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(svn r3387) Restructure the code, which places fences along railroad tracks. 

This includes no functional changes, just some cleanup before some bugfix
release/0.4.5
tron 2006-01-07 16:30:49 +00:00
parent 793a0099d4
commit 18de531671
1 changed files with 64 additions and 35 deletions
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99
rail_cmd.c
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@ -1951,7 +1951,6 @@ static void TileLoop_Track(TileIndex tile)
{
byte old_ground;
byte new_ground;
TrackBits rail;
old_ground = _m[tile].m5 & RAIL_TYPE_SPECIAL ? GB(_m[tile].m4, 0, 4) : GB(_m[tile].m2, 0, 4);
@ -1978,45 +1977,75 @@ static void TileLoop_Track(TileIndex tile)
if (old_ground != RAIL_GROUND_BROWN) { /* wait until bottom is green */
/* determine direction of fence */
rail = _m[tile].m5 & TRACK_BIT_MASK;
TrackBits rail = _m[tile].m5 & TRACK_BIT_MASK;
if (rail == TRACK_BIT_UPPER) {
new_ground = RAIL_GROUND_FENCE_HORIZ1;
} else if (rail == TRACK_BIT_LOWER) {
new_ground = RAIL_GROUND_FENCE_HORIZ2;
} else if (rail == TRACK_BIT_LEFT) {
new_ground = RAIL_GROUND_FENCE_VERT1;
} else if (rail == TRACK_BIT_RIGHT) {
new_ground = RAIL_GROUND_FENCE_VERT2;
} else {
PlayerID owner = GetTileOwner(tile);
switch (rail) {
case TRACK_BIT_UPPER: new_ground = RAIL_GROUND_FENCE_HORIZ1; break;
case TRACK_BIT_LOWER: new_ground = RAIL_GROUND_FENCE_HORIZ2; break;
case TRACK_BIT_LEFT: new_ground = RAIL_GROUND_FENCE_VERT1; break;
case TRACK_BIT_RIGHT: new_ground = RAIL_GROUND_FENCE_VERT2; break;
if ( (!(rail&(TRACK_BIT_DIAG2|TRACK_BIT_UPPER|TRACK_BIT_LEFT)) && (rail&TRACK_BIT_DIAG1)) || rail==(TRACK_BIT_LOWER|TRACK_BIT_RIGHT)) {
if (!IsTileType(tile + TileDiffXY(0, -1), MP_RAILWAY) ||
!IsTileOwner(tile + TileDiffXY(0, -1), owner) ||
(_m[tile + TileDiffXY(0, -1)].m5 == TRACK_BIT_UPPER || _m[tile + TileDiffXY(0, -1)].m5 == TRACK_BIT_LEFT))
new_ground = RAIL_GROUND_FENCE_NW;
}
default: {
PlayerID owner = GetTileOwner(tile);
if ( (!(rail&(TRACK_BIT_DIAG2|TRACK_BIT_LOWER|TRACK_BIT_RIGHT)) && (rail&TRACK_BIT_DIAG1)) || rail==(TRACK_BIT_UPPER|TRACK_BIT_LEFT)) {
if (!IsTileType(tile + TileDiffXY(0, 1), MP_RAILWAY) ||
!IsTileOwner(tile + TileDiffXY(0, 1), owner) ||
(_m[tile + TileDiffXY(0, 1)].m5 == TRACK_BIT_LOWER || _m[tile + TileDiffXY(0, 1)].m5 == TRACK_BIT_RIGHT))
new_ground = (new_ground == RAIL_GROUND_FENCE_NW) ? RAIL_GROUND_FENCE_SENW : RAIL_GROUND_FENCE_SE;
}
if (rail == (TRACK_BIT_LOWER | TRACK_BIT_RIGHT) || (
!(rail & (TRACK_BIT_DIAG2 | TRACK_BIT_UPPER | TRACK_BIT_LEFT)) &&
(rail & TRACK_BIT_DIAG1)
)) {
TileIndex n = tile + TileDiffXY(0, -1);
if ( (!(rail&(TRACK_BIT_DIAG1|TRACK_BIT_UPPER|TRACK_BIT_RIGHT)) && (rail&TRACK_BIT_DIAG2)) || rail==(TRACK_BIT_LOWER|TRACK_BIT_LEFT)) {
if (!IsTileType(tile + TileDiffXY(-1, 0), MP_RAILWAY) ||
!IsTileOwner(tile + TileDiffXY(-1, 0), owner) ||
(_m[tile + TileDiffXY(-1, 0)].m5 == TRACK_BIT_UPPER || _m[tile + TileDiffXY(-1, 0)].m5 == TRACK_BIT_RIGHT))
new_ground = RAIL_GROUND_FENCE_NE;
}
if (!IsTileType(n, MP_RAILWAY) ||
!IsTileOwner(n, owner) ||
_m[n].m5 == TRACK_BIT_UPPER ||
_m[n].m5 == TRACK_BIT_LEFT) {
new_ground = RAIL_GROUND_FENCE_NW;
}
}
if ( (!(rail&(TRACK_BIT_DIAG1|TRACK_BIT_LOWER|TRACK_BIT_LEFT)) && (rail&TRACK_BIT_DIAG2)) || rail==(TRACK_BIT_UPPER|TRACK_BIT_RIGHT)) {
if (!IsTileType(tile + TileDiffXY(1, 0), MP_RAILWAY) ||
!IsTileOwner(tile + TileDiffXY(1, 0), owner) ||
(_m[tile + TileDiffXY(1, 0)].m5 == TRACK_BIT_LOWER || _m[tile + TileDiffXY(1, 0)].m5 == TRACK_BIT_LEFT))
new_ground = (new_ground == RAIL_GROUND_FENCE_NE) ? RAIL_GROUND_FENCE_NESW : RAIL_GROUND_FENCE_SW;
if (rail == (TRACK_BIT_UPPER | TRACK_BIT_LEFT) || (
!(rail & (TRACK_BIT_DIAG2 | TRACK_BIT_LOWER | TRACK_BIT_RIGHT)) &&
(rail & TRACK_BIT_DIAG1)
)) {
TileIndex n = tile + TileDiffXY(0, 1);
if (!IsTileType(n, MP_RAILWAY) ||
!IsTileOwner(n, owner) ||
_m[n].m5 == TRACK_BIT_LOWER ||
_m[n].m5 == TRACK_BIT_RIGHT) {
new_ground = (new_ground == RAIL_GROUND_FENCE_NW) ?
RAIL_GROUND_FENCE_SENW : RAIL_GROUND_FENCE_SE;
}
}
if (rail == (TRACK_BIT_LOWER | TRACK_BIT_LEFT) || (
!(rail & (TRACK_BIT_DIAG1 | TRACK_BIT_UPPER | TRACK_BIT_RIGHT)) &&
(rail & TRACK_BIT_DIAG2)
)) {
TileIndex n = tile + TileDiffXY(-1, 0);
if (!IsTileType(n, MP_RAILWAY) ||
!IsTileOwner(n, owner) ||
_m[n].m5 == TRACK_BIT_UPPER ||
_m[n].m5 == TRACK_BIT_RIGHT) {
new_ground = RAIL_GROUND_FENCE_NE;
}
}
if (rail == (TRACK_BIT_UPPER | TRACK_BIT_RIGHT) || (
!(rail & (TRACK_BIT_DIAG1 | TRACK_BIT_LOWER | TRACK_BIT_LEFT)) &&
(rail & TRACK_BIT_DIAG2)
)) {
TileIndex n = tile + TileDiffXY(1, 0);
if (!IsTileType(n, MP_RAILWAY) ||
!IsTileOwner(n, owner) ||
_m[n].m5 == TRACK_BIT_LOWER ||
_m[n].m5 == TRACK_BIT_LEFT) {
new_ground = (new_ground == RAIL_GROUND_FENCE_NE) ?
RAIL_GROUND_FENCE_NESW : RAIL_GROUND_FENCE_SW;
}
}
break;
}
}
}