john/prosperon
1
0
Fork 0
Code Issues Pull requests Actions Releases Activity

add vector angle

Browse source
This commit is contained in:
John Alanbrook 2024-06-25 17:53:15 -05:00
parent 7e851756de
commit b5e655e1f2
1 changed files with 11 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
scripts/base.js
View file

@ -1494,6 +1494,16 @@ Vector.random = function() {
return Vector.norm(vec);
}
Vector.angle_between = function(a,b)
{
var dot = Vector.dot(a,b);
var am = Vector.length(a);
var bm = Vector.length(b);
var cos_a = dot / (am*bm);
var angle = Math.acos(cos_a);
return Math.rad2turn(angle);
}
Vector.angle = function(v) { return Math.rad2turn(Math.atan2(v.y, v.x)); }
Vector.rotate = function(v,angle) {
var r = Vector.length(v);