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(svn r5363) Revert 5312, 5288, 5248, 3992, 3249, 3228

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They were all aimed at fixing the terraform-into-tunnel problem, but introduced new sideeffects while doing so
This commit is contained in:
tron
2006-06-25 17:39:19 +00:00
parent 1423445050
commit f6b15f9fc4
4 changed files with 61 additions and 67 deletions
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83
clear_cmd.c
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@@ -87,25 +87,48 @@ static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile)
TerraformAddDirtyTile(ts, tile);
}
static int TerraformProc(TerraformerState *ts, TileIndex tile)
static int TerraformProc(TerraformerState *ts, TileIndex tile, int mode)
{
int r;
int32 ret;
assert(tile < MapSize());
if ((r = TerraformAllowTileProcess(ts, tile)) <= 0) return r;
if ((r=TerraformAllowTileProcess(ts, tile)) <= 0)
return r;
if (!IsTileType(tile, MP_RAILWAY)) {
int32 ret = DoCommand(tile, 0,0, ts->flags & ~DC_EXEC, CMD_LANDSCAPE_CLEAR);
if (IsTileType(tile, MP_RAILWAY)) {
static const TrackBits _railway_modes[] = { TRACK_BIT_LOWER, TRACK_BIT_LEFT, TRACK_BIT_UPPER, TRACK_BIT_RIGHT };
static const byte _railway_dangslopes[4] = {0xd, 0xe, 7, 0xb};
static const byte _railway_dangslopes2[4] = {0x2, 0x1, 0x8, 0x4};
if (CmdFailed(ret)) {
// Nothing could be built at the steep slope - this avoids a bug
// when you have a single diagonal track in one corner on a
// basement and then you raise/lower the other corner.
int tileh = GetTileSlope(tile, NULL) & 0xF;
if (tileh == _railway_dangslopes[mode] ||
tileh == _railway_dangslopes2[mode]) {
_terraform_err_tile = tile;
_error_message = STR_1008_MUST_REMOVE_RAILROAD_TRACK;
return -1;
}
ts->cost += ret;
// If we have a single diagonal track there, the other side of
// tile can be terraformed.
if (IsPlainRailTile(tile) && GetTrackBits(tile) == _railway_modes[mode]) {
return 0;
}
}
ret = DoCommand(tile, 0,0, ts->flags & ~DC_EXEC, CMD_LANDSCAPE_CLEAR);
if (ret == CMD_ERROR) {
_terraform_err_tile = tile;
return -1;
}
ts->cost += ret;
if (ts->tile_table_count >= 625) return -1;
ts->tile_table[ts->tile_table_count++] = tile;
@@ -132,10 +155,10 @@ static bool TerraformTileHeight(TerraformerState *ts, TileIndex tile, int height
nh = TerraformGetHeightOfTile(ts, tile);
if (nh < 0 || height == nh) return false;
if (TerraformProc(ts, tile) < 0) return false;
if (TerraformProc(ts, tile + TileDiffXY( 0, -1)) < 0) return false;
if (TerraformProc(ts, tile + TileDiffXY(-1, -1)) < 0) return false;
if (TerraformProc(ts, tile + TileDiffXY(-1, 0)) < 0) return false;
if (TerraformProc(ts, tile, 0) < 0) return false;
if (TerraformProc(ts, tile + TileDiffXY( 0, -1), 1) < 0) return false;
if (TerraformProc(ts, tile + TileDiffXY(-1, -1), 2) < 0) return false;
if (TerraformProc(ts, tile + TileDiffXY(-1, 0), 3) < 0) return false;
mod = ts->modheight;
count = ts->modheight_count;
@@ -237,42 +260,26 @@ int32 CmdTerraformLand(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
}
}
{ /* Check if tunnel or track would take damage */
if (direction == -1) {
/* Check if tunnel would take damage */
int count;
TileIndex *ti = ts.tile_table;
for (count = ts.tile_table_count; count != 0; count--, ti++) {
uint a, b, c, d, min;
Slope s;
uint z, t;
TileIndex tile = *ti;
_terraform_err_tile = tile;
z = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 0));
t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 0));
if (t <= z) z = t;
t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 1));
if (t <= z) z = t;
t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 1));
if (t <= z) z = t;
a = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 0));
b = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 0));
c = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 1));
d = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 1));
s = GetTileh(a, b, c, d, &min);
if (IsTileType(tile, MP_RAILWAY)) {
if (IsSteepSlope(s)) return_cmd_error(STR_1008_MUST_REMOVE_RAILROAD_TRACK);
if (IsPlainRailTile(tile)) {
/* If a piece of rail is on a foundation, prohibit any terraforming
* of that tile. We do need to check this with the original slope, not
* the would-be one. */
extern const TrackBits _valid_tileh_slopes[2][15];
TrackBits tb = GetTrackBits(tile);
if (GetRailFoundation(GetTileSlope(tile, NULL), tb) != 0) return_cmd_error(STR_1008_MUST_REMOVE_RAILROAD_TRACK);
if (tb & ~_valid_tileh_slopes[0][s]) return_cmd_error(STR_1008_MUST_REMOVE_RAILROAD_TRACK);
} else return_cmd_error(STR_5800_OBJECT_IN_THE_WAY);
if (IsTunnelInWay(tile, z * TILE_HEIGHT)) {
return_cmd_error(STR_1002_EXCAVATION_WOULD_DAMAGE);
}
if (direction == -1 && IsTunnelInWay(tile, min)) return_cmd_error(STR_1002_EXCAVATION_WOULD_DAMAGE);
_terraform_err_tile = 0;
}
}