void_cmd.cpp

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/*
 * This file is part of OpenTTD.
 * 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.
 * 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.
 * 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/>.
 */
 
#include "stdafx.h"
#include "landscape.h"
#include "command_func.h"
#include "viewport_func.h"
#include "slope_func.h"
#include "water.h"
 
#include "table/strings.h"
#include "table/sprites.h"
 
#include "safeguards.h"
 
static void DrawTile_Void(TileInfo *ti)
{
  DrawGroundSprite(SPR_FLAT_BARE_LAND + SlopeToSpriteOffset(ti->tileh), PALETTE_ALL_BLACK);
}
 
 
static int GetSlopePixelZ_Void(TileIndex, uint x, uint y, bool)
{
  /* This function may be called on tiles outside the map, don't assume
   * that 'tile' is a valid tile index. See GetSlopePixelZOutsideMap. */
  auto [tileh, z] = GetTilePixelSlopeOutsideMap(x >> 4, y >> 4);
 
  return z + GetPartialPixelZ(x & 0xF, y & 0xF, tileh);
}
 
static Foundation GetFoundation_Void(TileIndex, Slope)
{
  return FOUNDATION_NONE;
}
 
static CommandCost ClearTile_Void(TileIndex, DoCommandFlag)
{
  return CommandCost(STR_ERROR_OFF_EDGE_OF_MAP);
}
 
 
static void GetTileDesc_Void(TileIndex, TileDesc *td)
{
  td->str = STR_EMPTY;
  td->owner[0] = OWNER_NONE;
}
 
static void TileLoop_Void(TileIndex tile)
{
  /* Floods adjacent edge tile to prevent maps without water. */
  TileLoop_Water(tile);
}
 
static void ChangeTileOwner_Void(TileIndex, Owner, Owner)
{
  /* not used */
}
 
static TrackStatus GetTileTrackStatus_Void(TileIndex, TransportType, uint, DiagDirection)
{
  return 0;
}
 
static CommandCost TerraformTile_Void(TileIndex, DoCommandFlag, int, Slope)
{
  return CommandCost(STR_ERROR_OFF_EDGE_OF_MAP);
}
 
extern const TileTypeProcs _tile_type_void_procs = {
  DrawTile_Void,            // draw_tile_proc
  GetSlopePixelZ_Void,      // get_slope_z_proc
  ClearTile_Void,           // clear_tile_proc
  nullptr,                     // add_accepted_cargo_proc
  GetTileDesc_Void,         // get_tile_desc_proc
  GetTileTrackStatus_Void,  // get_tile_track_status_proc
  nullptr,                     // click_tile_proc
  nullptr,                     // animate_tile_proc
  TileLoop_Void,            // tile_loop_proc
  ChangeTileOwner_Void,     // change_tile_owner_proc
  nullptr,                     // add_produced_cargo_proc
  nullptr,                     // vehicle_enter_tile_proc
  GetFoundation_Void,       // get_foundation_proc
  TerraformTile_Void,       // terraform_tile_proc
};