# signs_cmd.cpp

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    00001 /* $Id$ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "stdafx.h"
    00013 #include "landscape.h"
    00014 #include "company_func.h"
    00015 #include "signs_base.h"
    00016 #include "signs_func.h"
    00017 #include "command_func.h"
    00018 #include "tilehighlight_func.h"
    00019 #include "window_func.h"
    00020 #include "string_func.h"
    00021
    00022 #include "table/strings.h"
    00023
    00025 SignID _new_sign_id;
    00026
    00038 CommandCost CmdPlaceSign(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00039 {
    00040   /* Try to locate a new sign */
    00041   if (!Sign::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_SIGNS);
    00042
    00043   /* Check sign text length if any */
    00044   if (!StrEmpty(text) && Utf8StringLength(text) >= MAX_LENGTH_SIGN_NAME_CHARS) return CMD_ERROR;
    00045
    00046   /* When we execute, really make the sign */
    00047   if (flags & DC_EXEC) {
    00048     Sign *si = new Sign(_game_mode == GM_EDITOR ? OWNER_DEITY : _current_company);
    00049     int x = TileX(tile) * TILE_SIZE;
    00050     int y = TileY(tile) * TILE_SIZE;
    00051
    00052     si->x = x;
    00053     si->y = y;
    00054     si->z = GetSlopePixelZ(x, y);
    00055     if (!StrEmpty(text)) {
    00056       si->name = strdup(text);
    00057     }
    00058     si->UpdateVirtCoord();
    00059     InvalidateWindowData(WC_SIGN_LIST, 0, 0);
    00060     _new_sign_id = si->index;
    00061   }
    00062
    00063   return CommandCost();
    00064 }
    00065
    00077 CommandCost CmdRenameSign(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00078 {
    00079   Sign *si = Sign::GetIfValid(p1);
    00080   if (si == NULL) return CMD_ERROR;
    00081   if (si->owner == OWNER_DEITY && _current_company != OWNER_DEITY && _game_mode != GM_EDITOR) return CMD_ERROR;
    00082
    00083   /* Rename the signs when empty, otherwise remove it */
    00084   if (!StrEmpty(text)) {
    00085     if (Utf8StringLength(text) >= MAX_LENGTH_SIGN_NAME_CHARS) return CMD_ERROR;
    00086
    00087     if (flags & DC_EXEC) {
    00088       /* Delete the old name */
    00089       free(si->name);
    00090       /* Assign the new one */
    00091       si->name = strdup(text);
    00092       if (_game_mode != GM_EDITOR) si->owner = _current_company;
    00093
    00094       si->UpdateVirtCoord();
    00095       InvalidateWindowData(WC_SIGN_LIST, 0, 1);
    00096     }
    00097   } else { // Delete sign
    00098     if (flags & DC_EXEC) {
    00099       si->sign.MarkDirty();
    00100       delete si;
    00101
    00102       InvalidateWindowData(WC_SIGN_LIST, 0, 0);
    00103     }
    00104   }
    00105
    00106   return CommandCost();
    00107 }
    00108
    00116 void CcPlaceSign(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2)
    00117 {
    00118   if (result.Failed()) return;
    00119
    00120   ShowRenameSignWindow(Sign::Get(_new_sign_id));
    00121   ResetObjectToPlace();
    00122 }
    00123
    00130 void PlaceProc_Sign(TileIndex tile)
    00131 {
    00132   DoCommandP(tile, 0, 0, CMD_PLACE_SIGN | CMD_MSG(STR_ERROR_CAN_T_PLACE_SIGN_HERE), CcPlaceSign);
    00133 }