OpenTTD
signs_cmd.cpp
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1 /* $Id: signs_cmd.cpp 26509 2014-04-25 15:40:32Z rubidium $ */
2 
3 /*
4  * This file is part of OpenTTD.
5  * 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.
6  * 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.
7  * 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/>.
8  */
9 
12 #include "stdafx.h"
13 #include "landscape.h"
14 #include "company_func.h"
15 #include "signs_base.h"
16 #include "signs_func.h"
17 #include "command_func.h"
18 #include "tilehighlight_func.h"
19 #include "window_func.h"
20 #include "string_func.h"
21 
22 #include "table/strings.h"
23 
24 #include "safeguards.h"
25 
28 
40 CommandCost CmdPlaceSign(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
41 {
42  /* Try to locate a new sign */
43  if (!Sign::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_SIGNS);
44 
45  /* Check sign text length if any */
46  if (!StrEmpty(text) && Utf8StringLength(text) >= MAX_LENGTH_SIGN_NAME_CHARS) return CMD_ERROR;
47 
48  /* When we execute, really make the sign */
49  if (flags & DC_EXEC) {
50  Sign *si = new Sign(_game_mode == GM_EDITOR ? OWNER_DEITY : _current_company);
51  int x = TileX(tile) * TILE_SIZE;
52  int y = TileY(tile) * TILE_SIZE;
53 
54  si->x = x;
55  si->y = y;
56  si->z = GetSlopePixelZ(x, y);
57  if (!StrEmpty(text)) {
58  si->name = stredup(text);
59  }
60  si->UpdateVirtCoord();
62  _new_sign_id = si->index;
63  }
64 
65  return CommandCost();
66 }
67 
79 CommandCost CmdRenameSign(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
80 {
81  Sign *si = Sign::GetIfValid(p1);
82  if (si == NULL) return CMD_ERROR;
83  if (si->owner == OWNER_DEITY && _current_company != OWNER_DEITY && _game_mode != GM_EDITOR) return CMD_ERROR;
84 
85  /* Rename the signs when empty, otherwise remove it */
86  if (!StrEmpty(text)) {
88 
89  if (flags & DC_EXEC) {
90  /* Delete the old name */
91  free(si->name);
92  /* Assign the new one */
93  si->name = stredup(text);
94  if (_game_mode != GM_EDITOR) si->owner = _current_company;
95 
96  si->UpdateVirtCoord();
98  }
99  } else { // Delete sign
100  if (flags & DC_EXEC) {
101  si->sign.MarkDirty();
102  delete si;
103 
105  }
106  }
107 
108  return CommandCost();
109 }
110 
118 void CcPlaceSign(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2)
119 {
120  if (result.Failed()) return;
121 
124 }
125 
133 {
134  DoCommandP(tile, 0, 0, CMD_PLACE_SIGN | CMD_MSG(STR_ERROR_CAN_T_PLACE_SIGN_HERE), CcPlaceSign);
135 }