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https://github.com/OpenTTD/OpenTTD.git
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Peter NelsonandPeter Nelson
6d6e64b1f0
NewGRF stations and roadstops can now specify bridge pillar and minimum height information for their tiles.
65 lines
2.6 KiB
C
65 lines
2.6 KiB
C
/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file bridge_type.h Header file for bridge types. */
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#ifndef BRIDGE_TYPE_H
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#define BRIDGE_TYPE_H
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#include "core/enum_type.hpp"
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using BridgeType = uint; ///< Bridge spec number.
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/**
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* This enum is related to the definition of bridge pieces,
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* which is used to determine the proper sprite table to use
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* while drawing a given bridge part.
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*/
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enum BridgePieces : uint8_t {
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BRIDGE_PIECE_NORTH = 0,
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BRIDGE_PIECE_SOUTH,
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BRIDGE_PIECE_INNER_NORTH,
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BRIDGE_PIECE_INNER_SOUTH,
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BRIDGE_PIECE_MIDDLE_ODD,
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BRIDGE_PIECE_MIDDLE_EVEN,
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BRIDGE_PIECE_HEAD,
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NUM_BRIDGE_PIECES,
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};
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DECLARE_INCREMENT_DECREMENT_OPERATORS(BridgePieces)
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/** Number of bridge middles pieces. This is all bridge pieces except BRIDGE_PIECE_HEAD. */
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static constexpr uint NUM_BRIDGE_MIDDLE_PIECES = NUM_BRIDGE_PIECES - 1;
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/** Obstructed bridge pillars information. */
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enum class BridgePillarFlag : uint8_t {
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/* Corners are in the same order as Corner enum. */
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CornerW = 0, ///< West corner is obstructed.
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CornerS = 1, ///< South corner is obstructed.
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CornerE = 2, ///< East corner is obstructed.
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CornerN = 3, ///< North corner is obstructed.
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/* Edges are in the same order as DiagDirection enum. */
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EdgeNE = 4, //< Northeast edge is obstructed.
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EdgeSE = 5, //< Southeast edge is obstructed.
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EdgeSW = 6, //< Southwest edge is obstructed.
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EdgeNW = 7, //< Northwest edge is obstructed.
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};
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using BridgePillarFlags = EnumBitSet<BridgePillarFlag, uint8_t>;
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static constexpr BridgePillarFlags BRIDGEPILLARFLAGS_ALL{
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BridgePillarFlag::CornerW, BridgePillarFlag::CornerS, BridgePillarFlag::CornerE, BridgePillarFlag::CornerN,
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BridgePillarFlag::EdgeNE, BridgePillarFlag::EdgeSE, BridgePillarFlag::EdgeSW, BridgePillarFlag::EdgeNW,
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};
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/** Information about a tile structure that may have a bridge above. */
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struct BridgeableTileInfo {
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uint8_t height = 0; ///< Minimum height for a bridge above. 0 means a bridge is not allowed.
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BridgePillarFlags disallowed_pillars = BRIDGEPILLARFLAGS_ALL; ///< Disallowed pillar flags for a bridge above
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};
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#endif /* BRIDGE_TYPE_H */
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