using System.Numerics;
using AcDream.Core.World;
using Xunit;

namespace AcDream.Core.Tests.World;

public class WorldEntityAabbTests
{
    [Fact]
    public void Aabb_DefaultRadius_PositionPlusMinus5()
    {
        var entity = new WorldEntity
        {
            Id = 1,
            SourceGfxObjOrSetupId = 0,
            Position = new Vector3(10, 20, 30),
            Rotation = System.Numerics.Quaternion.Identity,
            MeshRefs = System.Array.Empty<MeshRef>(),
        };
        entity.RefreshAabb();

        Assert.Equal(new Vector3(5, 15, 25), entity.AabbMin);
        Assert.Equal(new Vector3(15, 25, 35), entity.AabbMax);
    }

    [Fact]
    public void Aabb_DirtyFlag_SetByMutator_ClearedByRefresh()
    {
        var entity = new WorldEntity
        {
            Id = 1,
            SourceGfxObjOrSetupId = 0,
            Position = new Vector3(10, 20, 30),
            Rotation = System.Numerics.Quaternion.Identity,
            MeshRefs = System.Array.Empty<MeshRef>(),
        };
        entity.RefreshAabb();
        Assert.False(entity.AabbDirty);

        entity.SetPosition(new Vector3(100, 200, 300));
        Assert.True(entity.AabbDirty);

        entity.RefreshAabb();
        Assert.False(entity.AabbDirty);
        Assert.Equal(new Vector3(95, 195, 295), entity.AabbMin);
    }
}