State at 2025-02-10

1 files changed, 46 insertions, 1 deletions

diff --git a/auto_yards/nodes/(796,10,-54).lua b/auto_yards/nodes/(796,10,-54).lua
index 7bf58f6..a3f3e42 100644
--- a/auto_yards/nodes/(796,10,-54).lua
+++ b/auto_yards/nodes/(796,10,-54).lua
@@ -1 +1,46 @@
--- headshunt
\ No newline at end of file
+-- Automatic bouncer for headshunts, assuming longer headshunt than train length. Arrow points into headshunt
+local rev_rc = "LEEK_HS_south"
+local rm_rc = true
+local autocouple = nil
+local rm_cpl_rc = true
+
+__approach_callback_mode = 1
+
+if event.approach and not event.has_entered then
+	if not F.has_rc(rev_rc) then return end
+	atc_set_lzb_tsr(3)
+	atc_set_ars_disable(true)
+	return
+end
+
+if event.train then
+	if not atc_arrow then --train has bounced
+		if F.has_rc(autocouple) then
+			atc_send("CplS0WD2S1")
+			if rm_cpl_rc then F.remove_rc({autocouple}) end
+		end
+		return
+	end
+
+	if not F.has_rc(rev_rc) then --not our train. disregard
+		atc_set_ars_disable(false)
+		return
+	end
+	atc_send("S3")
+	if rm_rc then F.remove_rc({rev_rc}) end
+	schedule_in(";01",atc_id)
+	return
+end
+
+if event.schedule then
+	if not atc_id then --bounce the train that just passed
+		atc_send_to_train(event.msg,"B0WRD1A1S3")
+	else
+		if atc_id == event.msg then --train hasn't fully passed yet, wait a bit longer
+			schedule_in(";01",atc_id)
+		else -- somehow another train crossed the controller before the first one returned. Unlikely but possible
+			atc_send_to_train(event.msg,"BBOL")
+			atc_send("BBOL")
+		end
+	end
+end
\ No newline at end of file