# 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 }