tron@2186: /* $Id$ */
tron@2186: 
truelight@2381: #include "../../stdafx.h"
truelight@2381: #include "../../openttd.h"
truelight@2381: #include "../../debug.h"
tron@3157: #include "../../road_map.h"
tron@3946: #include "../../vehicle.h"
rubidium@8612: #include "../../command_func.h"
truelight@2381: #include "trolly.h"
truelight@2381: #include "../../engine.h"
truelight@2381: #include "../../station.h"
truelight@2381: #include "../../variables.h"
celestar@3359: #include "../../bridge.h"
truelight@2682: #include "../ai.h"
truelight@110: 
truelight@110: // Build HQ
truelight@110: //  Params:
truelight@110: //    tile : tile where HQ is going to be build
tron@1977: bool AiNew_Build_CompanyHQ(Player *p, TileIndex tile)
tron@1977: {
truelight@2682: 	if (CmdFailed(AI_DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_BUILD_COMPANY_HQ)))
truelight@110: 		return false;
truelight@2682: 	AI_DoCommand(tile, 0, 0, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_BUILD_COMPANY_HQ);
truelight@110: 	return true;
truelight@110: }
truelight@110: 
tron@2366: 
truelight@110: // Build station
truelight@110: //  Params:
truelight@110: //    type : AI_TRAIN/AI_BUS/AI_TRUCK : indicates the type of station
truelight@110: //    tile : tile where station is going to be build
truelight@110: //    length : in case of AI_TRAIN: length of station
truelight@110: //    numtracks : in case of AI_TRAIN: tracks of station
truelight@110: //    direction : the direction of the station
truelight@110: //    flag : flag passed to DoCommand (normally 0 to get the cost or DC_EXEC to build it)
rubidium@7439: CommandCost AiNew_Build_Station(Player *p, byte type, TileIndex tile, byte length, byte numtracks, byte direction, byte flag)
tron@1977: {
truelight@110: 	if (type == AI_TRAIN)
truelight@2682: 		return AI_DoCommand(tile, direction + (numtracks << 8) + (length << 16), 0, flag | DC_AUTO | DC_NO_WATER, CMD_BUILD_RAILROAD_STATION);
Darkvater@1713: 
Darkvater@1713: 	if (type == AI_BUS)
rubidium@7177: 		return AI_DoCommand(tile, direction, ROADTYPES_ROAD << 2 | RoadStop::BUS, flag | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD_STOP);
Darkvater@1713: 
rubidium@7177: 	return AI_DoCommand(tile, direction, ROADTYPES_ROAD << 2 | RoadStop::TRUCK, flag | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD_STOP);
truelight@110: }
truelight@110: 
tron@2366: 
truelight@110: // Builds a brdige. The second best out of the ones available for this player
truelight@110: //  Params:
truelight@110: //   tile_a : starting point
truelight@110: //   tile_b : end point
truelight@110: //   flag : flag passed to DoCommand
rubidium@7439: CommandCost AiNew_Build_Bridge(Player *p, TileIndex tile_a, TileIndex tile_b, byte flag)
tron@1977: {
truelight@110: 	int bridge_type, bridge_len, type, type2;
truelight@110: 
truelight@110: 	// Find a good bridgetype (the best money can buy)
truelight@110: 	bridge_len = GetBridgeLength(tile_a, tile_b);
truelight@110: 	type = type2 = 0;
truelight@110: 	for (bridge_type = MAX_BRIDGES-1; bridge_type >= 0; bridge_type--) {
truelight@110: 		if (CheckBridge_Stuff(bridge_type, bridge_len)) {
truelight@110: 			type2 = type;
truelight@110: 			type = bridge_type;
truelight@110: 			// We found two bridges, exit
tron@2366: 			if (type2 != 0) break;
truelight@110: 		}
truelight@110: 	}
tron@4000: 	// There is only one bridge that can be built
truelight@110: 	if (type2 == 0 && type != 0) type2 = type;
truelight@110: 
truelight@110: 	// Now, simply, build the bridge!
tron@4000: 	if (p->ainew.tbt == AI_TRAIN) {
tron@4000: 		return AI_DoCommand(tile_a, tile_b, (0x00 << 8) + type2, flag | DC_AUTO, CMD_BUILD_BRIDGE);
tron@4000: 	} else {
rubidium@7177: 		return AI_DoCommand(tile_a, tile_b, ((0x80 | ROADTYPES_ROAD) << 8) + type2, flag | DC_AUTO, CMD_BUILD_BRIDGE);
tron@4000: 	}
truelight@110: }
truelight@110: 
truelight@110: 
truelight@110: // Build the route part by part
truelight@110: // Basicly what this function do, is build that amount of parts of the route
truelight@110: //  that go in the same direction. It sets 'part' to the last part of the route builded.
truelight@110: //  The return value is the cost for the builded parts
truelight@110: //
truelight@110: //  Params:
truelight@110: //   PathFinderInfo : Pointer to the PathFinderInfo used for AiPathFinder
truelight@110: //   part : Which part we need to build
truelight@110: //
truelight@110: // TODO: skip already builded road-pieces (e.g.: cityroad)
rubidium@7439: CommandCost AiNew_Build_RoutePart(Player *p, Ai_PathFinderInfo *PathFinderInfo, byte flag)
tron@2366: {
tron@2366: 	int part = PathFinderInfo->position;
truelight@110: 	byte *route_extra = PathFinderInfo->route_extra;
truelight@110: 	TileIndex *route = PathFinderInfo->route;
truelight@110: 	int dir;
truelight@110: 	int old_dir = -1;
rubidium@7446: 	CommandCost cost;
rubidium@7439: 	CommandCost res;
truelight@110: 	// We need to calculate the direction with the parent of the parent.. so we skip
truelight@110: 	//  the first pieces and the last piece
truelight@110: 	if (part < 1) part = 1;
truelight@110: 	// When we are done, stop it
tron@4000: 	if (part >= PathFinderInfo->route_length - 1) {
tron@4000: 		PathFinderInfo->position = -2;
rubidium@7446: 		return CommandCost();
tron@4000: 	}
truelight@193: 
truelight@193: 
truelight@110: 	if (PathFinderInfo->rail_or_road) {
truelight@110: 		// Tunnel code
tron@2366: 		if ((AI_PATHFINDER_FLAG_TUNNEL & route_extra[part]) != 0) {
rubidium@7446: 			cost.AddCost(AI_DoCommand(route[part], 0, 0, flag, CMD_BUILD_TUNNEL));
tron@2366: 			PathFinderInfo->position++;
tron@2366: 			// TODO: problems!
tron@2366: 			if (CmdFailed(cost)) {
Darkvater@5568: 				DEBUG(ai, 0, "[BuildPath] tunnel could not be built (0x%X)", route[part]);
rubidium@7446: 				return CommandCost();
tron@2366: 			}
tron@2366: 			return cost;
tron@2366: 		}
tron@2366: 		// Bridge code
tron@2366: 		if ((AI_PATHFINDER_FLAG_BRIDGE & route_extra[part]) != 0) {
rubidium@7446: 			cost.AddCost(AiNew_Build_Bridge(p, route[part], route[part - 1], flag));
tron@2366: 			PathFinderInfo->position++;
tron@2366: 			// TODO: problems!
tron@2366: 			if (CmdFailed(cost)) {
Darkvater@5568: 				DEBUG(ai, 0, "[BuildPath] bridge could not be built (0x%X, 0x%X)", route[part], route[part - 1]);
rubidium@7446: 				return CommandCost();
tron@2366: 			}
tron@2366: 			return cost;
tron@2366: 		}
truelight@110: 
tron@2366: 		// Build normal rail
tron@2366: 		// Keep it doing till we go an other way
tron@4000: 		if (route_extra[part - 1] == 0 && route_extra[part] == 0) {
tron@2366: 			while (route_extra[part] == 0) {
tron@2366: 				// Get the current direction
tron@2366: 				dir = AiNew_GetRailDirection(route[part-1], route[part], route[part+1]);
tron@2366: 				// Is it the same as the last one?
tron@2366: 				if (old_dir != -1 && old_dir != dir) break;
tron@2366: 				old_dir = dir;
tron@2366: 				// Build the tile
truelight@2682: 				res = AI_DoCommand(route[part], 0, dir, flag, CMD_BUILD_SINGLE_RAIL);
tron@2366: 				if (CmdFailed(res)) {
tron@2366: 					// Problem.. let's just abort it all!
tron@2366: 					p->ainew.state = AI_STATE_NOTHING;
rubidium@7446: 					return CommandCost();
tron@2366: 				}
rubidium@7446: 				cost.AddCost(res);
tron@2366: 				// Go to the next tile
tron@2366: 				part++;
tron@2366: 				// Check if it is still in range..
tron@2366: 				if (part >= PathFinderInfo->route_length - 1) break;
tron@2366: 			}
tron@2366: 			part--;
tron@2366: 		}
tron@2366: 		// We want to return the last position, so we go back one
tron@2366: 		PathFinderInfo->position = part;
tron@2366: 	} else {
truelight@110: 		// Tunnel code
tron@2366: 		if ((AI_PATHFINDER_FLAG_TUNNEL & route_extra[part]) != 0) {
rubidium@7446: 			cost.AddCost(AI_DoCommand(route[part], 0x200 | ROADTYPES_ROAD, 0, flag, CMD_BUILD_TUNNEL));
tron@2366: 			PathFinderInfo->position++;
tron@2366: 			// TODO: problems!
tron@2366: 			if (CmdFailed(cost)) {
Darkvater@5568: 				DEBUG(ai, 0, "[BuildPath] tunnel could not be built (0x%X)", route[part]);
rubidium@7446: 				return CommandCost();
tron@2366: 			}
tron@2366: 			return cost;
tron@2366: 		}
tron@2366: 		// Bridge code
tron@2366: 		if ((AI_PATHFINDER_FLAG_BRIDGE & route_extra[part]) != 0) {
rubidium@7446: 			cost.AddCost(AiNew_Build_Bridge(p, route[part], route[part + 1], flag));
tron@2366: 			PathFinderInfo->position++;
tron@2366: 			// TODO: problems!
tron@2366: 			if (CmdFailed(cost)) {
Darkvater@5568: 				DEBUG(ai, 0, "[BuildPath] bridge could not be built (0x%X, 0x%X)", route[part], route[part + 1]);
rubidium@7446: 				return CommandCost();
tron@2366: 			}
tron@2366: 			return cost;
tron@2366: 		}
truelight@110: 
tron@2366: 		// Build normal road
tron@2366: 		// Keep it doing till we go an other way
rubidium@8254: 		// EnsureNoVehicleOnGround makes sure we don't build on a tile where a vehicle is. This way
tron@2366: 		//  it will wait till the vehicle is gone..
rubidium@8254: 		if (route_extra[part-1] == 0 && route_extra[part] == 0 && (flag != DC_EXEC || EnsureNoVehicleOnGround(route[part]))) {
rubidium@8254: 			while (route_extra[part] == 0 && (flag != DC_EXEC || EnsureNoVehicleOnGround(route[part]))) {
tron@2366: 				// Get the current direction
tron@2366: 				dir = AiNew_GetRoadDirection(route[part-1], route[part], route[part+1]);
tron@2366: 				// Is it the same as the last one?
tron@2366: 				if (old_dir != -1 && old_dir != dir) break;
tron@2366: 				old_dir = dir;
tron@2366: 				// There is already some road, and it is a bridge.. don't build!!!
tron@2366: 				if (!IsTileType(route[part], MP_TUNNELBRIDGE)) {
tron@2366: 					// Build the tile
truelight@2682: 					res = AI_DoCommand(route[part], dir, 0, flag | DC_NO_WATER, CMD_BUILD_ROAD);
tron@2366: 					// Currently, we ignore CMD_ERRORs!
rubidium@8254: 					if (CmdFailed(res) && flag == DC_EXEC && !IsTileType(route[part], MP_ROAD) && !EnsureNoVehicleOnGround(route[part])) {
tron@2366: 						// Problem.. let's just abort it all!
Darkvater@5568: 						DEBUG(ai, 0, "[BuidPath] route building failed at tile 0x%X, aborting", route[part]);
tron@2366: 						p->ainew.state = AI_STATE_NOTHING;
rubidium@7446: 						return CommandCost();
tron@2366: 					}
Darkvater@1713: 
rubidium@7446: 					if (CmdSucceeded(res)) cost.AddCost(res);
tron@2366: 				}
tron@2366: 				// Go to the next tile
tron@2366: 				part++;
tron@2366: 				// Check if it is still in range..
tron@2366: 				if (part >= PathFinderInfo->route_length - 1) break;
tron@2366: 			}
tron@2366: 			part--;
tron@2366: 			// We want to return the last position, so we go back one
tron@2366: 		}
rubidium@8254: 		if (!EnsureNoVehicleOnGround(route[part]) && flag == DC_EXEC) part--;
tron@2366: 		PathFinderInfo->position = part;
tron@2366: 	}
truelight@193: 
tron@2366: 	return cost;
truelight@110: }
truelight@110: 
tron@2366: 
truelight@110: // This functions tries to find the best vehicle for this type of cargo
tron@3885: // It returns INVALID_ENGINE if not suitable engine is found
tron@3885: EngineID AiNew_PickVehicle(Player *p)
tron@2366: {
tron@2366: 	if (p->ainew.tbt == AI_TRAIN) {
tron@2366: 		// Not supported yet
tron@3885: 		return INVALID_ENGINE;
tron@2366: 	} else {
peter1138@5029: 		EngineID best_veh_index = INVALID_ENGINE;
peter1138@5029: 		int32 best_veh_rating = 0;
peter1138@5016: 		EngineID start = ROAD_ENGINES_INDEX;
peter1138@5016: 		EngineID end   = ROAD_ENGINES_INDEX + NUM_ROAD_ENGINES;
tron@3885: 		EngineID i;
truelight@110: 
peter1138@5030: 		/* Loop through all road vehicles */
peter1138@5030: 		for (i = start; i != end; i++) {
peter1138@5029: 			const RoadVehicleInfo *rvi = RoadVehInfo(i);
tron@3887: 			const Engine* e = GetEngine(i);
peter1138@5029: 			int32 rating;
rubidium@7439: 			CommandCost ret;
tron@3885: 
peter1138@5016: 			/* Skip vehicles which can't take our cargo type */
peter1138@5031: 			if (rvi->cargo_type != p->ainew.cargo && !CanRefitTo(i, p->ainew.cargo)) continue;
peter1138@5016: 
tron@2366: 			// Is it availiable?
tron@2366: 			// Also, check if the reliability of the vehicle is above the AI_VEHICLE_MIN_RELIABILTY
skidd13@8424: 			if (!HasBit(e->player_avail, _current_player) || e->reliability * 100 < AI_VEHICLE_MIN_RELIABILTY << 16) continue;
peter1138@5029: 
peter1138@5029: 			/* Rate and compare the engine by speed & capacity */
peter1138@5029: 			rating = rvi->max_speed * rvi->capacity;
peter1138@5029: 			if (rating <= best_veh_rating) continue;
peter1138@5029: 
tron@2366: 			// Can we build it?
truelight@2682: 			ret = AI_DoCommand(0, i, 0, DC_QUERY_COST, CMD_BUILD_ROAD_VEH);
peter1138@5029: 			if (CmdFailed(ret)) continue;
peter1138@5029: 
peter1138@5029: 			best_veh_rating = rating;
peter1138@5029: 			best_veh_index = i;
tron@2366: 		}
peter1138@5029: 
peter1138@5029: 		return best_veh_index;
tron@2366: 	}
truelight@110: }
truelight@110: 
tron@2366: 
tron@3946: void CcAI(bool success, TileIndex tile, uint32 p1, uint32 p2)
tron@3946: {
tron@3946: 	Player* p = GetPlayer(_current_player);
tron@3946: 
tron@3946: 	if (success) {
tron@3946: 		p->ainew.state = AI_STATE_GIVE_ORDERS;
tron@3946: 		p->ainew.veh_id = _new_vehicle_id;
peter1138@5031: 
peter1138@5031: 		if (GetVehicle(p->ainew.veh_id)->cargo_type != p->ainew.cargo) {
peter1138@5031: 			/* Cargo type doesn't match, so refit it */
peter1138@5031: 			if (CmdFailed(DoCommand(tile, p->ainew.veh_id, p->ainew.cargo, DC_EXEC, CMD_REFIT_ROAD_VEH))) {
peter1138@5031: 				/* Refit failed, so sell the vehicle */
peter1138@5031: 				DoCommand(tile, p->ainew.veh_id, 0, DC_EXEC, CMD_SELL_ROAD_VEH);
peter1138@5031: 				p->ainew.state = AI_STATE_NOTHING;
peter1138@5031: 			}
peter1138@5031: 		}
tron@3946: 	} else {
tron@3946: 		/* XXX this should be handled more gracefully */
tron@3946: 		p->ainew.state = AI_STATE_NOTHING;
tron@3946: 	}
tron@3946: }
tron@3946: 
tron@3946: 
truelight@110: // Builds the best vehicle possible
rubidium@7439: CommandCost AiNew_Build_Vehicle(Player *p, TileIndex tile, byte flag)
tron@1977: {
tron@3885: 	EngineID i = AiNew_PickVehicle(p);
truelight@193: 
tron@3885: 	if (i == INVALID_ENGINE) return CMD_ERROR;
tron@2639: 	if (p->ainew.tbt == AI_TRAIN) return CMD_ERROR;
Darkvater@1713: 
tron@3946: 	if (flag & DC_EXEC) {
tron@3946: 		return AI_DoCommandCc(tile, i, 0, flag, CMD_BUILD_ROAD_VEH, CcAI);
tron@3946: 	} else {
tron@3946: 		return AI_DoCommand(tile, i, 0, flag, CMD_BUILD_ROAD_VEH);
tron@3946: 	}
truelight@110: }
truelight@110: 
rubidium@7439: CommandCost AiNew_Build_Depot(Player* p, TileIndex tile, DiagDirection direction, byte flag)
Darkvater@1713: {
rubidium@7439: 	CommandCost ret, ret2;
tron@4077: 	if (p->ainew.tbt == AI_TRAIN) {
truelight@2682: 		return AI_DoCommand(tile, 0, direction, flag | DC_AUTO | DC_NO_WATER, CMD_BUILD_TRAIN_DEPOT);
tron@4077: 	} else {
tron@4077: 		ret = AI_DoCommand(tile, direction, 0, flag | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD_DEPOT);
rubidium@7446: 		if (CmdFailed(ret2)) return ret;
tron@4077: 		// Try to build the road from the depot
Darkvater@4559: 		ret2 = AI_DoCommand(tile + TileOffsByDiagDir(direction), DiagDirToRoadBits(ReverseDiagDir(direction)), 0, flag | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD);
tron@4077: 		// If it fails, ignore it..
tron@4077: 		if (CmdFailed(ret2)) return ret;
rubidium@7446: 		ret.AddCost(ret2);
rubidium@7446: 		return ret;
tron@4077: 	}
truelight@110: }