signs_cmd.cpp

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00001 /* $Id: signs_cmd.cpp 15704 2009-03-13 23:48:07Z smatz $ */
00002 
00005 #include "stdafx.h"
00006 #include "landscape.h"
00007 #include "company_func.h"
00008 #include "signs_base.h"
00009 #include "signs_func.h"
00010 #include "command_func.h"
00011 #include "tilehighlight_func.h"
00012 #include "window_func.h"
00013 #include "map_func.h"
00014 #include "string_func.h"
00015 
00016 #include "table/strings.h"
00017 
00018 SignID _new_sign_id;
00019 
00029 CommandCost CmdPlaceSign(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00030 {
00031   /* Try to locate a new sign */
00032   if (!Sign::CanAllocateItem()) return_cmd_error(STR_2808_TOO_MANY_SIGNS);
00033 
00034   /* Check sign text length if any */
00035   if (!StrEmpty(text) && strlen(text) >= MAX_LENGTH_SIGN_NAME_BYTES) return CMD_ERROR;
00036 
00037   /* When we execute, really make the sign */
00038   if (flags & DC_EXEC) {
00039     Sign *si = new Sign(_current_company);
00040     int x = TileX(tile) * TILE_SIZE;
00041     int y = TileY(tile) * TILE_SIZE;
00042 
00043     si->x = x;
00044     si->y = y;
00045     si->z = GetSlopeZ(x, y);
00046     if (!StrEmpty(text)) {
00047       si->name = strdup(text);
00048     }
00049     UpdateSignVirtCoords(si);
00050     MarkSignDirty(si);
00051     InvalidateWindowData(WC_SIGN_LIST, 0, 0);
00052     _new_sign_id = si->index;
00053   }
00054 
00055   return CommandCost();
00056 }
00057 
00067 CommandCost CmdRenameSign(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00068 {
00069   if (!IsValidSignID(p1)) return CMD_ERROR;
00070 
00071   /* Rename the signs when empty, otherwise remove it */
00072   if (!StrEmpty(text)) {
00073     if (strlen(text) >= MAX_LENGTH_SIGN_NAME_BYTES) return CMD_ERROR;
00074 
00075     if (flags & DC_EXEC) {
00076       Sign *si = GetSign(p1);
00077 
00078       /* Delete the old name */
00079       free(si->name);
00080       /* Assign the new one */
00081       si->name = strdup(text);
00082       si->owner = _current_company;
00083 
00084       /* Update; mark sign dirty twice, because it can either becom longer, or shorter */
00085       MarkSignDirty(si);
00086       UpdateSignVirtCoords(si);
00087       MarkSignDirty(si);
00088       InvalidateWindowData(WC_SIGN_LIST, 0, 1);
00089     }
00090   } else { // Delete sign
00091     if (flags & DC_EXEC) {
00092       Sign *si = GetSign(p1);
00093 
00094       MarkSignDirty(si);
00095       delete si;
00096 
00097       InvalidateWindowData(WC_SIGN_LIST, 0, 0);
00098     }
00099   }
00100 
00101   return CommandCost();
00102 }
00103 
00111 void CcPlaceSign(bool success, TileIndex tile, uint32 p1, uint32 p2)
00112 {
00113   if (success) {
00114     ShowRenameSignWindow(GetSign(_new_sign_id));
00115     ResetObjectToPlace();
00116   }
00117 }
00118 
00125 void PlaceProc_Sign(TileIndex tile)
00126 {
00127   DoCommandP(tile, 0, 0, CMD_PLACE_SIGN | CMD_MSG(STR_2809_CAN_T_PLACE_SIGN_HERE), CcPlaceSign);
00128 }

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