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GRF: Use access mask when evaluating get nearby tile information variable

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pull/393/head
Jonathan G Rennison 2 years ago
parent 7207c9330c
commit 8eb86fa6c7
10 changed files with 57 additions and 36 deletions
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8
src/newgrf_airporttiles.cpp
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@ -106,12 +106,14 @@ StationGfx GetTranslatedAirportTileID(StationGfx gfx)
* @param grf_version8 True, if we are dealing with a new NewGRF which uses GRF version >= 8.
* @return a construction of bits obeying the newgrf format
*/
static uint32 GetNearbyAirportTileInformation(byte parameter, TileIndex tile, StationID index, bool grf_version8)
static uint32 GetNearbyAirportTileInformation(byte parameter, TileIndex tile, StationID index, bool grf_version8, uint32 mask)
{
if (parameter != 0) tile = GetNearbyTile(parameter, tile); // only perform if it is required
bool is_same_airport = (IsTileType(tile, MP_STATION) && IsAirport(tile) && GetStationIndex(tile) == index);
return GetNearbyTileInformation(tile, grf_version8) | (is_same_airport ? 1 : 0) << 8;
uint32 result = (is_same_airport ? 1 : 0) << 8;
if (mask & ~0x100) result |= GetNearbyTileInformation(tile, grf_version8, mask);
return result;
}
@ -178,7 +180,7 @@ static uint32 GetAirportTileIDAtOffset(TileIndex tile, const Station *st, uint32
case 0x44: return GetAnimationFrame(this->tile);
/* Land info of nearby tiles */
case 0x60: return GetNearbyAirportTileInformation(parameter, this->tile, this->st->index, this->ro.grffile->grf_version >= 8);
case 0x60: return GetNearbyAirportTileInformation(parameter, this->tile, this->st->index, this->ro.grffile->grf_version >= 8, extra->mask);
/* Animation stage of nearby tiles */
case 0x61: {

35
src/newgrf_commons.cpp
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@ -444,22 +444,33 @@ TileIndex GetNearbyTile(byte parameter, TileIndex tile, bool signed_offsets, Axi
* @param grf_version8 True, if we are dealing with a new NewGRF which uses GRF version >= 8.
* @return 0czzbbss: c = TileType; zz = TileZ; bb: 7-3 zero, 4-2 TerrainType, 1 water/shore, 0 zero; ss = TileSlope
*/
uint32 GetNearbyTileInformation(TileIndex tile, bool grf_version8)
uint32 GetNearbyTileInformation(TileIndex tile, bool grf_version8, uint32 mask)
{
TileType tile_type = GetTileType(tile);
uint32 result = 0;
TileType tile_type = MP_CLEAR;
if (mask & 0xFF000200) {
tile_type = GetTileType(tile);
/* Fake tile type for trees on shore */
if (IsTileType(tile, MP_TREES) && GetTreeGround(tile) == TREE_GROUND_SHORE) tile_type = MP_WATER;
/* Fake tile type for trees on shore */
if (IsTileType(tile, MP_TREES) && GetTreeGround(tile) == TREE_GROUND_SHORE) tile_type = MP_WATER;
/* Fake tile type for road waypoints */
if (IsRoadWaypointTile(tile)) tile_type = MP_ROAD;
/* Fake tile type for road waypoints */
if (IsRoadWaypointTile(tile)) tile_type = MP_ROAD;
int z;
Slope tileh = GetTilePixelSlope(tile, &z);
/* Return 0 if the tile is a land tile */
byte terrain_type = (HasTileWaterClass(tile) ? (GetWaterClass(tile) + 1) & 3 : 0) << 5 | GetTerrainType(tile) << 2 | (tile_type == MP_WATER ? 1 : 0) << 1;
if (grf_version8) z /= TILE_HEIGHT;
return tile_type << 24 | Clamp(z, 0, 0xFF) << 16 | terrain_type << 8 | tileh;
result |= tile_type << 24;
}
if (mask & 0xFF00) {
/* Return 0 if the tile is a land tile */
byte terrain_type = (HasTileWaterClass(tile) ? (GetWaterClass(tile) + 1) & 3 : 0) << 5 | GetTerrainType(tile) << 2 | (tile_type == MP_WATER ? 1 : 0) << 1;
result |= terrain_type << 8;
}
if (mask & 0xFF00FF) {
int z;
Slope tileh = GetTilePixelSlope(tile, &z);
if (grf_version8) z /= TILE_HEIGHT;
result |= Clamp(z, 0, 0xFF) << 16 | tileh;
}
return result;
}
/**

2
src/newgrf_commons.h
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@ -295,7 +295,7 @@ extern ObjectOverrideManager _object_mngr;
uint32 GetTerrainType(TileIndex tile, TileContext context = TCX_NORMAL);
TileIndex GetNearbyTile(byte parameter, TileIndex tile, bool signed_offsets = true, Axis axis = INVALID_AXIS);
uint32 GetNearbyTileInformation(TileIndex tile, bool grf_version8);
uint32 GetNearbyTileInformation(TileIndex tile, bool grf_version8, uint32 mask);
uint32 GetCompanyInfo(CompanyID owner, const struct Livery *l = nullptr);
CommandCost GetErrorMessageFromLocationCallbackResult(uint16 cb_res, const GRFFile *grffile, StringID default_error);

6
src/newgrf_house.cpp
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@ -202,10 +202,10 @@ static uint32 GetNumHouses(HouseID house_id, const Town *town)
* @param grf_version8 True, if we are dealing with a new NewGRF which uses GRF version >= 8.
* @return a construction of bits obeying the newgrf format
*/
static uint32 GetNearbyTileInformation(byte parameter, TileIndex tile, bool grf_version8)
static uint32 GetNearbyTileInformation(byte parameter, TileIndex tile, bool grf_version8, uint32 mask)
{
tile = GetNearbyTile(parameter, tile);
return GetNearbyTileInformation(tile, grf_version8);
return GetNearbyTileInformation(tile, grf_version8, mask);
}
/** Structure with user-data for SearchNearbyHouseXXX - functions */
@ -362,7 +362,7 @@ static uint32 GetDistanceFromNearbyHouse(uint8 parameter, TileIndex tile, HouseI
}
/* Land info for nearby tiles. */
case 0x62: return GetNearbyTileInformation(parameter, this->tile, this->ro.grffile->grf_version >= 8);
case 0x62: return GetNearbyTileInformation(parameter, this->tile, this->ro.grffile->grf_version >= 8, extra->mask);
/* Current animation frame of nearby house tiles */
case 0x63: {

2
src/newgrf_industries.cpp
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@ -264,7 +264,7 @@ static uint32 GetCountAndDistanceOfClosestInstance(byte param_setID, byte layout
/* Land info of nearby tiles */
case 0x62:
if (this->tile == INVALID_TILE) break;
return GetNearbyIndustryTileInformation(parameter, this->tile, INVALID_INDUSTRY, false, this->ro.grffile->grf_version >= 8);
return GetNearbyIndustryTileInformation(parameter, this->tile, INVALID_INDUSTRY, false, this->ro.grffile->grf_version >= 8, extra->mask);
/* Animation stage of nearby tiles */
case 0x63: {

2
src/newgrf_industries.h
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@ -97,6 +97,6 @@ bool IndustryTemporarilyRefusesCargo(Industry *ind, CargoID cargo_type);
IndustryType MapNewGRFIndustryType(IndustryType grf_type, uint32 grf_id);
/* in newgrf_industrytiles.cpp*/
uint32 GetNearbyIndustryTileInformation(byte parameter, TileIndex tile, IndustryID index, bool signed_offsets, bool grf_version8);
uint32 GetNearbyIndustryTileInformation(byte parameter, TileIndex tile, IndustryID index, bool signed_offsets, bool grf_version8, uint32 mask);
#endif /* NEWGRF_INDUSTRIES_H */

8
src/newgrf_industrytiles.cpp
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@ -31,12 +31,14 @@
* @param grf_version8 True, if we are dealing with a new NewGRF which uses GRF version >= 8.
* @return a construction of bits obeying the newgrf format
*/
uint32 GetNearbyIndustryTileInformation(byte parameter, TileIndex tile, IndustryID index, bool signed_offsets, bool grf_version8)
uint32 GetNearbyIndustryTileInformation(byte parameter, TileIndex tile, IndustryID index, bool signed_offsets, bool grf_version8, uint32 mask)
{
if (parameter != 0) tile = GetNearbyTile(parameter, tile, signed_offsets); // only perform if it is required
bool is_same_industry = (IsTileType(tile, MP_INDUSTRY) && GetIndustryIndex(tile) == index);
return GetNearbyTileInformation(tile, grf_version8) | (is_same_industry ? 1 : 0) << 8;
uint32 result = (is_same_industry ? 1 : 0) << 8;
if (mask & ~0x100) result |= GetNearbyTileInformation(tile, grf_version8, mask);
return result;
}
/**
@ -78,7 +80,7 @@ uint32 GetRelativePosition(TileIndex tile, TileIndex ind_tile)
/* Land info of nearby tiles */
case 0x60: return GetNearbyIndustryTileInformation(parameter, this->tile,
this->industry == nullptr ? (IndustryID)INVALID_INDUSTRY : this->industry->index, true, this->ro.grffile->grf_version >= 8);
this->industry == nullptr ? (IndustryID)INVALID_INDUSTRY : this->industry->index, true, this->ro.grffile->grf_version >= 8, extra->mask);
/* Animation stage of nearby tiles */
case 0x61: {

8
src/newgrf_object.cpp
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@ -170,12 +170,14 @@ static uint32 GetObjectIDAtOffset(TileIndex tile, uint32 cur_grfid)
* @param grf_version8 True, if we are dealing with a new NewGRF which uses GRF version >= 8.
* @return a construction of bits obeying the newgrf format
*/
static uint32 GetNearbyObjectTileInformation(byte parameter, TileIndex tile, ObjectID index, bool grf_version8)
static uint32 GetNearbyObjectTileInformation(byte parameter, TileIndex tile, ObjectID index, bool grf_version8, uint32 mask)
{
if (parameter != 0) tile = GetNearbyTile(parameter, tile); // only perform if it is required
bool is_same_object = (IsTileType(tile, MP_OBJECT) && GetObjectIndex(tile) == index);
return GetNearbyTileInformation(tile, grf_version8) | (is_same_object ? 1 : 0) << 8;
uint32 result = (is_same_object ? 1 : 0) << 8;
if (mask & ~0x100) result |= GetNearbyTileInformation(tile, grf_version8, mask);
return result;
}
/**
@ -330,7 +332,7 @@ static uint32 GetCountAndDistanceOfClosestInstance(byte local_id, uint32 grfid,
}
/* Land info of nearby tiles */
case 0x62: return GetNearbyObjectTileInformation(parameter, this->tile, this->obj == nullptr ? INVALID_OBJECT : this->obj->index, this->ro.grffile->grf_version >= 8);
case 0x62: return GetNearbyObjectTileInformation(parameter, this->tile, this->obj == nullptr ? INVALID_OBJECT : this->obj->index, this->ro.grffile->grf_version >= 8, extra->mask);
/* Animation counter of nearby tile */
case 0x63: {

2
src/newgrf_roadstop.cpp
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@ -146,7 +146,7 @@ uint32 RoadStopScopeResolver::GetVariable(uint16 variable, uint32 parameter, Get
if (this->tile == INVALID_TILE) return 0;
TileIndex tile = this->tile;
if (parameter != 0) tile = GetNearbyTile(parameter, tile); // only perform if it is required
return GetNearbyTileInformation(tile, this->ro.grffile->grf_version >= 8);
return GetNearbyTileInformation(tile, this->ro.grffile->grf_version >= 8, extra->mask);
}
/* Road stop info of nearby tiles */

20
src/newgrf_station.cpp
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@ -286,10 +286,12 @@ TownScopeResolver *StationResolverObject::GetTown()
TileIndex tile = this->tile;
if (parameter != 0) tile = GetNearbyTile(parameter, tile, true, this->axis); // only perform if it is required
Slope tileh = GetTileSlope(tile);
bool swap = (this->axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));
return GetNearbyTileInformation(tile, this->ro.grffile->grf_version >= 8) ^ (swap ? SLOPE_EW : 0);
uint32 result = GetNearbyTileInformation(tile, this->ro.grffile->grf_version >= 8, extra->mask);
if (extra->mask & SLOPE_EW) {
Slope tileh = GetTileSlope(tile);
if (this->axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E)) result ^= SLOPE_EW;
}
return result;
}
break;
@ -345,10 +347,12 @@ TownScopeResolver *StationResolverObject::GetTown()
TileIndex tile = this->tile;
if (parameter != 0) tile = GetNearbyTile(parameter, tile); // only perform if it is required
Slope tileh = GetTileSlope(tile);
bool swap = (axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));
return GetNearbyTileInformation(tile, this->ro.grffile->grf_version >= 8) ^ (swap ? SLOPE_EW : 0);
uint32 result = GetNearbyTileInformation(tile, this->ro.grffile->grf_version >= 8, extra->mask);
if (extra->mask & SLOPE_EW) {
Slope tileh = GetTileSlope(tile);
if (axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E)) result ^= SLOPE_EW;
}
return result;
}
case 0x68: { // Station info of nearby tiles

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