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(svn r7607) -Codechange: remove direct map accesses for snow/desert on tunnels and bridges.

release/0.6
rubidium 2006-12-29 09:10:44 +00:00
parent 9cb975f7f0
commit 0d459f909c
3 changed files with 40 additions and 6 deletions
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13
bridge_map.h
View File

@ -81,6 +81,19 @@ static inline TransportType GetBridgeTransportType(TileIndex t)
}
static inline bool HasBridgeSnowOrDesert(TileIndex t)
{
assert(IsBridgeTile(t));
return HASBIT(_m[t].m4, 7);
}
static inline void SetBridgeSnowOrDesert(TileIndex t, bool snow_or_desert)
{
assert(IsBridgeTile(t));
SB(_m[t].m4, 7, 1, snow_or_desert);
}
/**
* Finds the end of a bridge in the specified direction starting at a middle tile
*/

12
tunnel_map.h
View File

@ -35,6 +35,18 @@ static inline TransportType GetTunnelTransportType(TileIndex t)
return (TransportType)GB(_m[t].m5, 2, 2);
}
static inline bool HasTunnelSnowOrDesert(TileIndex t)
{
assert(IsTunnelTile(t));
return HASBIT(_m[t].m4, 7);
}
static inline void SetTunnelSnowOrDesert(TileIndex t, bool snow_or_desert)
{
assert(IsTunnelTile(t));
SB(_m[t].m4, 7, 1, snow_or_desert);
}
TileIndex GetOtherTunnelEnd(TileIndex);
bool IsTunnelInWay(TileIndex, uint z);

21
tunnelbridge_cmd.c
View File

@ -798,7 +798,6 @@ uint GetBridgeFoundation(Slope tileh, Axis axis)
static void DrawTile_TunnelBridge(TileInfo *ti)
{
uint32 image;
bool ice = _m[ti->tile].m4 & 0x80;
if (IsTunnel(ti->tile)) {
if (GetTunnelTransportType(ti->tile) == TRANSPORT_RAIL) {
@ -807,7 +806,7 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
image = SPR_TUNNEL_ENTRY_REAR_ROAD;
}
if (ice) image += 32;
if (HasTunnelSnowOrDesert(ti->tile)) image += 32;
image += GetTunnelDirection(ti->tile) * 2;
DrawGroundSprite(image);
@ -817,6 +816,7 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
DrawBridgeMiddle(ti);
} else if (IsBridge(ti->tile)) { // XXX is this necessary?
int base_offset;
bool ice = HasBridgeSnowOrDesert(ti->tile);
if (GetBridgeTransportType(ti->tile) == TRANSPORT_RAIL) {
base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
@ -1109,17 +1109,26 @@ static void AnimateTile_TunnelBridge(TileIndex tile)
static void TileLoop_TunnelBridge(TileIndex tile)
{
bool snow_or_desert = IsTunnelTile(tile) ? HasTunnelSnowOrDesert(tile) : HasBridgeSnowOrDesert(tile);
switch (_opt.landscape) {
case LT_HILLY:
if (HASBIT(_m[tile].m4, 7) != (GetTileZ(tile) > _opt.snow_line)) {
TOGGLEBIT(_m[tile].m4, 7);
if (snow_or_desert != (GetTileZ(tile) > _opt.snow_line)) {
if (IsTunnelTile(tile)) {
SetTunnelSnowOrDesert(tile, !snow_or_desert);
} else {
SetBridgeSnowOrDesert(tile, !snow_or_desert);
}
MarkTileDirtyByTile(tile);
}
break;
case LT_DESERT:
if (GetTropicZone(tile) == TROPICZONE_DESERT && !(_m[tile].m4 & 0x80)) {
_m[tile].m4 |= 0x80;
if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
if (IsTunnelTile(tile)) {
SetTunnelSnowOrDesert(tile, true);
} else {
SetBridgeSnowOrDesert(tile, true);
}
MarkTileDirtyByTile(tile);
}
break;