From a71eeea17a7b54f46710f8d0ccb5e1e22fd54752 Mon Sep 17 00:00:00 2001
From: ubq323 <ubq323@ubq323.website>
Date: Sun, 2 Nov 2025 20:11:34 +0000
Subject: rmath: add clerp round squish unsquish sqlerp

---
 math.lua | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/math.lua b/math.lua
index cd6745e..a60ca0c 100644
--- a/math.lua
+++ b/math.lua
@@ -20,5 +20,13 @@ function M.clamp(x,minv,maxv)
 	return math.min(math.max(x,minv),maxv)
 end
 
+function M.clerp(a,b,t) return M.lerp(a,b,M.clamp(t,0,1)) end
+function M.round(x) return math.floor(x+0.5) end
+
+-- [-1,1] -> [0,1]
+function M.squish(x) return (x/2)+0.5 end
+-- [0,1] -> [-1,1]
+function M.unsquish(x) return (x*2)-1 end
+function M.sqlerp(a,b,t) return M.lerp(a,b,M.squish(t)) end
 
 return M
-- 
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