truelight@9691: /* $Id$ */
truelight@9691: 
truebrain@9833: /** @file ai_marine.cpp Implementation of AIMarine. */
rubidium@9820: 
truelight@9691: #include "ai_marine.hpp"
truebrain@10339: #include "../../openttd.h"
rubidium@9723: #include "../../command_type.h"
truelight@9691: #include "../../variables.h"
truelight@9691: #include "../../station_map.h"
truelight@9691: #include "../../water_map.h"
rubidium@11001: #include "../../tile_cmd.h"
truelight@9691: 
truelight@9691: 
truelight@9691: /* static */ bool AIMarine::IsWaterDepotTile(TileIndex tile)
truelight@9691: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9691: 
truelight@9691: 	return ::IsTileType(tile, MP_WATER) && ::GetWaterTileType(tile) == WATER_TILE_DEPOT;
truelight@9691: }
truelight@9691: 
truelight@9691: /* static */ bool AIMarine::IsDockTile(TileIndex tile)
truelight@9691: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9691: 
truelight@9691: 	return ::IsTileType(tile, MP_STATION) && ::IsDock(tile);
truelight@9691: }
truelight@9691: 
truelight@9691: /* static */ bool AIMarine::IsBuoyTile(TileIndex tile)
truelight@9691: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9691: 
truelight@9691: 	return ::IsTileType(tile, MP_STATION) && ::IsBuoy(tile);
truelight@9691: }
truelight@9691: 
truelight@9691: /* static */ bool AIMarine::IsLockTile(TileIndex tile)
truelight@9691: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9691: 
truelight@9691: 	return ::IsTileType(tile, MP_WATER) && ::GetWaterTileType(tile) == WATER_TILE_LOCK;
truelight@9691: }
truelight@9691: 
truelight@9691: /* static */ bool AIMarine::IsCanalTile(TileIndex tile)
truelight@9691: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9691: 
truelight@9691: 	return ::IsTileType(tile, MP_WATER) && ::IsCanal(tile);
truelight@9691: }
truelight@9691: 
rubidium@11001: /* static */ bool AIMarine::AreWaterTilesConnected(TileIndex t1, TileIndex t2)
rubidium@11001: {
rubidium@11001: 	if (!::IsValidTile(t1)) return false;
rubidium@11001: 	if (!::IsValidTile(t2)) return false;
rubidium@11001: 
rubidium@11001: 	/* Tiles not neighbouring */
rubidium@11001: 	if (::DistanceManhattan(t1, t2) != 1) return false;
rubidium@11001: 	if (t1 > t2) Swap(t1, t2);
rubidium@11001: 
rubidium@11001: 	uint32 gtts1 = ::GetTileTrackStatus(t1, TRANSPORT_WATER, 0);
rubidium@11001: 	uint32 gtts2 = ::GetTileTrackStatus(t2, TRANSPORT_WATER, 0);
rubidium@11001: 
rubidium@11001: 	/* Ship can't travel on one of the tiles. */
rubidium@11001: 	if (gtts1 == 0 || gtts2 == 0) return false;
rubidium@11001: 
rubidium@11001: 	DiagDirection to_other_tile = (TileX(t1) == TileX(t2)) ? DIAGDIR_SE : DIAGDIR_SW;
rubidium@11001: 
rubidium@11001: 	/* Check whether we can 'leave' the tile at the border and 'enter' the other tile at the border */
rubidium@11001: 	return (gtts1 & DiagdirReachesTrackdirs(ReverseDiagDir(to_other_tile))) != 0 && (gtts2 & DiagdirReachesTrackdirs(to_other_tile)) != 0;
rubidium@11001: }
rubidium@11001: 
truebrain@9737: /* static */ bool AIMarine::BuildWaterDepot(TileIndex tile, bool vertical)
truelight@9691: {
rubidium@10094: 	EnforcePrecondition(false, ::IsValidTile(tile));
truelight@9691: 
truebrain@9737: 	return AIObject::DoCommand(tile, vertical, 0, CMD_BUILD_SHIP_DEPOT, false);
truelight@9691: }
truelight@9691: 
truebrain@9737: /* static */ bool AIMarine::BuildDock(TileIndex tile)
truelight@9691: {
rubidium@10094: 	EnforcePrecondition(false, ::IsValidTile(tile));
truelight@9691: 
truebrain@9737: 	return AIObject::DoCommand(tile, 1, 0, CMD_BUILD_DOCK, false);
truelight@9691: }
truelight@9691: 
truebrain@9737: /* static */ bool AIMarine::BuildBuoy(TileIndex tile)
truelight@9691: {
rubidium@10094: 	EnforcePrecondition(false, ::IsValidTile(tile));
truelight@9691: 
truebrain@9737: 	return AIObject::DoCommand(tile, 0, 0, CMD_BUILD_BUOY, false);
truelight@9691: }
truelight@9691: 
truebrain@9737: /* static */ bool AIMarine::BuildLock(TileIndex tile)
truelight@9691: {
rubidium@10094: 	EnforcePrecondition(false, ::IsValidTile(tile));
truelight@9691: 
truebrain@9737: 	return AIObject::DoCommand(tile, 0, 0, CMD_BUILD_LOCK, false);
truelight@9691: }
truelight@9691: 
truebrain@9737: /* static */ bool AIMarine::BuildCanal(TileIndex tile)
truebrain@9737: {
rubidium@10094: 	EnforcePrecondition(false, ::IsValidTile(tile));
truebrain@9737: 
truebrain@9737: 	return AIObject::DoCommand(tile, tile, 0, CMD_BUILD_CANAL, false);
truebrain@9737: }
truebrain@9737: 
truebrain@9737: /* static */ bool AIMarine::RemoveWaterDepot(TileIndex tile)
truelight@9691: {
rubidium@10094: 	EnforcePrecondition(false, ::IsValidTile(tile));
rubidium@10094: 	EnforcePrecondition(false, IsWaterDepotTile(tile));
truelight@9691: 
truebrain@9737: 	return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR, false);
truelight@9691: }
truelight@9691: 
truebrain@9737: /* static */ bool AIMarine::RemoveDock(TileIndex tile)
truelight@9691: {
rubidium@10094: 	EnforcePrecondition(false, ::IsValidTile(tile));
rubidium@10094: 	EnforcePrecondition(false, IsDockTile(tile));
truelight@9691: 
truebrain@9737: 	return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR, false);
truelight@9691: }
truelight@9691: 
truebrain@9737: /* static */ bool AIMarine::RemoveBuoy(TileIndex tile)
truelight@9691: {
rubidium@10094: 	EnforcePrecondition(false, ::IsValidTile(tile));
rubidium@10094: 	EnforcePrecondition(false, IsBuoyTile(tile));
truelight@9691: 
truebrain@9737: 	return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR, false);
truelight@9691: }
truelight@9691: 
truebrain@9737: /* static */ bool AIMarine::RemoveLock(TileIndex tile)
truelight@9691: {
rubidium@10094: 	EnforcePrecondition(false, ::IsValidTile(tile));
rubidium@10094: 	EnforcePrecondition(false, IsLockTile(tile));
truelight@9691: 
truebrain@9737: 	return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR, false);
truelight@9691: }
truelight@9691: 
truebrain@9737: /* static */ bool AIMarine::RemoveCanal(TileIndex tile)
truelight@9691: {
rubidium@10094: 	EnforcePrecondition(false, ::IsValidTile(tile));
rubidium@10094: 	EnforcePrecondition(false, IsCanalTile(tile));
truelight@9691: 
truebrain@9737: 	return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR, false);
truelight@9691: }