truelight@2381: /* $Id$ */
truelight@2381: 
truelight@2381: #include "../../stdafx.h"
truelight@2381: #include "../../openttd.h"
truelight@2381: #include "../../debug.h"
truelight@2381: #include "../../functions.h"
truelight@2381: #include "../../map.h"
tron@3157: #include "../../road_map.h"
truelight@2381: #include "../../tile.h"
tron@3946: #include "../../vehicle.h"
truelight@2381: #include "../../command.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@2381: 
truelight@2381: // Build HQ
truelight@2381: //  Params:
truelight@2381: //    tile : tile where HQ is going to be build
truelight@2381: bool AiNew_Build_CompanyHQ(Player *p, TileIndex tile)
truelight@2381: {
truelight@2682: 	if (CmdFailed(AI_DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_BUILD_COMPANY_HQ)))
truelight@2381: 		return false;
truelight@2682: 	AI_DoCommand(tile, 0, 0, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_BUILD_COMPANY_HQ);
truelight@2381: 	return true;
truelight@2381: }
truelight@2381: 
truelight@2381: 
truelight@2381: // Build station
truelight@2381: //  Params:
truelight@2381: //    type : AI_TRAIN/AI_BUS/AI_TRUCK : indicates the type of station
truelight@2381: //    tile : tile where station is going to be build
truelight@2381: //    length : in case of AI_TRAIN: length of station
truelight@2381: //    numtracks : in case of AI_TRAIN: tracks of station
truelight@2381: //    direction : the direction of the station
truelight@2381: //    flag : flag passed to DoCommand (normally 0 to get the cost or DC_EXEC to build it)
truelight@2381: int AiNew_Build_Station(Player *p, byte type, TileIndex tile, byte length, byte numtracks, byte direction, byte flag)
truelight@2381: {
truelight@2381: 	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);
truelight@2381: 
truelight@2381: 	if (type == AI_BUS)
truelight@2682: 		return AI_DoCommand(tile, direction, RS_BUS, flag | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD_STOP);
truelight@2381: 
truelight@2682: 	return AI_DoCommand(tile, direction, RS_TRUCK, flag | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD_STOP);
truelight@2381: }
truelight@2381: 
truelight@2381: 
truelight@2381: // Builds a brdige. The second best out of the ones available for this player
truelight@2381: //  Params:
truelight@2381: //   tile_a : starting point
truelight@2381: //   tile_b : end point
truelight@2381: //   flag : flag passed to DoCommand
truelight@2381: int AiNew_Build_Bridge(Player *p, TileIndex tile_a, TileIndex tile_b, byte flag)
truelight@2381: {
truelight@2381: 	int bridge_type, bridge_len, type, type2;
truelight@2381: 
truelight@2381: 	// Find a good bridgetype (the best money can buy)
truelight@2381: 	bridge_len = GetBridgeLength(tile_a, tile_b);
truelight@2381: 	type = type2 = 0;
truelight@2381: 	for (bridge_type = MAX_BRIDGES-1; bridge_type >= 0; bridge_type--) {
truelight@2381: 		if (CheckBridge_Stuff(bridge_type, bridge_len)) {
truelight@2381: 			type2 = type;
truelight@2381: 			type = bridge_type;
truelight@2381: 			// We found two bridges, exit
truelight@2381: 			if (type2 != 0) break;
truelight@2381: 		}
truelight@2381: 	}
truelight@2381: 	// There is only one bridge that can be build..
truelight@2381: 	if (type2 == 0 && type != 0) type2 = type;
truelight@2381: 
truelight@2381: 	// Now, simply, build the bridge!
truelight@2381: 	if (p->ainew.tbt == AI_TRAIN)
truelight@2682: 		return AI_DoCommand(tile_a, tile_b, (0<<8) + type2, flag | DC_AUTO, CMD_BUILD_BRIDGE);
truelight@2381: 
truelight@2682: 	return AI_DoCommand(tile_a, tile_b, (0x80 << 8) + type2, flag | DC_AUTO, CMD_BUILD_BRIDGE);
truelight@2381: }
truelight@2381: 
truelight@2381: 
truelight@2381: // Build the route part by part
truelight@2381: // Basicly what this function do, is build that amount of parts of the route
truelight@2381: //  that go in the same direction. It sets 'part' to the last part of the route builded.
truelight@2381: //  The return value is the cost for the builded parts
truelight@2381: //
truelight@2381: //  Params:
truelight@2381: //   PathFinderInfo : Pointer to the PathFinderInfo used for AiPathFinder
truelight@2381: //   part : Which part we need to build
truelight@2381: //
truelight@2381: // TODO: skip already builded road-pieces (e.g.: cityroad)
truelight@2381: int AiNew_Build_RoutePart(Player *p, Ai_PathFinderInfo *PathFinderInfo, byte flag)
truelight@2381: {
truelight@2381: 	int part = PathFinderInfo->position;
truelight@2381: 	byte *route_extra = PathFinderInfo->route_extra;
truelight@2381: 	TileIndex *route = PathFinderInfo->route;
truelight@2381: 	int dir;
truelight@2381: 	int old_dir = -1;
truelight@2381: 	int cost = 0;
truelight@2381: 	int res;
truelight@2381: 	// We need to calculate the direction with the parent of the parent.. so we skip
truelight@2381: 	//  the first pieces and the last piece
truelight@2381: 	if (part < 1) part = 1;
truelight@2381: 	// When we are done, stop it
truelight@2381: 	if (part >= PathFinderInfo->route_length - 1) { PathFinderInfo->position = -2; return 0; }
truelight@2381: 
truelight@2381: 
truelight@2381: 	if (PathFinderInfo->rail_or_road) {
truelight@2381: 		// Tunnel code
truelight@2381: 		if ((AI_PATHFINDER_FLAG_TUNNEL & route_extra[part]) != 0) {
truelight@2682: 			cost += AI_DoCommand(route[part], 0, 0, flag, CMD_BUILD_TUNNEL);
truelight@2381: 			PathFinderInfo->position++;
truelight@2381: 			// TODO: problems!
truelight@2381: 			if (CmdFailed(cost)) {
truelight@2381: 				DEBUG(ai,0)("[AiNew - BuildPath] We have a serious problem: tunnel could not be build!");
truelight@2381: 				return 0;
truelight@2381: 			}
truelight@2381: 			return cost;
truelight@2381: 		}
truelight@2381: 		// Bridge code
truelight@2381: 		if ((AI_PATHFINDER_FLAG_BRIDGE & route_extra[part]) != 0) {
truelight@2381: 			cost += AiNew_Build_Bridge(p, route[part], route[part-1], flag);
truelight@2381: 			PathFinderInfo->position++;
truelight@2381: 			// TODO: problems!
truelight@2381: 			if (CmdFailed(cost)) {
truelight@2381: 				DEBUG(ai,0)("[AiNew - BuildPath] We have a serious problem: bridge could not be build!");
truelight@2381: 				return 0;
truelight@2381: 			}
truelight@2381: 			return cost;
truelight@2381: 		}
truelight@2381: 
truelight@2381: 		// Build normal rail
truelight@2381: 		// Keep it doing till we go an other way
truelight@2381: 		if (route_extra[part-1] == 0 && route_extra[part] == 0) {
truelight@2381: 			while (route_extra[part] == 0) {
truelight@2381: 				// Get the current direction
truelight@2381: 				dir = AiNew_GetRailDirection(route[part-1], route[part], route[part+1]);
truelight@2381: 				// Is it the same as the last one?
truelight@2381: 				if (old_dir != -1 && old_dir != dir) break;
truelight@2381: 				old_dir = dir;
truelight@2381: 				// Build the tile
truelight@2682: 				res = AI_DoCommand(route[part], 0, dir, flag, CMD_BUILD_SINGLE_RAIL);
truelight@2381: 				if (CmdFailed(res)) {
truelight@2381: 					// Problem.. let's just abort it all!
truelight@2381: 					p->ainew.state = AI_STATE_NOTHING;
truelight@2381: 					return 0;
truelight@2381: 				}
truelight@2381: 				cost += res;
truelight@2381: 				// Go to the next tile
truelight@2381: 				part++;
truelight@2381: 				// Check if it is still in range..
truelight@2381: 				if (part >= PathFinderInfo->route_length - 1) break;
truelight@2381: 			}
truelight@2381: 			part--;
truelight@2381: 		}
truelight@2381: 		// We want to return the last position, so we go back one
truelight@2381: 		PathFinderInfo->position = part;
truelight@2381: 	} else {
truelight@2381: 		// Tunnel code
truelight@2381: 		if ((AI_PATHFINDER_FLAG_TUNNEL & route_extra[part]) != 0) {
truelight@2682: 			cost += AI_DoCommand(route[part], 0x200, 0, flag, CMD_BUILD_TUNNEL);
truelight@2381: 			PathFinderInfo->position++;
truelight@2381: 			// TODO: problems!
truelight@2381: 			if (CmdFailed(cost)) {
truelight@2381: 				DEBUG(ai,0)("[AiNew - BuildPath] We have a serious problem: tunnel could not be build!");
truelight@2381: 				return 0;
truelight@2381: 			}
truelight@2381: 			return cost;
truelight@2381: 		}
truelight@2381: 		// Bridge code
truelight@2381: 		if ((AI_PATHFINDER_FLAG_BRIDGE & route_extra[part]) != 0) {
truelight@2381: 			cost += AiNew_Build_Bridge(p, route[part], route[part+1], flag);
truelight@2381: 			PathFinderInfo->position++;
truelight@2381: 			// TODO: problems!
truelight@2381: 			if (CmdFailed(cost)) {
truelight@2381: 				DEBUG(ai,0)("[AiNew - BuildPath] We have a serious problem: bridge could not be build!");
truelight@2381: 				return 0;
truelight@2381: 			}
truelight@2381: 			return cost;
truelight@2381: 		}
truelight@2381: 
truelight@2381: 		// Build normal road
truelight@2381: 		// Keep it doing till we go an other way
truelight@2381: 		// EnsureNoVehicle makes sure we don't build on a tile where a vehicle is. This way
truelight@2381: 		//  it will wait till the vehicle is gone..
truelight@2381: 		if (route_extra[part-1] == 0 && route_extra[part] == 0 && (flag != DC_EXEC || EnsureNoVehicle(route[part]))) {
truelight@2381: 			while (route_extra[part] == 0 && (flag != DC_EXEC || EnsureNoVehicle(route[part]))) {
truelight@2381: 				// Get the current direction
truelight@2381: 				dir = AiNew_GetRoadDirection(route[part-1], route[part], route[part+1]);
truelight@2381: 				// Is it the same as the last one?
truelight@2381: 				if (old_dir != -1 && old_dir != dir) break;
truelight@2381: 				old_dir = dir;
truelight@2381: 				// There is already some road, and it is a bridge.. don't build!!!
truelight@2381: 				if (!IsTileType(route[part], MP_TUNNELBRIDGE)) {
truelight@2381: 					// Build the tile
truelight@2682: 					res = AI_DoCommand(route[part], dir, 0, flag | DC_NO_WATER, CMD_BUILD_ROAD);
truelight@2381: 					// Currently, we ignore CMD_ERRORs!
truelight@2381: 					if (CmdFailed(res) && flag == DC_EXEC && !IsTileType(route[part], MP_STREET) && !EnsureNoVehicle(route[part])) {
truelight@2381: 						// Problem.. let's just abort it all!
truelight@2381: 						DEBUG(ai,0)("Darn, the route could not be builded.. aborting!");
truelight@2381: 						p->ainew.state = AI_STATE_NOTHING;
truelight@2381: 						return 0;
truelight@2381: 					}
truelight@2381: 
truelight@2381: 					if (!CmdFailed(res)) cost += res;
truelight@2381: 				}
truelight@2381: 				// Go to the next tile
truelight@2381: 				part++;
truelight@2381: 				// Check if it is still in range..
truelight@2381: 				if (part >= PathFinderInfo->route_length - 1) break;
truelight@2381: 			}
truelight@2381: 			part--;
truelight@2381: 			// We want to return the last position, so we go back one
truelight@2381: 		}
truelight@2381: 		if (!EnsureNoVehicle(route[part]) && flag == DC_EXEC) part--;
truelight@2381: 		PathFinderInfo->position = part;
truelight@2381: 	}
truelight@2381: 
truelight@2381: 	return cost;
truelight@2381: }
truelight@2381: 
truelight@2381: 
truelight@2381: // 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)
truelight@2381: {
truelight@2381: 	if (p->ainew.tbt == AI_TRAIN) {
truelight@2381: 		// Not supported yet
tron@3885: 		return INVALID_ENGINE;
truelight@2381: 	} else {
tron@3885: 		EngineID start = _cargoc.ai_roadveh_start[p->ainew.cargo];
tron@3885: 		EngineID end = start + _cargoc.ai_roadveh_count[p->ainew.cargo];
tron@3885: 		EngineID i;
truelight@2381: 
truelight@2381: 		// Let's check it backwards.. we simply want to best engine available..
tron@3885: 		for (i = end - 1; i >= start; i--) {
tron@3887: 			const Engine* e = GetEngine(i);
tron@3885: 			int32 ret;
tron@3885: 
truelight@2381: 			// Is it availiable?
truelight@2381: 			// Also, check if the reliability of the vehicle is above the AI_VEHICLE_MIN_RELIABILTY
tron@3887: 			if (!HASBIT(e->player_avail, _current_player) || e->reliability * 100 < AI_VEHICLE_MIN_RELIABILTY << 16) continue;
truelight@2381: 			// Can we build it?
truelight@2682: 			ret = AI_DoCommand(0, i, 0, DC_QUERY_COST, CMD_BUILD_ROAD_VEH);
tron@3885: 			if (!CmdFailed(ret)) return i;
truelight@2381: 		}
truelight@2381: 		// We did not find a vehicle :(
tron@3885: 		return INVALID_ENGINE;
truelight@2381: 	}
truelight@2381: }
truelight@2381: 
truelight@2381: 
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;
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@2381: // Builds the best vehicle possible
truelight@2381: int AiNew_Build_Vehicle(Player *p, TileIndex tile, byte flag)
truelight@2381: {
tron@3885: 	EngineID i = AiNew_PickVehicle(p);
truelight@2381: 
tron@3885: 	if (i == INVALID_ENGINE) return CMD_ERROR;
tron@2639: 	if (p->ainew.tbt == AI_TRAIN) return CMD_ERROR;
truelight@2381: 
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@2381: }
truelight@2381: 
tron@3157: int AiNew_Build_Depot(Player* p, TileIndex tile, DiagDirection direction, byte flag)
truelight@2381: {
truelight@2381: 	int ret, ret2;
truelight@2381: 	if (p->ainew.tbt == AI_TRAIN)
truelight@2682: 		return AI_DoCommand(tile, 0, direction, flag | DC_AUTO | DC_NO_WATER, CMD_BUILD_TRAIN_DEPOT);
truelight@2381: 
truelight@2682: 	ret = AI_DoCommand(tile, direction, 0, flag | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD_DEPOT);
truelight@2381: 	if (CmdFailed(ret)) return ret;
truelight@2381: 	// Try to build the road from the depot
tron@3157: 	ret2 = AI_DoCommand(tile + TileOffsByDir(direction), DiagDirToRoadBits(ReverseDiagDir(direction)), 0, flag | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD);
truelight@2381: 	// If it fails, ignore it..
truelight@2381: 	if (CmdFailed(ret2)) return ret;
truelight@2381: 	return ret + ret2;
truelight@2381: }