An AI-native
game engine.

1namespace Outpost;
2
3/// <summary>A door that swings open around its Y axis when IsOpen is set.</summary>
4public sealed partial class Door : Behaviour
5{
6    /// <summary>How far the door opens.</summary>
7    [Property, Unit(Units.Degrees), Range(0, 180)]
8    public partial float OpenAngle { get; set; }
9
10    /// <summary>Whether the door should be open.</summary>
11    [Property, Replicate] public partial bool IsOpen { get; set; }
12
13    [Transient] float _degreesPerSecond;
14
15    protected override void OnSpawn() => _degreesPerSecond = 90f;
16
17    protected override void OnTick(in Tick t)
18    {
19        ref var tr = ref Get<Transform>();
20        var target = IsOpen ? OpenAngle : 0f;
21        var step = _degreesPerSecond * t.Dt;
22        tr.Rotation.Y = MathF.Abs(target - tr.Rotation.Y) <= step
23            ? target
24            : tr.Rotation.Y + MathF.Sign(target - tr.Rotation.Y) * step;
25    }
26}