Handles.DrawAAConvexPolygon

参数

描述

绘制使用点数组指定的抗锯齿凸多边形。

// Draws an arrow between start and end gameobjects.

@CustomEditor (DrawArrow)
class DrawArrowHandle extends Editor {

    function OnSceneGUI () {
        var arrowHead = new Vector3[3];
        var arrowLine = new Vector3[2];

        Transform start = ((foobar)target).start;
        Transform end = ((foobar)target).end;
        if (!start || !end)
            return;

        var forward = (end.position - start.position).normalized;
        var right = Vector3.Cross(Vector3.up, forward).normalized;
        var size = HandleUtility.GetHandleSize(end.position);
        var width = size * 0.1f;
        var height = size * 0.3f;

        arrowHead[0] = end.position;
        arrowHead[1] = end.position - forward * height + right*width;
        arrowHead[2] = end.position - forward * height - right*width;

        arrowLine[0] = start.position;
        arrowLine[1] = end.position - forward * height;

        Handles.color = Color.red;
        Handles.DrawAAPolyLine(arrowLine);
        Handles.DrawAAConvexPolygon(arrowHead);
    }
}