diff options
Diffstat (limited to 'math.lua')
| -rw-r--r-- | math.lua | 10 |
1 files changed, 7 insertions, 3 deletions
@@ -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) |