add is_zero

AustinEast · AustinEast · commit 68049ac4180e · 2022-03-19T09:43:29.000-07:00
diff --git a/echo/math/Vector2.hx b/echo/math/Vector2.hx
@@ -280,6 +280,10 @@ inline function copy_to(a:Vector2, b:Vector2):Vector2 {
   return a;
 }
 
+inline function is_zero(v:Vector2):Bool {
+  return v.x == 0 && v.y == 0;
+}
+
 inline function negate(v:Vector2)
   return v.set(-v.x, -v.y);
 

Original file line number	Diff line number	Diff line change
`@@ -280,6 +280,10 @@ inline function copy_to(a:Vector2, b:Vector2):Vector2 {`
`280`	`280`	`return a;`
`281`	`281`	`}`
`282`	`282`
	`283`	`+inline function is_zero(v:Vector2):Bool {`
	`284`	`+ return v.x == 0 && v.y == 0;`
	`285`	`+}`
	`286`	`+`
`283`	`287`	`inline function negate(v:Vector2)`
`284`	`288`	`return v.set(-v.x, -v.y);`
`285`	`289`