multiselect region can be drawn with the right mouse button

code/rect.lua

@@ -6,6 +6,7 @@ Rect.__index = Rect
 function Rect:fromPoints(pt1, pt2)
 	local o = { min = pt1, max = pt2 }
 	setmetatable(o, self)
+	return o
 end
 
 function Rect:fromCoords(x1, y1, x2, y2)
@@ -64,3 +65,11 @@ function Rect:overlapsRect(other)
 		return self.min.x<other.max.x and self.min.x<other.max.x and
 	       self.min.y<other.max.y and self.min.y<other.max.y
 end
+
+function Rect:draw(style)
+	love.graphics.rectangle(style, self.min.x - Camera.pos.x, self.min.y - Camera.pos.y, self:width(), self:height())
+end
+
+function Rect:__tostring()
+	return "Rect["..tostring(self.min).." "..tostring(self.max).."]"
+end