diff options
| -rw-r--r-- | instructions.html | 2 | ||||
| -rw-r--r-- | js/util.js | 6 |
2 files changed, 5 insertions, 3 deletions
diff --git a/instructions.html b/instructions.html index 2767e48..fb522c0 100644 --- a/instructions.html +++ b/instructions.html @@ -29,7 +29,7 @@ E, PI, PHI <u>convenience functions</u> clamp(n,min,max) mix(n,a,b) (lerp) -step(n,a,b) +step(a,b) smoothstep(n,a,b) avg(m,n,a) cosp, sinp (mapped to [0,1]) @@ -56,9 +56,11 @@ function dist(x0,y0,x1,y1){ return sqrt(pow(x1-x0,2)+pow(y1-y0,2)) } function angle(x0,y0,x1,y1){ return atan2(y1-y0,x1-x0) } function avg(m,n,a){ return (m*(a-1)+n)/a } -function step (n,a,b) { - return clamp((n - a) / (b - a), 0.0, 1.0); +function step(a, b){ + return (b >= a) + 0 + // ^^ bool -> int } + // hermite curve apparently function smoothstep(n,a,b){ var t = clamp((n - a) / (b - a), 0.0, 1.0); |