Draw a one-axis slider handle in scene to adjust number/vector values as distance.

The target field supports Unity serialized number types (int, uint, long, ulong, float, double, etc.) and vector types (Vector2, Vector2Int, Vector3, Vector3Int, Vector4). For vector types, the result is written back to all components (x/y/z/w) with the same value.

This is useful as a ruler.

Parameters

• string space = "this": parent space.
  this uses current target transform, null uses world space behavior, otherwise use target field/callback transform.
• float directionX = 0f, float directionY = 1f, float directionZ = 0f: direction axis.
• string directionCallback = null: callback/field/property for direction (Vector3).
• float size = -1f: handle size. If size <= 0, it uses constant screen-space size (no scale in camera distance).
• float snap = -1f: snap distance. If snap <= 0, snapping is disabled.
• float posXOffset = 0f, float posYOffset = 0f, float posZOffset = 0f: local position offset.
• string posOffsetCallback = null: callback/field/property for position offset (Vector3).
• EColor eColor = EColor.White: color of slider handle.
• float alpha = 1f: alpha of the color.
• string color = null: optional hex color (#...) or callback.

using SaintsField;

[SliderHandle] public float defaultLength = 1f;

[Space]
[GetInChildren] public GameObject anotherSpace;

// Make it in local space of another object
// and change the direction too.
// `vector` types will get all axis the same value
[SliderHandle(space: nameof(anotherSpace), directionX: 1, directionY: 1, eColor: EColor.Green)] public Vector2 upShot;