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(svn r1567) -Fix: [110452] On horizontal/vertical tracks you are also charged for building/removing signals on the parallel track on the same tile. Signal updating is also correct. (Hackykid)

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darkvater 2005-01-19 13:31:46 +00:00
parent 15630855dd
commit e4a3d284b2
1 changed files with 51 additions and 22 deletions
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73
rail_cmd.c
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@ -873,6 +873,7 @@ int32 CmdBuildSignals(int x, int y, uint32 flags, uint32 p1, uint32 p2)
byte m5;
int32 cost;
int track = p1 & 0x7;
byte a,b,c,d;
assert(track >= 0 && track < 6); // only 6 possible track-combinations
@ -901,13 +902,21 @@ int32 CmdBuildSignals(int x, int y, uint32 flags, uint32 p1, uint32 p2)
if (!CheckTileOwnership(tile))
return CMD_ERROR;
// calculate masks for..
a = _signals_table[track]; // .. signal for this track in one direction
b = _signals_table[track + 8]; // .. signal for this track in the other direction
c = a | b; // .. 2-way signal for this track
// If it had signals previously it is free to change orientation/pre-exit-combo signals
cost = 0;
if (!(m5 & RAIL_TYPE_SIGNALS)) {
cost = _price.build_signals;
} else {
d = _map3_lo[tile] & c; // mask of built signals. it only affects &0xF0
if (d == 0) cost += _price.build_signals; // no signals built yet
// if converting signals<->semaphores, charge the player for it
} else if (p2 && ((HASBIT(p1, 3) && !HASBIT(_map3_hi[tile], 2)) || (!HASBIT(p1, 3) && HASBIT(_map3_hi[tile], 2)) ) ) {
cost += _price.build_signals + _price.remove_signals;
if (p2 && ((HASBIT(p1, 3) && !HASBIT(_map3_hi[tile], 2)) || (!HASBIT(p1, 3) && HASBIT(_map3_hi[tile], 2)) ) )
cost += _price.build_signals + _price.remove_signals;
}
if (flags & DC_EXEC) {
@ -918,23 +927,17 @@ int32 CmdBuildSignals(int x, int y, uint32 flags, uint32 p1, uint32 p2)
_map2[tile] |= 0xF0; // all signals are on
_map3_lo[tile] &= ~0xF0; // no signals built by default
_map3_hi[tile] = (p1 & 8) ? 4 : 0;// initial presignal state, semaphores depend on ctrl key
d = 0; // no existing signals
if (!p2)
goto ignore_presig;
}
if (!p2) { // not called from CmdBuildManySignals
if (!HASBIT(p1, 3)) { // not CTRL pressed
byte a,b,c,d;
ignore_presig:
a = _signals_table[track]; // signal for this track in one direction
b = _signals_table[track + 8]; // signal for this track in the other direction
c = a | b;
d = _map3_lo[tile] & c; // mask of built signals. it only affects &0xF0
// Alternate between a|b, b, a
if ( d != 0 && d != a) {
c = (d==c)?b:a;
}
if ( d != 0 && d != a)
c = (d == c)?b:a;
_map3_lo[tile] = (_map3_lo[tile]&~(a|b)) | c;
} else // CTRL pressed
@ -1064,7 +1067,7 @@ int32 CmdBuildManySignals(int x, int y, uint32 flags, uint32 p1, uint32 p2)
}
/* Remove signals
* p1 = unused
* p1 bits 0..2 = track
* p2 = unused
*/
@ -1072,6 +1075,8 @@ int32 CmdRemoveSignals(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
TileInfo ti;
uint tile;
int track = p1 & 0x7;
byte a,b,c,d;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
@ -1094,16 +1099,29 @@ int32 CmdRemoveSignals(int x, int y, uint32 flags, uint32 p1, uint32 p2)
if (_current_player != OWNER_WATER && !CheckTileOwnership(tile))
return CMD_ERROR;
// calculate already built signals
a = _signals_table[track]; // signal for this track in one direction
b = _signals_table[track + 8]; // signal for this track in the other direction
c = a | b;
d = _map3_lo[tile] & c;
/* no signals on selected track? */
if (d == 0)
return CMD_ERROR;
/* Do it? */
if (flags & DC_EXEC) {
byte bits = _map5[tile];
_map5[tile] &= ~RAIL_TYPE_SIGNALS;
_map2[tile] &= ~0xF0;
CLRBIT(_map3_hi[tile], 2); // remove any possible semaphores
_map3_lo[tile] &= ~c;
/* TTDBUG: this code contains a bug, if a tile contains 2 signals
* on separate tracks, it won't work properly for the 2nd track */
SetSignalsOnBothDir(tile, FIND_FIRST_BIT(bits & RAIL_BIT_MASK));
/* removed last signal from tile? */
if ((_map3_lo[tile] & 0xF0) == 0) {
_map5[tile] &= ~RAIL_TYPE_SIGNALS;
_map2[tile] &= ~0xF0;
CLRBIT(_map3_hi[tile], 2); // remove any possible semaphores
}
SetSignalsOnBothDir(tile, track);
MarkTileDirtyByTile(tile);
}
@ -1229,9 +1247,20 @@ regular_track:;
return cost;
} else if ((m5 & RAIL_TYPE_MASK)==RAIL_TYPE_SIGNALS) {
cost = DoCommandByTile(tile, 0, 0, flags, CMD_REMOVE_SIGNALS);
if (cost == CMD_ERROR)
return CMD_ERROR;
cost = 0;
if (_map3_lo[tile] & (_signals_table[0] | _signals_table[0 + 8])) { // check for signals in the first track
ret = DoCommandByTile(tile, 0, 0, flags, CMD_REMOVE_SIGNALS);
if (ret == CMD_ERROR)
return CMD_ERROR;
cost += ret;
};
if (_map3_lo[tile] & (_signals_table[3] | _signals_table[3 + 8])) { // check for signals in the other track
ret = DoCommandByTile(tile, 3, 0, flags, CMD_REMOVE_SIGNALS);
if (ret == CMD_ERROR)
return CMD_ERROR;
cost += ret;
};
m5 &= RAIL_BIT_MASK;
if (flags & DC_EXEC)
goto regular_track;