diff options
author | tron <tron@openttd.org> | 2005-10-19 14:49:46 +0000 |
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committer | tron <tron@openttd.org> | 2005-10-19 14:49:46 +0000 |
commit | ece9b9b2b6a2feb43c9215c3073e2c09f9f72ae9 (patch) | |
tree | ec3c494c40b7ce63f77525976e380da0b0985543 /tunnelbridge_cmd.c | |
parent | 5f604ec63a2a603d8c008210ac69760a5f552826 (diff) | |
download | openttd-ece9b9b2b6a2feb43c9215c3073e2c09f9f72ae9.tar.xz |
(svn r3066) Constify the parameter of GetSlopeZ_*()
Diffstat (limited to 'tunnelbridge_cmd.c')
-rw-r--r-- | tunnelbridge_cmd.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/tunnelbridge_cmd.c b/tunnelbridge_cmd.c index b5bcfe3d5..d5b1fea4d 100644 --- a/tunnelbridge_cmd.c +++ b/tunnelbridge_cmd.c @@ -1215,10 +1215,12 @@ static void DrawTile_TunnelBridge(TileInfo *ti) } } -static uint GetSlopeZ_TunnelBridge(TileInfo *ti) { +static uint GetSlopeZ_TunnelBridge(const TileInfo* ti) +{ uint z = ti->z; uint x = ti->x & 0xF; uint y = ti->y & 0xF; + uint tileh = ti->tileh; // swap directions if Y tunnel/bridge to let the code handle the X case only. if (ti->map5 & 1) uintswap(x,y); @@ -1233,11 +1235,11 @@ static uint GetSlopeZ_TunnelBridge(TileInfo *ti) { if ( ti->map5 & 0x80 ) { // bridge ending? if (!(ti->map5 & 0x40)) { - if (BRIDGE_FULL_LEVELED_FOUNDATION & (1 << ti->tileh)) // 7, 11, 13, 14 + if (BRIDGE_FULL_LEVELED_FOUNDATION & (1 << tileh)) // 7, 11, 13, 14 z += 8; // no ramp for bridge ending - if ((BRIDGE_PARTLY_LEVELED_FOUNDATION & (1 << ti->tileh) || BRIDGE_NO_FOUNDATION & (1 << ti->tileh)) && ti->tileh != 0) { + if ((BRIDGE_PARTLY_LEVELED_FOUNDATION & (1 << tileh) || BRIDGE_NO_FOUNDATION & (1 << tileh)) && tileh != 0) { return z + 8; } else if (!(ti->map5 & 0x20)) { // northern / southern ending @@ -1251,7 +1253,7 @@ static uint GetSlopeZ_TunnelBridge(TileInfo *ti) { // bridge middle part } else { // build on slopes? - if (ti->tileh) z+=8; + if (tileh != 0) z += 8; // keep the same elevation because we're on the bridge? if (_get_z_hint >= z + 8) @@ -1264,12 +1266,12 @@ static uint GetSlopeZ_TunnelBridge(TileInfo *ti) { // in the shared area, assume that we're below the bridge, cause otherwise the hint would've caught it. // if rail or road below then it means it's possibly build on slope below the bridge. if (ti->map5 & 0x20) { - uint f = _bridge_foundations[ti->map5&1][ti->tileh]; + uint f = _bridge_foundations[ti->map5 & 1][tileh]; // make sure that the slope is not inclined foundation if (IS_BYTE_INSIDE(f, 1, 15)) return z; // change foundation type? XXX - should be const; accessor function! - if (f) ti->tileh = _inclined_tileh[f - 15]; + if (f != 0) tileh = _inclined_tileh[f - 15]; } // no transport route, fallback to default @@ -1279,16 +1281,16 @@ static uint GetSlopeZ_TunnelBridge(TileInfo *ti) { // if it's a bridge middle with transport route below, then we need to compensate for build on slopes if ( (ti->map5 & (0x80 + 0x40 + 0x20)) == (0x80 + 0x40 + 0x20)) { uint f; - if (ti->tileh) z += 8; - f = _bridge_foundations[ti->map5&1][ti->tileh]; + if (tileh != 0) z += 8; + f = _bridge_foundations[ti->map5&1][tileh]; if (IS_BYTE_INSIDE(f, 1, 15)) return z; - if (f) ti->tileh = _inclined_tileh[f - 15]; + if (f != 0) tileh = _inclined_tileh[f - 15]; } } // default case z = ti->z; - return GetPartialZ(ti->x&0xF, ti->y&0xF, ti->tileh) + z; + return GetPartialZ(ti->x & 0xF, ti->y & 0xF, tileh) + z; } static uint GetSlopeTileh_TunnelBridge(const TileInfo *ti) { |