From eb9466c8d3d18d65eb4bab2f6770f55cba9d8de3 Mon Sep 17 00:00:00 2001
From: Elizabeth Alexander Hunt <me@liz.coffee>
Date: Sat, 9 May 2026 18:38:21 -0700
Subject: Adding a simple grid-based camera

---
 math.lua | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

(limited to 'math.lua')

diff --git a/math.lua b/math.lua
index 4a13517..dc5ba64 100644
--- a/math.lua
+++ b/math.lua
@@ -1,13 +1,17 @@
 Vec2 = {}
+Vec2.__eq = function(a, b) return a.x == b.x and a.y == b.y end
 Vec2.__index = Vec2
 Vec2.__add = function(a, b) return vec2(a.x + b.x, a.y + b.y) end
 Vec2.__unm = function(a) return vec2(-a.x, -a.y) end
 Vec2.__sub = function(a, b) return a + (-b) end
 Vec2.__mul = function(a, b)
     if (type(b) == "number") then return vec2(a.x * b, a.y * b) end -- scalar mult
-    return a.x * b.x + a.y * b.y
+    return vec2(a.x * b.x, a.y * b.y)
+end
+Vec2.__div = function(a, b)
+    if (type(b) == "number") then return vec2(a.x / b, a.y / b) end -- scalar mult
+    return vec2(a.x / b.x, a.y / b.y)
 end
-Vec2.__div = function(a, b) return vec2(a.x / b.x, a.y / b.y) end
 Vec2.__tostring = function(a) return "(" .. fmt(a.x) .. "," .. fmt(a.y) .. ")" end
 
 function Vec2:magnitude()
@@ -17,7 +21,7 @@ end
 function Vec2:normal()
     local m = self:magnitude()
     if m == 0 then return vec2(self.x, self.y) end
-    return vec2(self.x / m, self.y / m)
+    return self / m
 end
 
 function Vec2:apply(f)
-- 
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