80 lines
3.1 KiB
C#
80 lines
3.1 KiB
C#
|
using UnityEngine;
|
||
|
|
using FSA = UnityEngine.Serialization.FormerlySerializedAsAttribute;
|
||
|
|
|
||
|
|
namespace Lean.Common
|
||
|
|
{
|
||
|
|
/// <summary>This component will constrain the current <b>transform.position</b> to the specified box shape.
|
||
|
|
/// NOTE: Unlike <b>LeanConstrainToCollider</b>, this component doesn't use the physics system, so it can avoid certain issues if your constrain shape moves.</summary>
|
||
|
|
[DefaultExecutionOrder(200)]
|
||
|
|
[HelpURL(LeanHelper.PlusHelpUrlPrefix + "LeanConstrainToBox")]
|
||
|
|
[AddComponentMenu(LeanHelper.ComponentPathPrefix + "Constrain To Box")]
|
||
|
|
public class LeanConstrainToBox : MonoBehaviour
|
||
|
|
{
|
||
|
|
/// <summary>The transform the constraint will be applied relative to.
|
||
|
|
/// None/null = World space.</summary>
|
||
|
|
public Transform RelativeTo { set { relativeTo = value; } get { return relativeTo; } } [FSA("RelativeTo")] [SerializeField] private Transform relativeTo;
|
||
|
|
|
||
|
|
/// <summary>The size of the box relative to the current space.</summary>
|
||
|
|
public Vector3 Size { set { size = value; } get { return size; } } [FSA("Size")] [SerializeField] private Vector3 size = Vector3.one;
|
||
|
|
|
||
|
|
/// <summary>The center of the box relative to the current space.</summary>
|
||
|
|
public Vector3 Center { set { center = value; } get { return center; } } [FSA("Center")] [SerializeField] private Vector3 center;
|
||
|
|
|
||
|
|
protected virtual void LateUpdate()
|
||
|
|
{
|
||
|
|
var matrix = relativeTo != null ? relativeTo.localToWorldMatrix : Matrix4x4.identity;
|
||
|
|
var oldPosition = transform.position;
|
||
|
|
var local = matrix.MultiplyPoint(oldPosition);
|
||
|
|
var min = center - size * 0.5f;
|
||
|
|
var max = center + size * 0.5f;
|
||
|
|
var set = false;
|
||
|
|
|
||
|
|
if (local.x < min.x) { local.x = min.x; set = true; }
|
||
|
|
if (local.y < min.y) { local.y = min.y; set = true; }
|
||
|
|
if (local.z < min.z) { local.z = min.z; set = true; }
|
||
|
|
if (local.x > max.x) { local.x = max.x; set = true; }
|
||
|
|
if (local.y > max.y) { local.y = max.y; set = true; }
|
||
|
|
if (local.z > max.z) { local.z = max.z; set = true; }
|
||
|
|
|
||
|
|
if (set == true)
|
||
|
|
{
|
||
|
|
var newPosition = matrix.inverse.MultiplyPoint(local);
|
||
|
|
|
||
|
|
if (Mathf.Approximately(oldPosition.x, newPosition.x) == false ||
|
||
|
|
Mathf.Approximately(oldPosition.y, newPosition.y) == false ||
|
||
|
|
Mathf.Approximately(oldPosition.z, newPosition.z) == false)
|
||
|
|
{
|
||
|
|
transform.position = newPosition;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
protected virtual void OnDrawGizmosSelected()
|
||
|
|
{
|
||
|
|
Gizmos.matrix = relativeTo != null ? relativeTo.localToWorldMatrix : Matrix4x4.identity;
|
||
|
|
|
||
|
|
Gizmos.DrawWireCube(center, size);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#if UNITY_EDITOR
|
||
|
|
namespace Lean.Common.Editor
|
||
|
|
{
|
||
|
|
using TARGET = LeanConstrainToBox;
|
||
|
|
|
||
|
|
[UnityEditor.CanEditMultipleObjects]
|
||
|
|
[UnityEditor.CustomEditor(typeof(TARGET))]
|
||
|
|
public class LeanConstrainToBox_Editor : LeanEditor
|
||
|
|
{
|
||
|
|
protected override void OnInspector()
|
||
|
|
{
|
||
|
|
TARGET tgt; TARGET[] tgts; GetTargets(out tgt, out tgts);
|
||
|
|
|
||
|
|
Draw("relativeTo", "The transform the constraint will be applied relative to.\n\nNone/null = World space.");
|
||
|
|
Draw("size", "The size of the box relative to the current space.");
|
||
|
|
Draw("center", "The center of the box relative to the current space.");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|