55 lines
1.4 KiB
C#
55 lines
1.4 KiB
C#
using UnityEngine;
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using UnityEditor;
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using Unity.Mathematics;
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using static Unity.Mathematics.math;
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using static Grid;
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using Color = UnityEngine.Color;
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[ExecuteAlways]
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[SelectionBase]
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[DisallowMultipleComponent]
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public class GridUnit : MonoBehaviour
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{
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public int3 Size = new(1, 1, 1);
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private Vector3 SizeInMeters => new(Size.x * CellSize, Size.y * CellSize, Size.z * CellSize);
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public float3 CenterOffset;
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[SerializeField, HideInInspector] private int3 cachedSize = new(1, 1, 1);
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[SerializeField, HideInInspector] private float3 cachedOffset;
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private bool isDirty => transform.hasChanged ||
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!all(cachedOffset != CenterOffset) ||
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!all(cachedSize == Size);
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#if UNITY_EDITOR
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public void Update()
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{
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if (!isDirty)
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{
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return;
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}
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SnapUnit(transform, Size, CenterOffset);
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transform.hasChanged = false;
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cachedOffset = CenterOffset;
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cachedSize = Size;
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}
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[DrawGizmo(GizmoType.InSelectionHierarchy)]
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private static void DrawGizmo(GridUnit unit, GizmoType type)
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{
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Transform t = unit.transform;
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quaternion rotation = t.rotation;
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var position = (float3)t.position + mul(rotation, unit.CenterOffset);
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Gizmos.color = Color.white;
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Gizmos.matrix = Matrix4x4.TRS(position, rotation, Vector3.one);
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Gizmos.DrawWireCube(Vector3.zero, unit.SizeInMeters);
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}
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#endif
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}
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