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(svn r3837) Partially unmagicfy restoring the tiles when deleting a bridge 

Existing bug: When restoring a road piece which belongs to a town the town index unconditionally gets set to 0
This commit is contained in:
tron 2006-03-12 20:59:56 +00:00
parent b05a98fdfa
commit 2732fc8d6f
1 changed files with 30 additions and 23 deletions
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53
tunnelbridge_cmd.c
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@ -7,6 +7,7 @@
#include "stdafx.h"
#include "openttd.h"
#include "rail_map.h"
#include "road_map.h"
#include "table/sprites.h"
#include "table/strings.h"
@ -23,6 +24,7 @@
#include "variables.h"
#include "bridge.h"
#include "train.h"
#include "water_map.h"
#include "table/bridge_land.h"
@ -691,9 +693,7 @@ static int32 DoClearBridge(TileIndex tile, uint32 flags)
}
if (flags & DC_EXEC) {
byte m5;
uint c = tile;
uint16 new_data;
TileIndex c = tile;
//checks if the owner is town then decrease town rating by RATING_TUNNEL_BRIDGE_DOWN_STEP until
// you have a "Poor" (0) town rating
@ -701,27 +701,34 @@ static int32 DoClearBridge(TileIndex tile, uint32 flags)
ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM);
do {
m5 = _m[c].m5;
if (m5 & 0x40) {
if (m5 & 0x20) {
static const uint16 _new_data_table[] = {0x1002, 0x1001, 0x2005, 0x200A, 0, 0, 0, 0};
new_data = _new_data_table[((m5 & 0x18) >> 2) | (m5 & 1)];
} else {
if (GB(m5, 3, 2) == 0) goto clear_it;
new_data = (GetTileSlope(c, NULL) == 0) ? 0x6000 : 0x6001;
}
SetTileType(c, new_data >> 12);
_m[c].m5 = (byte)new_data;
_m[c].m2 = 0;
_m[c].m4 &= 0x0F;
MarkTileDirtyByTile(c);
} else {
clear_it:;
if (!(_m[c].m5 & 0x40)) {
// bridge ramp
DoClearSquare(c);
} else {
// bridge middle part
if (_m[c].m5 & 0x20) {
// transport under bridge
if (GB(_m[c].m5, 3, 2) == TRANSPORT_RAIL) {
MakeRailNormal(c, GetTileOwner(c), _m[c].m5 & 1 ? TRACK_BIT_X : TRACK_BIT_Y, GB(_m[c].m3, 0, 3));
} else {
MakeRoadNormal(c, GetTileOwner(c), _m[c].m5 & 1 ? ROAD_X : ROAD_Y, 0); // XXX Determine town, missing till now
}
MarkTileDirtyByTile(c);
} else {
// clear under bridge
if (GB(_m[c].m5, 3, 2) == 0) {
// grass under bridge
DoClearSquare(c);
} else {
// water under bridge
if (GetTileSlope(c, NULL) == 0) {
MakeWater(c);
} else {
MakeShore(c);
}
MarkTileDirtyByTile(c);
}
}
}
c += (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
} while (c <= endtile);