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(svn r3885) Simplify DoConvertTunnelBridgeRail() a bit

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tron 2006-03-15 16:09:23 +00:00
parent a19cdf6040
commit 962852b732
1 changed files with 11 additions and 12 deletions
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23
tunnelbridge_cmd.c
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@ -800,7 +800,7 @@ int32 DoConvertTunnelBridgeRail(TileIndex tile, uint totype, bool exec)
}
return _price.build_rail >> 1;
} else if ((_m[tile].m5 & 0xC6) == 0x80) {
TileIndex starttile;
TileIndexDiff delta;
int32 cost;
uint z = TilePixelHeight(tile);
@ -809,7 +809,7 @@ int32 DoConvertTunnelBridgeRail(TileIndex tile, uint totype, bool exec)
if (!CheckTileOwnership(tile)) return CMD_ERROR;
// railway bridge
starttile = tile = FindEdgesOfBridge(tile, &endtile);
tile = FindEdgesOfBridge(tile, &endtile);
// Make sure there's no vehicle on the bridge
v = FindVehicleBetween(tile, endtile, z);
if (v != NULL) {
@ -817,25 +817,24 @@ int32 DoConvertTunnelBridgeRail(TileIndex tile, uint totype, bool exec)
return CMD_ERROR;
}
if (!EnsureNoVehicle(starttile) || !EnsureNoVehicle(endtile)) {
if (!EnsureNoVehicle(tile) || !EnsureNoVehicle(endtile)) {
_error_message = STR_8803_TRAIN_IN_THE_WAY;
return CMD_ERROR;
}
if (GB(_m[tile].m3, 0, 4) == totype) return CMD_ERROR;
cost = 0;
do {
SB(_m[tile].m3, 0, 4, totype);
SB(_m[endtile].m3, 0, 4, totype);
cost = 2 * (_price.build_rail >> 1);
delta = TileOffsByDir(GetBridgeRampDirection(tile));
for (tile += delta; tile != endtile; tile += delta) {
if (exec) {
if (tile == starttile || tile == endtile) {
SB(_m[tile].m3, 0, 4, totype);
} else {
SB(_m[tile].m3, 4, 4, totype);
}
SB(_m[tile].m3, 4, 4, totype);
MarkTileDirtyByTile(tile);
}
cost += _price.build_rail >> 1;
tile += GB(_m[tile].m5, 0, 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
} while (tile <= endtile);
}
return cost;
} else