diff options
| -rw-r--r-- | ai_pathfinder.c | 308 |
1 files changed, 154 insertions, 154 deletions
diff --git a/ai_pathfinder.c b/ai_pathfinder.c index 4b6e15d20..e3c5b37ef 100644 --- a/ai_pathfinder.c +++ b/ai_pathfinder.c @@ -57,7 +57,7 @@ static int32 AyStar_AiPathFinder_EndNodeCheck(AyStar *aystar, OpenListNode *curr if (TILES_BETWEEN(current->path.node.tile, PathFinderInfo->end_tile_tl, PathFinderInfo->end_tile_br)) if (IsTileType(current->path.node.tile, MP_CLEAR) || IsTileType(current->path.node.tile, MP_TREES)) if (current->path.parent == NULL || TestCanBuildStationHere(current->path.node.tile,AiNew_GetDirection(current->path.parent->node.tile, current->path.node.tile))) - return AYSTAR_FOUND_END_NODE; + return AYSTAR_FOUND_END_NODE; return AYSTAR_DONE; } @@ -173,7 +173,7 @@ static void AyStar_AiPathFinder_FoundEndNode(AyStar *aystar, OpenListNode *curre PathNode *parent = ¤t->path; do { - PathFinderInfo->route_extra[i] = parent->node.user_data[0]; + PathFinderInfo->route_extra[i] = parent->node.user_data[0]; PathFinderInfo->route[i++] = parent->node.tile; if (i > lengthof(PathFinderInfo->route)) { // We ran out of space for the PathFinder @@ -189,171 +189,171 @@ static void AyStar_AiPathFinder_FoundEndNode(AyStar *aystar, OpenListNode *curre // What tiles are around us. static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *current) { - uint i; - int ret; - int dir; - - Ai_PathFinderInfo *PathFinderInfo = (Ai_PathFinderInfo*)aystar->user_target; - - aystar->num_neighbours = 0; - - // Go through all surrounding tiles and check if they are within the limits - for (i=0;i<4;i++) { - if (TileX(TileOffsByDir(i) + current->path.node.tile) > 1 && - TileX(TileOffsByDir(i) + current->path.node.tile) < MapMaxX() - 1 && - TileY(TileOffsByDir(i) + current->path.node.tile) > 1 && - TileY(TileOffsByDir(i) + current->path.node.tile) < MapMaxY() - 1) { - // We also directly test if the current tile can connect to this tile.. - // We do this simply by just building the tile! - - // If the next step is a bridge, we have to enter it the right way - if (!PathFinderInfo->rail_or_road && IsRoad(current->path.node.tile + TileOffsByDir(i))) { - if (IsTileType(current->path.node.tile + TileOffsByDir(i), MP_TUNNELBRIDGE)) { - // An existing bridge... let's test the direction ;) - if ((_map5[current->path.node.tile + TileOffsByDir(i)] & 1U) != (i & 1)) continue; - // This problem only is valid for tunnels: - // When the last tile was not yet a tunnel, check if we enter from the right side.. - if ((_map5[current->path.node.tile + TileOffsByDir(i)] & 0x80) == 0) { - if (i != (_map5[current->path.node.tile + TileOffsByDir(i)] & 3U)) continue; - } - } - } - // But also if we are on a bridge, we can only move a certain direction - if (!PathFinderInfo->rail_or_road && IsRoad(current->path.node.tile)) { - if (IsTileType(current->path.node.tile, MP_TUNNELBRIDGE)) { - // An existing bridge/tunnel... let's test the direction ;) - if ((_map5[current->path.node.tile] & 1U) != (i & 1)) continue; - } - } - - if ((AI_PATHFINDER_FLAG_BRIDGE & current->path.node.user_data[0]) != 0 || - (AI_PATHFINDER_FLAG_TUNNEL & current->path.node.user_data[0]) != 0) { - // We are a bridge/tunnel, how cool!! - // This means we can only point forward.. get the direction from the user_data - if (i != (current->path.node.user_data[0] >> 8)) continue; - } - dir = 0; - - // First, check if we have a parent - if (current->path.parent == NULL && current->path.node.user_data[0] == 0) { - // If not, this means we are at the starting station - if (PathFinderInfo->start_direction != AI_PATHFINDER_NO_DIRECTION) { - // We do need a direction? - if (AiNew_GetDirection(current->path.node.tile, current->path.node.tile + TileOffsByDir(i)) != PathFinderInfo->start_direction) - // We are not pointing the right way, invalid tile - continue; - } - } else if (current->path.node.user_data[0] == 0) { - if (PathFinderInfo->rail_or_road) { - // Rail check - dir = AiNew_GetRailDirection(current->path.parent->node.tile, current->path.node.tile, current->path.node.tile + TileOffsByDir(i)); - ret = DoCommandByTile(current->path.node.tile, 0, dir, DC_AUTO | DC_NO_WATER, CMD_BUILD_SINGLE_RAIL); - if (CmdFailed(ret)) continue; + uint i; + int ret; + int dir; + + Ai_PathFinderInfo *PathFinderInfo = (Ai_PathFinderInfo*)aystar->user_target; + + aystar->num_neighbours = 0; + + // Go through all surrounding tiles and check if they are within the limits + for (i = 0; i < 4; i++) { + if (TileX(TileOffsByDir(i) + current->path.node.tile) > 1 && + TileX(TileOffsByDir(i) + current->path.node.tile) < MapMaxX() - 1 && + TileY(TileOffsByDir(i) + current->path.node.tile) > 1 && + TileY(TileOffsByDir(i) + current->path.node.tile) < MapMaxY() - 1) { + // We also directly test if the current tile can connect to this tile.. + // We do this simply by just building the tile! + + // If the next step is a bridge, we have to enter it the right way + if (!PathFinderInfo->rail_or_road && IsRoad(current->path.node.tile + TileOffsByDir(i))) { + if (IsTileType(current->path.node.tile + TileOffsByDir(i), MP_TUNNELBRIDGE)) { + // An existing bridge... let's test the direction ;) + if ((_map5[current->path.node.tile + TileOffsByDir(i)] & 1U) != (i & 1)) continue; + // This problem only is valid for tunnels: + // When the last tile was not yet a tunnel, check if we enter from the right side.. + if ((_map5[current->path.node.tile + TileOffsByDir(i)] & 0x80) == 0) { + if (i != (_map5[current->path.node.tile + TileOffsByDir(i)] & 3U)) continue; + } + } + } + // But also if we are on a bridge, we can only move a certain direction + if (!PathFinderInfo->rail_or_road && IsRoad(current->path.node.tile)) { + if (IsTileType(current->path.node.tile, MP_TUNNELBRIDGE)) { + // An existing bridge/tunnel... let's test the direction ;) + if ((_map5[current->path.node.tile] & 1U) != (i & 1)) continue; + } + } + + if ((AI_PATHFINDER_FLAG_BRIDGE & current->path.node.user_data[0]) != 0 || + (AI_PATHFINDER_FLAG_TUNNEL & current->path.node.user_data[0]) != 0) { + // We are a bridge/tunnel, how cool!! + // This means we can only point forward.. get the direction from the user_data + if (i != (current->path.node.user_data[0] >> 8)) continue; + } + dir = 0; + + // First, check if we have a parent + if (current->path.parent == NULL && current->path.node.user_data[0] == 0) { + // If not, this means we are at the starting station + if (PathFinderInfo->start_direction != AI_PATHFINDER_NO_DIRECTION) { + // We do need a direction? + if (AiNew_GetDirection(current->path.node.tile, current->path.node.tile + TileOffsByDir(i)) != PathFinderInfo->start_direction) { + // We are not pointing the right way, invalid tile + continue; + } + } + } else if (current->path.node.user_data[0] == 0) { + if (PathFinderInfo->rail_or_road) { + // Rail check + dir = AiNew_GetRailDirection(current->path.parent->node.tile, current->path.node.tile, current->path.node.tile + TileOffsByDir(i)); + ret = DoCommandByTile(current->path.node.tile, 0, dir, DC_AUTO | DC_NO_WATER, CMD_BUILD_SINGLE_RAIL); + if (CmdFailed(ret)) continue; #ifdef AI_PATHFINDER_NO_90DEGREES_TURN - if (current->path.parent->parent != NULL) { - // Check if we don't make a 90degree curve - int dir1 = AiNew_GetRailDirection(current->path.parent->parent->node.tile, current->path.parent->node.tile, current->path.node.tile); - if (_illegal_curves[dir1] == dir || _illegal_curves[dir] == dir1) { - continue; - } - } + if (current->path.parent->parent != NULL) { + // Check if we don't make a 90degree curve + int dir1 = AiNew_GetRailDirection(current->path.parent->parent->node.tile, current->path.parent->node.tile, current->path.node.tile); + if (_illegal_curves[dir1] == dir || _illegal_curves[dir] == dir1) { + continue; + } + } #endif - } else { - // Road check - dir = AiNew_GetRoadDirection(current->path.parent->node.tile, current->path.node.tile, current->path.node.tile + TileOffsByDir(i)); - if (IsRoad(current->path.node.tile)) { - if (IsTileType(current->path.node.tile, MP_TUNNELBRIDGE)) { - // We have a bridge, how nicely! We should mark it... - dir = 0; - } else { - // It already has road.. check if we miss any bits! - if ((_map5[current->path.node.tile] & dir) != dir) { - // We do miss some pieces :( - dir &= ~_map5[current->path.node.tile]; - } else { - dir = 0; - } - } - } - // Only destruct things if it is MP_CLEAR of MP_TREES - if (dir != 0) { - ret = DoCommandByTile(current->path.node.tile, dir, 0, DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD); - if (CmdFailed(ret)) continue; - } - } - - } + } else { + // Road check + dir = AiNew_GetRoadDirection(current->path.parent->node.tile, current->path.node.tile, current->path.node.tile + TileOffsByDir(i)); + if (IsRoad(current->path.node.tile)) { + if (IsTileType(current->path.node.tile, MP_TUNNELBRIDGE)) { + // We have a bridge, how nicely! We should mark it... + dir = 0; + } else { + // It already has road.. check if we miss any bits! + if ((_map5[current->path.node.tile] & dir) != dir) { + // We do miss some pieces :( + dir &= ~_map5[current->path.node.tile]; + } else { + dir = 0; + } + } + } + // Only destruct things if it is MP_CLEAR of MP_TREES + if (dir != 0) { + ret = DoCommandByTile(current->path.node.tile, dir, 0, DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD); + if (CmdFailed(ret)) continue; + } + } + } // The tile can be connected - aystar->neighbours[aystar->num_neighbours].tile = TileOffsByDir(i) + current->path.node.tile; - aystar->neighbours[aystar->num_neighbours].user_data[0] = 0; - aystar->neighbours[aystar->num_neighbours++].direction = 0; - } - } - - // Next step, check for bridges and tunnels - if (current->path.parent != NULL && current->path.node.user_data[0] == 0) { - - TileInfo ti; - // First we get the dir from this tile and his parent - int dir = AiNew_GetDirection(current->path.parent->node.tile, current->path.node.tile); - // It means we can only walk with the track, so the bridge has to be in the same direction - TileIndex tile = current->path.node.tile; - TileIndex new_tile = tile; - - FindLandscapeHeightByTile(&ti, tile); - - // Bridges can only be build on land that is not flat - // And if there is a road or rail blocking - if (ti.tileh != 0 || - (PathFinderInfo->rail_or_road && IsTileType(tile + TileOffsByDir(dir), MP_STREET)) || - (!PathFinderInfo->rail_or_road && IsTileType(tile + TileOffsByDir(dir), MP_RAILWAY))) { - - for (;;) { - new_tile += TileOffsByDir(dir); - - // Precheck, is the length allowed? - if (!CheckBridge_Stuff(0,GetBridgeLength(tile, new_tile))) break; - - // Check if we hit the station-tile.. we don't like that! - if (TILES_BETWEEN(new_tile,PathFinderInfo->end_tile_tl,PathFinderInfo->end_tile_br)) break; - - // Try building the bridge.. - ret = DoCommandByTile(tile, new_tile, (0<<8) + (MAX_BRIDGES / 2), DC_AUTO, CMD_BUILD_BRIDGE); - if (CmdFailed(ret)) continue; - // We can build a bridge here.. add him to the neighbours - aystar->neighbours[aystar->num_neighbours].tile = new_tile; - aystar->neighbours[aystar->num_neighbours].user_data[0] = AI_PATHFINDER_FLAG_BRIDGE + (dir << 8); - aystar->neighbours[aystar->num_neighbours++].direction = 0; + aystar->neighbours[aystar->num_neighbours].tile = TileOffsByDir(i) + current->path.node.tile; + aystar->neighbours[aystar->num_neighbours].user_data[0] = 0; + aystar->neighbours[aystar->num_neighbours++].direction = 0; + } + } + + // Next step, check for bridges and tunnels + if (current->path.parent != NULL && current->path.node.user_data[0] == 0) { + + TileInfo ti; + // First we get the dir from this tile and his parent + int dir = AiNew_GetDirection(current->path.parent->node.tile, current->path.node.tile); + // It means we can only walk with the track, so the bridge has to be in the same direction + TileIndex tile = current->path.node.tile; + TileIndex new_tile = tile; + + FindLandscapeHeightByTile(&ti, tile); + + // Bridges can only be build on land that is not flat + // And if there is a road or rail blocking + if (ti.tileh != 0 || + (PathFinderInfo->rail_or_road && IsTileType(tile + TileOffsByDir(dir), MP_STREET)) || + (!PathFinderInfo->rail_or_road && IsTileType(tile + TileOffsByDir(dir), MP_RAILWAY))) { + + for (;;) { + new_tile += TileOffsByDir(dir); + + // Precheck, is the length allowed? + if (!CheckBridge_Stuff(0,GetBridgeLength(tile, new_tile))) break; + + // Check if we hit the station-tile.. we don't like that! + if (TILES_BETWEEN(new_tile,PathFinderInfo->end_tile_tl,PathFinderInfo->end_tile_br)) break; + + // Try building the bridge.. + ret = DoCommandByTile(tile, new_tile, (0<<8) + (MAX_BRIDGES / 2), DC_AUTO, CMD_BUILD_BRIDGE); + if (CmdFailed(ret)) continue; + // We can build a bridge here.. add him to the neighbours + aystar->neighbours[aystar->num_neighbours].tile = new_tile; + aystar->neighbours[aystar->num_neighbours].user_data[0] = AI_PATHFINDER_FLAG_BRIDGE + (dir << 8); + aystar->neighbours[aystar->num_neighbours++].direction = 0; // We can only have 12 neighbours, and we need 1 left for tunnels if (aystar->num_neighbours == 11) break; } - } - - // Next, check for tunnels! - // Tunnels can only be build with tileh of 3, 6, 9 or 12, depending on the direction - // For now, we check both sides for this tile.. terraforming gives fuzzy result - if ((dir == 0 && ti.tileh == 12) || - (dir == 1 && ti.tileh == 6) || - (dir == 2 && ti.tileh == 3) || - (dir == 3 && ti.tileh == 9)) { - // Now simply check if a tunnel can be build - ret = DoCommandByTile(tile, (PathFinderInfo->rail_or_road?0:0x200), 0, DC_AUTO, CMD_BUILD_TUNNEL); - FindLandscapeHeightByTile(&ti, _build_tunnel_endtile); - if (!CmdFailed(ret) && (ti.tileh == 3 || ti.tileh == 6 || ti.tileh == 9 || ti.tileh == 12)) { - aystar->neighbours[aystar->num_neighbours].tile = _build_tunnel_endtile; - aystar->neighbours[aystar->num_neighbours].user_data[0] = AI_PATHFINDER_FLAG_TUNNEL + (dir << 8); - aystar->neighbours[aystar->num_neighbours++].direction = 0; - } - } - } + } + + // Next, check for tunnels! + // Tunnels can only be build with tileh of 3, 6, 9 or 12, depending on the direction + // For now, we check both sides for this tile.. terraforming gives fuzzy result + if ((dir == 0 && ti.tileh == 12) || + (dir == 1 && ti.tileh == 6) || + (dir == 2 && ti.tileh == 3) || + (dir == 3 && ti.tileh == 9)) { + // Now simply check if a tunnel can be build + ret = DoCommandByTile(tile, (PathFinderInfo->rail_or_road?0:0x200), 0, DC_AUTO, CMD_BUILD_TUNNEL); + FindLandscapeHeightByTile(&ti, _build_tunnel_endtile); + if (!CmdFailed(ret) && (ti.tileh == 3 || ti.tileh == 6 || ti.tileh == 9 || ti.tileh == 12)) { + aystar->neighbours[aystar->num_neighbours].tile = _build_tunnel_endtile; + aystar->neighbours[aystar->num_neighbours].user_data[0] = AI_PATHFINDER_FLAG_TUNNEL + (dir << 8); + aystar->neighbours[aystar->num_neighbours++].direction = 0; + } + } + } } extern uint GetRailFoundation(uint tileh, uint bits); extern uint GetRoadFoundation(uint tileh, uint bits); extern uint GetBridgeFoundation(uint tileh, byte direction); enum { - BRIDGE_NO_FOUNDATION = 1 << 0 | 1 << 3 | 1 << 6 | 1 << 9 | 1 << 12, + BRIDGE_NO_FOUNDATION = 1 << 0 | 1 << 3 | 1 << 6 | 1 << 9 | 1 << 12, }; // The most important function: it calculates the g-value |