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-rw-r--r--advtrains_line_automation/init.lua1
-rw-r--r--advtrains_line_automation/railwaytime.lua48
2 files changed, 39 insertions, 10 deletions
diff --git a/advtrains_line_automation/init.lua b/advtrains_line_automation/init.lua
index eba288f..0f4a4eb 100644
--- a/advtrains_line_automation/init.lua
+++ b/advtrains_line_automation/init.lua
@@ -40,5 +40,4 @@ end
function advtrains.lines.step(dtime)
advtrains.lines.rwt.step(dtime)
- atdebug(advtrains.lines.rwt.now())
end
diff --git a/advtrains_line_automation/railwaytime.lua b/advtrains_line_automation/railwaytime.lua
index d117af1..b6aa3de 100644
--- a/advtrains_line_automation/railwaytime.lua
+++ b/advtrains_line_automation/railwaytime.lua
@@ -81,12 +81,33 @@ function rwt.add(t1, t2)
return rwt.from_sec(t1s + t2s)
end
-function rwt.sub(t1, t2)
+function rwt.add_secs(t1, t2s)
+ local t1s = rwt.to_sec(t1)
+ return rwt.from_sec(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)
- return rwt.from_sec(t1s - t2s)
+ 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))
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)
+ return t1s - t2s
+end
+
+
+
-- Threshold values
-- "reftime" is the time to which this is made relative and defaults to now.
rwt.CA_FUTURE = 60*60 - 1 -- Selected so that time lies at or in the future of reftime (at nearest point in time)
@@ -96,8 +117,8 @@ rwt.CA_PASTS = -1 -- Same, except when times are equal, goes back one full cy
rwt.CA_CENTER = 30*60 -- If time is within past 30 minutes of reftime, selected as past, else selected as future.
-- Adjusts the "cycle" value of a railway time to be in some relation to reftime.
--- Modifies rwtime in-place
-function rwt.adjust(rwtime, reftime_p, thresh)
+-- Returns new cycle
+function rwt.adjust_cycle(rwtime, reftime_p, thresh)
local reftime = reftime_p or rwt.now()
local reftimes = rwt.to_sec(reftime)
@@ -106,13 +127,13 @@ function rwt.adjust(rwtime, reftime_p, thresh)
local timeres = reftimes + thresh - rwtimes
local cycles = atfloor(timeres / (60*60))
- rwtime.c = cycles
+ return cycles
end
-function rwt.get_adjust(rwtime, reftime, thresh)
- local res = rwt.copy(rwtime)
- rwt.adjust(res, reftime, thresh)
- return res
+function rwt.adjust(rwtime, reftime, thresh)
+ local cp = rwt.copy(rwtime)
+ cp.c = rwt.adjust(rwtime, reftime, thresh)
+ return cp
end
function rwt.to_string(rwtime, places)
@@ -127,6 +148,15 @@ function rwt.to_string(rwtime, places)
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
+-- rwtime defaults to NOW
+function rwt.get_time_until(deptime, rwtime_p)
+ local rwtime = rwtime_p or rwt.now()
+ return rwt.adj_diff(rwtime, deptime, rwt.CA_FUTURE)
+end
+
advtrains.lines.rwt = rwt