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Location: cpp/openttd-patchpack/source/src/script/api/script_bridge.cpp
r24794:5703ff4448b2
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | /*
* 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 script_bridge.cpp Implementation of ScriptBridge. */
#include "../../stdafx.h"
#include "script_bridge.hpp"
#include "script_rail.hpp"
#include "../script_instance.hpp"
#include "../../bridge_map.h"
#include "../../strings_func.h"
#include "../../date_func.h"
#include "table/strings.h"
#include "../../safeguards.h"
/* static */ bool ScriptBridge::IsValidBridge(BridgeID bridge_id)
{
return bridge_id < MAX_BRIDGES && ::GetBridgeSpec(bridge_id)->avail_year <= _cur_year;
}
/* static */ bool ScriptBridge::IsBridgeTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsBridgeTile(tile);
}
/* static */ BridgeID ScriptBridge::GetBridgeID(TileIndex tile)
{
if (!IsBridgeTile(tile)) return (BridgeID)-1;
return (BridgeID)::GetBridgeType(tile);
}
/**
* Helper function to connect a just built bridge to nearby roads.
* @param instance The script instance we have to built the road for.
*/
static void _DoCommandReturnBuildBridge2(class ScriptInstance *instance)
{
if (!ScriptBridge::_BuildBridgeRoad2()) {
ScriptInstance::DoCommandReturn(instance);
return;
}
/* This can never happen, as in test-mode this callback is never executed,
* and in execute-mode, the other callback is called. */
NOT_REACHED();
}
/**
* Helper function to connect a just built bridge to nearby roads.
* @param instance The script instance we have to built the road for.
*/
static void _DoCommandReturnBuildBridge1(class ScriptInstance *instance)
{
if (!ScriptBridge::_BuildBridgeRoad1()) {
ScriptInstance::DoCommandReturn(instance);
return;
}
/* This can never happen, as in test-mode this callback is never executed,
* and in execute-mode, the other callback is called. */
NOT_REACHED();
}
/* static */ bool ScriptBridge::BuildBridge(ScriptVehicle::VehicleType vehicle_type, BridgeID bridge_id, TileIndex start, TileIndex end)
{
EnforcePrecondition(false, start != end);
EnforcePrecondition(false, ::IsValidTile(start) && ::IsValidTile(end));
EnforcePrecondition(false, TileX(start) == TileX(end) || TileY(start) == TileY(end));
EnforcePrecondition(false, vehicle_type == ScriptVehicle::VT_ROAD || vehicle_type == ScriptVehicle::VT_RAIL || vehicle_type == ScriptVehicle::VT_WATER);
EnforcePrecondition(false, vehicle_type != ScriptVehicle::VT_RAIL || ScriptRail::IsRailTypeAvailable(ScriptRail::GetCurrentRailType()));
EnforcePrecondition(false, vehicle_type != ScriptVehicle::VT_ROAD || ScriptRoad::IsRoadTypeAvailable(ScriptRoad::GetCurrentRoadType()));
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY || vehicle_type == ScriptVehicle::VT_ROAD);
uint type = 0;
switch (vehicle_type) {
case ScriptVehicle::VT_ROAD:
type |= (TRANSPORT_ROAD << 15);
type |= (ScriptRoad::GetCurrentRoadType() << 8);
break;
case ScriptVehicle::VT_RAIL:
type |= (TRANSPORT_RAIL << 15);
type |= (ScriptRail::GetCurrentRailType() << 8);
break;
case ScriptVehicle::VT_WATER:
type |= (TRANSPORT_WATER << 15);
break;
default: NOT_REACHED();
}
/* For rail and water we do nothing special */
if (vehicle_type == ScriptVehicle::VT_RAIL || vehicle_type == ScriptVehicle::VT_WATER) {
return ScriptObject::DoCommand(end, start, type | bridge_id, CMD_BUILD_BRIDGE);
}
ScriptObject::SetCallbackVariable(0, start);
ScriptObject::SetCallbackVariable(1, end);
return ScriptObject::DoCommand(end, start, type | bridge_id, CMD_BUILD_BRIDGE, nullptr, &::_DoCommandReturnBuildBridge1);
}
/* static */ bool ScriptBridge::_BuildBridgeRoad1()
{
/* Build the piece of road on the 'start' side of the bridge */
TileIndex end = ScriptObject::GetCallbackVariable(0);
TileIndex start = ScriptObject::GetCallbackVariable(1);
DiagDirection dir_1 = ::DiagdirBetweenTiles(end, start);
DiagDirection dir_2 = ::ReverseDiagDir(dir_1);
return ScriptObject::DoCommand(start + ::TileOffsByDiagDir(dir_1), ::DiagDirToRoadBits(dir_2) | (ScriptRoad::GetCurrentRoadType() << 4), 0, CMD_BUILD_ROAD, nullptr, &::_DoCommandReturnBuildBridge2);
}
/* static */ bool ScriptBridge::_BuildBridgeRoad2()
{
/* Build the piece of road on the 'end' side of the bridge */
TileIndex end = ScriptObject::GetCallbackVariable(0);
TileIndex start = ScriptObject::GetCallbackVariable(1);
DiagDirection dir_1 = ::DiagdirBetweenTiles(end, start);
DiagDirection dir_2 = ::ReverseDiagDir(dir_1);
return ScriptObject::DoCommand(end + ::TileOffsByDiagDir(dir_2), ::DiagDirToRoadBits(dir_1) | (ScriptRoad::GetCurrentRoadType() << 4), 0, CMD_BUILD_ROAD);
}
/* static */ bool ScriptBridge::RemoveBridge(TileIndex tile)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
EnforcePrecondition(false, IsBridgeTile(tile));
return ScriptObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR);
}
/* static */ char *ScriptBridge::GetName(BridgeID bridge_id, ScriptVehicle::VehicleType vehicle_type)
{
EnforcePrecondition(nullptr, vehicle_type == ScriptVehicle::VT_ROAD || vehicle_type == ScriptVehicle::VT_RAIL || vehicle_type == ScriptVehicle::VT_WATER);
if (!IsValidBridge(bridge_id)) return nullptr;
return GetString(vehicle_type == ScriptVehicle::VT_WATER ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : ::GetBridgeSpec(bridge_id)->transport_name[vehicle_type]);
}
/* static */ int32 ScriptBridge::GetMaxSpeed(BridgeID bridge_id)
{
if (!IsValidBridge(bridge_id)) return -1;
return ::GetBridgeSpec(bridge_id)->speed; // km-ish/h
}
/* static */ Money ScriptBridge::GetPrice(BridgeID bridge_id, uint length)
{
if (!IsValidBridge(bridge_id)) return -1;
return ::CalcBridgeLenCostFactor(length) * _price[PR_BUILD_BRIDGE] * ::GetBridgeSpec(bridge_id)->price >> 8;
}
/* static */ int32 ScriptBridge::GetMaxLength(BridgeID bridge_id)
{
if (!IsValidBridge(bridge_id)) return -1;
return std::min(::GetBridgeSpec(bridge_id)->max_length, _settings_game.construction.max_bridge_length) + 2;
}
/* static */ int32 ScriptBridge::GetMinLength(BridgeID bridge_id)
{
if (!IsValidBridge(bridge_id)) return -1;
return ::GetBridgeSpec(bridge_id)->min_length + 2;
}
/* static */ TileIndex ScriptBridge::GetOtherBridgeEnd(TileIndex tile)
{
if (!::IsValidTile(tile)) return INVALID_TILE;
if (!IsBridgeTile(tile)) return INVALID_TILE;
return ::GetOtherBridgeEnd(tile);
}
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