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我是一名 MonoGame 开发人员，我想在手机屏幕上画一条曲线，但曲线不规则，而是由几条线组成。

我使用了一些这样的代码：

第一种方法将精灵绘制成事件间隔，如下所示：

 // increment is how far apart each sprite is drawn
private void DrawEvenlySpacedSprites(Texture2D texture, Vector2 point1, Vector2 point2, float     increment)
{
    var distance = Vector2.Distance(point1, point2);    // the distance between two points
    var iterations = (int)(distance / increment);       // how many sprites with be drawn
    var normalizedIncrement = 1.0f / iterations;        // the Lerp method needs values between 0.0 and 1.0
    var amount = 0.0f;

    if(iterations == 0)
        iterations = 1;

    for (int i = 0; i < iterations; i++)
    {
        var drawPoint = Vector2.Lerp(point1, point2, amount);
        _spriteBatch.Draw(texture, drawPoint, Color.White);
        amount += normalizedIncrement;
    }
}

更新方法：

private Vector2? _previousPoint;
protected override void Update(GameTime gameTime)
{
    TouchCollection touches = TouchPanel.GetState();

    foreach (TouchLocation touch in touches)
    {
        if (touch.State == TouchLocationState.Moved)
        {
            GraphicsDevice.SetRenderTarget(renderTarget);
            _spriteBatch.Begin();

            if (_previousPoint.HasValue)
                DrawEvenlySpacedSprites(texture, _previousPoint.Value, touch.Position, 0.5f);

            _spriteBatch.End();
            GraphicsDevice.SetRenderTarget(null);
        }
    }

    if (touches.Any())
        _previousPoint = touches.Last().Position;
    else
        _previousPoint = null;

    base.Update(gameTime);
}

我有这个结果：

在此处输入图像描述

为了解决这个问题，我尝试使用贝塞尔曲线，但我无法实现这个解决方案。

拜托，你能帮帮我吗？

等待您的宝贵意见和建议。

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