From 64914067dc27b6b129227ad2f96a70bef7228e36 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Thu, 9 Apr 2020 07:46:39 +0200
Subject: [PATCH] option ..| to specify animations with sharp changes

---
 util.cpp | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/util.cpp b/util.cpp
index 139690a2..c6a93a6c 100644
--- a/util.cpp
+++ b/util.cpp
@@ -340,15 +340,21 @@ cld exp_parser::parse(int prio) {
   while(true) {
     #if CAP_ANIMATIONS
     if(next() == '.' && next(1) == '.' && prio == 0) {
-      vector<cld> rest = { res };
+      vector<pair<cld, cld>> rest = { {res, res} };
       while(next() == '.' && next(1) == '.') {
-        at += 2; rest.push_back(parse(10));
+        if(next(2) == '|') {
+          at += 3;
+          rest.back().second = parse(10);
+          }
+        at += 2; 
+        auto val = parse(10);
+        rest.emplace_back(val, val);
         }
       ld v = ticks * (isize(rest)-1.) / anims::period;
       int vf = v;
       v -= vf;
       vf %= (isize(rest)-1);
-      res = rest[vf] + (rest[vf+1] - rest[vf]) * v;
+      res = rest[vf].second + (rest[vf+1].first - rest[vf].second) * v;
       return res;
       }
     else