OpenTTD-patches/src/void_cmd.cpp
Jonathan G Rennison 7949de2c05 Add a minimum visible height and no ground tile parameter to DrawTileProc.
Filter out tile parts which are entirely outside the drawing area.
2020-03-05 23:06:01 +00:00

90 lines
2.8 KiB
C++

/*
* 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/>.
*/
/** @file void_cmd.cpp Handling of void tiles. */
#include "stdafx.h"
#include "landscape.h"
#include "command_func.h"
#include "viewport_func.h"
#include "slope_func.h"
#include "table/strings.h"
#include "table/sprites.h"
#include "safeguards.h"
static void DrawTile_Void(TileInfo *ti, DrawTileProcParams params)
{
DrawGroundSprite(SPR_FLAT_BARE_LAND + SlopeToSpriteOffset(ti->tileh), PALETTE_ALL_BLACK);
}
static int GetSlopePixelZ_Void(TileIndex tile, uint x, uint y)
{
/* This function may be called on tiles outside the map, don't assume
* that 'tile' is a valid tile index. See GetSlopePixelZOutsideMap. */
int z;
Slope tileh = GetTilePixelSlopeOutsideMap(x >> 4, y >> 4, &z);
return z + GetPartialPixelZ(x & 0xF, y & 0xF, tileh);
}
static Foundation GetFoundation_Void(TileIndex tile, Slope tileh)
{
return FOUNDATION_NONE;
}
static CommandCost ClearTile_Void(TileIndex tile, DoCommandFlag flags)
{
return_cmd_error(STR_ERROR_OFF_EDGE_OF_MAP);
}
static void GetTileDesc_Void(TileIndex tile, TileDesc *td)
{
td->str = STR_EMPTY;
td->owner[0] = OWNER_NONE;
}
static void TileLoop_Void(TileIndex tile)
{
/* not used */
}
static void ChangeTileOwner_Void(TileIndex tile, Owner old_owner, Owner new_owner)
{
/* not used */
}
static TrackStatus GetTileTrackStatus_Void(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
{
return 0;
}
static CommandCost TerraformTile_Void(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
{
return_cmd_error(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
};