From 8f9e671340bebb3c474988190cc14d3126b3469c Mon Sep 17 00:00:00 2001
From: Cyberarm <matthewlikesrobots@gmail.com>
Date: Tue, 1 Oct 2019 11:48:22 -0500
Subject: [PATCH] Added Vector#lerp

---
 lib/cyberarm_engine.rb            | 2 +-
 lib/cyberarm_engine/lib/vector.rb | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/cyberarm_engine.rb b/lib/cyberarm_engine.rb
index b12f1fd..190d94f 100644
--- a/lib/cyberarm_engine.rb
+++ b/lib/cyberarm_engine.rb
@@ -1,5 +1,5 @@
 begin
-  require "../ffi-gosu/lib/gosu"
+  require File.expand_path("../../ffi-gosu/lib/gosu", File.dirname(__FILE__))
 rescue LoadError => e
   pp e
   require "gosu"
diff --git a/lib/cyberarm_engine/lib/vector.rb b/lib/cyberarm_engine/lib/vector.rb
index e7bbb44..c9930e7 100644
--- a/lib/cyberarm_engine/lib/vector.rb
+++ b/lib/cyberarm_engine/lib/vector.rb
@@ -162,6 +162,10 @@ module CyberarmEngine
       @x + @y + @z
     end
 
+    def lerp(other, factor)
+      (self - other) * factor.clamp(0.0, 1.0)
+    end
+
     # 2D distance using X and Y
     def distance(other)
       Math.sqrt((@x-other.x)**2 + (@y-other.y)**2)