diff options
| -rw-r--r-- | math.lua | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -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 |