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openttd/road_cmd.c

1141 lines
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C
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/* $Id$ */
#include "stdafx.h"
#include "openttd.h"
#include "bridge_map.h"
#include "rail_map.h"
#include "road_map.h"
#include "table/sprites.h"
#include "table/strings.h"
#include "functions.h"
#include "map.h"
#include "tile.h"
#include "town_map.h"
#include "vehicle.h"
#include "viewport.h"
#include "command.h"
#include "player.h"
#include "town.h"
#include "gfx.h"
#include "sound.h"
#include "depot.h"
void RoadVehEnterDepot(Vehicle *v);
static bool CheckAllowRemoveRoad(TileIndex tile, RoadBits remove, bool* edge_road)
{
RoadBits present;
RoadBits n;
byte owner;
*edge_road = true;
if (_game_mode == GM_EDITOR) return true;
// Only do the special processing for actual players.
if (_current_player >= MAX_PLAYERS) return true;
if (IsTileType(tile, MP_STREET) && IsLevelCrossing(tile)) {
owner = GetCrossingRoadOwner(tile);
} else {
owner = GetTileOwner(tile);
}
// Only do the special processing if the road is owned
// by a town
if (owner != OWNER_TOWN) {
return owner == OWNER_NONE || CheckOwnership(owner);
}
if (_cheats.magic_bulldozer.value) return true;
// Get a bitmask of which neighbouring roads has a tile
n = 0;
present = GetAnyRoadBits(tile);
if (present & ROAD_NE && GetAnyRoadBits(TILE_ADDXY(tile,-1, 0)) & ROAD_SW) n |= ROAD_NE;
if (present & ROAD_SE && GetAnyRoadBits(TILE_ADDXY(tile, 0, 1)) & ROAD_NW) n |= ROAD_SE;
if (present & ROAD_SW && GetAnyRoadBits(TILE_ADDXY(tile, 1, 0)) & ROAD_NE) n |= ROAD_SW;
if (present & ROAD_NW && GetAnyRoadBits(TILE_ADDXY(tile, 0,-1)) & ROAD_SE) n |= ROAD_NW;
// If 0 or 1 bits are set in n, or if no bits that match the bits to remove,
// then allow it
if ((n & (n - 1)) != 0 && (n & remove) != 0) {
Town *t;
*edge_road = false;
// you can remove all kind of roads with extra dynamite
if (_patches.extra_dynamite) return true;
t = ClosestTownFromTile(tile, _patches.dist_local_authority);
SetDParam(0, t->index);
_error_message = STR_2009_LOCAL_AUTHORITY_REFUSES;
return false;
}
return true;
}
/** Delete a piece of road.
* @param x,y tile coordinates for road construction
* @param p1 road piece flags
* @param p2 unused
*/
int32 CmdRemoveRoad(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
// cost for removing inner/edge -roads
static const uint16 road_remove_cost[2] = {50, 18};
int32 cost;
TileIndex tile;
PlayerID owner;
Town *t;
/* true if the roadpiece was always removeable,
* false if it was a center piece. Affects town ratings drop */
bool edge_road;
RoadBits pieces;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
/* Road pieces are max 4 bitset values (NE, NW, SE, SW) */
if (p1 >> 4) return CMD_ERROR;
pieces = p1;
tile = TileVirtXY(x, y);
if (!IsTileType(tile, MP_STREET) && !IsTileType(tile, MP_TUNNELBRIDGE)) return CMD_ERROR;
owner = IsLevelCrossing(tile) ? GetCrossingRoadOwner(tile) : GetTileOwner(tile);
if (owner == OWNER_TOWN && _game_mode != GM_EDITOR) {
if (IsTileType(tile, MP_TUNNELBRIDGE)) { // index of town is not saved for bridge (no space)
t = ClosestTownFromTile(tile, _patches.dist_local_authority);
} else {
t = GetTownByTile(tile);
}
} else {
t = NULL;
}
if (!CheckAllowRemoveRoad(tile, pieces, &edge_road)) return CMD_ERROR;
switch (GetTileType(tile)) {
case MP_TUNNELBRIDGE:
if (!EnsureNoVehicleZ(tile, TilePixelHeight(tile))) return CMD_ERROR;
if (!IsBridge(tile) ||
!IsBridgeMiddle(tile) ||
!IsTransportUnderBridge(tile) ||
GetTransportTypeUnderBridge(tile) != TRANSPORT_ROAD ||
(pieces & ComplementRoadBits(GetRoadBitsUnderBridge(tile))) != 0) {
return CMD_ERROR;
}
cost = _price.remove_road * 2;
if (flags & DC_EXEC) {
ChangeTownRating(t, -road_remove_cost[(byte)edge_road], RATING_ROAD_MINIMUM);
SetClearUnderBridge(tile);
MarkTileDirtyByTile(tile);
}
return cost;
case MP_STREET:
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
// check if you're allowed to remove the street owned by a town
// removal allowance depends on difficulty setting
if (!CheckforTownRating(flags, t, ROAD_REMOVE)) return CMD_ERROR;
switch (GetRoadType(tile)) {
case ROAD_NORMAL: {
RoadBits present = GetRoadBits(tile);
RoadBits c = pieces;
if (GetTileSlope(tile, NULL) != 0 &&
(present == ROAD_Y || present == ROAD_X)) {
c |= (c & 0xC) >> 2;
c |= (c & 0x3) << 2;
}
// limit the bits to delete to the existing bits.
c &= present;
if (c == 0) return CMD_ERROR;
// calculate the cost
cost = 0;
if (c & ROAD_NW) cost += _price.remove_road;
if (c & ROAD_SW) cost += _price.remove_road;
if (c & ROAD_SE) cost += _price.remove_road;
if (c & ROAD_NE) cost += _price.remove_road;
if (flags & DC_EXEC) {
ChangeTownRating(t, -road_remove_cost[(byte)edge_road], RATING_ROAD_MINIMUM);
present ^= c;
if (present == 0) {
DoClearSquare(tile);
} else {
SetRoadBits(tile, present);
MarkTileDirtyByTile(tile);
}
}
return cost;
}
case ROAD_CROSSING: {
if (pieces & ComplementRoadBits(GetCrossingRoadBits(tile))) {
return CMD_ERROR;
}
cost = _price.remove_road * 2;
if (flags & DC_EXEC) {
ChangeTownRating(t, -road_remove_cost[(byte)edge_road], RATING_ROAD_MINIMUM);
MakeRailNormal(tile, GetTileOwner(tile), GetCrossingRailBits(tile), GetRailTypeCrossing(tile));
MarkTileDirtyByTile(tile);
}
return cost;
}
default:
case ROAD_DEPOT:
return CMD_ERROR;
}
default: return CMD_ERROR;
}
}
static const RoadBits _valid_tileh_slopes_road[][15] = {
// set of normal ones
{
ROAD_ALL, 0, 0,
ROAD_X, 0, 0, // 3, 4, 5
ROAD_Y, 0, 0,
ROAD_Y, 0, 0, // 9, 10, 11
ROAD_X, 0, 0
},
// allowed road for an evenly raised platform
{
0,
ROAD_SW | ROAD_NW,
ROAD_SW | ROAD_SE,
ROAD_Y | ROAD_SW,
ROAD_SE | ROAD_NE, // 4
ROAD_ALL,
ROAD_X | ROAD_SE,
ROAD_ALL,
ROAD_NW | ROAD_NE, // 8
ROAD_X | ROAD_NW,
ROAD_ALL,
ROAD_ALL,
ROAD_Y | ROAD_NE, // 12
ROAD_ALL,
ROAD_ALL
},
};
static uint32 CheckRoadSlope(int tileh, RoadBits* pieces, RoadBits existing)
{
if (!IsSteepTileh(tileh)) {
RoadBits road_bits = *pieces | existing;
// no special foundation
if ((~_valid_tileh_slopes_road[0][tileh] & road_bits) == 0) {
// force that all bits are set when we have slopes
if (tileh != 0) *pieces |= _valid_tileh_slopes_road[0][tileh];
return 0; // no extra cost
}
// foundation is used. Whole tile is leveled up
if ((~_valid_tileh_slopes_road[1][tileh] & road_bits) == 0) {
return existing ? 0 : _price.terraform;
}
// partly leveled up tile, only if there's no road on that tile
if (existing == 0 && (tileh == 1 || tileh == 2 || tileh == 4 || tileh == 8)) {
// force full pieces.
*pieces |= (*pieces & 0xC) >> 2;
*pieces |= (*pieces & 0x3) << 2;
return (*pieces == ROAD_X || *pieces == ROAD_Y) ? _price.terraform : CMD_ERROR;
}
}
return CMD_ERROR;
}
/** Build a piece of road.
* @param x,y tile coordinates for road construction
* @param p1 road piece flags
* @param p2 the town that is building the road (0 if not applicable)
*/
int32 CmdBuildRoad(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
TileInfo ti;
int32 cost;
RoadBits existing = 0;
RoadBits pieces;
TileIndex tile;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
/* Road pieces are max 4 bitset values (NE, NW, SE, SW) and town can only be non-zero
* if a non-player is building the road */
if ((p1 >> 4) || (_current_player < MAX_PLAYERS && p2 != 0) || !IsTownIndex(p2)) return CMD_ERROR;
pieces = p1;
FindLandscapeHeight(&ti, x, y);
tile = ti.tile;
// allow building road under bridge
if (ti.type != MP_TUNNELBRIDGE && !EnsureNoVehicle(tile)) return CMD_ERROR;
switch (ti.type) {
case MP_STREET:
switch (GetRoadType(tile)) {
case ROAD_NORMAL:
existing = GetRoadBits(tile);
if ((existing & pieces) == pieces) {
return_cmd_error(STR_1007_ALREADY_BUILT);
}
break;
case ROAD_CROSSING:
if (pieces != GetCrossingRoadBits(tile)) { // XXX is this correct?
return_cmd_error(STR_1007_ALREADY_BUILT);
}
goto do_clear;
default:
case ROAD_DEPOT:
goto do_clear;
}
break;
case MP_RAILWAY: {
Axis roaddir;
if (IsSteepTileh(ti.tileh)) { // very steep tile
return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
}
#define M(x) (1 << (x))
/* Level crossings may only be built on these slopes */
if (!HASBIT(M(14) | M(13) | M(11) | M(10) | M(7) | M(5) | M(0), ti.tileh)) {
return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
}
#undef M
if (GetRailTileType(tile) != RAIL_TYPE_NORMAL) goto do_clear;
switch (GetTrackBits(tile)) {
case TRACK_BIT_X:
if (pieces & ROAD_X) goto do_clear;
roaddir = AXIS_Y;
break;
case TRACK_BIT_Y:
if (pieces & ROAD_Y) goto do_clear;
roaddir = AXIS_X;
break;
default: goto do_clear;
}
if (flags & DC_EXEC) {
MakeRoadCrossing(tile, _current_player, GetTileOwner(tile), roaddir, GetRailType(tile), p2);
MarkTileDirtyByTile(tile);
}
return _price.build_road * 2;
}
case MP_TUNNELBRIDGE:
/* check for flat land */
if (IsSteepTileh(ti.tileh)) { // very steep tile
return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
}
if (!IsBridge(tile) || !IsBridgeMiddle(tile)) goto do_clear;
/* only allow roads pertendicular to bridge */
if ((pieces & (GetBridgeAxis(tile) == AXIS_X ? ROAD_X : ROAD_Y)) != 0) {
goto do_clear;
}
/* check if clear land under bridge */
if (IsTransportUnderBridge(tile)) {
switch (GetTransportTypeUnderBridge(tile)) {
case TRANSPORT_ROAD: return_cmd_error(STR_1007_ALREADY_BUILT);
default: return_cmd_error(STR_1008_MUST_REMOVE_RAILROAD_TRACK);
}
} else {
if (IsWaterUnderBridge(tile)) {
return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
}
}
/* all checked, can build road now! */
cost = _price.build_road * 2;
if (flags & DC_EXEC) {
SetRoadUnderBridge(tile, _current_player);
MarkTileDirtyByTile(tile);
}
return cost;
default:
do_clear:;
if (CmdFailed(DoCommandByTile(tile, 0, 0, flags & ~DC_EXEC, CMD_LANDSCAPE_CLEAR)))
return CMD_ERROR;
}
cost = CheckRoadSlope(ti.tileh, &pieces, existing);
if (CmdFailed(cost)) return_cmd_error(STR_1800_LAND_SLOPED_IN_WRONG_DIRECTION);
if (cost && (!_patches.build_on_slopes || _is_old_ai_player))
return CMD_ERROR;
if (ti.type == MP_STREET && GetRoadType(tile) == ROAD_NORMAL) {
// Don't put the pieces that already exist
pieces &= ComplementRoadBits(existing);
} else {
cost += DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
}
if (pieces & ROAD_NW) cost += _price.build_road;
if (pieces & ROAD_SW) cost += _price.build_road;
if (pieces & ROAD_SE) cost += _price.build_road;
if (pieces & ROAD_NE) cost += _price.build_road;
if (flags & DC_EXEC) {
if (ti.type == MP_STREET) {
SetRoadBits(tile, existing | pieces);
} else {
MakeRoadNormal(tile, _current_player, pieces, p2);
}
MarkTileDirtyByTile(tile);
}
return cost;
}
int32 DoConvertStreetRail(TileIndex tile, uint totype, bool exec)
{
// not a railroad crossing?
if (!IsLevelCrossing(tile)) return CMD_ERROR;
// not owned by me?
if (!CheckTileOwnership(tile) || !EnsureNoVehicle(tile)) return CMD_ERROR;
if (GetRailTypeCrossing(tile) == totype) return CMD_ERROR;
if (exec) {
SetRailTypeCrossing(tile, totype);
MarkTileDirtyByTile(tile);
}
return _price.build_rail >> 1;
}
/** Build a long piece of road.
* @param x,y end tile of drag
* @param p1 start tile of drag
* @param p2 various bitstuffed elements
* - p2 = (bit 0) - start tile starts in the 2nd half of tile (p2 & 1)
* - p2 = (bit 1) - end tile starts in the 2nd half of tile (p2 & 2)
* - p2 = (bit 2) - direction: 0 = along x-axis, 1 = along y-axis (p2 & 4)
*/
int32 CmdBuildLongRoad(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
TileIndex start_tile, end_tile, tile;
int32 cost, ret;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
if (p1 >= MapSize()) return CMD_ERROR;
start_tile = p1;
end_tile = TileVirtXY(x, y);
/* Only drag in X or Y direction dictated by the direction variable */
if (!HASBIT(p2, 2) && TileY(start_tile) != TileY(end_tile)) return CMD_ERROR; // x-axis
if (HASBIT(p2, 2) && TileX(start_tile) != TileX(end_tile)) return CMD_ERROR; // y-axis
/* Swap start and ending tile, also the half-tile drag var (bit 0 and 1) */
if (start_tile > end_tile || (start_tile == end_tile && HASBIT(p2, 0))) {
TileIndex t = start_tile;
start_tile = end_tile;
end_tile = t;
p2 ^= IS_INT_INSIDE(p2&3, 1, 3) ? 3 : 0;
}
cost = 0;
tile = start_tile;
// Start tile is the small number.
for (;;) {
RoadBits bits = HASBIT(p2, 2) ? ROAD_Y : ROAD_X;
if (tile == end_tile && !HASBIT(p2, 1)) bits &= ROAD_NW | ROAD_NE;
if (tile == start_tile && HASBIT(p2, 0)) bits &= ROAD_SE | ROAD_SW;
ret = DoCommandByTile(tile, bits, 0, flags, CMD_BUILD_ROAD);
if (CmdFailed(ret)) {
if (_error_message != STR_1007_ALREADY_BUILT) return CMD_ERROR;
} else {
cost += ret;
}
if (tile == end_tile) break;
tile += HASBIT(p2, 2) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
}
return (cost == 0) ? CMD_ERROR : cost;
}
/** Remove a long piece of road.
* @param x,y end tile of drag
* @param p1 start tile of drag
* @param p2 various bitstuffed elements
* - p2 = (bit 0) - start tile starts in the 2nd half of tile (p2 & 1)
* - p2 = (bit 1) - end tile starts in the 2nd half of tile (p2 & 2)
* - p2 = (bit 2) - direction: 0 = along x-axis, 1 = along y-axis (p2 & 4)
*/
int32 CmdRemoveLongRoad(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
TileIndex start_tile, end_tile, tile;
int32 cost, ret;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
if (p1 >= MapSize()) return CMD_ERROR;
start_tile = p1;
end_tile = TileVirtXY(x, y);
/* Only drag in X or Y direction dictated by the direction variable */
if (!HASBIT(p2, 2) && TileY(start_tile) != TileY(end_tile)) return CMD_ERROR; // x-axis
if (HASBIT(p2, 2) && TileX(start_tile) != TileX(end_tile)) return CMD_ERROR; // y-axis
/* Swap start and ending tile, also the half-tile drag var (bit 0 and 1) */
if (start_tile > end_tile || (start_tile == end_tile && HASBIT(p2, 0))) {
TileIndex t = start_tile;
start_tile = end_tile;
end_tile = t;
p2 ^= IS_INT_INSIDE(p2 & 3, 1, 3) ? 3 : 0;
}
cost = 0;
tile = start_tile;
// Start tile is the small number.
for (;;) {
RoadBits bits = HASBIT(p2, 2) ? ROAD_Y : ROAD_X;
if (tile == end_tile && !HASBIT(p2, 1)) bits &= ROAD_NW | ROAD_NE;
if (tile == start_tile && HASBIT(p2, 0)) bits &= ROAD_SE | ROAD_SW;
// try to remove the halves.
if (bits != 0) {
ret = DoCommandByTile(tile, bits, 0, flags, CMD_REMOVE_ROAD);
if (!CmdFailed(ret)) cost += ret;
}
if (tile == end_tile) break;
tile += HASBIT(p2, 2) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
}
return (cost == 0) ? CMD_ERROR : cost;
}
/** Build a road depot.
* @param x,y tile coordinates where the depot will be built
* @param p1 depot direction (0 through 3), where 0 is NW, 1 is NE, etc.
* @param p2 unused
*
* @todo When checking for the tile slope,
* distingush between "Flat land required" and "land sloped in wrong direction"
*/
int32 CmdBuildRoadDepot(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
int32 cost;
Depot *dep;
TileIndex tile;
uint tileh;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
if (p1 > 3) return CMD_ERROR; // check direction
tile = TileVirtXY(x, y);
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
tileh = GetTileSlope(tile, NULL);
if (tileh != 0 && (
!_patches.build_on_slopes ||
IsSteepTileh(tileh) ||
!CanBuildDepotByTileh(p1, tileh)
)) {
return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
}
cost = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
if (CmdFailed(cost)) return CMD_ERROR;
dep = AllocateDepot();
if (dep == NULL) return CMD_ERROR;
if (flags & DC_EXEC) {
if (IsLocalPlayer()) _last_built_road_depot_tile = tile;
dep->xy = tile;
dep->town_index = ClosestTownFromTile(tile, (uint)-1)->index;
MakeRoadDepot(tile, _current_player, p1);
MarkTileDirtyByTile(tile);
}
return cost + _price.build_road_depot;
}
static int32 RemoveRoadDepot(TileIndex tile, uint32 flags)
{
if (!CheckTileOwnership(tile) && _current_player != OWNER_WATER)
return CMD_ERROR;
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
if (flags & DC_EXEC) DoDeleteDepot(tile);
return _price.remove_road_depot;
}
#define M(x) (1<<(x))
static int32 ClearTile_Road(TileIndex tile, byte flags)
{
switch (GetRoadType(tile)) {
case ROAD_NORMAL: {
RoadBits b = GetRoadBits(tile);
if (!((1 << b) & (M(1)|M(2)|M(4)|M(8))) &&
(!(flags & DC_AI_BUILDING) || !IsTileOwner(tile, OWNER_TOWN)) &&
flags & DC_AUTO) {
return_cmd_error(STR_1801_MUST_REMOVE_ROAD_FIRST);
}
return DoCommandByTile(tile, b, 0, flags, CMD_REMOVE_ROAD);
}
case ROAD_CROSSING: {
int32 ret;
if (flags & DC_AUTO) return_cmd_error(STR_1801_MUST_REMOVE_ROAD_FIRST);
ret = DoCommandByTile(tile, GetCrossingRoadBits(tile), 0, flags, CMD_REMOVE_ROAD);
if (CmdFailed(ret)) return CMD_ERROR;
if (flags & DC_EXEC) {
DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
}
return ret;
}
default:
case ROAD_DEPOT:
if (flags & DC_AUTO) {
return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);
}
return RemoveRoadDepot(tile, flags);
}
}
typedef struct DrawRoadTileStruct {
uint16 image;
byte subcoord_x;
byte subcoord_y;
} DrawRoadTileStruct;
typedef struct DrawRoadSeqStruct {
uint32 image;
byte subcoord_x;
byte subcoord_y;
byte width;
byte height;
} DrawRoadSeqStruct;
#include "table/road_land.h"
uint GetRoadFoundation(uint tileh, RoadBits bits)
{
int i;
// normal level sloped building
if ((~_valid_tileh_slopes_road[1][tileh] & bits) == 0) return tileh;
// inclined sloped building
if ((
(i = 0, tileh == 1) ||
(i += 2, tileh == 2) ||
(i += 2, tileh == 4) ||
(i += 2, tileh == 8)
) && (
( bits == ROAD_X) ||
(i++, bits == ROAD_Y)
)) {
return i + 15;
}
return 0;
}
const byte _road_sloped_sprites[14] = {
0, 0, 2, 0,
0, 1, 0, 0,
3, 0, 0, 0,
0, 0
};
/**
* Draw ground sprite and road pieces
* @param ti TileInfo
* @param road RoadBits to draw
* @param ground_type Ground type
* @param snow Draw snow
* @param flat Draw foundation
*/
static void DrawRoadBits(TileInfo* ti, RoadBits road, byte ground_type, bool snow, bool flat)
{
const DrawRoadTileStruct *drts;
PalSpriteID image = 0;
if (ti->tileh != 0) {
int foundation;
if (flat) {
foundation = ti->tileh;
} else {
foundation = GetRoadFoundation(ti->tileh, road);
}
if (foundation != 0) DrawFoundation(ti, foundation);
// DrawFoundation() modifies ti.
// Default sloped sprites..
if (ti->tileh != 0) image = _road_sloped_sprites[ti->tileh - 1] + 0x53F;
}
if (image == 0) image = _road_tile_sprites_1[road];
if (ground_type == 0) image |= PALETTE_TO_BARE_LAND;
if (snow) {
image += 19;
} else if (ground_type > 1 && ground_type != 6) {
// Pavement tiles.
image -= 19;
}
DrawGroundSprite(image);
// Return if full detail is disabled, or we are zoomed fully out.
if (!(_display_opt & DO_FULL_DETAIL) || _cur_dpi->zoom == 2) return;
if (ground_type >= 6) {
// Road works
DrawGroundSprite(road & ROAD_X ? SPR_EXCAVATION_X : SPR_EXCAVATION_Y);
return;
}
// Draw extra details.
for (drts = _road_display_table[ground_type][road]; drts->image != 0; drts++) {
int x = ti->x | drts->subcoord_x;
int y = ti->y | drts->subcoord_y;
byte z = ti->z;
if (ti->tileh != 0) z = GetSlopeZ(x, y);
AddSortableSpriteToDraw(drts->image, x, y, 2, 2, 0x10, z);
}
}
static void DrawTile_Road(TileInfo *ti)
{
PalSpriteID image;
uint16 m2;
switch (GetRoadType(ti->tile)) {
case ROAD_NORMAL:
DrawRoadBits(ti, GetRoadBits(ti->tile), GB(_m[ti->tile].m4, 4, 3), HASBIT(_m[ti->tile].m4, 7), false);
break;
case ROAD_CROSSING: {
if (ti->tileh != 0) DrawFoundation(ti, ti->tileh);
image = GetRailTypeInfo(GetRailTypeCrossing(ti->tile))->base_sprites.crossing;
if (GetCrossingRoadAxis(ti->tile) == AXIS_X) image++;
if (IsCrossingBarred(ti->tile)) image += 2;
if ( _m[ti->tile].m4 & 0x80) {
image += 8;
} else {
m2 = GB(_m[ti->tile].m4, 4, 3);
if (m2 == 0) image |= PALETTE_TO_BARE_LAND;
if (m2 > 1) image += 4;
}
DrawGroundSprite(image);
break;
}
default:
case ROAD_DEPOT: {
uint32 ormod;
PlayerID player;
const DrawRoadSeqStruct* drss;
if (ti->tileh != 0) DrawFoundation(ti, ti->tileh);
ormod = PALETTE_TO_GREY; //was this a bug/problem?
player = GetTileOwner(ti->tile);
if (player < MAX_PLAYERS) ormod = PLAYER_SPRITE_COLOR(player);
drss = _road_display_datas[GetRoadDepotDirection(ti->tile)];
DrawGroundSprite(drss++->image);
for (; drss->image != 0; drss++) {
uint32 image = drss->image;
if (image & PALETTE_MODIFIER_COLOR) image |= ormod;
if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
AddSortableSpriteToDraw(image, ti->x | drss->subcoord_x,
ti->y | drss->subcoord_y, drss->width, drss->height, 0x14, ti->z
);
}
break;
}
}
}
void DrawRoadDepotSprite(int x, int y, int image)
{
uint32 ormod;
const DrawRoadSeqStruct *dtss;
ormod = PLAYER_SPRITE_COLOR(_local_player);
dtss = _road_display_datas[image];
x += 33;
y += 17;
DrawSprite(dtss++->image, x, y);
for (; dtss->image != 0; dtss++) {
Point pt = RemapCoords(dtss->subcoord_x, dtss->subcoord_y, 0);
image = dtss->image;
if (image & PALETTE_MODIFIER_COLOR) image |= ormod;
DrawSprite(image, x + pt.x, y + pt.y);
}
}
static uint GetSlopeZ_Road(const TileInfo* ti)
{
uint tileh = ti->tileh;
uint z = ti->z;
if (tileh == 0) return z;
if (GetRoadType(ti->tile) == ROAD_NORMAL) {
uint f = GetRoadFoundation(tileh, GetRoadBits(ti->tile));
if (f != 0) {
if (f < 15) return z + 8; // leveled foundation
tileh = _inclined_tileh[f - 15]; // inclined foundation
}
return z + GetPartialZ(ti->x & 0xF, ti->y & 0xF, tileh);
} else {
return z + 8;
}
}
static uint GetSlopeTileh_Road(const TileInfo *ti)
{
if (ti->tileh == 0) return ti->tileh;
if (GetRoadType(ti->tile) == ROAD_NORMAL) {
uint f = GetRoadFoundation(ti->tileh, GetRoadBits(ti->tile));
if (f == 0) return ti->tileh;
if (f < 15) return 0; // leveled foundation
return _inclined_tileh[f - 15]; // inclined foundation
} else {
return 0;
}
}
static void GetAcceptedCargo_Road(TileIndex tile, AcceptedCargo ac)
{
/* not used */
}
static void AnimateTile_Road(TileIndex tile)
{
if (IsLevelCrossing(tile)) MarkTileDirtyByTile(tile);
}
static const byte _town_road_types[5][2] = {
{1,1},
{2,2},
{2,2},
{5,5},
{3,2},
};
static const byte _town_road_types_2[5][2] = {
{1,1},
{2,2},
{3,2},
{3,2},
{3,2},
};
static void TileLoop_Road(TileIndex tile)
{
Town *t;
int grp;
switch (_opt.landscape) {
case LT_HILLY:
if ((_m[tile].m4 & 0x80) != (GetTileZ(tile) > _opt.snow_line ? 0x80 : 0x00)) {
_m[tile].m4 ^= 0x80;
MarkTileDirtyByTile(tile);
}
break;
case LT_DESERT:
if (GetMapExtraBits(tile) == 1 && !(_m[tile].m4 & 0x80)) {
_m[tile].m4 |= 0x80;
MarkTileDirtyByTile(tile);
}
break;
}
if (GetRoadType(tile) == ROAD_DEPOT) return;
if (GB(_m[tile].m4, 4, 3) < 6) {
t = ClosestTownFromTile(tile, (uint)-1);
grp = 0;
if (t != NULL) {
grp = GetTownRadiusGroup(t, tile);
// Show an animation to indicate road work
if (t->road_build_months != 0 &&
!(DistanceManhattan(t->xy, tile) >= 8 && grp == 0) &&
(_m[tile].m5 == ROAD_Y || _m[tile].m5 == ROAD_X)) {
if (GetTileSlope(tile, NULL) == 0 && EnsureNoVehicle(tile) && CHANCE16(1, 20)) {
SB(_m[tile].m4, 4, 3, (GB(_m[tile].m4, 4, 3) <= 1 ? 6 : 7));
SndPlayTileFx(SND_21_JACKHAMMER, tile);
CreateEffectVehicleAbove(
TileX(tile) * 16 + 7,
TileY(tile) * 16 + 7,
0,
EV_BULLDOZER);
MarkTileDirtyByTile(tile);
return;
}
}
}
{
const byte *p = (_opt.landscape == LT_CANDY) ? _town_road_types_2[grp] : _town_road_types[grp];
byte b = GB(_m[tile].m4, 4, 3);
if (b == p[0]) return;
if (b == p[1]) {
b = p[0];
} else if (b == 0) {
b = p[1];
} else {
b = 0;
}
SB(_m[tile].m4, 4, 3, b);
MarkTileDirtyByTile(tile);
}
} else {
// Handle road work
//XXX undocumented
byte b = _m[tile].m4;
//roadworks take place only
//keep roadworks running for 16 loops
//lower 4 bits of map3_hi store the counter now
if ((b & 0xF) != 0xF) {
_m[tile].m4 = b + 1;
return;
}
//roadworks finished
_m[tile].m4 = (GB(b, 4, 3) == 6 ? 1 : 2) << 4;
MarkTileDirtyByTile(tile);
}
}
void ShowRoadDepotWindow(TileIndex tile);
static void ClickTile_Road(TileIndex tile)
{
if (GetRoadType(tile) == ROAD_DEPOT) ShowRoadDepotWindow(tile);
}
static const byte _road_trackbits[16] = {
0x0, 0x0, 0x0, 0x10, 0x0, 0x2, 0x8, 0x1A, 0x0, 0x4, 0x1, 0x15, 0x20, 0x26, 0x29, 0x3F,
};
static uint32 GetTileTrackStatus_Road(TileIndex tile, TransportType mode)
{
switch (mode) {
case TRANSPORT_RAIL:
if (!IsLevelCrossing(tile)) return 0;
return GetCrossingRailBits(tile) * 0x101;
case TRANSPORT_ROAD:
switch (GetRoadType(tile)) {
case ROAD_NORMAL:
return GB(_m[tile].m4, 4, 3) >= 6 ?
0 : _road_trackbits[GetRoadBits(tile)] * 0x101;
case ROAD_CROSSING: {
uint32 r = (GetCrossingRoadAxis(tile) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y) * 0x101;
if (_m[tile].m5 & 4) r *= 0x10001;
return r;
}
default:
case ROAD_DEPOT:
break;
}
break;
default: break;
}
return 0;
}
static const StringID _road_tile_strings[] = {
STR_1814_ROAD,
STR_1814_ROAD,
STR_1814_ROAD,
STR_1815_ROAD_WITH_STREETLIGHTS,
STR_1814_ROAD,
STR_1816_TREE_LINED_ROAD,
STR_1814_ROAD,
STR_1814_ROAD,
};
static void GetTileDesc_Road(TileIndex tile, TileDesc *td)
{
td->owner = GetTileOwner(tile);
switch (GetRoadType(tile)) {
case ROAD_CROSSING: td->str = STR_1818_ROAD_RAIL_LEVEL_CROSSING; break;
case ROAD_DEPOT: td->str = STR_1817_ROAD_VEHICLE_DEPOT; break;
default: td->str = _road_tile_strings[GB(_m[tile].m4, 4, 3)]; break;
}
}
static const byte _roadveh_enter_depot_unk0[4] = {
8, 9, 0, 1
};
static uint32 VehicleEnter_Road(Vehicle *v, TileIndex tile, int x, int y)
{
switch (GetRoadType(tile)) {
case ROAD_CROSSING:
if (v->type == VEH_Train && !IsCrossingBarred(tile)) {
/* train crossing a road */
SndPlayVehicleFx(SND_0E_LEVEL_CROSSING, v);
BarCrossing(tile);
MarkTileDirtyByTile(tile);
}
break;
case ROAD_DEPOT:
if (v->type == VEH_Road && v->u.road.frame == 11) {
if (_roadveh_enter_depot_unk0[GetRoadDepotDirection(tile)] == v->u.road.state) {
RoadVehEnterDepot(v);
return 4;
}
}
break;
default: break;
}
return 0;
}
static void VehicleLeave_Road(Vehicle *v, TileIndex tile, int x, int y)
{
if (IsLevelCrossing(tile) && v->type == VEH_Train && v->next == NULL) {
UnbarCrossing(tile);
MarkTileDirtyByTile(tile);
}
}
static void ChangeTileOwner_Road(TileIndex tile, PlayerID old_player, PlayerID new_player)
{
if (IsLevelCrossing(tile) && GetCrossingRoadOwner(tile) == old_player) {
SetCrossingRoadOwner(tile, new_player == OWNER_SPECTATOR ? OWNER_NONE : new_player);
}
if (!IsTileOwner(tile, old_player)) return;
if (new_player != OWNER_SPECTATOR) {
SetTileOwner(tile, new_player);
} else {
switch (GetRoadType(tile)) {
case ROAD_NORMAL:
SetTileOwner(tile, OWNER_NONE);
break;
case ROAD_CROSSING:
MakeRoadNormal(tile, GetCrossingRoadOwner(tile), GetCrossingRoadBits(tile), GetTownIndex(tile));
break;
default:
case ROAD_DEPOT:
DoCommandByTile(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
break;
}
}
}
void InitializeRoad(void)
{
_last_built_road_depot_tile = 0;
}
const TileTypeProcs _tile_type_road_procs = {
DrawTile_Road, /* draw_tile_proc */
GetSlopeZ_Road, /* get_slope_z_proc */
ClearTile_Road, /* clear_tile_proc */
GetAcceptedCargo_Road, /* get_accepted_cargo_proc */
GetTileDesc_Road, /* get_tile_desc_proc */
GetTileTrackStatus_Road, /* get_tile_track_status_proc */
ClickTile_Road, /* click_tile_proc */
AnimateTile_Road, /* animate_tile_proc */
TileLoop_Road, /* tile_loop_clear */
ChangeTileOwner_Road, /* change_tile_owner_clear */
NULL, /* get_produced_cargo_proc */
VehicleEnter_Road, /* vehicle_enter_tile_proc */
VehicleLeave_Road, /* vehicle_leave_tile_proc */
GetSlopeTileh_Road, /* get_slope_tileh_proc */
};
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