile) || !IsBridgeMiddle(tile)) goto do_clear; /* only allow roads pertendicular to bridge */ @@ -659,7 +662,10 @@ uint GetRoadFoundation(Slope tileh, RoadBits bits) uint i; // normal level sloped building - if ((~_valid_tileh_slopes_road[1][tileh] & bits) == 0) return tileh; + if (!IsSteepSlope(tileh) && + (~_valid_tileh_slopes_road[1][tileh] & bits) == 0) { + return tileh; + } // inclined sloped building switch (bits) { @@ -668,11 +674,15 @@ uint GetRoadFoundation(Slope tileh, RoadBits bits) default: return 0; } switch (tileh) { - case SLOPE_W: i += 0; break; - case SLOPE_S: i += 2; break; - case SLOPE_E: i += 4; break; - case SLOPE_N: i += 6; break; - default: return 0; + case SLOPE_W: + case SLOPE_STEEP_W: i += 0; break; + case SLOPE_S: + case SLOPE_STEEP_S: i += 2; break; + case SLOPE_E: + case SLOPE_STEEP_E: i += 4; break; + case SLOPE_N: + case SLOPE_STEEP_N: i += 6; break; + default: return 0; } return i + 15; } @@ -839,7 +849,11 @@ static uint GetSlopeZ_Road(TileIndex tile, uint x, uint y) uint f = GetRoadFoundation(tileh, GetRoadBits(tile)); if (f != 0) { - if (f < 15) return z + TILE_HEIGHT; // leveled foundation + if (IsSteepSlope(tileh)) { + z += TILE_HEIGHT; + } else if (f < 15) { + return z + TILE_HEIGHT; // leveled foundation + } tileh = _inclined_tileh[f - 15]; // inclined foundation } return z + GetPartialZ(x & 0xF, y & 0xF, tileh); -- cgit v1.2.3-54-g00ecf