Almost done drawing lines

line.lua

@@ -38,7 +38,7 @@ function Line:draw()
     love.graphics.circle( "fill", sx, sy, Config.linePointRadius )
     local ex, ey = self.endpoint:globalCoords()
     love.graphics.circle( "fill", ex, ey, Config.linePointRadius )
-    if #self.points == 1 then
+    if #self.points <= 1 then
         love.graphics.setColor( Color.white )
         return
     end
@@ -52,3 +52,27 @@ function Line:draw()
     love.graphics.line( points )
     love.graphics.setColor( Color.white )
 end
+
+-- Clear points
+function Line:clear()
+    for k, _ in pairs( self.points ) do
+        self.points[k] = nil
+    end
+end
+
+-- Swap startpoint and endpoint
+function Line:reverse()
+    local swap = self.startpoint
+    self.startpoint = self.endpoint
+    self.endpoint = swap 
+    self:push( self.startpoint )
+end
+
+-- Check if line has the exact point
+function Line:has( point )
+    return tableHas( self.points, point,
+        function( value, innervalue )
+            return innervalue:equals( value )
+        end
+    )
+end