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@ r11049:6eb2c87ed64a
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Location: cpp/openttd-patchpack/source/src/ai/api/ai_tunnel.cpp
r11049:6eb2c87ed64a
3.9 KiB
text/x-c
(svn r15389) -Feature: Add ability to select which base graphics set is used from the Game Options window. The change takes effect when the window is closed. This option can only be used from the intro menu, as reloading graphics during a game may cause issues.
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/** @file ai_tunnel.cpp Implementation of AITunnel. */
#include "ai_tunnel.hpp"
#include "ai_rail.hpp"
#include "../ai_instance.hpp"
#include "../../tunnel_map.h"
#include "../../command_func.h"
#include "../../tunnelbridge.h"
#include "../../road_func.h"
/* static */ bool AITunnel::IsTunnelTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsTunnelTile(tile);
}
/* static */ TileIndex AITunnel::GetOtherTunnelEnd(TileIndex tile)
{
if (!::IsValidTile(tile)) return INVALID_TILE;
/* If it's a tunnel alread, take the easy way out! */
if (IsTunnelTile(tile)) return ::GetOtherTunnelEnd(tile);
::DoCommand(tile, 0, 0, DC_AUTO, CMD_BUILD_TUNNEL);
return _build_tunnel_endtile == 0 ? INVALID_TILE : _build_tunnel_endtile;
}
static void _DoCommandReturnBuildTunnel2(class AIInstance *instance)
{
if (!AITunnel::_BuildTunnelRoad2()) {
AIObject::SetLastCommandRes(false);
AIInstance::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 void _DoCommandReturnBuildTunnel1(class AIInstance *instance)
{
if (!AITunnel::_BuildTunnelRoad1()) {
AIObject::SetLastCommandRes(false);
AIInstance::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 AITunnel::BuildTunnel(AIVehicle::VehicleType vehicle_type, TileIndex start)
{
EnforcePrecondition(false, ::IsValidTile(start));
EnforcePrecondition(false, vehicle_type == AIVehicle::VT_RAIL || vehicle_type == AIVehicle::VT_ROAD);
EnforcePrecondition(false, vehicle_type != AIVehicle::VT_RAIL || AIRail::IsRailTypeAvailable(AIRail::GetCurrentRailType()));
uint type = 0;
if (vehicle_type == AIVehicle::VT_ROAD) {
type |= (TRANSPORT_ROAD << 9);
type |= RoadTypeToRoadTypes((::RoadType)AIObject::GetRoadType());
} else {
type |= (TRANSPORT_RAIL << 9);
type |= AIRail::GetCurrentRailType();
}
/* For rail we do nothing special */
if (vehicle_type == AIVehicle::VT_RAIL) {
return AIObject::DoCommand(start, type, 0, CMD_BUILD_TUNNEL);
}
AIObject::SetCallbackVariable(0, start);
if (!AIObject::DoCommand(start, type, 0, CMD_BUILD_TUNNEL, NULL, &_DoCommandReturnBuildTunnel1)) return false;
/* In case of test-mode, test if we can build both road pieces */
return _BuildTunnelRoad1();
}
/* static */ bool AITunnel::_BuildTunnelRoad1()
{
/* Build the piece of road on the 'start' side of the tunnel */
TileIndex end = AIObject::GetCallbackVariable(0);
TileIndex start = AITunnel::GetOtherTunnelEnd(end);
DiagDirection dir_1 = (DiagDirection)((::TileX(start) == ::TileX(end)) ? (::TileY(start) < ::TileY(end) ? DIAGDIR_NW : DIAGDIR_SE) : (::TileX(start) < ::TileX(end) ? DIAGDIR_NE : DIAGDIR_SW));
DiagDirection dir_2 = ::ReverseDiagDir(dir_1);
if (!AIObject::DoCommand(start + ::TileOffsByDiagDir(dir_1), ::DiagDirToRoadBits(dir_2) | (AIObject::GetRoadType() << 4), 0, CMD_BUILD_ROAD, NULL, &_DoCommandReturnBuildTunnel2)) return false;
/* In case of test-mode, test the other road piece too */
return _BuildTunnelRoad2();
}
/* static */ bool AITunnel::_BuildTunnelRoad2()
{
/* Build the piece of road on the 'end' side of the tunnel */
TileIndex end = AIObject::GetCallbackVariable(0);
TileIndex start = AITunnel::GetOtherTunnelEnd(end);
DiagDirection dir_1 = (DiagDirection)((::TileX(start) == ::TileX(end)) ? (::TileY(start) < ::TileY(end) ? DIAGDIR_NW : DIAGDIR_SE) : (::TileX(start) < ::TileX(end) ? DIAGDIR_NE : DIAGDIR_SW));
DiagDirection dir_2 = ::ReverseDiagDir(dir_1);
return AIObject::DoCommand(end + ::TileOffsByDiagDir(dir_2), ::DiagDirToRoadBits(dir_1) | (AIObject::GetRoadType() << 4), 0, CMD_BUILD_ROAD);
}
/* static */ bool AITunnel::RemoveTunnel(TileIndex tile)
{
EnforcePrecondition(false, IsTunnelTile(tile));
return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR);
}
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