collide based on a radius

1 files changed, 9 insertions, 0 deletions

diff --git a/assets/javascripts/rectangles/models/vec2.js b/assets/javascripts/rectangles/models/vec2.js
index 3105fec..7307fca 100644
--- a/assets/javascripts/rectangles/models/vec2.js
+++ b/assets/javascripts/rectangles/models/vec2.js
@@ -54,6 +54,15 @@ vec2.normalize = function(){
 vec2.prototype.contains = function(n){
 	return this.a <= n && n <= this.b
 }
+vec2.prototype.containsDisc = function(n,r){
+	return this.a <= n-r && n+r <= this.b
+}
+vec2.prototype.clamp = function(n){
+	return clamp(n, this.a, this.b)
+}
+vec2.prototype.clampDisc = function(n,r){
+	return clamp(n, this.a+r, this.b-r)
+}
 vec2.prototype.intersects = function(v){
 	if (this.a < v.a) {
 		return (v.a < this.b && this.b <= v.b) || (this.a < v.b && v.b <= this.b)