--- a/depot.h Wed Oct 05 04:00:39 2005 +0000
+++ b/depot.h Wed Oct 05 07:20:26 2005 +0000
@@ -104,10 +104,10 @@
case TRANSPORT_RAIL:
case TRANSPORT_ROAD:
/* Rail and road store a diagonal direction in bits 0 and 1 */
- return (DiagDirection)(_m[tile].m5 & 3);
+ return (DiagDirection)GB(_m[tile].m5, 0, 2);
case TRANSPORT_WATER:
/* Water is stubborn, it stores the directions in a different order. */
- switch (_m[tile].m5 & 3) {
+ switch (GB(_m[tile].m5, 0, 2)) {
case 0: return DIAGDIR_NE;
case 1: return DIAGDIR_SW;
case 2: return DIAGDIR_NW;
--- a/industry_cmd.c Wed Oct 05 04:00:39 2005 +0000
+++ b/industry_cmd.c Wed Oct 05 07:20:26 2005 +0000
@@ -351,7 +351,7 @@
ormod = (ind->color_map+0x307) << PALETTE_SPRITE_START;
/* Retrieve pointer to the draw industry tile struct */
- dits = &_industry_draw_tile_data[(ti->map5 << 2) | (_m[ti->tile].m1 & 3)];
+ dits = &_industry_draw_tile_data[(ti->map5 << 2) | GB(_m[ti->tile].m1, 0, 2)];
image = dits->sprite_1;
if (image & PALETTE_MODIFIER_COLOR && (image & PALETTE_SPRITE_MASK) == 0)
--- a/macros.h Wed Oct 05 04:00:39 2005 +0000
+++ b/macros.h Wed Oct 05 07:20:26 2005 +0000
@@ -145,11 +145,11 @@
#endif
/// Fetch n bits starting at bit s from x
-#define GB(x, s, n) (((x) >> (s)) & ((1 << (n)) - 1))
+#define GB(x, s, n) (((x) >> (s)) & ((1U << (n)) - 1))
/// Set n bits starting at bit s in x to d
-#define SB(x, s, n, d) ((x) = ((x) & ~(((1 << (n)) - 1) << (s))) | ((d) << (s)))
+#define SB(x, s, n, d) ((x) = ((x) & ~(((1U << (n)) - 1) << (s))) | ((d) << (s)))
/// Add i to the n bits starting at bit s in x
-#define AB(x, s, n, i) ((x) = ((x) & ~(((1 << (n)) - 1) << (s))) | (((x) + ((i) << (s))) & (((1 << (n)) - 1) << (s))))
+#define AB(x, s, n, i) ((x) = ((x) & ~(((1U << (n)) - 1) << (s))) | (((x) + ((i) << (s))) & (((1U << (n)) - 1) << (s))))
/**
* ROtate x Left/Right by n (must be >= 0)
--- a/npf.c Wed Oct 05 04:00:39 2005 +0000
+++ b/npf.c Wed Oct 05 07:20:26 2005 +0000
@@ -60,8 +60,10 @@
uint32 ts;
/* Can always go into a tunnel */
- if (IsTileType(tile, MP_TUNNELBRIDGE) && (_m[tile].m5 & 0xF0)==0 && (_m[tile].m5 & 3) == exitdir)
+ if (IsTileType(tile, MP_TUNNELBRIDGE) && GB(_m[tile].m5, 4, 4) == 0 &&
+ GB(_m[tile].m5, 0, 2) == exitdir) {
return false;
+ }
/* Cannot go through the back of a depot */
if (IsTileDepotType(tile, TRANSPORT_RAIL) && (exitdir != GetDepotDirection(tile, TRANSPORT_RAIL)))
@@ -88,8 +90,11 @@
return true;
/* Prevent us from falling off a slope into a tunnel exit */
- if (IsTileType(dst_tile, MP_TUNNELBRIDGE) && (_m[dst_tile].m5 & 0xF0)==0 && (DiagDirection)(_m[dst_tile].m5 & 3) == ReverseDiagdir(exitdir))
- return true;
+ if (IsTileType(dst_tile, MP_TUNNELBRIDGE) &&
+ GB(_m[dst_tile].m5, 4, 4) == 0 &&
+ (DiagDirection)GB(_m[dst_tile].m5, 0, 2) == ReverseDiagdir(exitdir)) {
+ return true;
+ }
/* Check for oneway signal against us */
if (IsTileType(dst_tile, MP_RAILWAY) && GetRailTileType(dst_tile) == RAIL_TYPE_SIGNALS) {
@@ -312,7 +317,7 @@
{
DiagDirection exitdir = TrackdirToExitdir((Trackdir)current->direction);
TileIndex tile = current->tile;
- if ( (DiagDirection)(_m[tile].m5 & 3) == ReverseDiagdir(exitdir)) {
+ if ((DiagDirection)GB(_m[tile].m5, 0, 2) == ReverseDiagdir(exitdir)) {
/* We just popped out if this tunnel, since were
* facing the tunnel exit */
FindLengthOfTunnelResult flotr;
@@ -364,13 +369,13 @@
/* DEBUG: mark visited tiles by mowing the grass under them
* ;-) */
if (!IsTileDepotType(tile, TRANSPORT_RAIL)) {
- _m[tile].m2 &= ~15; /* Clear bits 0-3 */
+ SB(_m[tile].m2, 0, 4, 0);
MarkTileDirtyByTile(tile);
}
break;
case MP_STREET:
if (!IsTileDepotType(tile, TRANSPORT_ROAD)) {
- _m[tile].m4 &= ~0x70; /* Clear bits 4-6 */
+ SB(_m[tile].m2, 4, 3, 0);
MarkTileDirtyByTile(tile);
}
break;
@@ -408,7 +413,7 @@
/* Determine base length */
switch (GetTileType(tile)) {
case MP_TUNNELBRIDGE:
- if ((_m[tile].m5 & 0xF0)==0) {
+ if (GB(_m[tile].m5, 4, 4) == 0) {
cost = NPFTunnelCost(current);
break;
}
@@ -452,7 +457,7 @@
/* Determine base length */
switch (GetTileType(tile)) {
case MP_TUNNELBRIDGE:
- if ((_m[tile].m5 & 0xF0)==0) {
+ if (GB(_m[tile].m5, 4, 4) == 0) {
cost = NPFTunnelCost(current);
break;
}
@@ -659,10 +664,10 @@
* intensive owner check, instead we will just assume that if the vehicle
* managed to get on the bridge, it is probably allowed to :-)
*/
- if ((_m[tile].m5 & 0xC6) == 0xC0 && (unsigned)(_m[tile].m5 & 0x1) == (enterdir & 0x1)) {
+ if ((_m[tile].m5 & 0xC6) == 0xC0 && GB(_m[tile].m5, 0, 1) == (enterdir & 0x1)) {
/* on the middle part of a railway bridge: find bridge ending */
while (IsTileType(tile, MP_TUNNELBRIDGE) && !((_m[tile].m5 & 0xC6) == 0x80)) {
- tile += TileOffsByDir(_m[tile].m5 & 0x1);
+ tile += TileOffsByDir(GB(_m[tile].m5, 0, 1));
}
}
/* if we were on a railway middle part, we are now at a railway bridge ending */
@@ -670,7 +675,7 @@
if (
(_m[tile].m5 & 0xFC) == 0 /* railway tunnel */
|| (_m[tile].m5 & 0xC6) == 0x80 /* railway bridge ending */
- || ((_m[tile].m5 & 0xF8) == 0xE0 && ((unsigned)_m[tile].m5 & 0x1) != (enterdir & 0x1)) /* railway under bridge */
+ || ((_m[tile].m5 & 0xF8) == 0xE0 && GB(_m[tile].m5, 0, 1) != (enterdir & 0x1)) /* railway under bridge */
)
return IsTileOwner(tile, owner);
break;
@@ -704,7 +709,8 @@
aystar->EndNodeCheck(aystar, current);
/* Find dest tile */
- if (IsTileType(src_tile, MP_TUNNELBRIDGE) && (_m[src_tile].m5 & 0xF0)==0 && (DiagDirection)(_m[src_tile].m5 & 3) == src_exitdir) {
+ if (IsTileType(src_tile, MP_TUNNELBRIDGE) && GB(_m[src_tile].m5, 4, 4) == 0 &&
+ (DiagDirection)GB(_m[src_tile].m5, 0, 2) == src_exitdir) {
/* This is a tunnel. We know this tunnel is our type,
* otherwise we wouldn't have got here. It is also facing us,
* so we should skip it's body */
@@ -749,8 +755,10 @@
/* I can't enter a tunnel entry/exit tile from a tile above the tunnel. Note
* that I can enter the tunnel from a tile below the tunnel entrance. This
* solves the problem of vehicles wanting to drive off a tunnel entrance */
- if (IsTileType(dst_tile, MP_TUNNELBRIDGE) && (_m[dst_tile].m5 & 0xF0) == 0 && GetTileZ(dst_tile) < GetTileZ(src_tile))
+ if (IsTileType(dst_tile, MP_TUNNELBRIDGE) && GB(_m[dst_tile].m5, 4, 4) == 0 &&
+ GetTileZ(dst_tile) < GetTileZ(src_tile)) {
return;
+ }
/* check correct rail type (mono, maglev, etc) */
if (type == TRANSPORT_RAIL) {
--- a/pathfind.c Wed Oct 05 04:00:39 2005 +0000
+++ b/pathfind.c Wed Oct 05 07:20:26 2005 +0000
@@ -209,7 +209,7 @@
/* Returns the end tile and the length of a tunnel. The length does not
* include the starting tile (entry), it does include the end tile (exit).
*/
-FindLengthOfTunnelResult FindLengthOfTunnel(TileIndex tile, int direction)
+FindLengthOfTunnelResult FindLengthOfTunnel(TileIndex tile, uint direction)
{
FindLengthOfTunnelResult flotr;
int x,y;
@@ -231,11 +231,12 @@
tile = TileVirtXY(x, y);
if (IsTileType(tile, MP_TUNNELBRIDGE) &&
- (_m[tile].m5 & 0xF0) == 0 && // tunnel entrance/exit
- //((_m[tile].m5>>2)&3) == type && // rail/road-tunnel <-- This is not necesary to check, right?
- ((_m[tile].m5 & 3)^2) == direction && // entrance towards: 0 = NE, 1 = SE, 2 = SW, 3 = NW
- GetSlopeZ(x+8, y+8) == z)
- break;
+ GB(_m[tile].m5, 4, 4) == 0 && // tunnel entrance/exit
+ // GB(_m[tile].m5, 2, 2) == type && // rail/road-tunnel <-- This is not necesary to check, right?
+ (GB(_m[tile].m5, 0, 2) ^ 2) == direction && // entrance towards: 0 = NE, 1 = SE, 2 = SW, 3 = NW
+ GetSlopeZ(x + 8, y + 8) == z) {
+ break;
+ }
}
flotr.tile = tile;
@@ -274,16 +275,18 @@
48,56,56,58,56,60,60,62,
};
-static void TPFMode1(TrackPathFinder *tpf, TileIndex tile, int direction)
+static void TPFMode1(TrackPathFinder *tpf, TileIndex tile, uint direction)
{
uint bits;
int i;
RememberData rd;
TileIndex tile_org = tile;
- if (IsTileType(tile, MP_TUNNELBRIDGE) && (_m[tile].m5 & 0xF0) == 0) {
- if ((_m[tile].m5 & 3) != direction || ((_m[tile].m5>>2)&3) != tpf->tracktype)
+ if (IsTileType(tile, MP_TUNNELBRIDGE) && GB(_m[tile].m5, 4, 4) == 0) {
+ if (GB(_m[tile].m5, 0, 2) != direction ||
+ GB(_m[tile].m5, 2, 2) != tpf->tracktype) {
return;
+ }
tile = SkipToEndOfTunnel(tpf, tile, direction);
}
tile += TileOffsByDir(direction);
@@ -704,11 +707,11 @@
// If the tile is the entry tile of a tunnel, and we're not going out of the tunnel,
// need to find the exit of the tunnel.
if (IsTileType(tile, MP_TUNNELBRIDGE)) {
- if ((_m[tile].m5 & 0xF0) == 0 &&
- (uint)(_m[tile].m5 & 3) != (direction ^ 2)) {
+ if (GB(_m[tile].m5, 4, 4) == 0 &&
+ GB(_m[tile].m5, 0, 2) != (direction ^ 2)) {
/* This is a tunnel tile */
/* We are not just driving out of the tunnel */
- if ( (uint)(_m[tile].m5 & 3) != direction || GB(_m[tile].m5, 2, 2) != tpf->tracktype)
+ if (GB(_m[tile].m5, 0, 2) != direction || GB(_m[tile].m5, 2, 2) != tpf->tracktype)
/* We are not driving into the tunnel, or it
* is an invalid tunnel */
continue;
@@ -761,7 +764,7 @@
// The tile has no reachable tracks, or
// does the tile contain more than one track?
- if (bits == 0 || KILL_FIRST_BIT(_m[tile].m5 & 0x3F) != 0)
+ if (bits == 0 || KILL_FIRST_BIT(GB(_m[tile].m5, 0, 6)) != 0)
break;
// If we reach here, the tile has exactly one track, and this
--- a/pathfind.h Wed Oct 05 04:00:39 2005 +0000
+++ b/pathfind.h Wed Oct 05 07:20:26 2005 +0000
@@ -64,7 +64,7 @@
TileIndex tile;
int length;
} FindLengthOfTunnelResult;
-FindLengthOfTunnelResult FindLengthOfTunnel(TileIndex tile, int direction);
+FindLengthOfTunnelResult FindLengthOfTunnel(TileIndex tile, uint direction);
void NewTrainPathfind(TileIndex tile, TileIndex dest, byte direction, NTPEnumProc *enum_proc, void *data);
--- a/pbs.c Wed Oct 05 04:00:39 2005 +0000
+++ b/pbs.c Wed Oct 05 07:20:26 2005 +0000
@@ -57,15 +57,14 @@
SETBIT(_m[tile].m3, 6);
} else {
// normal rail track
- byte encrt = (_m[tile].m4 & 0xF0) >> 4; // get current encoded info (see comments at top of file)
+ byte encrt = GB(_m[tile].m4, 4, 4); // get current encoded info (see comments at top of file)
if (encrt == 0) // nothing reserved before
encrt = track + 1;
else if (encrt == (track^1) + 1) // opposite track reserved before
encrt |= 8;
- _m[tile].m4 &= ~0xF0;
- _m[tile].m4 |= encrt << 4;
+ SB(_m[tile].m4, 4, 4, encrt);
}
break;
case MP_TUNNELBRIDGE:
@@ -99,12 +98,12 @@
return HASBIT(_m[tile].m5, 0) ? 2 : 1;
} else {
// normal track
- byte res = encrt_to_reserved[(_m[tile].m4 & 0xF0) >> 4];
+ byte res = encrt_to_reserved[GB(_m[tile].m4, 4, 4)];
assert(res != 0xFF);
return res;
}
case MP_TUNNELBRIDGE:
- return (_m[tile].m4 & 3);
+ return GB(_m[tile].m4, 0, 2);
case MP_STATION:
// check if its reserved
if (!HASBIT(_m[tile].m3, 6)) return 0;
@@ -131,12 +130,12 @@
return HASBIT(_m[tile].m3, 6) ? TRACKDIR_BIT_MASK : 0;
} else {
// normal track
- uint16 res = encrt_to_unavail[(_m[tile].m4 & 0xF0) >> 4];
+ uint16 res = encrt_to_unavail[GB(_m[tile].m4, 4, 4)];
assert(res != 0xFFFF);
return res;
}
case MP_TUNNELBRIDGE:
- return (_m[tile].m4 & 3) | ((_m[tile].m4 & 3) << 8);
+ return GB(_m[tile].m4, 0, 2) | (GB(_m[tile].m4, 0, 2) << 8);
case MP_STATION:
return HASBIT(_m[tile].m3, 6) ? TRACKDIR_BIT_MASK : 0;
case MP_STREET:
@@ -159,7 +158,7 @@
CLRBIT(_m[tile].m3, 6);
} else {
// normal rail track
- byte encrt = (_m[tile].m4 & 0xF0) >> 4;
+ byte encrt = GB(_m[tile].m4, 4, 4);
if (encrt == track + 1)
encrt = 0;
@@ -168,8 +167,7 @@
else if (encrt == (track^1) + 1 + 8)
encrt &= 7;
- _m[tile].m4 &= ~0xF0;
- _m[tile].m4 |= encrt << 4;
+ SB(_m[tile].m4, 4, 4, encrt);
}
break;
case MP_TUNNELBRIDGE:
@@ -203,7 +201,9 @@
if (tile == end_tile && TrackdirToTrack(trackdir) == TrackdirToTrack(end_trackdir))
return;
- if (IsTileType(tile, MP_TUNNELBRIDGE) && (_m[tile].m5 & 0xF0)==0 && (unsigned)(_m[tile].m5 & 3) == TrackdirToExitdir(trackdir)) {
+ if (IsTileType(tile, MP_TUNNELBRIDGE) &&
+ GB(_m[tile].m5, 4, 4) == 0 &&
+ GB(_m[tile].m5, 0, 2) == TrackdirToExitdir(trackdir)) {
// this is a tunnel
flotr = FindLengthOfTunnel(tile, TrackdirToExitdir(trackdir));
--- a/rail_cmd.c Wed Oct 05 04:00:39 2005 +0000
+++ b/rail_cmd.c Wed Oct 05 07:20:26 2005 +0000
@@ -300,8 +300,7 @@
if (flags & DC_EXEC) {
SetTileOwner(tile, _current_player);
- _m[tile].m3 &= ~0x0F;
- _m[tile].m3 |= p1;
+ SB(_m[tile].m3, 0, 4, p1);
_m[tile].m5 = (m5 & 0xC7) | 0x20; // railroad under bridge
}
break;
@@ -322,7 +321,7 @@
}
if (m5 & RAIL_TYPE_SPECIAL ||
!IsTileOwner(tile, _current_player) ||
- (_m[tile].m3 & 0xFU) != p1) {
+ GB(_m[tile].m3, 0, 4) != p1) {
// Get detailed error message
return DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
}
@@ -453,11 +452,7 @@
_m[tile].m5 = _m[tile].m5 & 0xC7;
break;
case MP_STREET:
- if (!(_m[tile].m5 & 0xF0))
- return CMD_ERROR;
-
- if (_m[tile].m5 & 0xE0)
- return CMD_ERROR;
+ if (!IsLevelCrossing(tile)) return CMD_ERROR;
/* This is a crossing, let's check if the direction is correct */
if (_m[tile].m5 & 8) {
@@ -793,8 +788,7 @@
if (pre_signal) {
// cycle between normal -> pre -> exit -> combo -> pbs ->...
byte type = ((GetSignalType(tile, track) + 1) % 5);
- _m[tile].m4 &= ~0x07;
- _m[tile].m4 |= type ;
+ SB(_m[tile].m4, 0, 3, type);
} else {
// cycle between two-way -> one-way -> one-way -> ...
/* TODO: Rewrite switch into something more general */
@@ -961,9 +955,9 @@
_m[tile].m3 &= ~SignalOnTrack(track);
/* removed last signal from tile? */
- if ((_m[tile].m3 & 0xF0) == 0) {
- _m[tile].m5 &= ~RAIL_TYPE_SIGNALS;
- _m[tile].m2 &= ~0xF0;
+ if (GB(_m[tile].m3, 4, 4) == 0) {
+ SB(_m[tile].m2, 4, 4, 0);
+ SB(_m[tile].m5, 6, 2, RAIL_TYPE_NORMAL >> 6); // XXX >> because the constant is meant for direct application, not use with SB
CLRBIT(_m[tile].m4, 3); // remove any possible semaphores
}
@@ -997,7 +991,7 @@
// change type.
if (exec) {
- _m[tile].m3 = (_m[tile].m3 & 0xF0) + totype;
+ SB(_m[tile].m3, 4, 4, totype);
MarkTileDirtyByTile(tile);
}
@@ -1757,10 +1751,10 @@
* is some kind of invisible black hole, and there is some special magic going
* on in there. This 'workaround' can be removed once the maprewrite is done.
*/
- if (GetTileType(tile)==MP_TUNNELBRIDGE && ((_m[tile].m5 & 0xF0)==0)) {
+ if (GetTileType(tile) == MP_TUNNELBRIDGE && GB(_m[tile].m5, 4, 4) == 0) {
// It is a tunnel we're checking, we need to do some special stuff
// because VehicleFromPos will not find the vihicle otherwise
- byte direction = _m[tile].m5 & 3;
+ byte direction = GB(_m[tile].m5, 0, 2);
FindLengthOfTunnelResult flotr;
flotr = FindLengthOfTunnel(tile, direction);
dest.track = 1 << (direction & 1); // get the trackbit the vehicle would have if it has not entered the tunnel yet (ie is still visible)
@@ -1845,8 +1839,7 @@
if (_patches.auto_pbs_placement && !(ssd->stop) && (ssd->has_pbssignal == 0xE) && !ssd->has_presignal && (ssd->presignal_exits == 0)) // 0xE means at least 2 pbs signals, and at least 1 entry and 1 exit, see comments ssd->has_pbssignal
for(i=0; i!=ssd->pbs_cur; i++) {
TileIndex tile = ssd->pbs_tile[i];
- _m[tile].m4 &= ~0x07;
- _m[tile].m4 |= 0x04;
+ SB(_m[tile].m4, 0, 3, SIGTYPE_PBS);
MarkTileDirtyByTile(tile);
};
@@ -2006,7 +1999,7 @@
uint16 m2;
byte owner;
- m2 = _m[tile].m2 & 0xF;
+ m2 = GB(_m[tile].m2, 0, 4);
/* special code for alps landscape */
if (_opt.landscape == LT_HILLY) {
@@ -2158,7 +2151,7 @@
STR_NULL, STR_NULL
};
- td->str = signal_type[_m[tile].m4 & 0x7];
+ td->str = signal_type[GB(_m[tile].m4, 0, 3)];
break;
}
--- a/road_cmd.c Wed Oct 05 04:00:39 2005 +0000
+++ b/road_cmd.c Wed Oct 05 07:20:26 2005 +0000
@@ -231,11 +231,11 @@
ChangeTownRating(t, -road_remove_cost[(byte)edge_road], RATING_ROAD_MINIMUM);
_m[tile].m5 ^= c;
- if ((_m[tile].m5&0xF) == 0)
+ if (GB(_m[tile].m5, 0, 4) == 0) {
DoClearSquare(tile);
- else
+ } else {
MarkTileDirtyByTile(tile);
-
+ }
}
return cost;
} else if ((ti.map5 & 0xE0) == 0) { // railroad crossing
@@ -499,11 +499,11 @@
if (!CheckTileOwnership(tile) || !EnsureNoVehicle(tile)) return CMD_ERROR;
// tile is already of requested type?
- if ((_m[tile].m4 & 0xFU) == totype) return CMD_ERROR;
+ if (GB(_m[tile].m4, 0, 4) == totype) return CMD_ERROR;
if (exec) {
// change type.
- _m[tile].m4 = (_m[tile].m4 & 0xF0) + totype;
+ SB(_m[tile].m4, 0, 4, totype);
MarkTileDirtyByTile(tile);
}
@@ -866,7 +866,7 @@
if (m2 > 1) image += 4;
}
- DrawGroundSprite(image + (_m[ti->tile].m4 & 0xF) * 12);
+ DrawGroundSprite(image + GB(_m[ti->tile].m4, 0, 4) * 12);
if (_debug_pbs_level >= 1) {
byte pbs = PBSTileReserved(ti->tile);
@@ -1072,7 +1072,7 @@
} else {
b = 0;
}
- _m[tile].m4 = (_m[tile].m4 & ~0x70) | (b << 4);
+ SB(_m[tile].m4, 4, 3, b);
MarkTileDirtyByTile(tile);
}
} else {
@@ -1097,9 +1097,7 @@
static void ClickTile_Road(TileIndex tile)
{
- if ((_m[tile].m5 & 0xF0) == 0x20) {
- ShowRoadDepotWindow(tile);
- }
+ if (GB(_m[tile].m5, 4, 4) == 2) ShowRoadDepotWindow(tile);
}
static const byte _road_trackbits[16] = {
@@ -1163,15 +1161,15 @@
static uint32 VehicleEnter_Road(Vehicle *v, TileIndex tile, int x, int y)
{
if (IsLevelCrossing(tile)) {
- if (v->type == VEH_Train && (_m[tile].m5 & 4) == 0) {
+ if (v->type == VEH_Train && GB(_m[tile].m5, 2, 1) == 0) {
/* train crossing a road */
SndPlayVehicleFx(SND_0E_LEVEL_CROSSING, v);
- _m[tile].m5 |= 4;
+ SB(_m[tile].m5, 2, 1, 1);
MarkTileDirtyByTile(tile);
}
- } else if ((_m[tile].m5&0xF0) == 0x20){
+ } else if (GB(_m[tile].m5, 4, 4) == 2) {
if (v->type == VEH_Road && v->u.road.frame == 11) {
- if (_roadveh_enter_depot_unk0[_m[tile].m5&3] == v->u.road.state) {
+ if (_roadveh_enter_depot_unk0[GB(_m[tile].m5, 0, 2)] == v->u.road.state) {
RoadVehEnterDepot(v);
return 4;
}
@@ -1184,15 +1182,13 @@
{
if (IsLevelCrossing(tile) && v->type == VEH_Train && v->next == NULL) {
// Turn off level crossing lights
- _m[tile].m5 &= ~4;
+ SB(_m[tile].m5, 2, 1, 0);
MarkTileDirtyByTile(tile);
}
}
static void ChangeTileOwner_Road(TileIndex tile, PlayerID old_player, PlayerID new_player)
{
- byte b;
-
// road/rail crossing where the road is owned by the current player?
if (old_player == _m[tile].m3 && IsLevelCrossing(tile)) {
_m[tile].m3 = (new_player == OWNER_SPECTATOR) ? OWNER_NONE : new_player;
@@ -1203,8 +1199,7 @@
if (new_player != 255) {
SetTileOwner(tile, new_player);
} else {
- b = _m[tile].m5&0xF0;
- if (b == 0) {
+ if (GB(_m[tile].m5, 4, 4) == 0) {
SetTileOwner(tile, OWNER_NONE);
} else if (IsLevelCrossing(tile)) {
_m[tile].m5 = (_m[tile].m5&8) ? 0x5 : 0xA;
--- a/roadveh_cmd.c Wed Oct 05 04:00:39 2005 +0000
+++ b/roadveh_cmd.c Wed Oct 05 07:20:26 2005 +0000
@@ -284,7 +284,7 @@
tile += TileOffsByDir(_road_pf_directions[track]);
if (IsTileType(tile, MP_STREET) &&
- (_m[tile].m5 & 0xF0) == 0x20 &&
+ GB(_m[tile].m5, 4, 4) == 2 &&
IsTileOwner(tile, rfdd->owner)) {
if (length < rfdd->best_length) {
@@ -1034,7 +1034,7 @@
}
if (IsTileType(tile, MP_STREET)) {
- if ((_m[tile].m5&0xF0) == 0x20 && IsTileOwner(tile, v->owner))
+ if (GB(_m[tile].m5, 4, 4) == 2 && IsTileOwner(tile, v->owner))
/* Road crossing */
bitmask |= _road_veh_fp_ax_or[_m[tile].m5&3];
} else if (IsTileType(tile, MP_STATION)) {
@@ -1237,7 +1237,7 @@
v->cur_speed = 0;
- dir = _m[v->tile].m5&3;
+ dir = GB(_m[v->tile].m5, 0, 2);
v->direction = dir*2+1;
rd2 = _roadveh_data_2[dir];
@@ -1286,7 +1286,7 @@
}
if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) &&
- (_m[gp.new_tile].m5&0xF0) == 0 &&
+ GB(_m[gp.new_tile].m5, 4, 4) == 0 &&
(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y)&4)) {
//new_dir = RoadGetNewDirection(v, gp.x, gp.y)
--- a/station_cmd.c Wed Oct 05 04:00:39 2005 +0000
+++ b/station_cmd.c Wed Oct 05 07:20:26 2005 +0000
@@ -1430,11 +1430,11 @@
if (_m[tile].m5 >= 8) return CMD_ERROR;
// tile is already of requested type?
- if ((_m[tile].m3 & 0xFU) == totype) return CMD_ERROR;
+ if (GB(_m[tile].m3, 0, 4) == totype) return CMD_ERROR;
if (exec) {
// change type.
- _m[tile].m3 = (_m[tile].m3 & 0xF0) + totype;
+ SB(_m[tile].m3, 0, 4, totype);
MarkTileDirtyByTile(tile);
}
@@ -2131,7 +2131,7 @@
uint32 image;
const DrawTileSeqStruct *dtss;
const DrawTileSprites *t = NULL;
- byte railtype = _m[ti->tile].m3 & 0xF;
+ byte railtype = GB(_m[ti->tile].m3, 0, 4);
const RailtypeInfo *rti = GetRailTypeInfo(railtype);
SpriteID offset;
uint32 relocation = 0;
--- a/tile.h Wed Oct 05 04:00:39 2005 +0000
+++ b/tile.h Wed Oct 05 07:20:26 2005 +0000
@@ -99,7 +99,7 @@
static inline bool IsTunnelTile(TileIndex tile)
{
- return IsTileType(tile, MP_TUNNELBRIDGE) && (_m[tile].m5 & 0xF0) == 0;
+ return IsTileType(tile, MP_TUNNELBRIDGE) && GB(_m[tile].m5, 4, 4) == 0;
}
static inline Owner GetTileOwner(TileIndex tile)
--- a/town_cmd.c Wed Oct 05 04:00:39 2005 +0000
+++ b/town_cmd.c Wed Oct 05 07:20:26 2005 +0000
@@ -78,7 +78,7 @@
static void TownDrawHouseLift(const TileInfo *ti)
{
- AddChildSpriteScreen(0x5A3, 0xE, 0x3C - (_m[ti->tile].m1 & 0x7F));
+ AddChildSpriteScreen(0x5A3, 0xE, 0x3C - GB(_m[ti->tile].m1, 0, 7));
}
typedef void TownDrawTileProc(const TileInfo *ti);
@@ -183,10 +183,10 @@
SB(_m[tile].m5, 0, 6, i);
}
- a = _m[tile].m1 & 0x7F;
- b = (_m[tile].m5&0x3F) * 6;
+ a = GB(_m[tile].m1, 0, 7);
+ b = GB(_m[tile].m5, 0, 6) * 6;
a += (a < b) ? 1 : -1;
- _m[tile].m1 = (_m[tile].m1 & 0x80) | a;
+ SB(_m[tile].m1, 0, 7, a);
if (a == b) {
_m[tile].m1 &= 0x7F;
@@ -623,7 +623,7 @@
// Reached a tunnel? Then continue at the other side of it.
if (IsTileType(tile, MP_TUNNELBRIDGE) && (_m[tile].m5& ~3) == 4) {
- FindLengthOfTunnelResult flotr = FindLengthOfTunnel(tile, _m[tile].m5&3);
+ FindLengthOfTunnelResult flotr = FindLengthOfTunnel(tile, GB(_m[tile].m5, 0, 2));
*tile_ptr = flotr.tile;
return;
}
--- a/train_cmd.c Wed Oct 05 04:00:39 2005 +0000
+++ b/train_cmd.c Wed Oct 05 07:20:26 2005 +0000
@@ -1258,8 +1258,8 @@
/* Check if there is a train on the tile itself */
if (VehicleFromPos(tile, &tile, TestTrainOnCrossing) == NULL) {
/* If light is on, switch light off */
- if (_m[tile].m5 & 4) {
- _m[tile].m5 &= ~4;
+ if (GB(_m[tile].m5, 2, 1) != 0) {
+ SB(_m[tile].m5, 2, 1, 0);
MarkTileDirtyByTile(tile);
}
}
@@ -1322,7 +1322,7 @@
return v->tile;
for (tile = v->tile;; tile += delta) {
- if (IsTunnelTile(tile) && (_m[tile].m5 & 0x3) != (direction) && GetTileZ(tile) == v->z_pos)
+ if (IsTunnelTile(tile) && GB(_m[tile].m5, 0, 2) != direction && GetTileZ(tile) == v->z_pos)
break;
}
return tile;
@@ -2466,7 +2466,7 @@
// tracks over roads, do owner check of tracks
return
IsTileOwner(tile, v->owner) &&
- (v->subtype != TS_Front_Engine || (_m[tile].m4 & 0xF) == v->u.rail.railtype);
+ (v->subtype != TS_Front_Engine || GB(_m[tile].m4, 0, 4) == v->u.rail.railtype);
default:
return true;
@@ -3173,8 +3173,8 @@
if ((ts &= (ts >> 16)) == 0) {
// make a rail/road crossing red
if (IsTileType(tile, MP_STREET) && IsLevelCrossing(tile)) {
- if (!(_m[tile].m5 & 4)) {
- _m[tile].m5 |= 4;
+ if (GB(_m[tile].m5, 2, 1) == 0) {
+ SB(_m[tile].m5, 2, 1, 1);
SndPlayVehicleFx(SND_0E_LEVEL_CROSSING, v);
MarkTileDirtyByTile(tile);
}
@@ -3319,7 +3319,7 @@
void TrainEnterDepot(Vehicle *v, TileIndex tile)
{
- SetSignalsOnBothDir(tile, _depot_track_ind[_m[tile].m5&3]);
+ SetSignalsOnBothDir(tile, _depot_track_ind[GB(_m[tile].m5, 0, 2)]);
if (v->subtype != TS_Front_Engine)
v = GetFirstVehicleInChain(v);
--- a/train_gui.c Wed Oct 05 04:00:39 2005 +0000
+++ b/train_gui.c Wed Oct 05 07:20:26 2005 +0000
@@ -341,7 +341,7 @@
if (tile != 0) {
w->caption_color = GetTileOwner(tile);
- WP(w,buildtrain_d).railtype = _m[tile].m3 & 0xF;
+ WP(w,buildtrain_d).railtype = GB(_m[tile].m3, 0, 4);
} else {
w->caption_color = _local_player;
WP(w,buildtrain_d).railtype = GetBestRailtype(GetPlayer(_local_player));
--- a/tunnelbridge_cmd.c Wed Oct 05 04:00:39 2005 +0000
+++ b/tunnelbridge_cmd.c Wed Oct 05 07:20:26 2005 +0000
@@ -627,7 +627,7 @@
len++;
} while (
!IsTileType(tile, MP_TUNNELBRIDGE) ||
- (_m[tile].m5 & 0xF0) != 0 ||
+ GB(_m[tile].m5, 4, 4) != 0 ||
(_m[tile].m5 ^ 2) != m5 ||
GetTileZ(tile) != z
);
@@ -676,8 +676,8 @@
if (flags & DC_EXEC) {
// We first need to request the direction before calling DoClearSquare
// else the direction is always 0.. dah!! ;)
- byte tile_dir = _m[tile].m5&3;
- byte endtile_dir = _m[endtile].m5&3;
+ byte tile_dir = GB(_m[tile].m5, 0, 2);
+ byte endtile_dir = GB(_m[endtile].m5, 0, 2);
DoClearSquare(tile);
DoClearSquare(endtile);
UpdateSignalsOnSegment(tile, _updsignals_tunnel_dir[tile_dir]);
@@ -690,7 +690,7 @@
static TileIndex FindEdgesOfBridge(TileIndex tile, TileIndex *endtile)
{
- int direction = _m[tile].m5 & 1;
+ int direction = GB(_m[tile].m5, 0, 1);
TileIndex start;
// find start of bridge
@@ -723,7 +723,7 @@
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
- direction = _m[tile].m5&1;
+ direction = GB(_m[tile].m5, 0, 1);
/* delete stuff under the middle part if there's a transport route there..? */
if ((_m[tile].m5 & 0xE0) == 0xE0) {
@@ -871,14 +871,14 @@
// railway tunnel
if (!CheckTileOwnership(tile)) return CMD_ERROR;
- if ((_m[tile].m3 & 0xFU) == totype) return CMD_ERROR;
+ if (GB(_m[tile].m3, 0, 4) == totype) return CMD_ERROR;
endtile = CheckTunnelBusy(tile, &length);
if (endtile == INVALID_TILE) return CMD_ERROR;
if (exec) {
- _m[tile].m3 = (_m[tile].m3 & 0xF0) + totype;
- _m[endtile].m3 = (_m[endtile].m3 & 0xF0) + totype;
+ SB(_m[tile].m3, 0, 4, totype);
+ SB(_m[endtile].m3, 0, 4, totype);
MarkTileDirtyByTile(tile);
MarkTileDirtyByTile(endtile);
}
@@ -890,10 +890,10 @@
return CMD_ERROR;
// tile is already of requested type?
- if ((_m[tile].m3 & 0xFU) == totype) return CMD_ERROR;
+ if (GB(_m[tile].m3, 0, 4) == totype) return CMD_ERROR;
// change type.
if (exec) {
- _m[tile].m3 = (_m[tile].m3 & 0xF0) + totype;
+ SB(_m[tile].m3, 0, 4, totype);
MarkTileDirtyByTile(tile);
}
return _price.build_rail >> 1;
@@ -919,19 +919,19 @@
return CMD_ERROR;
}
- if ((_m[tile].m3 & 0xFU) == totype) return CMD_ERROR;
+ if (GB(_m[tile].m3, 0, 4) == totype) return CMD_ERROR;
cost = 0;
do {
if (exec) {
if (tile == starttile || tile == endtile) {
- _m[tile].m3 = (_m[tile].m3 & 0xF0) + totype;
+ SB(_m[tile].m3, 0, 4, totype);
} else {
- _m[tile].m3 = (_m[tile].m3 & 0x0F) + (totype << 4);
+ SB(_m[tile].m3, 4, 4, totype);
}
MarkTileDirtyByTile(tile);
}
cost += (_price.build_rail>>1);
- tile += _m[tile].m5 & 1 ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
+ tile += GB(_m[tile].m5, 0, 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
} while (tile <= endtile);
return cost;
@@ -947,7 +947,7 @@
TileIndex tile = ti->tile;
// find the end tile of the bridge.
- delta = (_m[tile].m5 & 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
+ delta = GB(_m[tile].m5, 0, 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
do {
assert((_m[tile].m5 & 0xC0) == 0xC0); // bridge and middle part
tile += delta;
@@ -1124,7 +1124,7 @@
}
if (!(image&1)) {
- const RailtypeInfo *rti = GetRailTypeInfo(_m[ti->tile].m3 & 0xF);
+ const RailtypeInfo *rti = GetRailTypeInfo(GB(_m[ti->tile].m3, 0, 4));
// railway
image = 0x3F3 + (ti->map5 & 1);
if (ti->tileh != 0) image = _track_sloped_sprites[ti->tileh - 1] + 0x3F3;
@@ -1316,7 +1316,7 @@
/* scan to the end of the bridge, that's where the owner is stored */
if (_m[tile].m5 & 0x40) {
- TileIndexDiff delta = _m[tile].m5 & 1 ? TileDiffXY(0, -1) : TileDiffXY(-1, 0);
+ TileIndexDiff delta = GB(_m[tile].m5, 0, 1) ? TileDiffXY(0, -1) : TileDiffXY(-1, 0);
do tile += delta; while (_m[tile].m5 & 0x40);
}
@@ -1450,7 +1450,7 @@
int dir, vdir;
byte fc;
- if ((_m[tile].m5 & 0xF0) == 0) {
+ if (GB(_m[tile].m5, 4, 4) == 0) {
z = GetSlopeZ(x, y) - v->z_pos;
if (myabs(z) > 2)
return 8;
@@ -1458,7 +1458,7 @@
if (v->type == VEH_Train) {
fc = (x&0xF)+(y<<4);
- dir = _m[tile].m5 & 3;
+ dir = GB(_m[tile].m5, 0, 2);
vdir = v->direction >> 1;
if (v->u.rail.track != 0x40 && dir == vdir) {
@@ -1487,7 +1487,7 @@
}
} else if (v->type == VEH_Road) {
fc = (x&0xF)+(y<<4);
- dir = _m[tile].m5 & 3;
+ dir = GB(_m[tile].m5, 0, 2);
vdir = v->direction >> 1;
// Enter tunnel?
@@ -1542,7 +1542,7 @@
byte z = v->z_pos;
for (tile = v->tile;; tile += delta) {
- if (IsTileType(tile, MP_TUNNELBRIDGE) && (_m[tile].m5 & 0xF0) == 0 &&
+ if (IsTileType(tile, MP_TUNNELBRIDGE) && GB(_m[tile].m5, 4, 4) == 0 &&
GetTileZ(tile) == z)
break;
}
--- a/water_cmd.c Wed Oct 05 04:00:39 2005 +0000
+++ b/water_cmd.c Wed Oct 05 07:20:26 2005 +0000
@@ -144,7 +144,7 @@
static int32 RemoveShiplift(TileIndex tile, uint32 flags)
{
- TileIndexDiff delta = TileOffsByDir(_m[tile].m5 & 3);
+ TileIndexDiff delta = TileOffsByDir(GB(_m[tile].m5, 0, 2));
// make sure no vehicle is on the tile.
if (!EnsureNoVehicle(tile) || !EnsureNoVehicle(tile + delta) || !EnsureNoVehicle(tile - delta))
@@ -500,7 +500,7 @@
switch (GetTileType(target)) {
case MP_RAILWAY: {
uint slope = GetTileSlope(target, NULL);
- byte tracks = _m[target].m5 & 0x3F;
+ byte tracks = GB(_m[target].m5, 0, 6);
if (!(
(slope == 1 && tracks == 0x20) ||
(slope == 2 && tracks == 0x04) ||