From b996d5c6b2a34f9a1f3de2f88bfc347f0cdb1da5 Mon Sep 17 00:00:00 2001
From: Leshana <Leshana@users.noreply.github.com>
Date: Wed, 7 Jun 2017 13:55:34 -0400
Subject: [PATCH] Ports utility macros to let subsystems divide their time
 among a few tasks

Port of https://github.com/tgstation/tgstation/pull/26324
---
 code/__defines/MC.dm | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/code/__defines/MC.dm b/code/__defines/MC.dm
index 08b8d223ec7..59fb0d4db73 100644
--- a/code/__defines/MC.dm
+++ b/code/__defines/MC.dm
@@ -1,4 +1,15 @@
 #define MC_TICK_CHECK ( ( world.tick_usage > CURRENT_TICKLIMIT || src.state != SS_RUNNING ) ? pause() : 0 )
+
+// Used for splitting up your remaining time into phases, if you want to evenly divide it.
+#define MC_SPLIT_TICK_INIT(phase_count) var/original_tick_limit = CURRENT_TICKLIMIT; var/split_tick_phases = ##phase_count
+#define MC_SPLIT_TICK \
+    if(split_tick_phases > 1){\
+        CURRENT_TICKLIMIT = ((original_tick_limit - world.tick_usage) / split_tick_phases) + world.tick_usage;\
+        --split_tick_phases;\
+    } else {\
+        CURRENT_TICKLIMIT = original_tick_limit;\
+    }
+
 // Used to smooth out costs to try and avoid oscillation.
 #define MC_AVERAGE_FAST(average, current) (0.7 * (average) + 0.3 * (current))
 #define MC_AVERAGE(average, current) (0.8 * (average) + 0.2 * (current))