(svn r1) Import of revision 975 of old (crashed) SVN

1 files changed, 1009 insertions, 0 deletions

diff --git a/rail_gui.c b/rail_gui.c
new file mode 100644
index 000000000..ddbbd26b8
--- /dev/null
+++ b/rail_gui.c
@@ -0,0 +1,1009 @@
+#include "stdafx.h"
+#include "ttd.h"
+
+#include "window.h"
+#include "gui.h"
+#include "viewport.h"
+#include "gfx.h"
+#include "command.h"
+#include "vehicle.h"
+
+static uint _cur_railtype;
+static bool _remove_button_clicked;
+static byte _build_depot_direction;
+
+struct {
+	byte orientation;
+	byte numtracks;
+	byte platlength;
+	bool dragdrop;
+} _railstation;
+
+
+static void HandleStationPlacement(uint start, uint end);
+static void ShowBuildTrainDepotPicker();
+static void ShowStationBuilder();
+
+typedef void OnButtonClick(Window *w);
+
+static void CcPlaySound1E(bool success, uint tile, uint32 p1, uint32 p2)
+{
+	if (success) SndPlayTileFx(0x1E, tile);
+}
+
+static void GenericPlaceRail(uint tile, int cmd)
+{
+	DoCommandP(tile, _cur_railtype, cmd, CcPlaySound1E,
+		_remove_button_clicked ? 
+		CMD_REMOVE_SINGLE_RAIL | CMD_MSG(STR_1012_CAN_T_REMOVE_RAILROAD_TRACK) | CMD_AUTO | CMD_NO_WATER : 
+		CMD_BUILD_SINGLE_RAIL | CMD_MSG(STR_1011_CAN_T_BUILD_RAILROAD_TRACK) | CMD_AUTO | CMD_NO_WATER
+		);
+}
+
+static void PlaceRail_N(uint tile)
+{
+	int cmd = _tile_fract_coords.x > _tile_fract_coords.y ? 4 : 5;
+	GenericPlaceRail(tile, cmd);
+}
+
+static void PlaceRail_NE(uint tile)
+{
+	VpStartPlaceSizing(tile, VPM_FIX_Y);
+}
+
+static void PlaceRail_E(uint tile)
+{
+	int cmd = _tile_fract_coords.x + _tile_fract_coords.y <= 15 ? 2 : 3;
+	GenericPlaceRail(tile, cmd);
+}
+
+static void PlaceRail_NW(uint tile)
+{
+	VpStartPlaceSizing(tile, VPM_FIX_X);
+}
+
+static void PlaceRail_AutoRail(uint tile)
+{
+	VpStartPlaceSizing(tile, VPM_RAILDIRS);
+}
+
+static int16 _place_depot_offs_xy[4] = { -1,	0x100,	1,	-0x100};
+
+static void PlaceExtraDepotRail(uint tile, uint16 extra)
+{
+	byte b = _map5[tile];
+
+	if (b & 0xC0 || !(b & (extra >> 8)))
+		return;
+
+	DoCommandP(tile, _cur_railtype, extra & 0xFF, NULL, CMD_BUILD_SINGLE_RAIL | CMD_AUTO | CMD_NO_WATER); 
+}
+
+static const uint16 _place_depot_extra[12] = {
+	0x604,		0x2102,		0x1202,		0x505,
+	0x2400,		0x2801,		0x1800,		0x1401,
+	0x2203,		0x904,		0x0A05,		0x1103,
+};
+
+
+static void CcDepot(bool success, uint tile, uint32 p1, uint32 p2)
+{
+	if (success) {
+		int dir = p2;
+
+		SndPlayTileFx(0x1E, tile);
+		ResetObjectToPlace();
+
+		tile += _place_depot_offs_xy[dir];
+
+		if (IS_TILETYPE(tile, MP_RAILWAY)) {
+			PlaceExtraDepotRail(tile, _place_depot_extra[dir]);
+			PlaceExtraDepotRail(tile, _place_depot_extra[dir + 4]);
+			PlaceExtraDepotRail(tile, _place_depot_extra[dir + 8]);
+		}
+	}	
+}
+
+static void PlaceRail_Depot(uint tile)
+{
+	DoCommandP(tile, _cur_railtype, _build_depot_direction, CcDepot, 
+		CMD_BUILD_TRAIN_DEPOT | CMD_AUTO | CMD_NO_WATER | CMD_MSG(STR_100E_CAN_T_BUILD_TRAIN_DEPOT));
+}
+
+static void PlaceRail_Checkpoint(uint tile)
+{
+	if (!_remove_button_clicked) {
+		DoCommandP(tile, 0, 0, CcPlaySound1E, CMD_BUILD_TRAIN_CHECKPOINT | CMD_MSG(STR_CANT_BUILD_TRAIN_CHECKPOINT));
+	} else {
+		DoCommandP(tile, 0, 0, CcPlaySound1E, CMD_REMOVE_TRAIN_CHECKPOINT | CMD_MSG(STR_CANT_REMOVE_TRAIN_CHECKPOINT));
+	}
+}
+
+static void CcStation(bool success, uint tile, uint32 p1, uint32 p2)
+{
+	if (success) {
+		SndPlayTileFx(0x1E, tile);
+		ResetObjectToPlace();
+	}
+}
+
+static void PlaceRail_Station(uint tile)
+{
+	if(_remove_button_clicked)
+		DoCommandP(tile, 0, 0, CcPlaySound1E, CMD_REMOVE_FROM_RAILROAD_STATION | CMD_MSG(STR_CANT_REMOVE_PART_OF_STATION));
+	else if (_railstation.dragdrop) {
+		VpStartPlaceSizing(tile, VPM_X_AND_Y_LIMITED);
+		VpSetPlaceSizingLimit(_patches.station_spread);
+	} else {
+		DoCommandP(tile, _railstation.orientation | (_railstation.numtracks<<8) | (_railstation.platlength<<16),_cur_railtype, CcStation,
+				CMD_BUILD_RAILROAD_STATION | CMD_NO_WATER | CMD_AUTO | CMD_MSG(STR_100F_CAN_T_BUILD_RAILROAD_STATION));
+	}
+}
+
+static void PlaceRail_Signals(uint tile)
+{
+	uint trackstat;
+	int i;
+
+	trackstat = (byte)GetTileTrackStatus(tile,0);
+
+	if ((trackstat & 0x30) == 0x30) {
+		trackstat = (_tile_fract_coords.x <= _tile_fract_coords.y) ? 0x20 : 0x10;
+	}
+
+	if ((trackstat & 0x0C) == 0x0C) {
+		trackstat = (_tile_fract_coords.x + _tile_fract_coords.y <= 15) ? 4 : 8;
+	}
+
+	// Lookup the bit index
+	i = 0;
+	if (trackstat != 0) {	while (!(trackstat & 1)) { i++; trackstat >>= 1; }}
+
+	if (!_remove_button_clicked) {
+		DoCommandP(tile, i + (_ctrl_pressed ? 8 : 0), 0, CcPlaySound1E,
+			CMD_BUILD_SIGNALS | CMD_AUTO | CMD_MSG(STR_1010_CAN_T_BUILD_SIGNALS_HERE));
+	} else {
+		DoCommandP(tile, i, 0, CcPlaySound1E,
+			CMD_REMOVE_SIGNALS | CMD_AUTO | CMD_MSG(STR_1013_CAN_T_REMOVE_SIGNALS_FROM));
+	}
+}
+
+static void PlaceRail_Bridge(uint tile)
+{
+	VpStartPlaceSizing(tile, VPM_X_OR_Y);
+}
+
+static void CcBuildTunnel(bool success, uint tile, uint32 p1, uint32 p2)
+{
+	if (success) {
+		SndPlayTileFx(0x1E, tile);
+		ResetObjectToPlace();
+	} else {
+		SetRedErrorSquare(_build_tunnel_endtile);
+	}
+}
+
+static void PlaceRail_Tunnel(uint tile)
+{
+	DoCommandP(tile, _cur_railtype, 0, CcBuildTunnel,
+		CMD_BUILD_TUNNEL | CMD_AUTO | CMD_MSG(STR_5016_CAN_T_BUILD_TUNNEL_HERE));
+}
+
+void PlaceProc_BuyLand(uint tile)
+{
+	DoCommandP(tile, 0, 0, CcPlaySound1E, CMD_PURCHASE_LAND_AREA | CMD_AUTO | CMD_NO_WATER | CMD_MSG(STR_5806_CAN_T_PURCHASE_THIS_LAND));
+}
+
+static void PlaceRail_ConvertRail(uint tile)
+{
+	VpStartPlaceSizing(tile, VPM_X_AND_Y | (1<<4));
+}
+
+static void BuildRailClick_AutoRail(Window *w)
+{
+	HandlePlacePushButton(w, 3, _cur_railtype + SPR_OPENTTD_BASE + 4, 1, PlaceRail_AutoRail);
+}
+
+static void BuildRailClick_N(Window *w)
+{
+	HandlePlacePushButton(w, 4, _cur_railtype*4 + 0x4EF, 1, PlaceRail_N);
+}
+
+static void BuildRailClick_NE(Window *w)
+{
+	HandlePlacePushButton(w, 5, _cur_railtype*4 + 0x4F0, 1, PlaceRail_NE);
+}
+
+static void BuildRailClick_E(Window *w)
+{
+	HandlePlacePushButton(w, 6, _cur_railtype*4 + 0x4F1, 1, PlaceRail_E);
+}
+
+static void BuildRailClick_NW(Window *w)
+{
+	HandlePlacePushButton(w, 7, _cur_railtype*4 + 0x4F2, 1, PlaceRail_NW);
+}
+
+static void BuildRailClick_Demolish(Window *w)
+{
+	HandlePlacePushButton(w, 8, ANIMCURSOR_DEMOLISH, 1, PlaceProc_DemolishArea);
+}
+
+static void BuildRailClick_Lower(Window *w)
+{
+	HandlePlacePushButton(w, 9, ANIMCURSOR_LOWERLAND, 2, PlaceProc_LowerLand);
+}
+
+static void BuildRailClick_Raise(Window *w)
+{
+	HandlePlacePushButton(w, 10, ANIMCURSOR_RAISELAND, 2, PlaceProc_RaiseLand);
+}
+
+static const SpriteID _depot_cursors[] = {
+	0x510,
+	SPR_OPENTTD_BASE + 14,
+	SPR_OPENTTD_BASE + 15,
+};
+
+static void BuildRailClick_Depot(Window *w)
+{
+	if (HandlePlacePushButton(w, 11, _depot_cursors[_cur_railtype], 1, PlaceRail_Depot)) ShowBuildTrainDepotPicker();	
+}
+
+static void BuildRailClick_Station(Window *w)
+{
+	if (HandlePlacePushButton(w, 12, 0x514, 1, PlaceRail_Station)) ShowStationBuilder();	
+}
+
+static void BuildRailClick_Signals(Window *w)
+{
+	HandlePlacePushButton(w, 13, ANIMCURSOR_BUILDSIGNALS, 1, PlaceRail_Signals);
+}
+
+static void BuildRailClick_Bridge(Window *w)
+{
+	HandlePlacePushButton(w, 14, 0xA21, 1, PlaceRail_Bridge);
+}
+
+static void BuildRailClick_Tunnel(Window *w)
+{
+	HandlePlacePushButton(w, 15, 0x982 + _cur_railtype, 3, PlaceRail_Tunnel);
+}
+
+static void BuildRailClick_Remove(Window *w)
+{
+	if (w->disabled_state & (1<<16))
+		return;
+	SetWindowDirty(w);
+	SndPlayFx(0x13);
+	
+	_thd.make_square_red = !!((w->click_state ^= (1 << 16)) & (1<<16));
+	_remove_button_clicked = (w->click_state & (1 << 16)) != 0;
+	
+	// handle station builder
+	if( w->click_state & (1 << 12) )
+	{
+		if(_remove_button_clicked)
+			SetTileSelectSize(1, 1);
+		else
+			BringWindowToFrontById(WC_BUILD_STATION, 0);
+	}
+}
+
+static void BuildRailClick_Sign(Window *w)
+{
+	HandlePlacePushButton(w, 17, 0x12B8, 1, PlaceProc_BuyLand);
+}
+
+static void BuildRailClick_Checkpoint(Window *w)
+{
+	HandlePlacePushButton(w, 18, SPR_OPENTTD_BASE + 7, 1, PlaceRail_Checkpoint);
+}
+
+static void BuildRailClick_Convert(Window *w)
+{
+	HandlePlacePushButton(w, 19, (SPR_OPENTTD_BASE + 26) + _cur_railtype * 2, 1, PlaceRail_ConvertRail);
+}
+
+
+static void DoRailroadTrack(int mode)
+{
+	DoCommandP(TILE_FROM_XY(_thd.selstart.x, _thd.selstart.y), PACK_POINT(_thd.selend.x, _thd.selend.y), (mode << 4) | _cur_railtype, NULL, 
+		_remove_button_clicked ? 
+		CMD_REMOVE_RAILROAD_TRACK | CMD_AUTO | CMD_NO_WATER | CMD_MSG(STR_1012_CAN_T_REMOVE_RAILROAD_TRACK) :
+		CMD_BUILD_RAILROAD_TRACK | CMD_AUTO | CMD_NO_WATER | CMD_MSG(STR_1011_CAN_T_BUILD_RAILROAD_TRACK)
+	);
+}
+
+typedef struct {
+	byte bit, a,b, mouse;
+} BestFitStruct;
+
+#define M(d,m) (d << 6) | (m)
+static const BestFitStruct _bestfit[] = {
+	// both edges have rail
+	{2, M(0, 1+8), M(3, 2+8), 0}, // upper track
+	{3, M(2, 1+4), M(1, 2+4), 0}, // lower track
+
+	{4, M(2, 1+32), M(3, 2+32), 1<<2}, // left track
+	{5, M(0, 1+16), M(1, 2+16), 1<<3}, // right track
+
+	{0, M(0,1+8+16), M(2,1+4+32), 0}, // diag1 track
+	{1, M(3,2+8+32), M(1,2+4+16), 0}, // diag2 track
+	
+	// one edge with rail
+	{0, M(0,1), 0, 0}, // diag1 track
+	{0, M(2,1), 0, 0}, // diag1 track
+	
+	{1, M(1,2), 0, 0}, // diag2 track
+	{1, M(3,2), 0, 0}, // diag2 track
+
+	{2, M(0,8), 0, 1<<0}, // upper track
+	{2, M(3,8), 0, 1<<0}, // upper track
+
+	{3, M(1,4), 0, 1<<1}, // lower track
+	{3, M(2,4), 0, 1<<1}, // lower track
+
+	{4, M(2,32), 0, 1<<2}, // left track
+	{4, M(3,32), 0, 1<<2}, // left track
+
+	{5, M(0,16), 0, 1<<3}, // right track
+	{5, M(1,16), 0, 1<<3}, // right track
+
+	{0xff,0,0},
+};
+#undef M
+
+static int GetBestArea(int x, int y)
+{
+	int r = 0;
+	if (x + y > 0x10) r += 2;
+	else if (x + y == 0x10) return -1;
+	if (y - x > 0) r += 1;
+	else if (y - x == 0) return -1;
+	return r;
+}
+
+int GetBestFit1x1(int x, int y)
+{
+	byte m[5];
+	const BestFitStruct *bfs;
+	byte mouse;
+	uint tile;
+	int best;
+	int i;
+
+	// determine the mouse regions
+	mouse = ((x & 0xF) + (y & 0xF) < 0x10 ? 1 << 0 : 1 << 1) +
+					((x & 0xF) > (y & 0xF) ? 1 << 2 : 1 << 3);
+
+	// get the rail in each direction
+	tile = TILE_FROM_XY(x,y);
+	for(i=0; i!=5; i++) {
+		static TileIndexDiff _tile_inc[5] = {
+			TILE_XY(-1, 0),
+			TILE_XY(0, 1) - TILE_XY(-1, 0),
+			TILE_XY(1, 0) - TILE_XY(0, 1),
+			TILE_XY(0, -1) - TILE_XY(1, 0),
+			TILE_XY(0, 0) - TILE_XY(0, -1),
+		};
+		tile += _tile_inc[i];
+		m[i] = 0;
+		if (IS_TILETYPE(tile, MP_RAILWAY) && _map5[tile] < 0x80) 
+			m[i] = _map5[tile]&0x3F;
+
+		// handle tracks under bridge
+		if(IS_TILETYPE(tile, MP_TUNNELBRIDGE) && (_map5[tile]&0xF8)==0xE0)
+			m[i] = (byte) !(_map5[tile]&0x01) + 1;
+
+		if (_remove_button_clicked) m[i] ^= 0x3F;
+	}
+
+	// check "mouse gesture"?
+	{
+		int a1,a2;
+		if ((a1 = GetBestArea(x & 0xF, y & 0xF)) != -1 && (a2 = GetBestArea(_tile_fract_coords.x, _tile_fract_coords.y)) != -1 && a1 != a2) {
+			static const byte _get_dir_by_areas[4][4] = {
+				{0,2,4,1},
+				{2,0,0,5},
+				{4,0,0,3},
+				{1,5,3,0},
+			};
+			i = _get_dir_by_areas[a2][a1];
+			if (!HASBIT(m[4], i))
+				return i;
+		}
+	}
+	// check each bestfit struct
+	for(bfs = _bestfit, best=-1; bfs->bit != 0xFF; bfs++) {
+		if ((bfs->a & m[bfs->a >> 6]) && (!bfs->b || bfs->b & m[bfs->b >> 6]) && !HASBIT(m[4], bfs->bit)) {
+			if ( (byte)(~mouse & bfs->mouse) == 0)
+				return bfs->bit;
+			if (best != -1)
+				return best;
+			best = bfs->bit;
+		}
+	}
+
+	return best;
+}
+
+static void SwapSelection()
+{
+	TileHighlightData *thd = &_thd;
+	Point pt = thd->selstart;
+	thd->selstart.x = thd->selend.x & ~0xF;
+	thd->selstart.y = thd->selend.y & ~0xF;
+	thd->selend = pt;
+}
+
+static bool Check2x1AutoRail(int mode)
+{
+	TileHighlightData *thd = &_thd;
+	int fxpy = _tile_fract_coords.x + _tile_fract_coords.y;
+	int sxpy = (thd->selend.x & 0xF) + (thd->selend.y & 0xF);
+	int fxmy = _tile_fract_coords.x - _tile_fract_coords.y;
+	int sxmy = (thd->selend.x & 0xF) - (thd->selend.y & 0xF);
+	
+	switch(mode) {
+	case 0:
+		if (fxpy >= 20 && sxpy <= 12) { SwapSelection(); DoRailroadTrack(0); return true; }
+		if (fxmy < -3 && sxmy > 3) { DoRailroadTrack(0); return true; }
+		break;
+
+	case 1:
+		if (fxmy > 3 && sxmy < -3) { SwapSelection(); DoRailroadTrack(0); return true; }
+		if (fxpy <= 12 && sxpy >= 20) { DoRailroadTrack(0); return true; }
+		break;	
+
+	case 2:
+		if (fxmy > 3 && sxmy < -3) { DoRailroadTrack(3); return true; }
+		if (fxpy >= 20 && sxpy <= 12) { SwapSelection(); DoRailroadTrack(0); return true; }
+		break;
+
+	case 3:
+		if (fxmy < -3 && sxmy > 3) { SwapSelection(); DoRailroadTrack(3); return true; }
+		if (fxpy <= 12 && sxpy >= 20) { DoRailroadTrack(0); return true; }
+		break;
+	}
+
+	return false;
+}
+
+
+static void HandleAutodirPlacement()
+{
+	TileHighlightData *thd = &_thd;
+	int bit;
+
+	if (thd->drawstyle == HT_RECT) {
+		int dx = thd->selstart.x - (thd->selend.x&~0xF);
+		int dy = thd->selstart.y - (thd->selend.y&~0xF);
+		
+		if (dx == 0 && dy == 0 ) {
+			// 1x1 tile
+			bit = GetBestFit1x1(thd->selend.x, thd->selend.y);
+			if (bit == -1) return;
+			GenericPlaceRail(TILE_FROM_XY(thd->selend.x, thd->selend.y), bit);
+		} else if (dx == 0) {
+			if (dy == -16) {
+				if (Check2x1AutoRail(0)) return;
+			} else if (dy == 16) {
+				if (Check2x1AutoRail(1)) return;
+			}
+			// same x coordinate
+			DoRailroadTrack(VPM_FIX_X);
+		} else {
+			// same y coordinate
+			// check it's it -16 or 16, then we must check if it should be normal tiles or special tiles.
+			if (dx == -16) {
+				if (Check2x1AutoRail(2)) return;
+			} else if (dx == 16) {
+				if (Check2x1AutoRail(3)) return;
+			}
+			DoRailroadTrack(VPM_FIX_Y);
+		}
+	} else {
+		DoRailroadTrack(thd->drawstyle & 1 ? 0 : 3);
+	}
+}
+
+static OnButtonClick * const _build_railroad_button_proc[] = {
+	BuildRailClick_AutoRail,
+	BuildRailClick_N,
+	BuildRailClick_NE,
+	BuildRailClick_E,
+	BuildRailClick_NW,
+	BuildRailClick_Demolish,
+	BuildRailClick_Lower,
+	BuildRailClick_Raise,
+	BuildRailClick_Depot,
+	BuildRailClick_Station,
+	BuildRailClick_Signals,
+	BuildRailClick_Bridge,
+	BuildRailClick_Tunnel,
+	BuildRailClick_Remove,
+	BuildRailClick_Sign,
+	BuildRailClick_Checkpoint,
+	BuildRailClick_Convert,
+};
+
+static const uint16 _rail_keycodes[] = {
+	'5',
+	'1',
+	'2',
+	'3',
+	'4',
+	'6',
+	'7',
+	'8',
+	0,	// depot
+	0,	// station
+	'S',// signals
+	'B',// bridge
+	'T',// tunnel
+	'R',// remove
+	0,	// sign
+	'C',// checkpoint
+};
+
+
+
+
+static void BuildRailToolbWndProc(Window *w, WindowEvent *e)
+{
+	switch(e->event) {
+	case WE_PAINT:
+		w->disabled_state &= ~(1 << 16);
+		if (!(w->click_state & ((1<<3)|(1<<4)|(1<<5)|(1<<6)|(1<<7)|(1<<12)|(1<<13)|(1<<18)))) {
+			w->disabled_state |= (1 << 16);
+			w->click_state &= ~(1<<16);
+		}
+		DrawWindowWidgets(w);
+		break;
+
+	case WE_CLICK:
+		if (e->click.widget >= 3) {
+			_remove_button_clicked = false;
+			_build_railroad_button_proc[e->click.widget - 3](w);
+		}
+	break;
+
+	case WE_KEYPRESS: {
+		int i;
+		for(i=0; i!=lengthof(_rail_keycodes); i++)
+			if (e->keypress.keycode == _rail_keycodes[i]) {
+				e->keypress.cont = false;
+				_remove_button_clicked = false;
+				_build_railroad_button_proc[i](w);
+				break;
+			}
+		break;
+	}
+
+	case WE_PLACE_OBJ:
+		_place_proc(e->place.tile);
+		return;
+
+	case WE_PLACE_DRAG: {
+		VpSelectTilesWithMethod(e->place.pt.x, e->place.pt.y, e->place.userdata & 0xF);
+		return;
+	}
+
+	case WE_PLACE_MOUSEUP:
+		if (e->click.pt.x != -1) {
+			uint start_tile = e->place.starttile;
+			uint end_tile = e->place.tile;
+
+			if (e->place.userdata == VPM_X_OR_Y) {
+				ResetObjectToPlace();
+				ShowBuildBridgeWindow(start_tile, end_tile, _cur_railtype);
+			} else if (e->place.userdata == VPM_RAILDIRS) {
+				bool old = _remove_button_clicked;
+				if (_ctrl_pressed) _remove_button_clicked = true;
+				HandleAutodirPlacement();
+				_remove_button_clicked = old;
+			} else if (e->place.userdata == VPM_X_AND_Y) {
+				DoCommandP(end_tile, start_tile, 0, CcPlaySound10, CMD_CLEAR_AREA | CMD_MSG(STR_00B5_CAN_T_CLEAR_THIS_AREA));
+			} else if (e->place.userdata == (VPM_X_AND_Y | (1<<4))) {
+				DoCommandP(end_tile, start_tile, _cur_railtype, CcPlaySound10, CMD_CONVERT_RAIL | CMD_MSG(STR_CANT_CONVERT_RAIL));
+			} else if (e->place.userdata == (VPM_X_AND_Y | (2<<4))) {
+				DoCommandP(end_tile, start_tile, _cur_railtype, CcPlaySound10, CMD_LEVEL_LAND | CMD_AUTO);
+			} else if (e->place.userdata == VPM_X_AND_Y_LIMITED) {
+				HandleStationPlacement(start_tile, end_tile);
+			} else {
+				DoRailroadTrack(e->place.userdata);
+			}
+		}
+		break;
+
+	case WE_ABORT_PLACE_OBJ:
+		w->click_state = 0;
+		SetWindowDirty(w);
+
+		w = FindWindowById(WC_BUILD_STATION, 0);
+		if (w != NULL) WP(w,def_d).close=true;
+		w = FindWindowById(WC_BUILD_DEPOT, 0);
+		if (w != NULL) WP(w,def_d).close=true;
+		break;
+
+	case WE_PLACE_PRESIZE: {
+		uint tile = e->place.tile;
+		DoCommandByTile(tile, 0, 0, DC_AUTO, CMD_BUILD_TUNNEL);
+		VpSetPresizeRange(tile, _build_tunnel_endtile==0?tile:_build_tunnel_endtile);
+	} break;
+	}
+}
+
+static const Widget _build_railroad_widgets[] = {
+{   WWT_CLOSEBOX,     7,     0,    10,     0,    13, STR_00C5, STR_018B_CLOSE_WINDOW},
+{    WWT_CAPTION,     7,    11,   417,     0,    13, STR_100A_RAILROAD_CONSTRUCTION, STR_018C_WINDOW_TITLE_DRAG_THIS},
+
+{      WWT_PANEL,     7,    110,  113,    14,    35, 0x0, 0x0},
+{      WWT_PANEL,     7,    88,   109,    14,    35, SPR_OPENTTD_BASE + 0, STR_BUILD_AUTORAIL_TIP},
+
+{      WWT_PANEL,     7,    0,     21,    14,    35, 0x4E3, STR_1018_BUILD_RAILROAD_TRACK},
+{      WWT_PANEL,     7,    22,    43,    14,    35, 0x4E4, STR_1018_BUILD_RAILROAD_TRACK},
+{      WWT_PANEL,     7,    44,    65,    14,    35, 0x4E5, STR_1018_BUILD_RAILROAD_TRACK},
+{      WWT_PANEL,     7,    66,    87,    14,    35, 0x4E6, STR_1018_BUILD_RAILROAD_TRACK},
+
+{      WWT_PANEL,     7,   114,   135,    14,    35, 0x2BF, STR_018D_DEMOLISH_BUILDINGS_ETC},
+{      WWT_PANEL,     7,   136,   157,    14,    35, 0x2B7, STR_018E_LOWER_A_CORNER_OF_LAND},
+{      WWT_PANEL,     7,   158,   179,    14,    35, 0x2B6, STR_018F_RAISE_A_CORNER_OF_LAND},
+{      WWT_PANEL,     7,   180,   201,    14,    35, 0x50E, STR_1019_BUILD_TRAIN_DEPOT_FOR_BUILDING},
+
+{      WWT_PANEL,     7,   224,   265,    14,    35, 0x512, STR_101A_BUILD_RAILROAD_STATION},
+{      WWT_PANEL,     7,   266,   287,    14,    35, 0x50B, STR_101B_BUILD_RAILROAD_SIGNALS},
+{      WWT_PANEL,     7,   288,   329,    14,    35, 0xA22, STR_101C_BUILD_RAILROAD_BRIDGE},
+{      WWT_PANEL,     7,   330,   351,    14,    35, 0x97E, STR_101D_BUILD_RAILROAD_TUNNEL},
+{      WWT_PANEL,     7,   352,   373,    14,    35, 0x2CA, STR_101E_TOGGLE_BUILD_REMOVE_FOR},
+{      WWT_PANEL,     7,   374,   395,    14,    35, 0x12B7, STR_0329_PURCHASE_LAND_FOR_FUTURE},
+
+{      WWT_PANEL,     7,   202,   223,    14,    35, SPR_OPENTTD_BASE + 3, STR_CONVERT_RAIL_TO_CHECKPOINT_TIP},
+{      WWT_PANEL,     7,   396,   417,    14,    35, SPR_OPENTTD_BASE + 25, STR_CONVERT_RAIL_TIP},
+
+{      WWT_LAST},
+};
+
+static const WindowDesc _build_railroad_desc = {
+	640-418, 22, 418, 36,
+	WC_BUILD_TOOLBAR,0,
+	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,
+	_build_railroad_widgets,
+	BuildRailToolbWndProc
+};
+
+static const Widget _build_monorail_widgets[] = {
+{   WWT_CLOSEBOX,     7,     0,    10,     0,    13, STR_00C5, STR_018B_CLOSE_WINDOW},
+{    WWT_CAPTION,     7,    11,   417,     0,    13, STR_100B_MONORAIL_CONSTRUCTION, STR_018C_WINDOW_TITLE_DRAG_THIS},
+
+{      WWT_PANEL,     7,   110,   113,    14,    35, 0x0, 0x0},
+{      WWT_PANEL,     7,    88,   109,    14,    35, SPR_OPENTTD_BASE + 1, STR_BUILD_AUTORAIL_TIP},
+
+{      WWT_PANEL,     7,     0,    21,    14,    35, 0x4E7, STR_1018_BUILD_RAILROAD_TRACK},
+{      WWT_PANEL,     7,    22,    43,    14,    35, 0x4E8, STR_1018_BUILD_RAILROAD_TRACK},
+{      WWT_PANEL,     7,    44,    65,    14,    35, 0x4E9, STR_1018_BUILD_RAILROAD_TRACK},
+{      WWT_PANEL,     7,    66,    87,    14,    35, 0x4EA, STR_1018_BUILD_RAILROAD_TRACK},
+
+{      WWT_PANEL,     7,   114,   135,    14,    35, 0x2BF, STR_018D_DEMOLISH_BUILDINGS_ETC},
+{      WWT_PANEL,     7,   136,   157,    14,    35, 0x2B7, STR_018E_LOWER_A_CORNER_OF_LAND},
+{      WWT_PANEL,     7,   158,   179,    14,    35, 0x2B6, STR_018F_RAISE_A_CORNER_OF_LAND},
+{      WWT_PANEL,     7,   180,   201,    14,    35, SPR_OPENTTD_BASE + 12, STR_1019_BUILD_TRAIN_DEPOT_FOR_BUILDING},
+
+{      WWT_PANEL,     7,   224,   265,    14,    35, 0x512, STR_101A_BUILD_RAILROAD_STATION},
+{      WWT_PANEL,     7,   266,   287,    14,    35, 0x50B, STR_101B_BUILD_RAILROAD_SIGNALS},
+{      WWT_PANEL,     7,   288,   329,    14,    35, 0xA22, STR_101C_BUILD_RAILROAD_BRIDGE},
+{      WWT_PANEL,     7,   330,   351,    14,    35, 0x97F, STR_101D_BUILD_RAILROAD_TUNNEL},
+{      WWT_PANEL,     7,   352,   373,    14,    35, 0x2CA, STR_101E_TOGGLE_BUILD_REMOVE_FOR},
+{      WWT_PANEL,     7,   374,   395,    14,    35, 0x12B7, STR_0329_PURCHASE_LAND_FOR_FUTURE},
+
+{      WWT_PANEL,     7,   202,   223,    14,    35, SPR_OPENTTD_BASE + 3, STR_CONVERT_RAIL_TO_CHECKPOINT_TIP},
+{      WWT_PANEL,     7,   396,   417,    14,    35, SPR_OPENTTD_BASE + 27, STR_CONVERT_RAIL_TIP},
+{      WWT_LAST},
+};
+
+static const WindowDesc _build_monorail_desc = {
+	640-418, 22, 418, 36,
+	WC_BUILD_TOOLBAR,0,
+	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,
+	_build_monorail_widgets,
+	BuildRailToolbWndProc
+};
+
+static const Widget _build_maglev_widgets[] = {
+{   WWT_CLOSEBOX,     7,     0,    10,     0,    13, STR_00C5, STR_018B_CLOSE_WINDOW},
+{    WWT_CAPTION,     7,    11,   417,     0,    13, STR_100C_MAGLEV_CONSTRUCTION, STR_018C_WINDOW_TITLE_DRAG_THIS},
+
+{      WWT_PANEL,     7,   110,   113,    14,    35, 0x0, 0x0},
+{      WWT_PANEL,     7,    88,   109,    14,    35, SPR_OPENTTD_BASE + 2, STR_BUILD_AUTORAIL_TIP},
+
+{      WWT_PANEL,     7,     0,    21,    14,    35, 0x4EB, STR_1018_BUILD_RAILROAD_TRACK},
+{      WWT_PANEL,     7,    22,    43,    14,    35, 0x4EC, STR_1018_BUILD_RAILROAD_TRACK},
+{      WWT_PANEL,     7,    44,    65,    14,    35, 0x4EE, STR_1018_BUILD_RAILROAD_TRACK},
+{      WWT_PANEL,     7,    66,    87,    14,    35, 0x4ED, STR_1018_BUILD_RAILROAD_TRACK},
+
+{      WWT_PANEL,     7,   114,   135,    14,    35, 0x2BF, STR_018D_DEMOLISH_BUILDINGS_ETC},
+{      WWT_PANEL,     7,   136,   157,    14,    35, 0x2B7, STR_018E_LOWER_A_CORNER_OF_LAND},
+{      WWT_PANEL,     7,   158,   179,    14,    35, 0x2B6, STR_018F_RAISE_A_CORNER_OF_LAND},
+{      WWT_PANEL,     7,   180,   201,    14,    35, SPR_OPENTTD_BASE + 13, STR_1019_BUILD_TRAIN_DEPOT_FOR_BUILDING},
+
+{      WWT_PANEL,     7,   224,   265,    14,    35, 0x512, STR_101A_BUILD_RAILROAD_STATION},
+{      WWT_PANEL,     7,   266,   287,    14,    35, 0x50B, STR_101B_BUILD_RAILROAD_SIGNALS},
+{      WWT_PANEL,     7,   288,   329,    14,    35, 0xA22, STR_101C_BUILD_RAILROAD_BRIDGE},
+{      WWT_PANEL,     7,   330,   351,    14,    35, 0x980, STR_101D_BUILD_RAILROAD_TUNNEL},
+{      WWT_PANEL,     7,   352,   373,    14,    35, 0x2CA, STR_101E_TOGGLE_BUILD_REMOVE_FOR},
+{      WWT_PANEL,     7,   374,   395,    14,    35, 0x12B7, STR_0329_PURCHASE_LAND_FOR_FUTURE},
+
+{      WWT_PANEL,     7,   202,   223,    14,    35, SPR_OPENTTD_BASE + 3, STR_CONVERT_RAIL_TO_CHECKPOINT_TIP},
+{      WWT_PANEL,     7,   396,   417,    14,    35, SPR_OPENTTD_BASE + 29, STR_CONVERT_RAIL_TIP},
+{      WWT_LAST},
+};
+
+static const WindowDesc _build_maglev_desc = {
+	640-418, 22, 418, 36,
+	WC_BUILD_TOOLBAR,0,
+	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,
+	_build_maglev_widgets,
+	BuildRailToolbWndProc
+};
+
+
+static const WindowDesc * const _build_rr_desc[] = {
+	&_build_railroad_desc,
+	&_build_monorail_desc,
+	&_build_maglev_desc,
+};
+
+void ShowBuildRailToolbar(int index, int button)
+{
+	Window *w;
+
+	// don't recreate the window if we're clicking on a button and the window exists.
+	if (button < 0 || !(w = FindWindowById(WC_BUILD_TOOLBAR, 0)) || w->wndproc != BuildRailToolbWndProc) {
+		DeleteWindowById(WC_BUILD_TOOLBAR, 0);	
+		_cur_railtype = (byte)index;
+		w = AllocateWindowDesc(_build_rr_desc[index]);
+	}
+
+	if (w != NULL && button >= 0) _build_railroad_button_proc[button](w);
+}
+
+static void HandleStationPlacement(uint start, uint end)
+{
+	uint sx = GET_TILE_X(start);
+	uint sy = GET_TILE_Y(start);
+	uint ex = GET_TILE_X(end);
+	uint ey = GET_TILE_Y(end);
+	uint w,h;
+
+	if (sx > ex) intswap(sx,ex);
+	if (sy > ey) intswap(sy,ey);
+	w = ex - sx + 1;
+	h = ey - sy + 1;
+	if (!_railstation.orientation) intswap(w,h);
+
+	DoCommandP(TILE_XY(sx,sy), _railstation.orientation | (w<<8) | (h<<16),_cur_railtype, CcStation,
+		CMD_BUILD_RAILROAD_STATION | CMD_NO_WATER | CMD_AUTO | CMD_MSG(STR_100F_CAN_T_BUILD_RAILROAD_STATION));
+}
+
+static void StationBuildWndProc(Window *w, WindowEvent *e) {
+	switch(e->event) {
+	case WE_PAINT: {
+		uint bits;
+
+		if (WP(w,def_d).close)
+			return;
+
+		bits = (1<<3) << ( _railstation.orientation);
+		if (_railstation.dragdrop) {
+			bits |= (1<<19);
+		} else {
+			bits |= (1<<(5-1)) << (_railstation.numtracks);
+			bits |= (1<<(12-1)) << (_railstation.platlength);
+		}
+		bits |= (1<<20) << (_station_show_coverage);
+		w->click_state = bits;
+		
+		if (_railstation.dragdrop) {
+			SetTileSelectSize(1, 1);
+		} else {
+			int x = _railstation.numtracks;
+			int y = _railstation.platlength;
+			if (_railstation.orientation == 0) intswap(x,y);
+			if(!_remove_button_clicked)
+				SetTileSelectSize(x, y);
+		}
+				
+		if (_station_show_coverage)
+			SetTileSelectBigSize(-4, -4, 8, 8);
+
+		DrawWindowWidgets(w);
+		
+		StationPickerDrawSprite(39, 42, _cur_railtype, 2);
+		StationPickerDrawSprite(107, 42, _cur_railtype, 3);
+
+		DrawStringCentered(74, 15, STR_3002_ORIENTATION, 0);
+		DrawStringCentered(74, 76, STR_3003_NUMBER_OF_TRACKS, 0);
+		DrawStringCentered(74, 101, STR_3004_PLATFORM_LENGTH, 0);
+		DrawStringCentered(74, 141, STR_3066_COVERAGE_AREA_HIGHLIGHT, 0);
+
+		DrawStationCoverageAreaText(2, 166, (uint)-1);
+	} break;
+		
+	case WE_CLICK: {
+		switch(e->click.widget) {
+		case 0:
+			ResetObjectToPlace();
+			break;
+		case 3:
+		case 4:
+			_railstation.orientation = e->click.widget - 3;
+			SndPlayFx(0x13);
+			SetWindowDirty(w);
+			break;
+
+		case 5:
+		case 6:
+		case 7:
+		case 8:
+		case 9:
+		case 10:
+		case 11:
+			_railstation.numtracks = (e->click.widget - 5) + 1;
+			_railstation.dragdrop = false;
+			SndPlayFx(0x13);
+			SetWindowDirty(w);
+			break;
+
+		case 12:
+		case 13:
+		case 14:
+		case 15:
+		case 16:
+		case 17:
+		case 18:
+			_railstation.platlength = (e->click.widget - 12) + 1;
+			_railstation.dragdrop = false;
+			SndPlayFx(0x13);
+			SetWindowDirty(w);
+			break;
+
+		case 19:
+			_railstation.dragdrop ^= true;
+			SndPlayFx(0x13);
+			SetWindowDirty(w);
+			break;
+
+		case 20:
+		case 21:
+			_station_show_coverage = e->click.widget - 20;
+			SndPlayFx(0x13);
+			SetWindowDirty(w);
+			break;
+		}
+	} break;
+	
+	case WE_MOUSELOOP: {
+		if (WP(w,def_d).close) {
+			DeleteWindow(w);
+			return;
+		}
+		CheckRedrawStationCoverage(w);
+		} break;
+	}
+}
+
+static const Widget _station_builder_widgets[] = {
+{   WWT_CLOSEBOX,     7,     0,    10,     0,    13, STR_00C5, STR_018B_CLOSE_WINDOW},
+{    WWT_CAPTION,     7,    11,   147,     0,    13, STR_3000_RAIL_STATION_SELECTION, STR_018C_WINDOW_TITLE_DRAG_THIS},
+{      WWT_PANEL,     7,     0,   147,    14,   199, 0x0, 0},
+{      WWT_PANEL,    14,     7,    72,    26,    73, 0x0, STR_304E_SELECT_RAILROAD_STATION},
+{      WWT_PANEL,    14,    75,   140,    26,    73, 0x0, STR_304E_SELECT_RAILROAD_STATION},
+
+{   WWT_CLOSEBOX,    14,    22,    36,    87,    98, STR_00CB_1, STR_304F_SELECT_NUMBER_OF_PLATFORMS},
+{   WWT_CLOSEBOX,    14,    37,    51,    87,    98, STR_00CC_2, STR_304F_SELECT_NUMBER_OF_PLATFORMS},
+{   WWT_CLOSEBOX,    14,    52,    66,    87,    98, STR_00CD_3, STR_304F_SELECT_NUMBER_OF_PLATFORMS},
+{   WWT_CLOSEBOX,    14,    67,    81,    87,    98, STR_00CE_4, STR_304F_SELECT_NUMBER_OF_PLATFORMS},
+{   WWT_CLOSEBOX,    14,    82,    96,    87,    98, STR_00CF_5, STR_304F_SELECT_NUMBER_OF_PLATFORMS},
+{   WWT_CLOSEBOX,    14,    97,   111,    87,    98, STR_0335_6, STR_304F_SELECT_NUMBER_OF_PLATFORMS},
+{   WWT_CLOSEBOX,    14,   112,   126,    87,    98, STR_0336_7, STR_304F_SELECT_NUMBER_OF_PLATFORMS},
+
+{   WWT_CLOSEBOX,    14,    22,    36,   112,   123, STR_00CB_1, STR_3050_SELECT_LENGTH_OF_RAILROAD},
+{   WWT_CLOSEBOX,    14,    37,    51,   112,   123, STR_00CC_2, STR_3050_SELECT_LENGTH_OF_RAILROAD},
+{   WWT_CLOSEBOX,    14,    52,    66,   112,   123, STR_00CD_3, STR_3050_SELECT_LENGTH_OF_RAILROAD},
+{   WWT_CLOSEBOX,    14,    67,    81,   112,   123, STR_00CE_4, STR_3050_SELECT_LENGTH_OF_RAILROAD},
+{   WWT_CLOSEBOX,    14,    82,    96,   112,   123, STR_00CF_5, STR_3050_SELECT_LENGTH_OF_RAILROAD},
+{   WWT_CLOSEBOX,    14,    97,   111,   112,   123, STR_0335_6, STR_3050_SELECT_LENGTH_OF_RAILROAD},
+{   WWT_CLOSEBOX,    14,   112,   126,   112,   123, STR_0336_7, STR_3050_SELECT_LENGTH_OF_RAILROAD},
+
+//{   WWT_CLOSEBOX,    14,    14,    73,   137,   148, STR_02DB_OFF, STR_3065_DON_T_HIGHLIGHT_COVERAGE},
+//{   WWT_CLOSEBOX,    14,    74,   133,   137,   148, STR_02DA_ON, STR_3064_HIGHLIGHT_COVERAGE_AREA},
+{   WWT_CLOSEBOX,    14,    37,   111,   126,   137, STR_DRAG_DROP, STR_STATION_DRAG_DROP},
+{   WWT_CLOSEBOX,    14,    14,    73,   152,   163, STR_02DB_OFF, STR_3065_DON_T_HIGHLIGHT_COVERAGE},
+{   WWT_CLOSEBOX,    14,    74,   133,   152,   163, STR_02DA_ON, STR_3064_HIGHLIGHT_COVERAGE_AREA},
+{      WWT_LAST},
+};
+
+static const WindowDesc _station_builder_desc = {
+	-1, -1, 148, 200,
+	WC_BUILD_STATION,WC_BUILD_TOOLBAR,
+	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,
+	_station_builder_widgets,
+	StationBuildWndProc
+};
+
+static void ShowStationBuilder()
+{
+	AllocateWindowDesc(&_station_builder_desc);
+}
+
+static void BuildTrainDepotWndProc(Window *w, WindowEvent *e)
+{
+	switch(e->event) {
+	case WE_PAINT: {
+		int r;
+
+		w->click_state = (1 << 3) << _build_depot_direction;
+		DrawWindowWidgets(w);
+
+		r = _cur_railtype;
+		DrawTrainDepotSprite(70, 17, 0, r);
+		DrawTrainDepotSprite(70, 69, 1, r);
+		DrawTrainDepotSprite(2, 69, 2, r);
+		DrawTrainDepotSprite(2, 17, 3, r);
+		break;
+		}
+	case WE_CLICK: {
+		switch(e->click.widget) {
+		case 0:
+			ResetObjectToPlace();
+			break;
+		case 3:
+		case 4:
+		case 5:
+		case 6:
+			_build_depot_direction = e->click.widget - 3;
+			SndPlayFx(0x13);
+			SetWindowDirty(w);
+			break;
+		}
+	} break;
+	
+	case WE_MOUSELOOP:
+		if (WP(w,def_d).close)
+			DeleteWindow(w);
+		return;
+	}
+}
+
+static const Widget _build_depot_widgets[] = {
+{   WWT_CLOSEBOX,     7,     0,    10,     0,    13, STR_00C5, STR_018B_CLOSE_WINDOW},
+{    WWT_CAPTION,     7,    11,   139,     0,    13, STR_1014_TRAIN_DEPOT_ORIENTATION,STR_018C_WINDOW_TITLE_DRAG_THIS},
+{      WWT_PANEL,     7,     0,   139,    14,   121, 0x0, 0},
+{      WWT_PANEL,    14,    71,   136,    17,    66, 0x0, STR_1020_SELECT_RAILROAD_DEPOT_ORIENTATIO},
+{      WWT_PANEL,    14,    71,   136,    69,   118, 0x0, STR_1020_SELECT_RAILROAD_DEPOT_ORIENTATIO},
+{      WWT_PANEL,    14,     3,    68,    69,   118, 0x0, STR_1020_SELECT_RAILROAD_DEPOT_ORIENTATIO},
+{      WWT_PANEL,    14,     3,    68,    17,    66, 0x0, STR_1020_SELECT_RAILROAD_DEPOT_ORIENTATIO},
+{      WWT_LAST},
+};
+
+static const WindowDesc _build_depot_desc = {
+	-1,-1, 140, 122,
+	WC_BUILD_DEPOT,WC_BUILD_TOOLBAR,
+	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,
+	_build_depot_widgets,
+	BuildTrainDepotWndProc
+};
+
+static void ShowBuildTrainDepotPicker()
+{
+	AllocateWindowDesc(&_build_depot_desc);
+}
+
+void InitializeRailGui()
+{
+	_build_depot_direction = 3;	
+	_railstation.numtracks = 1;
+	_railstation.platlength = 1;
+	_railstation.dragdrop = true;
+}