Unity 接地判定の線とか、見えない境界とか、見たくなったときは LineRendererで画面に線を引く ref: http://qiita.com/muzudho1/items/e6b02553f8186d80fb53

file0.txt

    /// <summary>
    /// 表示区画の枠
    /// </summary>
    [MenuItem("Tool/RefreshLineFrame")]
    static void RefreshLineFrame()
    {
        // 枠
        lineFrame = GameObject.Find("LineFrame");
        transform_lineFrame = lineFrame.GetComponent<Transform>();
        LineRenderer lineRenderer = lineFrame.GetComponent<LineRenderer>();
        float lineWidth = lineRenderer.widthMultiplier;
        float viewWidthHalf = config.pixelOfViewWidth / 2;
        lineRenderer.SetPositions(new Vector3[] {
            new Vector3(-0.8f-lineWidth-viewWidthHalf,0.8f+lineWidth,-9f),
            new Vector3(0.8f+lineWidth+viewWidthHalf,0.8f+lineWidth,-9f),
            new Vector3(0.8f+lineWidth+viewWidthHalf,-0.8f-lineWidth,-9f),
            new Vector3(-0.8f-lineWidth-viewWidthHalf,-0.8f-lineWidth,-9f),
        });
    }

file1.txt

        GameObject groundedLine_go = GameObject.Find("GroundedLine");
        LineRenderer line = groundedLine_go.GetComponent<LineRenderer>();
        line.SetPositions(new Vector3[] {
            new Vector3(begin.x, begin.y, line.transform.position.z),
            new Vector3(end.x, end.y, line.transform.position.z)
            });

file2.txt

    /// <summary>
    /// 表示区画の枠
    /// </summary>
    [MenuItem("Tool/RefreshLineFrame")]
    static void RefreshLineFrame()
    {
        Config config = (Config)GameObject.Find("Config").GetComponent<MonoBehaviour>();

        GameObject lineFrame = GameObject.Find("LineFrame");
        Transform transform = lineFrame.GetComponent<Transform>();
        LineRenderer lineRenderer = lineFrame.GetComponent<LineRenderer>();
        float lineWidthHalf = lineRenderer.widthMultiplier / 2;
        float viewWidthHalf = config.pixelOfViewWidth / 2;
        float viewHeightHalf = config.GetPixelOfSectionHeight() / 2;
        lineRenderer.SetPositions(new Vector3[] {
            new Vector3(-lineWidthHalf-viewWidthHalf,lineWidthHalf+viewHeightHalf,-9f),
            new Vector3(lineWidthHalf+viewWidthHalf,lineWidthHalf+viewHeightHalf,-9f),
            new Vector3(lineWidthHalf+viewWidthHalf,-lineWidthHalf-viewHeightHalf,-9f),
            new Vector3(-lineWidthHalf-viewWidthHalf,-lineWidthHalf-viewHeightHalf,-9f),
        });
    }

file3.txt

    /// <summary>
    /// 表示区画の枠
    /// </summary>
    [MenuItem("Tool/RefreshLineFrame")]
    static void RefreshLineFrame()
    {
        Config config = (Config)GameObject.Find("Config").GetComponent<MonoBehaviour>();

        GameObject lineFrame = GameObject.Find("LineFrame");
        Transform transform = lineFrame.GetComponent<Transform>();
        LineRenderer lineRenderer = lineFrame.GetComponent<LineRenderer>();
        float lineWidthHalf = lineRenderer.widthMultiplier / 2;
        float viewWidthHalf = config.pixelOfViewWidth / 2;
        float viewHeightHalf = config.GetPixelOfSectionHeight() / 2;
        lineRenderer.SetPositions(new Vector3[] {
            new Vector3(-lineWidthHalf-viewWidthHalf,lineWidthHalf+viewHeightHalf,-9f),
            new Vector3(lineWidthHalf+viewWidthHalf,lineWidthHalf+viewHeightHalf,-9f),
            new Vector3(lineWidthHalf+viewWidthHalf,-lineWidthHalf-viewHeightHalf,-9f),
            new Vector3(-lineWidthHalf-viewWidthHalf,-lineWidthHalf-viewHeightHalf,-9f),
        });
    }