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(svn r17558) -Feature [NewGRF]: callbacks for houses to disable drawing foundations and to disable slope changes, like industry tile callbacks 30 and 3C.

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rubidium
2009-09-16 19:10:50 +00:00
parent 24e9ee8ab4
commit 430ce19418
4 changed files with 46 additions and 3 deletions
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28
src/town_cmd.cpp
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@@ -257,6 +257,19 @@ static uint GetSlopeZ_Town(TileIndex tile, uint x, uint y)
/** Tile callback routine */
static Foundation GetFoundation_Town(TileIndex tile, Slope tileh)
{
HouseID hid = GetHouseType(tile);
/* For NewGRF house tiles we might not be drawing a foundation. We need to
* account for this, as other structures should
* draw the wall of the foundation in this case.
*/
if (hid >= NEW_HOUSE_OFFSET) {
const HouseSpec *hs = HouseSpec::Get(hid);
if (hs->spritegroup != NULL && HasBit(hs->callback_mask, CBM_HOUSE_DRAW_FOUNDATIONS)) {
uint32 callback_res = GetHouseCallback(CBID_HOUSE_DRAW_FOUNDATIONS, 0, 0, hid, Town::GetByTile(tile), tile);
if (callback_res == 0) return FOUNDATION_NONE;
}
}
return FlatteningFoundation(tileh);
}
@@ -2895,7 +2908,20 @@ static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, uint
/* Here we differ from TTDP by checking TILE_NOT_SLOPED */
if (((hs->building_flags & TILE_NOT_SLOPED) == 0) && !IsSteepSlope(tileh_new) &&
(GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
(GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) {
bool allow_terraform = true;
/* Call the autosloping callback per tile, not for the whole building at once. */
house = GetHouseType(tile);
hs = HouseSpec::Get(house);
if (HasBit(hs->callback_mask, CBM_HOUSE_AUTOSLOPE)) {
/* If the callback fails, allow autoslope. */
uint16 res = GetHouseCallback(CBID_HOUSE_AUTOSLOPE, 0, 0, house, Town::GetByTile(tile), tile);
if ((res != 0) && (res != CALLBACK_FAILED)) allow_terraform = false;
}
if (allow_terraform) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
}
}
return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);