IronPythonでXNAで線を引く

import clr

clr.AddReference('System')
clr.AddReference('Microsoft.Xna.Framework')
clr.AddReference('Microsoft.Xna.Framework.Game')

from System import *
from Microsoft.Xna.Framework import *
from Microsoft.Xna.Framework.Graphics import *

class Game1(Game):
    def __init__(self):
        self.graphics = GraphicsDeviceManager(self)

        a = [VertexPositionColor(Vector3(0.0, 0.0, 0.0), Color.Black),
             VertexPositionColor(Vector3(1.0, 1.0, 0.0), Color.Black),
             VertexPositionColor(Vector3(0.0, 0.0, 0.0), Color.Red),
             VertexPositionColor(Vector3(-1.0,-1.0,0.0), Color.Red),
             VertexPositionColor(Vector3(-1.0, 1.0,0.0), Color.Blue),
             VertexPositionColor(Vector3(1.0,-1.0, 0.0), Color.Blue)]

        self.points = Array[VertexPositionColor](a)

    def Initialize(self):
        Game.Initialize(self)

    def LoadGraphicsContent(self, loadAllContent):
        self.declaration = VertexDeclaration(
            self.graphics.GraphicsDevice, VertexPositionColor.VertexElements)
        self.effect = BasicEffect(self.graphics.GraphicsDevice, None)

        self.graphics.GraphicsDevice.VertexDeclaration = self.declaration
        self.effect.VertexColorEnabled = True

        Game.LoadGraphicsContent(self, loadAllContent)

    def UnloadGraphicsContent(self, unloadAllContent):
        self.declaration.Dispose()
        self.effect.Dispose()

        Game.UnloadGraphicsContent(self, unloadAllContent)

    def Draw(self, gameTime):
        self.graphics.GraphicsDevice.Clear(Color.White)

        self.effect.Begin()
        for pas in self.effect.CurrentTechnique.Passes:
            pas.Begin()
            self.graphics.GraphicsDevice.DrawUserPrimitives[VertexPositionColor](
                PrimitiveType.LineList, self.points, 0, 3)
            pas.End()
        self.effect.End()

        Game.Draw(self, gameTime)

Game1().Run()

線を引きます。なんかXNAのhelpのサンプルのまるうつし。
ここで前に書いたタイプパラメーターが出てますね。なんか位置情報を配列に入れて描画担当に渡すんだけどさ、そんときの配列が生Python配列だとだめで、一回、位置情報型のArrayを作ってそれに生配列をいれるみたいな。な。

でも生配列→位置情報配列はそのままいけるという。