mirror of
https://github.com/OpenTTD/OpenTTD
synced 2025-12-10 06:52:05 +01:00
0a1c0b8b48
Tiles can now control if pillars are drawn on a bridge above it. There is no visible change with default bridges.
74 lines
3.2 KiB
C++
74 lines
3.2 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 bridge.h Header file for bridges */
|
|
|
|
#ifndef BRIDGE_H
|
|
#define BRIDGE_H
|
|
|
|
#include "gfx_type.h"
|
|
#include "tile_cmd.h"
|
|
#include "timer/timer_game_calendar.h"
|
|
#include "bridge_type.h"
|
|
|
|
static const uint MAX_BRIDGES = 13; ///< Maximal number of available bridge specs.
|
|
constexpr uint SPRITES_PER_BRIDGE_PIECE = 32; ///< Number of sprites there are per bridge piece.
|
|
|
|
/* Container for Bridge pillar flags for each axis of each bridge middle piece. */
|
|
using BridgeMiddlePillarFlags = std::array<std::array<BridgePillarFlags, AXIS_END>, NUM_BRIDGE_MIDDLE_PIECES>;
|
|
|
|
/**
|
|
* Struct containing information about a single bridge type
|
|
*/
|
|
struct BridgeSpec {
|
|
/** Internal flags about each BridgeSpec. */
|
|
enum class ControlFlag : uint8_t {
|
|
CustomPillarFlags, ///< Bridge has set custom pillar flags.
|
|
InvalidPillarFlags, ///< Bridge pillar flags are not valid, i.e. only the tile layout has been modified.
|
|
};
|
|
using ControlFlags = EnumBitSet<ControlFlag, uint8_t>;
|
|
|
|
TimerGameCalendar::Year avail_year; ///< the year where it becomes available
|
|
uint8_t min_length; ///< the minimum length (not counting start and end tile)
|
|
uint16_t max_length; ///< the maximum length (not counting start and end tile)
|
|
uint16_t price; ///< the price multiplier
|
|
uint16_t speed; ///< maximum travel speed (1 unit = 1/1.6 mph = 1 km-ish/h)
|
|
SpriteID sprite; ///< the sprite which is used in the GUI
|
|
PaletteID pal; ///< the palette which is used in the GUI
|
|
StringID material; ///< the string that contains the bridge description
|
|
StringID transport_name[2]; ///< description of the bridge, when built for road or rail
|
|
std::vector<std::vector<PalSpriteID>> sprite_table; ///< table of sprites for drawing the bridge
|
|
uint8_t flags; ///< bit 0 set: disable drawing of far pillars.
|
|
ControlFlags ctrl_flags{}; ///< control flags
|
|
BridgeMiddlePillarFlags pillar_flags{}; ///< bridge pillar flags.
|
|
};
|
|
|
|
extern BridgeSpec _bridge[MAX_BRIDGES];
|
|
|
|
Foundation GetBridgeFoundation(Slope tileh, Axis axis);
|
|
bool HasBridgeFlatRamp(Slope tileh, Axis axis);
|
|
|
|
/**
|
|
* Get the specification of a bridge type.
|
|
* @param i The type of bridge to get the specification for.
|
|
* @return The specification.
|
|
*/
|
|
inline const BridgeSpec *GetBridgeSpec(BridgeType i)
|
|
{
|
|
assert(i < lengthof(_bridge));
|
|
return &_bridge[i];
|
|
}
|
|
|
|
void DrawBridgeMiddle(const TileInfo *ti, BridgePillarFlags blocked_pillars);
|
|
|
|
CommandCost CheckBridgeAvailability(BridgeType bridge_type, uint bridge_len, DoCommandFlags flags = {});
|
|
int CalcBridgeLenCostFactor(int x);
|
|
|
|
void ResetBridges();
|
|
|
|
#endif /* BRIDGE_H */
|