diff options
Diffstat (limited to 'advtrains_line_automation/railwaytime.lua')
| -rw-r--r-- | advtrains_line_automation/railwaytime.lua | 181 |
1 files changed, 140 insertions, 41 deletions
diff --git a/advtrains_line_automation/railwaytime.lua b/advtrains_line_automation/railwaytime.lua index 1c6e31f..0e222d2 100644 --- a/advtrains_line_automation/railwaytime.lua +++ b/advtrains_line_automation/railwaytime.lua @@ -13,6 +13,8 @@ -- 43;3 22;0 2;30 0;10 ;10 -- Those places are then filled with zeroes. Indeed, ";" would be valid for 00;00 . +-- Using negative times is discouraged. If you need a negative time, you may insert a minus (-) ONLY in the "c" place + --[[ 1;23;45 = { s=45, @@ -20,6 +22,14 @@ c=1, -- Cycle(~hour), not displayed most time } +Railway times can exist in 3 forms: +- as table (see above) +- as string (like "12;34") +- as number (of seconds) + +Forms are automagically converted as needed by the converter functions to_* +To be sure a rwt is in the required form, explicitly use a converter. + ]] local rwt = {} @@ -43,7 +53,7 @@ function rwt.step(dt) end function rwt.now() - return rwt.from_sec(e_time) + return rwt.to_table(e_time) end function rwt.new(c, m, s) @@ -54,55 +64,112 @@ function rwt.new(c, m, s) } end function rwt.copy(rwtime) + local rwtimet = rwt.to_table(rwtime) return { - c = rwtime.c or 0, - m = rwtime.m or 0, - s = rwtime.s or 0 + c = rwtimet.c or 0, + m = rwtimet.m or 0, + s = rwtimet.s or 0 } end -function rwt.from_sec(stime) - local res = {} - local seconds = atfloor(stime) - res.s = seconds % 60 - local minutes = atfloor(seconds/60) - res.m = minutes % 60 - res.c = atfloor(minutes/60) - return res +function rwt.to_table(rwtime) + if type(rwtime) == "table" then + return rwtime + elseif type(rwtime) == "string" then + return rwt.parse(rwtime) + elseif type(rwtime) == "number" then + local res = {} + local seconds = atfloor(rwtime) + res.s = seconds % 60 + local minutes = atfloor(seconds/60) + res.m = minutes % 60 + res.c = atfloor(minutes/60) + return res + end end -function rwt.to_sec(rwtime, c_over) - return (c_over or rwtime.c)*60*60 + rwtime.m*60 + rwtime.s +function rwt.to_secs(rwtime, c_over) + local res = rwtime + if type(rwtime) == "string" then + res = rwt.parse(rwtime) + elseif type(rwtime) == "number" then + return rwtime + end + if type(res)=="table" then + return (c_over or res.c)*60*60 + res.m*60 + res.s + end end -function rwt.add(t1, t2) - local t1s = rwt.to_sec(t1) - local t2s = rwt.to_sec(t1) - return rwt.from_sec(t1s + t2s) +function rwt.to_string(rwtime_p, no_cycle) + local rwtime = rwt.to_table(rwtime_p) + if rwtime.c~=0 and not no_cycle then + return string.format("%d;%02d;%02d", rwtime.c, rwtime.m, rwtime.s) + else + return string.format("%02d;%02d", rwtime.m, rwtime.s) + end end -function rwt.add_secs(t1, t2s) - local t1s = rwt.to_sec(t1) - return rwt.from_sec(t1s + t2s) +--- + +local function v_n(str, cpl) + if not str then return nil end + if str == "" then + return 0 + end + local n = tonumber(str) + if not cpl and (n<0 or n>59) then + return nil + end + return n +end + +function rwt.parse(str) + --atdebug("parse",str) + --3-value form + local str_c, str_m, str_s = string.match(str, "^(%-?%d?%d?);(%d%d);(%d?%d?)$") + if str_c and str_m and str_s then + --atdebug("3v",str_c, str_m, str_s) + local c, m, s = v_n(str_c, true), v_n(str_m), v_n(str_s) + if c and m and s then + return rwt.new(c,m,s) + end + end + --2-value form + local str_m, str_s = string.match(str, "^(%d?%d?);(%d?%d?)$") + if str_m and str_s then + --atdebug("2v",str_m, str_s) + local m, s = v_n(str_m), v_n(str_s) + if m and s then + return rwt.new(0,m,s) + end + end +end + +--- + +function rwt.add(t1, t2) + local t1s = rwt.to_secs(t1) + local t2s = rwt.to_secs(t1) + return rwt.to_table(t1s + t2s) end -- How many seconds FROM t1 TO t2 function rwt.diff(t1, t2) - local t1s = rwt.to_sec(t1) - local t2s = rwt.to_sec(t1) + local t1s = rwt.to_secs(t1) + local t2s = rwt.to_secs(t1) return t2s - t1s end -- Subtract t2 from t1 (inverted argument order compared to diff()) function rwt.sub(t1, t2) - return rwt.from_sec(rwt.diff(t2, t1)) + return rwt.to_table(rwt.diff(t2, t1)) end -- Adjusts t2 by thresh and then returns time from t1 to t2 function rwt.adj_diff(t1, t2, thresh) local newc = rwt.adjust_cycle(t2, thresh, t1) - local t1s = rwt.to_sec(t1) - local t2s = rwt.to_sec(t2, newc) + local t1s = rwt.to_secs(t1) + local t2s = rwt.to_secs(t2, newc) return t1s - t2s end @@ -121,9 +188,9 @@ rwt.CA_CENTER = 30*60 -- If time is within past 30 minutes of reftime, selecte function rwt.adjust_cycle(rwtime, reftime_p, thresh) local reftime = reftime_p or rwt.now() - local reftimes = rwt.to_sec(reftime) + local reftimes = rwt.to_secs(reftime) - local rwtimes = rwt.to_sec(rwtime, 0) + local rwtimes = rwt.to_secs(rwtime, 0) local timeres = reftimes + thresh - rwtimes local cycles = atfloor(timeres / (60*60)) @@ -132,22 +199,10 @@ end function rwt.adjust(rwtime, reftime, thresh) local cp = rwt.copy(rwtime) - cp.c = rwt.adjust(rwtime, reftime, thresh) + cp.c = rwt.adjust_cycle(rwtime, reftime, thresh) return cp end -function rwt.to_string(rwtime, no_cycle, places) - local pl = places or 2 - if (rwtime.c~=0 or pl>=3) and not no_cycle then - return string.format("%d;%02d;%02d", rwtime.c, rwtime.m, rwtime.s) - elseif rwtime.m~=0 or pl>=2 then - return string.format("%02d;%02d", rwtime.m, rwtime.s) - else - return string.format(";%02d",rwtime.s) - end - return str -end - -- Useful for departure times: returns time (in seconds) -- until the next (adjusted FUTURE) occurence of deptime is reached -- in this case, rwtime is used as reftime and deptime should lie in the future of rwtime @@ -158,5 +213,49 @@ function rwt.get_time_until(deptime, rwtime_p) end +-- Helper functions for handling "repeating times" (rpt) +-- Those are generic declarations for time intervals like "every 5 minutes", with an optional offset +-- ( /02;00-00;45 in timetable syntax + +-- Get the time (in seconds) until the next time this rpt occurs +function rwt.time_to_next_rpt(rwtime, rpt_interval, rpt_offset) + local rpti_s = rwt.to_secs(rpt_interval) + + return (rpti_s - rwt.time_from_last_rpt(rwtime, rpti_s, rpt_offset)) % rpti_s + -- Modulo is just there to clip a false value of rpti_s to 0 +end + + +-- Get the time (in seconds) since the last time this rpt occured +function rwt.time_from_last_rpt(rwtime, rpt_interval, rpt_offset) + local rwtime_s = rwt.to_secs(rwtime) + local rpti_s = rwt.to_secs(rpt_interval) + local rpto_s = rwt.to_secs(rpt_offset) + + return ((rwtime_s - rpto_s) % rpti_s) +end + +-- From rwtime, get the next time that is divisible by rpt_interval offset by rpt_offset +function rwt.next_rpt(rwtime, rpt_interval, rpt_offset) + local rwtime_s = rwt.to_secs(rwtime) + local rpti_s = rwt.to_secs(rpt_interval) + local time_from_last = rwt.time_from_last_rpt(rwtime_s, rpti_s, rpt_offset) + + local res_s = rwtime_s - time_from_last + rpti_s + + return rwt.to_table(res_s) +end + +-- from rwtime, get the last time that this rpt matched (which is actually just next_rpt - rpt_offset +function rwt.last_rpt(rwtime, rpt_interval, rpt_offset) + local rwtime_s = rwt.to_sec(rwtime) + local rpti_s = rwt.to_sec(rpt_interval) + local time_from_last = rwt.time_from_last_rpt(rwtime, rpt_interval, rpt_offset) + + local res_s = rwtime_s - time_from_last + + return rwt.to_table(res_s) +end + advtrains.lines.rwt = rwt |