1 files changed, 12 insertions, 0 deletions
diff --git a/city/geometry.lua b/city/geometry.lua
index a775213..1632393 100644
--- a/city/geometry.lua
+++ b/city/geometry.lua
@@ -46,6 +46,18 @@ geom.square = class{
    end,
 
    axis_range = function(c, r) return {min=c-r, max=c+r} end,
+
+   contains = function(self, point)
+      local x_overlap =
+	 (point.x > self.x.min) and (point.x <= self.x.max)
+      local y_overlap =
+	 (point.y > self.y.min) and (point.y <= self.y.max)
+
+      if x_overlap and y_overlap then
+	 return true
+      end
+      return false
+   end
 }
 
 return geom