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-rw-r--r--tunnelbridge_cmd.c655
1 files changed, 249 insertions, 406 deletions
diff --git a/tunnelbridge_cmd.c b/tunnelbridge_cmd.c
index 54355bba6..2ffb77db1 100644
--- a/tunnelbridge_cmd.c
+++ b/tunnelbridge_cmd.c
@@ -30,11 +30,6 @@
#include "table/bridge_land.h"
-extern const byte _track_sloped_sprites[14];
-extern const SpriteID _water_shore_sprites[15];
-
-extern void DrawCanalWater(TileIndex tile);
-
const Bridge orig_bridge[] = {
/*
year of availablity
@@ -197,7 +192,6 @@ int32 CmdBuildBridge(TileIndex end_tile, uint32 flags, uint32 p1, uint32 p2)
TileIndex tile;
TileIndexDiff delta;
uint bridge_len;
- uint odd_middle_part;
Axis direction;
uint i;
int32 cost, terraformcost, ret;
@@ -289,6 +283,26 @@ int32 CmdBuildBridge(TileIndex end_tile, uint32 flags, uint32 p1, uint32 p2)
return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
cost += terraformcost;
+ {
+ TileIndex Heads[] = {tile_start, tile_end};
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ if (MayHaveBridgeAbove(Heads[i])) {
+ if (IsBridgeAbove(Heads[i])) {
+ TileIndex north_head = GetNorthernBridgeEnd(Heads[i]);
+ int z1, z2;
+
+ if (direction == GetBridgeAxis(Heads[i])) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
+
+ z1 = GetBridgeHeight(north_head, GetBridgeAxis(Heads[i]));
+ z2 = GetBridgeHeight(Heads[i], direction);
+
+ if (z1 == z2) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
+ }
+ }
+ }
+ }
/* do the drill? */
if (flags & DC_EXEC) {
@@ -305,47 +319,42 @@ int32 CmdBuildBridge(TileIndex end_tile, uint32 flags, uint32 p1, uint32 p2)
MarkTileDirtyByTile(tile_end);
}
- // position of middle part of the odd bridge (larger than MAX(i) otherwise)
- odd_middle_part = (bridge_len % 2) ? (bridge_len / 2) : bridge_len;
-
tile = tile_start;
delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
for (i = 0; i != bridge_len; i++) {
- TransportType transport_under;
- Owner owner_under = OWNER_NONE;
- RailType rail_under = INVALID_RAILTYPE;
uint z;
tile += delta;
- if (GetTileSlope(tile, &z) != SLOPE_FLAT && z >= z_start) {
- return_cmd_error(STR_5009_LEVEL_LAND_OR_WATER_REQUIRED);
+ if (GetTileSlope(tile, &z) != SLOPE_FLAT && z >= z_start) return_cmd_error(STR_5009_LEVEL_LAND_OR_WATER_REQUIRED);
+
+ if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
+ /* Disallow crossing bridges for the time being */
+ return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
}
switch (GetTileType(tile)) {
case MP_WATER:
if (!EnsureNoVehicle(tile)) return_cmd_error(STR_980E_SHIP_IN_THE_WAY);
if (!(IsWater(tile) || IsCoast(tile))) goto not_valid_below;
- transport_under = TRANSPORT_WATER;
break;
case MP_RAILWAY:
- if (GetRailTileType(tile) != RAIL_TILE_NORMAL ||
- GetTrackBits(tile) != (direction == AXIS_X ? TRACK_BIT_Y : TRACK_BIT_X)) {
- goto not_valid_below;
- }
- transport_under = TRANSPORT_RAIL;
- owner_under = GetTileOwner(tile);
- rail_under = GetRailType(tile);
+ if (!IsPlainRailTile(tile)) goto not_valid_below;
break;
case MP_STREET:
- if (GetRoadTileType(tile) != ROAD_TILE_NORMAL ||
- GetRoadBits(tile) != (direction == AXIS_X ? ROAD_Y : ROAD_X)) {
- goto not_valid_below;
- }
- transport_under = TRANSPORT_ROAD;
- owner_under = GetTileOwner(tile);
+ if (GetRoadTileType(tile) != ROAD_TILE_NORMAL) goto not_valid_below;
+ break;
+
+ case MP_TUNNELBRIDGE:
+ if (IsTunnel(tile)) break;
+ if (direction == DiagDirToAxis(GetBridgeRampDirection(tile))) goto not_valid_below;
+ if (GetBridgeHeight(tile_start, direction) == GetBridgeHeight(tile, DiagDirToAxis(GetBridgeRampDirection(tile)))) goto not_valid_below;
+ break;
+
+ case MP_CLEAR:
+ if (IsBridgeAbove(tile)) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
break;
default:
@@ -354,50 +363,11 @@ not_valid_below:;
ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
if (CmdFailed(ret)) return ret;
cost += ret;
- transport_under = INVALID_TRANSPORT;
break;
}
if (flags & DC_EXEC) {
- uint piece;
-
- //bridges pieces sequence (middle parts)
- // bridge len 1: 0
- // bridge len 2: 0 1
- // bridge len 3: 0 4 1
- // bridge len 4: 0 2 3 1
- // bridge len 5: 0 2 5 3 1
- // bridge len 6: 0 2 3 2 3 1
- // bridge len 7: 0 2 3 4 2 3 1
- // #0 - always as first, #1 - always as last (if len>1)
- // #2,#3 are to pair in order
- // for odd bridges: #5 is going in the bridge middle if on even position, #4 on odd (counting from 0)
-
- if (i == 0) { // first tile
- piece = 0;
- } else if (i == bridge_len - 1) { // last tile
- piece = 1;
- } else if (i == odd_middle_part) { // we are on the middle of odd bridge: #5 on even pos, #4 on odd
- piece = 5 - (i % 2);
- } else {
- // generate #2 and #3 in turns [i%2==0], after the middle of odd bridge
- // this sequence swaps [... XOR (i>odd_middle_part)],
- // for even bridges XOR does not apply as odd_middle_part==bridge_len
- piece = 2 + ((i % 2 == 0) ^ (i > odd_middle_part));
- }
-
- if (transport == TRANSPORT_RAIL) {
- MakeRailBridgeMiddle(tile, bridge_type, piece, direction, railtype);
- } else {
- MakeRoadBridgeMiddle(tile, bridge_type, piece, direction);
- }
- switch (transport_under) {
- case TRANSPORT_RAIL: SetRailUnderBridge(tile, owner_under, rail_under); break;
- case TRANSPORT_ROAD: SetRoadUnderBridge(tile, owner_under); break;
- case TRANSPORT_WATER: SetWaterUnderBridge(tile); break;
- default: SetClearUnderBridge(tile); break;
- }
-
+ SetBridgeMiddle(tile, direction);
MarkTileDirtyByTile(tile);
}
}
@@ -582,7 +552,7 @@ static int32 DoClearTunnel(TileIndex tile, uint32 flags)
return _price.clear_tunnel * (length + 1);
}
-
+#if 0
static uint GetBridgeHeightRamp(TileIndex t)
{
/* Return the height there (the height of the NORTH CORNER)
@@ -590,6 +560,7 @@ static uint GetBridgeHeightRamp(TileIndex t)
* the z coordinate is 1 height level too low. Compensate for that */
return TilePixelHeight(t) + (GetTileSlope(t, NULL) == SLOPE_WSE ? TILE_HEIGHT : 0);
}
+#endif
static int32 DoClearBridge(TileIndex tile, uint32 flags)
@@ -597,47 +568,10 @@ static int32 DoClearBridge(TileIndex tile, uint32 flags)
DiagDirection direction;
TileIndexDiff delta;
TileIndex endtile;
- Vehicle *v;
Town *t;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
- if (IsBridgeMiddle(tile)) {
- if (IsTransportUnderBridge(tile)) {
- /* delete transport route under the bridge */
- int32 cost;
-
- // check if we own the tile below the bridge..
- if (_current_player != OWNER_WATER && (!CheckTileOwnership(tile) || !EnsureNoVehicleOnGround(tile)))
- return CMD_ERROR;
-
- if (GetTransportTypeUnderBridge(tile) == TRANSPORT_RAIL) {
- cost = _price.remove_rail;
- } else {
- cost = _price.remove_road * 2;
- }
-
- if (flags & DC_EXEC) {
- SetClearUnderBridge(tile);
- MarkTileDirtyByTile(tile);
- }
- return cost;
- } else if (IsWaterUnderBridge(tile) && TilePixelHeight(tile) != 0) {
- /* delete canal under bridge */
-
- // check for vehicles under bridge
- if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
-
- if (flags & DC_EXEC) {
- SetClearUnderBridge(tile);
- MarkTileDirtyByTile(tile);
- }
- return _price.clear_water;
- }
-
- tile = GetSouthernBridgeEnd(tile);
- }
-
// floods, scenario editor can always destroy bridges
if (_current_player != OWNER_WATER && _game_mode != GM_EDITOR && !CheckTileOwnership(tile)) {
if (!(_patches.extra_dynamite || _cheats.magic_bulldozer.value) || !IsTileOwner(tile, OWNER_TOWN))
@@ -651,18 +585,6 @@ static int32 DoClearBridge(TileIndex tile, uint32 flags)
direction = GetBridgeRampDirection(tile);
delta = TileOffsByDir(direction);
- /* Make sure there's no vehicle on the bridge
- Omit tile and endtile, since these are already checked, thus solving the problem
- of bridges over water, or higher bridges, where z is not increased, eg level bridge
- */
- /* Bridges on slopes might have their Z-value offset..correct this */
- v = FindVehicleBetween(
- tile + delta,
- endtile - delta,
- GetBridgeHeightRamp(tile) + TILE_HEIGHT
- );
- if (v != NULL) return_cmd_error(VehicleInTheWayErrMsg(v));
-
t = ClosestTownFromTile(tile, (uint)-1); //needed for town rating penalty
// check if you're allowed to remove the bridge owned by a town.
// removal allowal depends on difficulty settings
@@ -681,26 +603,8 @@ static int32 DoClearBridge(TileIndex tile, uint32 flags)
DoClearSquare(tile);
DoClearSquare(endtile);
for (c = tile + delta; c != endtile; c += delta) {
- if (IsTransportUnderBridge(c)) {
- if (GetTransportTypeUnderBridge(c) == TRANSPORT_RAIL) {
- MakeRailNormal(c, GetTileOwner(c), GetRailBitsUnderBridge(c), GetRailType(c));
- } else {
- uint town = IsTileOwner(c, OWNER_TOWN) ? ClosestTownFromTile(c, (uint)-1)->index : 0;
- MakeRoadNormal(c, GetTileOwner(c), GetRoadBitsUnderBridge(c), town);
- }
- MarkTileDirtyByTile(c);
- } else {
- if (IsClearUnderBridge(c)) {
- DoClearSquare(c);
- } else {
- if (GetTileSlope(c, NULL) == SLOPE_FLAT) {
- MakeWater(c);
- } else {
- MakeShore(c);
- }
- MarkTileDirtyByTile(c);
- }
- }
+ ClearBridgeMiddle(c);
+ MarkTileDirtyByTile(c);
}
UpdateSignalsOnSegment(tile, ReverseDiagDir(direction));
@@ -753,29 +657,7 @@ int32 DoConvertTunnelBridgeRail(TileIndex tile, RailType totype, bool exec)
YapfNotifyTrackLayoutChange(endtile, endtrack);
}
return (length + 1) * (_price.build_rail >> 1);
- } else if (IsBridge(tile) &&
- IsBridgeMiddle(tile) &&
- IsTransportUnderBridge(tile) &&
- GetTransportTypeUnderBridge(tile) == TRANSPORT_RAIL) {
- // only check for train under bridge
- if (!CheckTileOwnership(tile) || !EnsureNoVehicleOnGround(tile))
- return CMD_ERROR;
-
- if (GetRailType(tile) == totype) return CMD_ERROR;
-
- if (exec) {
- TrackBits tracks;
- SetRailType(tile, totype);
- MarkTileDirtyByTile(tile);
-
- // notify YAPF about the track layout change
- for (tracks = GetRailBitsUnderBridge(tile); tracks != TRACK_BIT_NONE; tracks = KILL_FIRST_BIT(tracks))
- YapfNotifyTrackLayoutChange(tile, FIND_FIRST_BIT(tracks));
- }
- return _price.build_rail >> 1;
- } else if (IsBridge(tile) && IsBridgeRamp(tile) && GetBridgeTransportType(tile) == TRANSPORT_RAIL) {
- TileIndexDiff delta;
- int32 cost;
+ } else if (IsBridge(tile) && GetBridgeTransportType(tile) == TRANSPORT_RAIL) {
uint z = TilePixelHeight(tile);
z += TILE_HEIGHT;
@@ -796,53 +678,29 @@ int32 DoConvertTunnelBridgeRail(TileIndex tile, RailType totype, bool exec)
if (GetRailType(tile) == totype) return CMD_ERROR;
if (exec) {
- Track track, endtrack;
+ TileIndexDiff delta;
+
SetRailType(tile, totype);
SetRailType(endtile, totype);
MarkTileDirtyByTile(tile);
MarkTileDirtyByTile(endtile);
- // notify YAPF about the track layout change
- track = TrackdirToTrack(DiagdirToDiagTrackdir(GetBridgeRampDirection(tile)));
- endtrack = TrackdirToTrack(DiagdirToDiagTrackdir(GetBridgeRampDirection(endtile)));
- YapfNotifyTrackLayoutChange(tile, track);
- YapfNotifyTrackLayoutChange(endtile, endtrack);
- }
- cost = 2 * (_price.build_rail >> 1);
- delta = TileOffsByDir(GetBridgeRampDirection(tile));
- for (tile += delta; tile != endtile; tile += delta) {
- if (exec) {
- SetRailTypeOnBridge(tile, totype);
- MarkTileDirtyByTile(tile);
+ delta = TileOffsByDir(GetBridgeRampDirection(tile));
+ for (tile += delta; tile != endtile; tile += delta) {
+ MarkTileDirtyByTile(tile); // TODO encapsulate this into a function
}
- cost += _price.build_rail >> 1;
}
- return cost;
+ return (DistanceManhattan(tile, endtile) + 1) * (_price.build_rail >> 1);
} else
return CMD_ERROR;
}
-// fast routine for getting the height of a middle bridge tile. 'tile' MUST be a middle bridge tile.
-uint GetBridgeHeight(TileIndex t)
-{
- return GetBridgeHeightRamp(GetSouthernBridgeEnd(t));
-}
-
-static const byte _bridge_foundations[2][16] = {
-// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
- {0,16,18,3,20,5,0,7,22,0,10,11,12,13,14},
- {0,15,17,0,19,5,6,7,21,9,10,11, 0,13,14},
-};
-
-extern const byte _road_sloped_sprites[14];
-
-static void DrawBridgePillars(PalSpriteID image, const TileInfo *ti, int x, int y, int z)
+static void DrawBridgePillars(PalSpriteID image, const TileInfo* ti, Axis axis, uint type, int x, int y, int z)
{
if (image != 0) {
- Axis axis = GetBridgeAxis(ti->tile);
- bool drawfarpillar = !HASBIT(GetBridgeFlags(GetBridgeType(ti->tile)), 0);
+ bool drawfarpillar = !HASBIT(GetBridgeFlags(type), 0);
int back_height, front_height;
int i = z;
const byte *p;
@@ -905,17 +763,11 @@ uint GetBridgeFoundation(Slope tileh, Axis axis)
* <li>Bit 2: Set if the bridge head is sloped</li>
* <li>Bit 3 and more: Railtype Specific subset</li>
* </ul>
- * For middle parts:
- * <ul><li>Bits 0-1: need to be 0</li>
- * <li>Bit 2: direction</li>
- * <li>Bit 3 and above: Railtype Specific subset</li>
- * </ul>
* Please note that in this code, "roads" are treated as railtype 1, whilst the real railtypes are 0, 2 and 3
*/
static void DrawTile_TunnelBridge(TileInfo *ti)
{
uint32 image;
- const PalSpriteID *b;
bool ice = _m[ti->tile].m4 & 0x80;
if (IsTunnel(ti->tile)) {
@@ -932,19 +784,12 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
if (GetRailType(ti->tile) == RAILTYPE_ELECTRIC) DrawCatenary(ti);
AddSortableSpriteToDraw(image+1, ti->x + TILE_SIZE - 1, ti->y + TILE_SIZE - 1, 1, 1, 8, (byte)ti->z);
+ DrawBridgeMiddle(ti);
} else if (IsBridge(ti->tile)) { // XXX is this necessary?
int base_offset;
if (GetBridgeTransportType(ti->tile) == TRANSPORT_RAIL) {
- RailType rt;
-
- if (IsBridgeRamp(ti->tile)) {
- rt = GetRailType(ti->tile);
- } else {
- rt = GetRailTypeOnBridge(ti->tile);
- }
-
- base_offset = GetRailTypeInfo(rt)->bridge_offset;
+ base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
assert(base_offset != 8); /* This one is used for roads */
} else {
base_offset = 8;
@@ -953,124 +798,152 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
/* as the lower 3 bits are used for other stuff, make sure they are clear */
assert( (base_offset & 0x07) == 0x00);
- if (IsBridgeRamp(ti->tile)) {
- if (!HASBIT(BRIDGE_NO_FOUNDATION, ti->tileh)) {
- int f = GetBridgeFoundation(ti->tileh, DiagDirToAxis(GetBridgeRampDirection(ti->tile)));
- if (f) DrawFoundation(ti, f);
- }
+ if (!HASBIT(BRIDGE_NO_FOUNDATION, ti->tileh)) {
+ int f = GetBridgeFoundation(ti->tileh, DiagDirToAxis(GetBridgeRampDirection(ti->tile)));
+ if (f) DrawFoundation(ti, f);
+ }
- // HACK Wizardry to convert the bridge ramp direction into a sprite offset
- base_offset += (6 - GetBridgeRampDirection(ti->tile)) % 4;
+ // HACK Wizardry to convert the bridge ramp direction into a sprite offset
+ base_offset += (6 - GetBridgeRampDirection(ti->tile)) % 4;
- if (ti->tileh == SLOPE_FLAT) base_offset += 4; // sloped bridge head
+ if (ti->tileh == SLOPE_FLAT) base_offset += 4; // sloped bridge head
- /* Table number 6 always refers to the bridge heads for any bridge type */
- image = GetBridgeSpriteTable(GetBridgeType(ti->tile), 6)[base_offset];
+ /* Table number 6 always refers to the bridge heads for any bridge type */
+ image = GetBridgeSpriteTable(GetBridgeType(ti->tile), 6)[base_offset];
- if (!ice) {
- DrawClearLandTile(ti, 3);
- } else {
- DrawGroundSprite(SPR_FLAT_SNOWY_TILE + _tileh_to_sprite[ti->tileh]);
- }
+ if (!ice) {
+ DrawClearLandTile(ti, 3);
+ } else {
+ DrawGroundSprite(SPR_FLAT_SNOWY_TILE + _tileh_to_sprite[ti->tileh]);
+ }
- if (GetRailType(ti->tile) == RAILTYPE_ELECTRIC) DrawCatenary(ti);
+ if (GetRailType(ti->tile) == RAILTYPE_ELECTRIC) DrawCatenary(ti);
- // draw ramp
- if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
- AddSortableSpriteToDraw(image, ti->x, ti->y, 16, 16, 7, ti->z);
- } else {
- // bridge middle part.
- Axis axis = GetBridgeAxis(ti->tile);
- uint z;
- int x,y;
-
- if (IsTransportUnderBridge(ti->tile)) {
- uint f = _bridge_foundations[axis][ti->tileh];
-
- if (f != 0) DrawFoundation(ti, f);
-
- if (GetTransportTypeUnderBridge(ti->tile) == TRANSPORT_RAIL) {
- const RailtypeInfo* rti = GetRailTypeInfo(GetRailType(ti->tile));
-
- if (ti->tileh == SLOPE_FLAT) {
- image = (axis == AXIS_X ? SPR_RAIL_TRACK_Y : SPR_RAIL_TRACK_X);
- } else {
- image = SPR_RAIL_TRACK_Y + _track_sloped_sprites[ti->tileh - 1];
- }
- image += rti->total_offset;
- if (ice) image += rti->snow_offset;
- } else {
- if (ti->tileh == SLOPE_FLAT) {
- image = (axis == AXIS_X ? SPR_ROAD_Y : SPR_ROAD_X);
- } else {
- image = _road_sloped_sprites[ti->tileh - 1] + 0x53F;
- }
- if (ice) image += 19;
- }
- DrawGroundSprite(image);
- } else {
- if (IsClearUnderBridge(ti->tile)) {
- image = (ice ? SPR_FLAT_SNOWY_TILE : SPR_FLAT_GRASS_TILE);
- DrawGroundSprite(image + _tileh_to_sprite[ti->tileh]);
- } else {
- if (ti->tileh == SLOPE_FLAT) {
- DrawGroundSprite(SPR_FLAT_WATER_TILE);
- if (ti->z != 0) DrawCanalWater(ti->tile);
- } else {
- DrawGroundSprite(_water_shore_sprites[ti->tileh]);
- }
- }
- }
+ // draw ramp
+ if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
+ AddSortableSpriteToDraw(image, ti->x, ti->y, 16, 16, 7, ti->z);
- if (axis != AXIS_X) base_offset += 4;
+ DrawBridgeMiddle(ti);
+ }
+}
- /* base_offset needs to be 0 due to the structure of the sprite table see table/bridge_land.h */
- assert( (base_offset & 0x03) == 0x00);
- // get bridge sprites
- b = GetBridgeSpriteTable(GetBridgeType(ti->tile), GetBridgePiece(ti->tile)) + base_offset;
- z = GetBridgeHeight(ti->tile) + 5;
+//bridges pieces sequence (middle parts)
+// bridge len 1: 0
+// bridge len 2: 0 1
+// bridge len 3: 0 4 1
+// bridge len 4: 0 2 3 1
+// bridge len 5: 0 2 5 3 1
+// bridge len 6: 0 2 3 2 3 1
+// bridge len 7: 0 2 3 4 2 3 1
+// #0 - always as first, #1 - always as last (if len>1)
+// #2,#3 are to pair in order
+// for odd bridges: #5 is going in the bridge middle if on even position, #4 on odd (counting from 0)
+static uint CalcBridgePiece(uint north, uint south)
+{
+ if (north == 1) {
+ return 0;
+ } else if (south == 1) {
+ return 1;
+ } else if (north < south) {
+ return north & 1 ? 3 : 2;
+ } else if (north > south) {
+ return south & 1 ? 2 : 3;
+ } else {
+ return north & 1 ? 5 : 4;
+ }
+}
- // draw rail or road component
- image = b[0];
- if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
- if (axis == AXIS_X) {
- AddSortableSpriteToDraw(image, ti->x, ti->y, 16, 11, 1, z);
- } else {
- AddSortableSpriteToDraw(image, ti->x, ti->y, 11, 16, 1, z);
- }
+void DrawBridgeMiddle(const TileInfo* ti)
+{
+ const PalSpriteID* b;
+ PalSpriteID image;
+ uint base_offset;
+ TileIndex rampnorth;
+ TileIndex rampsouth;
+ Axis axis;
+ uint piece;
+ uint type;
+ int x;
+ int y;
+ uint z;
+
+ if (!IsBridgeAbove(ti->tile)) return;
+
+ rampnorth = GetNorthernBridgeEnd(ti->tile);
+ rampsouth = GetSouthernBridgeEnd(ti->tile);
+
+ axis = GetBridgeAxis(ti->tile);
+ piece = CalcBridgePiece(
+ DistanceManhattan(ti->tile, rampnorth),
+ DistanceManhattan(ti->tile, rampsouth)
+ );
+ type = GetBridgeType(rampsouth);
- x = ti->x;
- y = ti->y;
- image = b[1];
- if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
+ if (GetBridgeTransportType(rampsouth) == TRANSPORT_RAIL) {
+ base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
+ } else {
+ base_offset = 8;
+ }
- // draw roof, the component of the bridge which is logically between the vehicle and the camera
- if (axis == AXIS_X) {
- y += 12;
- if (image & SPRITE_MASK) AddSortableSpriteToDraw(image, x, y, 16, 1, 0x28, z);
- } else {
- x += 12;
- if (image & SPRITE_MASK) AddSortableSpriteToDraw(image, x, y, 1, 16, 0x28, z);
- }
+ b = base_offset + GetBridgeSpriteTable(type, piece);
+ if (axis != AXIS_X) b += 4;
- if (GetRailType(ti->tile) == RAILTYPE_ELECTRIC || GetRailTypeOnBridge(ti->tile) == RAILTYPE_ELECTRIC) DrawCatenary(ti);
+ x = ti->x;
+ y = ti->y;
+ z = GetBridgeHeight(rampsouth, axis) - 3;
- if (ti->z + 5 == z) {
- // draw poles below for small bridges
- image = b[2];
- if (image != 0) {
- if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
- DrawGroundSpriteAt(image, x, y, z);
- }
- } else if (_patches.bridge_pillars) {
- // draw pillars below for high bridges
- DrawBridgePillars(b[2], ti, x, y, z);
- }
+ image = b[0];
+ if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
+ if (axis == AXIS_X) {
+ AddSortableSpriteToDraw(image, x, y, 16, 11, 1, z);
+ } else {
+ AddSortableSpriteToDraw(image, x, y, 11, 16, 1, z);
+ }
+
+ image = b[1];
+ if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
+
+ // draw roof, the component of the bridge which is logically between the vehicle and the camera
+ if (axis == AXIS_X) {
+ y += 12;
+ if (image & SPRITE_MASK) AddSortableSpriteToDraw(image, x, y, 16, 1, 0x28, z);
+ } else {
+ x += 12;
+ if (image & SPRITE_MASK) AddSortableSpriteToDraw(image, x, y, 1, 16, 0x28, z);
+ }
+
+ if (GetRailType(rampsouth) == RAILTYPE_ELECTRIC) DrawCatenary(ti);
+
+ if (ti->z + 5 == z) {
+ // draw poles below for small bridges
+ image = b[2];
+ if (image != 0) {
+ if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
+ DrawGroundSpriteAt(image, x, y, z);
}
+ } else if (_patches.bridge_pillars) {
+ // draw pillars below for high bridges
+ DrawBridgePillars(b[2], ti, axis, type, x, y, z);
}
}
+
+uint SetSpeedLimitOnBridge(Vehicle *v)
+{
+ uint bridge_speed;
+ if (v->vehstatus & VS_HIDDEN) return v->max_speed; /* in tunnel */
+
+ bridge_speed = _bridge[GetBridgeType(v->tile)].speed;
+
+ if (v->type == VEH_Road) bridge_speed *= 2; /* XXX give vehicles proper speeds */
+
+ if (v->cur_speed > bridge_speed) v->cur_speed = bridge_speed;
+ return bridge_speed;
+}
+
+
+
static uint GetSlopeZ_TunnelBridge(const TileInfo* ti)
{
TileIndex tile = ti->tile;
@@ -1085,44 +958,30 @@ static uint GetSlopeZ_TunnelBridge(const TileInfo* ti)
// In the tunnel entrance?
if (5 <= pos && pos <= 10) return z;
} else {
- if (IsBridgeRamp(tile)) {
- DiagDirection dir = GetBridgeRampDirection(tile);
- uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
-
- // On the bridge ramp?
- if (5 <= pos && pos <= 10) {
- uint delta;
-
- if (HASBIT(BRIDGE_HORZ_RAMP, tileh)) return z + TILE_HEIGHT;
-
- if (HASBIT(BRIDGE_FULL_LEVELED_FOUNDATION, tileh)) z += TILE_HEIGHT;
- switch (dir) {
- default:
- case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
- case DIAGDIR_SE: delta = y / 2; break;
- case DIAGDIR_SW: delta = x / 2; break;
- case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
- }
- return z + 1 + delta;
- } else {
- uint f = GetBridgeFoundation(tileh, DiagDirToAxis(dir));
-
- if (f != 0) {
- if (f < 15) return z + TILE_HEIGHT;
- tileh = _inclined_tileh[f - 15];
- }
+ DiagDirection dir = GetBridgeRampDirection(tile);
+ uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
+
+ // On the bridge ramp?
+ if (5 <= pos && pos <= 10) {
+ uint delta;
+
+ if (HASBIT(BRIDGE_HORZ_RAMP, tileh)) return z + TILE_HEIGHT;
+
+ if (HASBIT(BRIDGE_FULL_LEVELED_FOUNDATION, tileh)) z += TILE_HEIGHT;
+ switch (dir) {
+ default:
+ case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
+ case DIAGDIR_SE: delta = y / 2; break;
+ case DIAGDIR_SW: delta = x / 2; break;
+ case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
}
+ return z + 1 + delta;
} else {
- // HACK on the bridge?
- if (_get_z_hint >= z + TILE_HEIGHT + (tileh == SLOPE_FLAT ? 0 : TILE_HEIGHT)) return _get_z_hint;
+ uint f = GetBridgeFoundation(tileh, DiagDirToAxis(dir));
- if (IsTransportUnderBridge(tile)) {
- uint f = _bridge_foundations[GetBridgeAxis(tile)][tileh];
-
- if (f != 0) {
- if (f < 15) return z + TILE_HEIGHT;
- tileh = _inclined_tileh[f - 15];
- }
+ if (f != 0) {
+ if (f < 15) return z + TILE_HEIGHT;
+ tileh = _inclined_tileh[f - 15];
}
}
}
@@ -1181,9 +1040,6 @@ static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
STR_5017_RAILROAD_TUNNEL : STR_5018_ROAD_TUNNEL;
} else {
td->str = _bridge_tile_str[GetBridgeTransportType(tile) << 4 | GetBridgeType(tile)];
-
- // the owner is stored at the end of the bridge
- if (IsBridgeMiddle(tile)) tile = GetSouthernBridgeEnd(tile);
}
td->owner = GetTileOwner(tile);
}
@@ -1218,10 +1074,6 @@ static void TileLoop_TunnelBridge(TileIndex tile)
}
break;
}
-
- if (IsBridge(tile) && IsBridgeMiddle(tile) && IsWaterUnderBridge(tile)) {
- TileLoop_Water(tile);
- }
}
static void ClickTile_TunnelBridge(TileIndex tile)
@@ -1232,37 +1084,13 @@ static void ClickTile_TunnelBridge(TileIndex tile)
static uint32 GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode)
{
- uint32 result;
-
if (IsTunnel(tile)) {
if (GetTunnelTransportType(tile) == mode) {
return DiagDirToAxis(GetTunnelDirection(tile)) == AXIS_X ? 0x101 : 0x202;
}
} else if (IsBridge(tile)) { // XXX is this necessary?
- if (IsBridgeRamp(tile)) {
- if (GetBridgeTransportType(tile) != mode) return 0;
- return (DiagDirToAxis(GetBridgeRampDirection(tile)) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y) * 0x101;
- } else {
- result = 0;
- if (GetBridgeTransportType(tile) == mode) {
- result = (GetBridgeAxis(tile) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y) * 0x101;
- }
- if (IsTransportUnderBridge(tile)) {
- if (GetTransportTypeUnderBridge(tile) != mode) return result;
- } else {
- if (IsClearUnderBridge(tile)) {
- return result;
- } else {
- if (mode != TRANSPORT_WATER) return result;
- }
- }
- /* If we've not returned yet, there is a compatible
- * transport or water beneath, so we can add it to
- * result */
- /* Why is this xor'd ? Can't it just be or'd? */
- result ^= (GetBridgeAxis(tile) == AXIS_X ? 0x202 : 0x101);
- }
- return result;
+ if (GetBridgeTransportType(tile) != mode) return 0;
+ return (DiagDirToAxis(GetBridgeRampDirection(tile)) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y) * 0x101;
} else {
assert(0); /* This should never occur */
}
@@ -1276,16 +1104,7 @@ static void ChangeTileOwner_TunnelBridge(TileIndex tile, PlayerID old_player, Pl
if (new_player != OWNER_SPECTATOR) {
SetTileOwner(tile, new_player);
} else {
- if (IsBridge(tile) && IsBridgeMiddle(tile) && IsTransportUnderBridge(tile)) {
- // the stuff BELOW the middle part is owned by the deleted player.
- if (GetTransportTypeUnderBridge(tile) == TRANSPORT_RAIL) {
- SetClearUnderBridge(tile);
- } else {
- SetTileOwner(tile, OWNER_NONE);
- }
- } else {
- DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
- }
+ DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
}
}
@@ -1305,14 +1124,15 @@ static const byte _tunnel_fractcoord_7[4] = {0x52, 0x85, 0x96, 0x49};
static uint32 VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
{
+ int z = GetSlopeZ(x, y) - v->z_pos;
+
+ if (myabs(z) > 2) return 8;
+
if (IsTunnel(tile)) {
- int z = GetSlopeZ(x, y) - v->z_pos;
byte fc;
DiagDirection dir;
DiagDirection vdir;
- if (myabs(z) > 2) return 8;
-
if (v->type == VEH_Train) {
fc = (x & 0xF) + (y << 4);
@@ -1373,30 +1193,53 @@ static uint32 VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y
}
}
} else if (IsBridge(tile)) { // XXX is this necessary?
+ DiagDirection dir;
+
if (v->type == VEH_Road || (v->type == VEH_Train && IsFrontEngine(v))) {
- if (IsBridgeRamp(tile) || v->z_pos > GetTileMaxZ(tile)) {
- /* modify speed of vehicle */
- uint16 spd = _bridge[GetBridgeType(tile)].speed;
- if (v->type == VEH_Road) spd *= 2;
- if (v->cur_speed > spd) v->cur_speed = spd;
+ /* modify speed of vehicle */
+ uint16 spd = _bridge[GetBridgeType(tile)].speed;
+
+ if (v->type == VEH_Road) spd *= 2;
+ if (v->cur_speed > spd) v->cur_speed = spd;
+ }
+
+ dir = GetBridgeRampDirection(tile);
+ if (DirToDiagDir(v->direction) == dir) {
+ switch (dir) {
+ default:
+ case DIAGDIR_NE: if ((x & 0xF) != 0) return 0; break;
+ case DIAGDIR_SE: if ((y & 0xF) != TILE_SIZE - 1) return 0; break;
+ case DIAGDIR_SW: if ((x & 0xF) != TILE_SIZE - 1) return 0; break;
+ case DIAGDIR_NW: if ((y & 0xF) != 0) return 0; break;
}
+ if (v->type == VEH_Train) {
+ v->u.rail.track = 0x40;
+ CLRBIT(v->u.rail.flags, VRF_GOINGUP);
+ CLRBIT(v->u.rail.flags, VRF_GOINGDOWN);
+ } else {
+ v->u.road.state = 0xFF;
+ }
+ return 4;
+ } else if (DirToDiagDir(v->direction) == ReverseDiagDir(dir)) {
+ v->tile = tile;
+ if (v->type == VEH_Train) {
+ if (v->u.rail.track == 0x40) {
+ v->u.rail.track = (DiagDirToAxis(dir) == AXIS_X ? 1 : 2);
+ return 4;
+ }
+ } else {
+ if (v->u.road.state == 0xFF) {
+ v->u.road.state = _road_exit_tunnel_state[dir];
+ v->u.road.frame = 0;
+ return 4;
+ }
+ }
+ return 0;
}
}
return 0;
}
-TileIndex GetVehicleOutOfTunnelTile(const Vehicle *v)
-{
- TileIndex tile;
- TileIndexDiff delta = (v->direction & 2) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
- byte z = v->z_pos;
-
- for (tile = v->tile;; tile += delta) {
- if (IsTunnelTile(tile) && GetTileZ(tile) == z) break;
- }
- return tile;
-}
-
const TileTypeProcs _tile_type_tunnelbridge_procs = {
DrawTile_TunnelBridge, /* draw_tile_proc */
GetSlopeZ_TunnelBridge, /* get_slope_z_proc */
generated by cgit v1.2.3-54-g00ecf (git 2.44.0) at 2024-07-10 04:45:54 +0000