forked from mirror/OpenTTD
(svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
This commit is contained in:
KUDr
442
src/waypoint.cpp
Normal file
442
src/waypoint.cpp
Normal file
@@ -0,0 +1,442 @@
|
||||
/* $Id$ */
|
||||
|
||||
#include "stdafx.h"
|
||||
#include "openttd.h"
|
||||
|
||||
#include "command.h"
|
||||
#include "functions.h"
|
||||
#include "gfx.h"
|
||||
#include "map.h"
|
||||
#include "order.h"
|
||||
#include "rail_map.h"
|
||||
#include "bridge_map.h"
|
||||
#include "saveload.h"
|
||||
#include "station.h"
|
||||
#include "tile.h"
|
||||
#include "town.h"
|
||||
#include "waypoint.h"
|
||||
#include "variables.h"
|
||||
#include "table/strings.h"
|
||||
#include "vehicle.h"
|
||||
#include "yapf/yapf.h"
|
||||
#include "date.h"
|
||||
|
||||
enum {
|
||||
MAX_WAYPOINTS_PER_TOWN = 64,
|
||||
};
|
||||
|
||||
/**
|
||||
* Called if a new block is added to the waypoint-pool
|
||||
*/
|
||||
static void WaypointPoolNewBlock(uint start_item)
|
||||
{
|
||||
Waypoint *wp;
|
||||
|
||||
/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
|
||||
* TODO - This is just a temporary stage, this will be removed. */
|
||||
for (wp = GetWaypoint(start_item); wp != NULL; wp = (wp->index + 1U < GetWaypointPoolSize()) ? GetWaypoint(wp->index + 1U) : NULL) wp->index = start_item++;
|
||||
}
|
||||
|
||||
DEFINE_OLD_POOL(Waypoint, Waypoint, WaypointPoolNewBlock, NULL)
|
||||
|
||||
/* Create a new waypoint */
|
||||
static Waypoint* AllocateWaypoint(void)
|
||||
{
|
||||
Waypoint *wp;
|
||||
|
||||
/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
|
||||
* TODO - This is just a temporary stage, this will be removed. */
|
||||
for (wp = GetWaypoint(0); wp != NULL; wp = (wp->index + 1U < GetWaypointPoolSize()) ? GetWaypoint(wp->index + 1U) : NULL) {
|
||||
if (!IsValidWaypoint(wp)) {
|
||||
uint index = wp->index;
|
||||
|
||||
memset(wp, 0, sizeof(*wp));
|
||||
wp->index = index;
|
||||
|
||||
return wp;
|
||||
}
|
||||
}
|
||||
|
||||
/* Check if we can add a block to the pool */
|
||||
if (AddBlockToPool(&_Waypoint_pool)) return AllocateWaypoint();
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Update the sign for the waypoint */
|
||||
static void UpdateWaypointSign(Waypoint* wp)
|
||||
{
|
||||
Point pt = RemapCoords2(TileX(wp->xy) * TILE_SIZE, TileY(wp->xy) * TILE_SIZE);
|
||||
SetDParam(0, wp->index);
|
||||
UpdateViewportSignPos(&wp->sign, pt.x, pt.y - 0x20, STR_WAYPOINT_VIEWPORT);
|
||||
}
|
||||
|
||||
/* Redraw the sign of a waypoint */
|
||||
static void RedrawWaypointSign(const Waypoint* wp)
|
||||
{
|
||||
MarkAllViewportsDirty(
|
||||
wp->sign.left - 6,
|
||||
wp->sign.top,
|
||||
wp->sign.left + (wp->sign.width_1 << 2) + 12,
|
||||
wp->sign.top + 48);
|
||||
}
|
||||
|
||||
/* Update all signs */
|
||||
void UpdateAllWaypointSigns(void)
|
||||
{
|
||||
Waypoint *wp;
|
||||
|
||||
FOR_ALL_WAYPOINTS(wp) {
|
||||
UpdateWaypointSign(wp);
|
||||
}
|
||||
}
|
||||
|
||||
/* Internal handler to delete a waypoint */
|
||||
void DestroyWaypoint(Waypoint *wp)
|
||||
{
|
||||
RemoveOrderFromAllVehicles(OT_GOTO_WAYPOINT, wp->index);
|
||||
|
||||
if (wp->string != STR_NULL) DeleteName(wp->string);
|
||||
|
||||
RedrawWaypointSign(wp);
|
||||
}
|
||||
|
||||
/* Set the default name for a waypoint */
|
||||
static void MakeDefaultWaypointName(Waypoint* wp)
|
||||
{
|
||||
Waypoint *local_wp;
|
||||
bool used_waypoint[MAX_WAYPOINTS_PER_TOWN];
|
||||
int i;
|
||||
|
||||
wp->town_index = ClosestTownFromTile(wp->xy, (uint)-1)->index;
|
||||
|
||||
memset(used_waypoint, 0, sizeof(used_waypoint));
|
||||
|
||||
/* Find an unused waypoint number belonging to this town */
|
||||
FOR_ALL_WAYPOINTS(local_wp) {
|
||||
if (wp == local_wp) continue;
|
||||
|
||||
if (local_wp->xy && local_wp->string == STR_NULL && local_wp->town_index == wp->town_index)
|
||||
used_waypoint[local_wp->town_cn] = true;
|
||||
}
|
||||
|
||||
/* Find an empty spot */
|
||||
for (i = 0; used_waypoint[i] && i < MAX_WAYPOINTS_PER_TOWN; i++) {}
|
||||
|
||||
wp->string = STR_NULL;
|
||||
wp->town_cn = i;
|
||||
}
|
||||
|
||||
/* Find a deleted waypoint close to a tile. */
|
||||
static Waypoint *FindDeletedWaypointCloseTo(TileIndex tile)
|
||||
{
|
||||
Waypoint *wp, *best = NULL;
|
||||
uint thres = 8;
|
||||
|
||||
FOR_ALL_WAYPOINTS(wp) {
|
||||
if (wp->deleted) {
|
||||
uint cur_dist = DistanceManhattan(tile, wp->xy);
|
||||
|
||||
if (cur_dist < thres) {
|
||||
thres = cur_dist;
|
||||
best = wp;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return best;
|
||||
}
|
||||
|
||||
/**
|
||||
* Update waypoint graphics id against saved GRFID/localidx.
|
||||
* This is to ensure the chosen graphics are correct if GRF files are changed.
|
||||
*/
|
||||
void AfterLoadWaypoints(void)
|
||||
{
|
||||
Waypoint *wp;
|
||||
|
||||
FOR_ALL_WAYPOINTS(wp) {
|
||||
uint i;
|
||||
|
||||
if (wp->grfid == 0) continue;
|
||||
|
||||
for (i = 0; i < GetNumCustomStations(STAT_CLASS_WAYP); i++) {
|
||||
const StationSpec *statspec = GetCustomStationSpec(STAT_CLASS_WAYP, i);
|
||||
if (statspec != NULL && statspec->grfid == wp->grfid && statspec->localidx == wp->localidx) {
|
||||
wp->stat_id = i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Convert existing rail to waypoint. Eg build a waypoint station over
|
||||
* piece of rail
|
||||
* @param tile tile where waypoint will be built
|
||||
* @param p1 graphics for waypoint type, 0 indicates standard graphics
|
||||
* @param p2 unused
|
||||
*
|
||||
* @todo When checking for the tile slope,
|
||||
* distingush between "Flat land required" and "land sloped in wrong direction"
|
||||
*/
|
||||
int32 CmdBuildTrainWaypoint(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
|
||||
{
|
||||
Waypoint *wp;
|
||||
Slope tileh;
|
||||
Axis axis;
|
||||
|
||||
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
||||
|
||||
/* if custom gfx are used, make sure it is within bounds */
|
||||
if (p1 >= GetNumCustomStations(STAT_CLASS_WAYP)) return CMD_ERROR;
|
||||
|
||||
if (!IsTileType(tile, MP_RAILWAY) ||
|
||||
GetRailTileType(tile) != RAIL_TILE_NORMAL || (
|
||||
(axis = AXIS_X, GetTrackBits(tile) != TRACK_BIT_X) &&
|
||||
(axis = AXIS_Y, GetTrackBits(tile) != TRACK_BIT_Y)
|
||||
)) {
|
||||
return_cmd_error(STR_1005_NO_SUITABLE_RAILROAD_TRACK);
|
||||
}
|
||||
|
||||
if (!CheckTileOwnership(tile)) return CMD_ERROR;
|
||||
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
|
||||
|
||||
tileh = GetTileSlope(tile, NULL);
|
||||
if (tileh != SLOPE_FLAT &&
|
||||
(!_patches.build_on_slopes || IsSteepSlope(tileh) || !(tileh & (0x3 << axis)) || !(tileh & ~(0x3 << axis)))) {
|
||||
return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
|
||||
}
|
||||
|
||||
if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
|
||||
|
||||
/* Check if there is an already existing, deleted, waypoint close to us that we can reuse. */
|
||||
wp = FindDeletedWaypointCloseTo(tile);
|
||||
if (wp == NULL) {
|
||||
wp = AllocateWaypoint();
|
||||
if (wp == NULL) return CMD_ERROR;
|
||||
|
||||
wp->town_index = 0;
|
||||
wp->string = STR_NULL;
|
||||
wp->town_cn = 0;
|
||||
}
|
||||
|
||||
if (flags & DC_EXEC) {
|
||||
const StationSpec* statspec;
|
||||
|
||||
MakeRailWaypoint(tile, GetTileOwner(tile), axis, GetRailType(tile), wp->index);
|
||||
MarkTileDirtyByTile(tile);
|
||||
|
||||
statspec = GetCustomStationSpec(STAT_CLASS_WAYP, p1);
|
||||
|
||||
if (statspec != NULL) {
|
||||
wp->stat_id = p1;
|
||||
wp->grfid = statspec->grfid;
|
||||
wp->localidx = statspec->localidx;
|
||||
} else {
|
||||
// Specified custom graphics do not exist, so use default.
|
||||
wp->stat_id = 0;
|
||||
wp->grfid = 0;
|
||||
wp->localidx = 0;
|
||||
}
|
||||
|
||||
wp->deleted = 0;
|
||||
wp->xy = tile;
|
||||
wp->build_date = _date;
|
||||
|
||||
if (wp->town_index == 0) MakeDefaultWaypointName(wp);
|
||||
|
||||
UpdateWaypointSign(wp);
|
||||
RedrawWaypointSign(wp);
|
||||
YapfNotifyTrackLayoutChange(tile, AxisToTrack(axis));
|
||||
}
|
||||
|
||||
return _price.build_train_depot;
|
||||
}
|
||||
|
||||
/* Daily loop for waypoints */
|
||||
void WaypointsDailyLoop(void)
|
||||
{
|
||||
Waypoint *wp;
|
||||
|
||||
/* Check if we need to delete a waypoint */
|
||||
FOR_ALL_WAYPOINTS(wp) {
|
||||
if (wp->deleted != 0 && --wp->deleted == 0) DeleteWaypoint(wp);
|
||||
}
|
||||
}
|
||||
|
||||
/* Remove a waypoint */
|
||||
int32 RemoveTrainWaypoint(TileIndex tile, uint32 flags, bool justremove)
|
||||
{
|
||||
Waypoint *wp;
|
||||
|
||||
/* Make sure it's a waypoint */
|
||||
if (!IsTileType(tile, MP_RAILWAY) ||
|
||||
!IsRailWaypoint(tile) ||
|
||||
(!CheckTileOwnership(tile) && _current_player != OWNER_WATER) ||
|
||||
!EnsureNoVehicle(tile)) {
|
||||
return CMD_ERROR;
|
||||
}
|
||||
|
||||
if (flags & DC_EXEC) {
|
||||
Track track = GetRailWaypointTrack(tile);
|
||||
wp = GetWaypointByTile(tile);
|
||||
|
||||
wp->deleted = 30; // let it live for this many days before we do the actual deletion.
|
||||
RedrawWaypointSign(wp);
|
||||
|
||||
if (justremove) {
|
||||
MakeRailNormal(tile, GetTileOwner(tile), GetRailWaypointBits(tile), GetRailType(tile));
|
||||
MarkTileDirtyByTile(tile);
|
||||
} else {
|
||||
DoClearSquare(tile);
|
||||
SetSignalsOnBothDir(tile, track);
|
||||
}
|
||||
YapfNotifyTrackLayoutChange(tile, track);
|
||||
}
|
||||
|
||||
return _price.remove_train_depot;
|
||||
}
|
||||
|
||||
/** Delete a waypoint
|
||||
* @param tile tile where waypoint is to be deleted
|
||||
* @param p1 unused
|
||||
* @param p2 unused
|
||||
*/
|
||||
int32 CmdRemoveTrainWaypoint(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
|
||||
{
|
||||
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
||||
return RemoveTrainWaypoint(tile, flags, true);
|
||||
}
|
||||
|
||||
/** Rename a waypoint.
|
||||
* @param tile unused
|
||||
* @param p1 id of waypoint
|
||||
* @param p2 unused
|
||||
*/
|
||||
int32 CmdRenameWaypoint(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
|
||||
{
|
||||
Waypoint *wp;
|
||||
|
||||
if (!IsValidWaypointID(p1)) return CMD_ERROR;
|
||||
|
||||
if (_cmd_text[0] != '\0') {
|
||||
StringID str = AllocateNameUnique(_cmd_text, 0);
|
||||
|
||||
if (str == 0) return CMD_ERROR;
|
||||
|
||||
if (flags & DC_EXEC) {
|
||||
wp = GetWaypoint(p1);
|
||||
if (wp->string != STR_NULL) DeleteName(wp->string);
|
||||
|
||||
wp->string = str;
|
||||
wp->town_cn = 0;
|
||||
|
||||
UpdateWaypointSign(wp);
|
||||
MarkWholeScreenDirty();
|
||||
} else {
|
||||
DeleteName(str);
|
||||
}
|
||||
} else {
|
||||
if (flags & DC_EXEC) {
|
||||
wp = GetWaypoint(p1);
|
||||
if (wp->string != STR_NULL) DeleteName(wp->string);
|
||||
|
||||
MakeDefaultWaypointName(wp);
|
||||
UpdateWaypointSign(wp);
|
||||
MarkWholeScreenDirty();
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* This hacks together some dummy one-shot Station structure for a waypoint. */
|
||||
Station *ComposeWaypointStation(TileIndex tile)
|
||||
{
|
||||
Waypoint *wp = GetWaypointByTile(tile);
|
||||
static Station stat;
|
||||
|
||||
stat.train_tile = stat.xy = wp->xy;
|
||||
stat.town = GetTown(wp->town_index);
|
||||
stat.string_id = wp->string == STR_NULL ? /* FIXME? */ 0 : wp->string;
|
||||
stat.build_date = wp->build_date;
|
||||
|
||||
return &stat;
|
||||
}
|
||||
|
||||
/* Draw a waypoint */
|
||||
void DrawWaypointSprite(int x, int y, int stat_id, RailType railtype)
|
||||
{
|
||||
x += 33;
|
||||
y += 17;
|
||||
|
||||
if (!DrawStationTile(x, y, railtype, AXIS_X, STAT_CLASS_WAYP, stat_id)) {
|
||||
DrawDefaultWaypointSprite(x, y, railtype);
|
||||
}
|
||||
}
|
||||
|
||||
/* Fix savegames which stored waypoints in their old format */
|
||||
void FixOldWaypoints(void)
|
||||
{
|
||||
Waypoint *wp;
|
||||
|
||||
/* Convert the old 'town_or_string', to 'string' / 'town' / 'town_cn' */
|
||||
FOR_ALL_WAYPOINTS(wp) {
|
||||
wp->town_index = ClosestTownFromTile(wp->xy, (uint)-1)->index;
|
||||
wp->town_cn = 0;
|
||||
if (wp->string & 0xC000) {
|
||||
wp->town_cn = wp->string & 0x3F;
|
||||
wp->string = STR_NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void InitializeWaypoints(void)
|
||||
{
|
||||
CleanPool(&_Waypoint_pool);
|
||||
AddBlockToPool(&_Waypoint_pool);
|
||||
}
|
||||
|
||||
static const SaveLoad _waypoint_desc[] = {
|
||||
SLE_CONDVAR(Waypoint, xy, SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
|
||||
SLE_CONDVAR(Waypoint, xy, SLE_UINT32, 6, SL_MAX_VERSION),
|
||||
SLE_CONDVAR(Waypoint, town_index, SLE_UINT16, 12, SL_MAX_VERSION),
|
||||
SLE_CONDVAR(Waypoint, town_cn, SLE_UINT8, 12, SL_MAX_VERSION),
|
||||
SLE_VAR(Waypoint, string, SLE_UINT16),
|
||||
SLE_VAR(Waypoint, deleted, SLE_UINT8),
|
||||
|
||||
SLE_CONDVAR(Waypoint, build_date, SLE_FILE_U16 | SLE_VAR_I32, 3, 30),
|
||||
SLE_CONDVAR(Waypoint, build_date, SLE_INT32, 31, SL_MAX_VERSION),
|
||||
SLE_CONDVAR(Waypoint, localidx, SLE_UINT8, 3, SL_MAX_VERSION),
|
||||
SLE_CONDVAR(Waypoint, grfid, SLE_UINT32, 17, SL_MAX_VERSION),
|
||||
|
||||
SLE_END()
|
||||
};
|
||||
|
||||
static void Save_WAYP(void)
|
||||
{
|
||||
Waypoint *wp;
|
||||
|
||||
FOR_ALL_WAYPOINTS(wp) {
|
||||
SlSetArrayIndex(wp->index);
|
||||
SlObject(wp, _waypoint_desc);
|
||||
}
|
||||
}
|
||||
|
||||
static void Load_WAYP(void)
|
||||
{
|
||||
int index;
|
||||
|
||||
while ((index = SlIterateArray()) != -1) {
|
||||
Waypoint *wp;
|
||||
|
||||
if (!AddBlockIfNeeded(&_Waypoint_pool, index))
|
||||
error("Waypoints: failed loading savegame: too many waypoints");
|
||||
|
||||
wp = GetWaypoint(index);
|
||||
SlObject(wp, _waypoint_desc);
|
||||
}
|
||||
}
|
||||
|
||||
const ChunkHandler _waypoint_chunk_handlers[] = {
|
||||
{ 'CHKP', Save_WAYP, Load_WAYP, CH_ARRAY | CH_LAST},
|
||||
};
|
||||
Reference in New Issue
Block a user