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Location: cpp/openttd-patchpack/source/src/ai/api/ai_tile.cpp - annotation
r15577:a61e44bed2f3
8.7 KiB
text/x-c
(svn r20247) -Fix: when it is known the loading an old savegame is going to fail, bail out immediately (using an exception) instead of going on until e.g. the expected number of byte is read
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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/>.
*/
/** @file ai_tile.cpp Implementation of AITile. */
#include "ai_tile.hpp"
#include "ai_map.hpp"
#include "ai_town.hpp"
#include "../../station_func.h"
#include "../../company_func.h"
#include "../../water_map.h"
#include "../../clear_map.h"
#include "../../tree_map.h"
#include "../../town.h"
#include "../../landscape.h"
#include "../../economy_func.h"
/* static */ bool AITile::IsBuildable(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
switch (::GetTileType(tile)) {
default: return false;
case MP_CLEAR: return true;
case MP_TREES: return true;
case MP_WATER: return IsCoast(tile);
case MP_ROAD:
/* Tram bits aren't considered buildable */
if (::GetRoadTypes(tile) != ROADTYPES_ROAD) return false;
/* Depots and crossings aren't considered buildable */
if (::GetRoadTileType(tile) != ROAD_TILE_NORMAL) return false;
if (!HasExactlyOneBit(::GetRoadBits(tile, ROADTYPE_ROAD))) return false;
if (::IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN)) return true;
if (::IsRoadOwner(tile, ROADTYPE_ROAD, _current_company)) return true;
return false;
}
}
/* static */ bool AITile::IsBuildableRectangle(TileIndex tile, uint width, uint height)
{
uint tx, ty;
tx = AIMap::GetTileX(tile);
ty = AIMap::GetTileY(tile);
for (uint x = tx; x < width + tx; x++) {
for (uint y = ty; y < height + ty; y++) {
if (!IsBuildable(AIMap::GetTileIndex(x, y))) return false;
}
}
return true;
}
/* static */ bool AITile::IsWaterTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsTileType(tile, MP_WATER) && !::IsCoast(tile);
}
/* static */ bool AITile::IsCoastTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return (::IsTileType(tile, MP_WATER) && ::IsCoast(tile)) ||
(::IsTileType(tile, MP_TREES) && ::GetTreeGround(tile) == TREE_GROUND_SHORE);
}
/* static */ bool AITile::IsStationTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsTileType(tile, MP_STATION);
}
/* static */ bool AITile::IsSteepSlope(Slope slope)
{
if ((slope & ~(SLOPE_ELEVATED | SLOPE_STEEP | SLOPE_HALFTILE_MASK)) != 0) return false;
return ::IsSteepSlope((::Slope)slope);
}
/* static */ bool AITile::IsHalftileSlope(Slope slope)
{
if ((slope & ~(SLOPE_ELEVATED | SLOPE_STEEP | SLOPE_HALFTILE_MASK)) != 0) return false;
return ::IsHalftileSlope((::Slope)slope);
}
/* static */ bool AITile::HasTreeOnTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsTileType(tile, MP_TREES);
}
/* static */ bool AITile::IsFarmTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_FIELDS));
}
/* static */ bool AITile::IsRockTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return (::IsTileType(tile, MP_CLEAR) && ::GetRawClearGround(tile) == ::CLEAR_ROCKS);
}
/* static */ bool AITile::IsRoughTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return (::IsTileType(tile, MP_CLEAR) && ::GetRawClearGround(tile) == ::CLEAR_ROUGH);
}
/* static */ bool AITile::IsSnowTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return (::IsTileType(tile, MP_CLEAR) && ::IsSnowTile(tile));
}
/* static */ bool AITile::IsDesertTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_DESERT));
}
/* static */ AITile::Slope AITile::GetSlope(TileIndex tile)
{
if (!::IsValidTile(tile)) return SLOPE_INVALID;
return (Slope)::GetTileSlope(tile, NULL);
}
/* static */ AITile::Slope AITile::GetComplementSlope(Slope slope)
{
if ((slope & ~SLOPE_ELEVATED) != 0) return SLOPE_INVALID;
return (Slope)::ComplementSlope((::Slope)slope);
}
/* static */ int32 AITile::GetMinHeight(TileIndex tile)
{
if (!::IsValidTile(tile)) return -1;
return ::GetTileZ(tile) / ::TILE_HEIGHT;
}
/* static */ int32 AITile::GetMaxHeight(TileIndex tile)
{
if (!::IsValidTile(tile)) return -1;
return ::GetTileMaxZ(tile) / ::TILE_HEIGHT;
}
/* static */ int32 AITile::GetCornerHeight(TileIndex tile, Corner corner)
{
if (!::IsValidTile(tile) || !::IsValidCorner((::Corner)corner)) return -1;
uint z;
::Slope slope = ::GetTileSlope(tile, &z);
return (z + ::GetSlopeZInCorner(slope, (::Corner)corner)) / ::TILE_HEIGHT;
}
/* static */ AICompany::CompanyID AITile::GetOwner(TileIndex tile)
{
if (!::IsValidTile(tile)) return AICompany::COMPANY_INVALID;
if (::IsTileType(tile, MP_HOUSE)) return AICompany::COMPANY_INVALID;
if (::IsTileType(tile, MP_INDUSTRY)) return AICompany::COMPANY_INVALID;
return AICompany::ResolveCompanyID((AICompany::CompanyID)(byte)::GetTileOwner(tile));
}
/* static */ bool AITile::HasTransportType(TileIndex tile, TransportType transport_type)
{
if (!::IsValidTile(tile)) return false;
return ::TrackStatusToTrackdirBits(::GetTileTrackStatus(tile, (::TransportType)transport_type, UINT32_MAX)) != TRACKDIR_BIT_NONE;
}
/* static */ int32 AITile::GetCargoAcceptance(TileIndex tile, CargoID cargo_type, int width, int height, int radius)
{
if (!::IsValidTile(tile) || width <= 0 || height <= 0 || radius < 0) return -1;
CargoArray acceptance = ::GetAcceptanceAroundTiles(tile, width, height, _settings_game.station.modified_catchment ? radius : (int)CA_UNMODIFIED);
return acceptance[cargo_type];
}
/* static */ int32 AITile::GetCargoProduction(TileIndex tile, CargoID cargo_type, int width, int height, int radius)
{
if (!::IsValidTile(tile) || width <= 0 || height <= 0 || radius < 0) return -1;
CargoArray produced = ::GetProductionAroundTiles(tile, width, height, _settings_game.station.modified_catchment ? radius : (int)CA_UNMODIFIED);
return produced[cargo_type];
}
/* static */ int32 AITile::GetDistanceManhattanToTile(TileIndex tile_from, TileIndex tile_to)
{
return AIMap::DistanceManhattan(tile_from, tile_to);
}
/* static */ int32 AITile::GetDistanceSquareToTile(TileIndex tile_from, TileIndex tile_to)
{
return AIMap::DistanceSquare(tile_from, tile_to);
}
/* static */ bool AITile::RaiseTile(TileIndex tile, int32 slope)
{
EnforcePrecondition(false, tile < ::MapSize());
return AIObject::DoCommand(tile, slope, 1, CMD_TERRAFORM_LAND);
}
/* static */ bool AITile::LowerTile(TileIndex tile, int32 slope)
{
EnforcePrecondition(false, tile < ::MapSize());
return AIObject::DoCommand(tile, slope, 0, CMD_TERRAFORM_LAND);
}
/* static */ bool AITile::LevelTiles(TileIndex start_tile, TileIndex end_tile)
{
EnforcePrecondition(false, start_tile < ::MapSize());
EnforcePrecondition(false, end_tile < ::MapSize());
return AIObject::DoCommand(end_tile, start_tile, 0, CMD_LEVEL_LAND);
}
/* static */ bool AITile::DemolishTile(TileIndex tile)
{
EnforcePrecondition(false, ::IsValidTile(tile));
return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR);
}
/* static */ bool AITile::PlantTree(TileIndex tile)
{
EnforcePrecondition(false, ::IsValidTile(tile));
return AIObject::DoCommand(tile, TREE_INVALID, tile, CMD_PLANT_TREE);
}
/* static */ bool AITile::PlantTreeRectangle(TileIndex tile, uint width, uint height)
{
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, width >= 1 && width <= 20);
EnforcePrecondition(false, height >= 1 && height <= 20);
TileIndex end_tile = tile + ::TileDiffXY(width - 1, height - 1);
return AIObject::DoCommand(tile, TREE_INVALID, end_tile, CMD_PLANT_TREE);
}
/* static */ bool AITile::IsWithinTownInfluence(TileIndex tile, TownID town_id)
{
return AITown::IsWithinTownInfluence(town_id, tile);
}
/* static */ TownID AITile::GetClosestTown(TileIndex tile)
{
if (!::IsValidTile(tile)) return INVALID_TOWN;
return ::ClosestTownFromTile(tile, UINT_MAX)->index;
}
/* static */ Money AITile::GetBuildCost(BuildType build_type)
{
switch (build_type) {
case BT_FOUNDATION: return ::GetPrice(PR_BUILD_FOUNDATION, 1, NULL);
case BT_TERRAFORM: return ::GetPrice(PR_TERRAFORM, 1, NULL);
case BT_BUILD_TREES: return ::GetPrice(PR_BUILD_TREES, 1, NULL);
case BT_CLEAR_GRASS: return ::GetPrice(PR_CLEAR_GRASS, 1, NULL);
case BT_CLEAR_ROUGH: return ::GetPrice(PR_CLEAR_ROUGH, 1, NULL);
case BT_CLEAR_ROCKY: return ::GetPrice(PR_CLEAR_ROCKS, 1, NULL);
case BT_CLEAR_FIELDS: return ::GetPrice(PR_CLEAR_FIELDS, 1, NULL);
case BT_CLEAR_HOUSE: return ::GetPrice(PR_CLEAR_HOUSE, 1, NULL);
default: return -1;
}
}
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