diff options
Diffstat (limited to 'advtrains/path.lua')
| -rw-r--r-- | advtrains/path.lua | 53 |
1 files changed, 32 insertions, 21 deletions
diff --git a/advtrains/path.lua b/advtrains/path.lua index f2b8a13..28df529 100644 --- a/advtrains/path.lua +++ b/advtrains/path.lua @@ -33,17 +33,16 @@ -- If you need to proceed along the path by a specific actual distance, it does NOT work to simply add it to the index. You should use the path_get_index_by_offset() function. -- creates the path data structure, reconstructing the train from a position and a connid --- Important! train.drives_on must exist while calling this method -- returns: true - successful -- nil - node not yet available/unloaded, please wait -- false - node definitely gone, remove train function advtrains.path_create(train, pos, connid, rel_index) local posr = advtrains.round_vector_floor_y(pos) - local node_ok, conns, rhe = advtrains.get_rail_info_at(pos, train.drives_on) + local node_ok, conns, rhe, connmap = advtrains.get_rail_info_at(pos) if not node_ok then return node_ok end - local mconnid = advtrains.get_matching_conn(connid, #conns) + local mconnid = advtrains.get_matching_conn(connid, connmap) train.index = rel_index train.path = { [0] = { x=posr.x, y=posr.y+rhe, z=posr.z } } train.path_cn = { [0] = connid } @@ -207,23 +206,19 @@ function advtrains.path_get(train, index) while index > pef do local pos = train.path[pef] local connid = train.path_cn[pef] - local node_ok, this_conns, adj_pos, adj_connid, conn_idx, nextrail_y, next_conns + local node_ok, this_conns, adj_pos, adj_connid, conn_idx, nextrail_y, next_conns, next_connmap if pef == train.path_trk_f then node_ok, this_conns = advtrains.get_rail_info_at(pos) if not node_ok then error("For train "..train.id..": Path item "..pef.." on-track but not a valid node!") end - adj_pos, adj_connid, conn_idx, nextrail_y, next_conns = advtrains.get_adjacent_rail(pos, this_conns, connid, train.drives_on) + adj_pos, adj_connid, conn_idx, nextrail_y, next_conns, next_connmap = advtrains.get_adjacent_rail(pos, this_conns, connid) end pef = pef + 1 if adj_pos then advtrains.occ.set_item(train.id, adj_pos, pef) - - -- If we have split points, notify accordingly - local mconnid = advtrains.get_matching_conn(adj_connid, #next_conns) - if #next_conns==3 and adj_connid==1 and train.points_split and train.points_split[advtrains.encode_pos(adj_pos)] then - --atdebug(id,"has split points restored at",adj_pos) - mconnid = 3 - end - + + local mconnid = advtrains.get_matching_conn(adj_connid, next_connmap) + -- NO split points handling here. It is only required for backwards path calculation + adj_pos.y = adj_pos.y + nextrail_y train.path_cp[pef] = adj_connid train.path_cn[pef] = mconnid @@ -246,23 +241,26 @@ function advtrains.path_get(train, index) while index < peb do local pos = train.path[peb] local connid = train.path_cp[peb] - local node_ok, this_conns, adj_pos, adj_connid, conn_idx, nextrail_y, next_conns + local node_ok, this_conns, adj_pos, adj_connid, conn_idx, nextrail_y, next_conns, next_connmap if peb == train.path_trk_b then node_ok, this_conns = advtrains.get_rail_info_at(pos) if not node_ok then error("For train "..train.id..": Path item "..peb.." on-track but not a valid node!") end - adj_pos, adj_connid, conn_idx, nextrail_y, next_conns = advtrains.get_adjacent_rail(pos, this_conns, connid, train.drives_on) + adj_pos, adj_connid, conn_idx, nextrail_y, next_conns, next_connmap = advtrains.get_adjacent_rail(pos, this_conns, connid) end peb = peb - 1 if adj_pos then advtrains.occ.set_item(train.id, adj_pos, peb) - -- If we have split points, notify accordingly - local mconnid = advtrains.get_matching_conn(adj_connid, #next_conns) - if #next_conns==3 and adj_connid==1 and train.points_split and train.points_split[advtrains.encode_pos(adj_pos)] then - -- atdebug(id,"has split points restored at",adj_pos) - mconnid = 3 + local mconnid = advtrains.get_matching_conn(adj_connid, next_connmap) + -- If, for this position, we have remembered the origin conn, apply it here + if next_connmap then -- only needs to be done when this track is a turnout (>2 conns) + local origin_conn = train.path_ori_cp[advtrains.encode_pos(adj_pos)] + if origin_conn then + atdebug("Train",train.id,"at",adj_pos,"restoring turnout origin CP",origin_conn,"for path item",index) + mconnid = origin_conn + end end - + adj_pos.y = adj_pos.y + nextrail_y train.path_cn[peb] = adj_connid train.path_cp[peb] = mconnid @@ -375,6 +373,19 @@ function advtrains.path_get_index_by_offset(train, index, offset) return c_idx + frac end + +-- The path_dist[] table contains absolute distance values for every whole index. +-- Use this function to retrieve the correct absolute distance for a fractional index value (interpolate between floor and ceil index) +-- returns: absolute distance from path item 0 +function advtrains.path_get_path_dist_fractional(train, index) + local start_index_f = atfloor(index) + local frac = index - start_index_f + -- ensure path exists + advtrains.path_get_adjacent(train, index) + local dist1, dist2 = train.path_dist[start_index_f], train.path_dist[start_index_f+1] + return dist1 + (dist2-dist1)*frac +end + local PATH_CLEAR_KEEP = 4 function advtrains.path_clear_unused(train) |