truelight@9617: /* $Id$ */
truelight@9617: 
truebrain@9833: /** @file ai_tile.cpp Implementation of AITile. */
truelight@9617: 
truelight@9617: #include "ai_tile.hpp"
truebrain@9814: #include "ai_map.hpp"
rubidium@9723: #include "../../tile_map.h"
rubidium@9723: #include "../../map_func.h"
truelight@9617: #include "../../variables.h"
rubidium@9837: #include "../../station_func.h"
rubidium@9723: #include "../../command_type.h"
rubidium@9724: #include "../../settings_type.h"
truebrain@9769: #include "../../road_map.h"
truelight@9617: 
truebrain@9737: /* static */ bool AITile::IsBuildable(TileIndex tile)
truelight@9617: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9617: 
truelight@9617: 	switch (::GetTileType(tile)) {
glx@9728: 		default: return true;
truelight@9617: 		case MP_VOID:
truelight@9617: 		case MP_HOUSE:
truelight@9617: 		case MP_STATION:
truelight@9617: 		case MP_INDUSTRY:
truelight@9697: 		case MP_UNMOVABLE:
glx@9728: 		case MP_WATER: return false;
truebrain@9769: 
truebrain@9769: 		case MP_ROAD:
truebrain@9769: 			/* Depots aren't considered buildable */
truebrain@9769: 			if (::GetRoadTileType(tile) == ROAD_TILE_DEPOT) return false;
truebrain@9769: 			return true;
truelight@9617: 	}
truelight@9617: }
truelight@9617: 
truebrain@9814: /* static */ bool AITile::IsBuildableRectangle(TileIndex tile, uint width, uint height)
truebrain@9814: {
truebrain@9814: 	uint tx, ty;
truebrain@9814: 
truebrain@9814: 	tx = AIMap::GetTileX(tile);
truebrain@9814: 	ty = AIMap::GetTileY(tile);
truebrain@9814: 
truebrain@9814: 	for (uint x = tx; x < width + tx; x++) {
truebrain@9814: 		for (uint y = ty; y < height + ty; y++) {
truebrain@9814: 			if (!IsBuildable(AIMap::GetTileIndex(x, y))) return false;
truebrain@9814: 		}
truebrain@9814: 	}
truebrain@9814: 
truebrain@9814: 	return true;
truebrain@9814: }
truebrain@9814: 
truebrain@9737: /* static */ bool AITile::IsWater(TileIndex tile)
truelight@9698: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9698: 
truelight@9698: 	return ::GetTileType(tile) == MP_WATER;
truelight@9698: }
truelight@9698: 
truebrain@9737: /* static */ int32 AITile::GetSlope(TileIndex tile)
truelight@9617: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9617: 
truelight@9700: 	return ::GetTileSlope(tile, NULL);
truelight@9700: }
truelight@9700: 
truebrain@9737: /* static */ int32 AITile::GetHeight(TileIndex tile)
truelight@9700: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9700: 
truelight@9700: 	return ::TileHeight(tile);
truelight@9617: }
truelight@9617: 
truebrain@9737: /* static */ int32 AITile::GetCargoAcceptance(TileIndex tile, CargoID cargo_type, uint width, uint height, uint radius)
truelight@9617: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9617: 
truelight@9617: 	AcceptedCargo accepts;
truebrain@9736: 	::GetAcceptanceAroundTiles(accepts, tile, width, height, _patches.modified_catchment ? radius : (uint)CA_UNMODIFIED);
truelight@9617: 	return accepts[cargo_type];
truelight@9617: }
truelight@9708: 
truebrain@9737: /* static */ int32 AITile::GetCargoProduction(TileIndex tile, CargoID cargo_type, uint width, uint height, uint radius)
glx@9729: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
glx@9729: 
glx@9729: 	AcceptedCargo produced;
truebrain@9736: 	::GetProductionAroundTiles(produced, tile, width, height, _patches.modified_catchment ? radius : (uint)CA_UNMODIFIED);
glx@9729: 	return produced[cargo_type];
glx@9729: }
glx@9729: 
truebrain@9834: /* static */ int32 AITile::GetDistanceManhattanToTile(TileIndex tile_from, TileIndex tile_to)
truebrain@9834: {
truebrain@9834: 	return AIMap::DistanceManhattan(tile_from, tile_to);
truebrain@9834: }
truebrain@9834: 
truebrain@9834: /* static */ int32 AITile::GetDistanceSquareToTile(TileIndex tile_from, TileIndex tile_to)
truebrain@9834: {
truebrain@9834: 	return AIMap::DistanceSquare(tile_from, tile_to);
truebrain@9834: }
truebrain@9834: 
truebrain@9737: /* static */ bool AITile::RaiseTile(TileIndex tile, int32 slope)
truelight@9708: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9708: 
truebrain@9737: 	return AIObject::DoCommand(tile, slope, 1, CMD_TERRAFORM_LAND);
truelight@9708: }
truelight@9708: 
truebrain@9737: /* static */ bool AITile::LowerTile(TileIndex tile, int32 slope)
truelight@9708: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9708: 
truebrain@9737: 	return AIObject::DoCommand(tile, slope, 0, CMD_TERRAFORM_LAND);
truelight@9708: }
truebrain@9814: 
truebrain@9834: /* static */ bool AITile::DemolishTile(TileIndex t)
truebrain@9814: {
truebrain@9834: 	return AIObject::DoCommand(t, 0, 0, CMD_LANDSCAPE_CLEAR);
truebrain@9814: }