File diff r1976:fcef181ed14a → r1977:1f8b99c96041
ai.c
Show inline comments
 
@@ -272,90 +272,93 @@ static void AiRestoreVehicleOrders(Vehic
 
	int i;
 

	
 
	for (i = 0; bak->order[i].type != OT_NOTHING; i++)
 
		if (CmdFailed(DoCommandP(0, v->index + (i << 16), PackOrder(&bak->order[i]), NULL, CMD_INSERT_ORDER | CMD_NO_TEST_IF_IN_NETWORK)))
 
			break;
 
}
 

	
 
static void AiHandleReplaceTrain(Player *p)
 
{
 
	Vehicle *v = p->ai.cur_veh;
 
	BackuppedOrders orderbak[1];
 
	int veh;
 
	uint tile;
 

	
 
	// wait until the vehicle reaches the depot.
 
	if (!IsTileDepotType(v->tile, TRANSPORT_RAIL) || v->u.rail.track != 0x80 || !(v->vehstatus&VS_STOPPED)) {
 
		AiHandleGotoDepot(p, CMD_TRAIN_GOTO_DEPOT);
 
		return;
 
	}
 

	
 
	veh = AiChooseTrainToReplaceWith(p, v);
 
	if (veh != -1) {
 
		TileIndex tile;
 

	
 
		BackupVehicleOrders(v, orderbak);
 
		tile = v->tile;
 

	
 
		if (!CmdFailed(DoCommandByTile(0, v->index, 2, DC_EXEC, CMD_SELL_RAIL_WAGON)) &&
 
			  !CmdFailed(DoCommandByTile(tile, veh, 0, DC_EXEC, CMD_BUILD_RAIL_VEHICLE)) ) {
 
			veh = _new_train_id;
 
			AiRestoreVehicleOrders(GetVehicle(veh), orderbak);
 
			DoCommandByTile(0, veh, 0, DC_EXEC, CMD_START_STOP_TRAIN);
 

	
 
			DoCommandByTile(0, veh, _ai_service_interval, DC_EXEC, CMD_CHANGE_TRAIN_SERVICE_INT);
 
		}
 
	}
 
}
 

	
 
static void AiHandleReplaceRoadVeh(Player *p)
 
{
 
	Vehicle *v = p->ai.cur_veh;
 
	BackuppedOrders orderbak[1];
 
	int veh;
 
	uint tile;
 

	
 
	if (!IsTileDepotType(v->tile, TRANSPORT_ROAD) || v->u.road.state != 254 || !(v->vehstatus&VS_STOPPED)) {
 
		AiHandleGotoDepot(p, CMD_SEND_ROADVEH_TO_DEPOT);
 
		return;
 
	}
 

	
 
	veh = AiChooseRoadVehToReplaceWith(p, v);
 
	if (veh != -1) {
 
		TileIndex tile;
 

	
 
		BackupVehicleOrders(v, orderbak);
 
		tile = v->tile;
 

	
 
		if (!CmdFailed(DoCommandByTile(0, v->index, 0, DC_EXEC, CMD_SELL_ROAD_VEH)) &&
 
			  !CmdFailed(DoCommandByTile(tile, veh, 0, DC_EXEC, CMD_BUILD_ROAD_VEH)) ) {
 
			veh = _new_roadveh_id;
 
			AiRestoreVehicleOrders(GetVehicle(veh), orderbak);
 
			DoCommandByTile(0, veh, 0, DC_EXEC, CMD_START_STOP_ROADVEH);
 

	
 
			DoCommandByTile(0, veh, _ai_service_interval, DC_EXEC, CMD_CHANGE_TRAIN_SERVICE_INT);
 
		}
 
	}
 
}
 

	
 
static void AiHandleReplaceAircraft(Player *p)
 
{
 
	Vehicle *v = p->ai.cur_veh;
 
	int veh;
 
	BackuppedOrders orderbak[1];
 
	uint tile;
 

	
 
	if (!IsAircraftHangarTile(v->tile) && !(v->vehstatus&VS_STOPPED)) {
 
		AiHandleGotoDepot(p, CMD_SEND_AIRCRAFT_TO_HANGAR);
 
		return;
 
	}
 

	
 
	veh = AiChooseAircraftToReplaceWith(p, v);
 
	if (veh != -1) {
 
		TileIndex tile;
 

	
 
		BackupVehicleOrders(v, orderbak);
 
		tile = v->tile;
 

	
 
		if (!CmdFailed(DoCommandByTile(0, v->index, 0, DC_EXEC, CMD_SELL_AIRCRAFT)) &&
 
			  !CmdFailed(DoCommandByTile(tile, veh, 0, DC_EXEC, CMD_BUILD_AIRCRAFT)) ) {
 
			veh = _new_aircraft_id;
 
			AiRestoreVehicleOrders(GetVehicle(veh), orderbak);
 
			DoCommandByTile(0, veh, 0, DC_EXEC, CMD_START_STOP_AIRCRAFT);
 

	
 
			DoCommandByTile(0, veh, _ai_service_interval, DC_EXEC, CMD_CHANGE_TRAIN_SERVICE_INT);
 
		}
 
	}
 
@@ -1523,29 +1526,28 @@ static void AiStateWantNewRoute(Player *
 
		// time out?
 
		if (--i == 0) {
 
			if (++p->ai.state_counter == 556) p->ai.state = AIS_0;
 
			break;
 
		}
 
	}
 
}
 

	
 
static bool AiCheckTrackResources(TileIndex tile, const AiDefaultBlockData *p, byte cargo)
 
{
 
	uint values[NUM_CARGO];
 
	int w,h;
 
	uint tile2;
 
	int rad;
 

	
 
	for(;p->mode != 4;p++) if (p->mode == 1) {
 
		tile2 = TILE_ADD(tile, ToTileIndexDiff(p->tileoffs));
 
		TileIndex tile2 = TILE_ADD(tile, ToTileIndexDiff(p->tileoffs));
 

	
 
		w = ((p->attr>>1) & 7);
 
		h = ((p->attr>>4) & 7);
 
		if (p->attr&1) intswap(w, h);
 

	
 

	
 
		if (_patches.modified_catchment) {
 
			rad = CA_TRAIN;
 
		} else {
 
			rad = 4;
 
		}
 

	
 
@@ -1824,25 +1826,25 @@ static TileIndex AiGetEdgeOfDefaultRailB
 
	while (p->mode != 3 || !((--cmd) & 0x80)) p++;
 

	
 
	return tile + ToTileIndexDiff(p->tileoffs) - TileOffsByDir(*dir = p->attr);
 
}
 

	
 
typedef struct AiRailPathFindData {
 
	TileIndex tile;
 
	TileIndex tile2;
 
	int count;
 
	bool flag;
 
} AiRailPathFindData;
 

	
 
static bool AiEnumFollowTrack(uint tile, AiRailPathFindData *a, int track, uint length, byte *state)
 
static bool AiEnumFollowTrack(TileIndex tile, AiRailPathFindData *a, int track, uint length, byte *state)
 
{
 
	if (a->flag)
 
		return true;
 

	
 
	if (length > 20 || tile == a->tile) {
 
		a->flag = true;
 
		return true;
 
	}
 

	
 
	if (DistanceMax(tile, a->tile2) < 4)
 
		a->count++;
 

	
 
@@ -2166,25 +2168,25 @@ static void AiBuildRailConstruct(Player 
 

	
 
	if (arf.best_tile != 0) {
 
		for(i=0; i!=2; i++)
 
			AiDoTerraformLand(arf.best_tile, arf.best_dir, 3, 0);
 
	}
 
}
 

	
 
static bool AiRemoveTileAndGoForward(Player *p)
 
{
 
	byte b;
 
	int bit;
 
	const byte *ptr;
 
	uint tile = p->ai.cur_tile_a;
 
	TileIndex tile = p->ai.cur_tile_a;
 
	int offs;
 
	TileIndex tilenew;
 

	
 
	if (IsTileType(tile, MP_TUNNELBRIDGE)) {
 
		if (!(_map5[tile] & 0x80)) {
 
			// Clear the tunnel and continue at the other side of it.
 
			if (CmdFailed(DoCommandByTile(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR)) )
 
				return false;
 
			p->ai.cur_tile_a = TILE_MASK(_build_tunnel_endtile - TileOffsByDir(p->ai.cur_dir_a));
 
			return true;
 
		}
 

	
 
@@ -2485,25 +2487,26 @@ static bool AiCheckRoadResources(TileInd
 
	int rad;
 

	
 
	if (_patches.modified_catchment) {
 
		rad = CA_TRUCK;		//Same as CA_BUS at the moment?
 
	} else {			//change that at some point?
 
		rad = 4;
 
	}
 

	
 
	for(;;p++) {
 
		if (p->mode == 4) {
 
			return true;
 
		} else if (p->mode == 1) {
 
			uint tile2 = TILE_ADD(tile, ToTileIndexDiff(p->tileoffs));
 
			TileIndex tile2 = TILE_ADD(tile, ToTileIndexDiff(p->tileoffs));
 

	
 
			if (cargo & 0x80) {
 
				GetProductionAroundTiles(values, tile2, 1, 1, rad);
 
				return values[cargo & 0x7F] != 0;
 
			} else {
 
				GetAcceptanceAroundTiles(values, tile2, 1, 1, rad);
 
				return (values[cargo]&~7) != 0;
 
			}
 
		}
 
	}
 
}
 

	
 
static bool _want_road_truck_station;
 
@@ -2756,53 +2759,53 @@ static bool AiCheckRoadPathBetter(AiRoad
 
			arf->best_tile = 0;
 
			better = true;
 
		}
 
	}
 
	arf->recursive_mode = 0;
 
	arf->cur_best_dist = (uint)-1;
 
	arf->cur_best_depth = 0xff;
 

	
 
	return better;
 
}
 

	
 

	
 
static bool AiEnumFollowRoad(uint tile, AiRoadEnum *a, int track, uint length, byte *state)
 
static bool AiEnumFollowRoad(TileIndex tile, AiRoadEnum *a, int track, uint length, byte *state)
 
{
 
	uint dist = DistanceManhattan(tile, a->dest);
 
	uint tile2;
 

	
 
	if (dist <= a->best_dist) {
 
		tile2 = TILE_MASK(tile + TileOffsByDir(_dir_by_track[track]));
 
		TileIndex tile2 = TILE_MASK(tile + TileOffsByDir(_dir_by_track[track]));
 

	
 
		if (IsTileType(tile2, MP_STREET) &&
 
				(_map5[tile2]&0xF0) == 0) {
 
			a->best_dist = dist;
 
			a->best_tile = tile;
 
			a->best_track = track;
 
		}
 
	}
 

	
 
	return false;
 
}
 

	
 
static const uint16 _ai_road_table_and[4] = {
 
	0x1009,
 
	0x16,
 
	0x520,
 
	0x2A00,
 
};
 

	
 
static bool AiCheckRoadFinished(Player *p)
 
{
 
	AiRoadEnum are;
 
	uint tile;
 
	TileIndex tile;
 
	int dir = p->ai.cur_dir_a;
 
	uint32 bits;
 
	int i;
 

	
 
	are.dest = p->ai.cur_tile_b;
 
	tile = TILE_MASK(p->ai.cur_tile_a + TileOffsByDir(dir));
 

	
 
	bits = GetTileTrackStatus(tile, TRANSPORT_ROAD) & _ai_road_table_and[dir];
 
	if (bits == 0) {
 
		return false;
 
	}
 

	
 
@@ -2815,25 +2818,25 @@ static bool AiCheckRoadFinished(Player *
 
	if (DistanceManhattan(tile, are.dest) <= are.best_dist)
 
		return false;
 

	
 
	if (are.best_dist == 0)
 
		return true;
 

	
 
	p->ai.cur_tile_a = are.best_tile;
 
	p->ai.cur_dir_a = _dir_by_track[are.best_track];
 
	return false;
 
}
 

	
 

	
 
static bool AiBuildRoadHelper(uint tile, int flags, int type)
 
static bool AiBuildRoadHelper(TileIndex tile, int flags, int type)
 
{
 
	static const byte _road_bits[] = {
 
		8+2,
 
		1+4,
 
		1+8,
 
		4+2,
 
		1+2,
 
		8+4,
 
	};
 
	return !CmdFailed(DoCommandByTile(tile, _road_bits[type], 0, flags, CMD_BUILD_ROAD));
 
}
 

	
 
@@ -2953,25 +2956,25 @@ static void AiBuildRoadRecursive(AiRoadF
 
	AiCheckBuildRoadTunnelHere(arf, tile, p+1);
 

	
 
	arf->depth--;
 
}
 

	
 
int sw;
 

	
 

	
 
static void AiBuildRoadConstruct(Player *p)
 
{
 
	AiRoadFinder arf;
 
	int i;
 
	uint tile;
 
	TileIndex tile;
 

	
 
	// Reached destination?
 
	if (AiCheckRoadFinished(p)) {
 
		p->ai.state_mode = 255;
 
		return;
 
	}
 

	
 
	// Setup recursive finder and call it.
 
	arf.player = p;
 
	arf.final_tile = p->ai.cur_tile_b;
 
	arf.final_dir = p->ai.cur_dir_b;
 
	arf.depth = 0;
 
@@ -3155,25 +3158,26 @@ static void AiStateBuildRoad(Player *p)
 
}
 

	
 
static int AiGetStationIdFromRoadBlock(TileIndex tile, int id)
 
{
 
	const AiDefaultBlockData *p = _road_default_block_data[id]->data;
 
	while (p->mode != 1) p++;
 
	return _map2[TILE_ADD(tile, ToTileIndexDiff(p->tileoffs))];
 
}
 

	
 
static void AiStateBuildRoadVehicles(Player *p)
 
{
 
	const AiDefaultBlockData *ptr;
 
	uint tile,loco_id;
 
	TileIndex tile;
 
	uint loco_id;
 
	int veh, i;
 

	
 
	ptr = _road_default_block_data[p->ai.src.cur_building_rule]->data;
 
	for(;ptr->mode != 0;ptr++) {}
 
	tile = TILE_ADD(p->ai.src.use_tile, ToTileIndexDiff(ptr->tileoffs));
 

	
 
	veh = AiChooseRoadVehToBuild(p->ai.cargo_type, p->player_money, tile);
 
	if (veh == -1) {
 
		p->ai.state = AIS_0;
 
		return;
 
	}
 

	
 
@@ -3227,25 +3231,26 @@ static void AiStateDeleteRoadBlocks(Play
 
					DoCommandByTile(TILE_ADD(aib->use_tile, ToTileIndexDiff(b->tileoffs)), 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
 
				}
 
				b++;
 
			}
 
		}
 
	} while (++aib,--num);
 

	
 
	p->ai.state = AIS_0;
 
}
 

	
 
static bool AiCheckIfHangar(Station *st)
 
{
 
	uint tile = st->airport_tile;
 
	TileIndex tile = st->airport_tile;
 

	
 
	// HANGAR of airports
 
	// 0x20 - hangar large airport (32)
 
	// 0x41 - hangar small airport (65)
 
	return (_map5[tile] == 32 || _map5[tile] == 65);
 
}
 

	
 
static void AiStateAirportStuff(Player *p)
 
{
 
	Station *st;
 
	byte acc_planes;
 
	int i;
 
	AiBuildRec *aib;
 
@@ -3339,35 +3344,35 @@ static int32 AiDoBuildDefaultAirportBloc
 
		ret = DoCommandByTile(TILE_MASK(tile + ToTileIndexDiff(p->tileoffs)), p->attr,0,flag | DC_AUTO | DC_NO_WATER,CMD_BUILD_AIRPORT);
 
		if (CmdFailed(ret)) return CMD_ERROR;
 
		total_cost += ret;
 
	}
 

	
 
	return total_cost;
 
}
 

	
 
static bool AiCheckAirportResources(TileIndex tile, const AiDefaultBlockData *p, byte cargo)
 
{
 
	uint values[NUM_CARGO];
 
	int w,h;
 
	uint tile2;
 
	int rad;
 

	
 
	if (_patches.modified_catchment) {
 
		rad = CA_AIR_LARGE;		//I Have NFI what airport the
 
	} else {				//AI is going to build here
 
		rad = 4;
 
	}
 

	
 
	for(;p->mode==0;p++) {
 
		tile2 = TILE_ADD(tile, ToTileIndexDiff(p->tileoffs));
 
		TileIndex tile2 = TILE_ADD(tile, ToTileIndexDiff(p->tileoffs));
 

	
 
		w = _airport_size_x[p->attr];
 
		h = _airport_size_y[p->attr];
 
		if (cargo & 0x80) {
 
			GetProductionAroundTiles(values, tile2, w, h, rad);
 
			return values[cargo & 0x7F] != 0;
 
		} else {
 
			GetAcceptanceAroundTiles(values, tile2, w, h, rad);
 
			return values[cargo] >= 8;
 
		}
 
	}
 
	return true;
 
}
 
@@ -3472,25 +3477,25 @@ static void AiStateBuildDefaultAirportBl
 
}
 

	
 
static int AiGetStationIdFromAircraftBlock(TileIndex tile, int id)
 
{
 
	const AiDefaultBlockData *p = _airport_default_block_data[id];
 
	while (p->mode != 1) p++;
 
	return _map2[TILE_ADD(tile, ToTileIndexDiff(p->tileoffs))];
 
}
 

	
 
static void AiStateBuildAircraftVehicles(Player *p)
 
{
 
	const AiDefaultBlockData *ptr;
 
	uint tile;
 
	TileIndex tile;
 
	int veh;
 
	int i;
 
	uint loco_id;
 

	
 
	ptr = _airport_default_block_data[p->ai.src.cur_building_rule];
 
	for(;ptr->mode!=0;ptr++) {}
 

	
 
	tile = TILE_ADD(p->ai.src.use_tile, ToTileIndexDiff(ptr->tileoffs));
 

	
 
	veh = AiChooseAircraftToBuild(p->player_money, p->ai.build_kind!=0 ? 1 : 0);
 
	if (veh == -1) {
 
		return;