wehub-resource-sync
115 lines
3.4 KiB
C#
115 lines
3.4 KiB
C#
using T3.Core.Animation;
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using T3.Core.Utils;
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using static T3.Core.Utils.EasingFunctions;
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namespace Lib.numbers.@float.process;
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[Guid("02aed181-4bf1-48f8-ac2a-93d66c170c0c")]
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internal sealed class EaseKeys : Instance<EaseKeys>
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{
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[Output(Guid = "3543e169-91ca-45ed-9b17-675f67a03a51", DirtyFlagTrigger = DirtyFlagTrigger.Animated)]
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public readonly Slot<float> Result = new();
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public EaseKeys()
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{
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Result.UpdateAction = Update;
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}
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private void Update(EvaluationContext context)
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{
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var inputValue = Value.GetValue(context);
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if (!TryFindCurveWithIndex(out var curve))
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{
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Result.Value = inputValue;
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return;
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}
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var easeMode = Interpolation.GetEnumValue<Interpolations>(context); // Easing function selector
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var easeDirection = Direction.GetEnumValue<EaseDirection>(context);
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var currentTime = context.LocalTime;
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_curve = curve;
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_keyframes = _curve.GetVDefinitions().ToList();
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float duration;
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if (
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TryFindClosestKeys(currentTime, out var nearestKeys)
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&& nearestKeys.Item1.OutInterpolation != VDefinition.KeyInterpolation.Constant
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)
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{
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var (previousKey, nextKey) = nearestKeys;
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_startTime = previousKey.U;
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_initialValue = (float)previousKey.Value;
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_targetValue = (float)nextKey.Value;
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duration = Math.Max((float)(nextKey.U - previousKey.U), 0.0001f);
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}
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else
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{
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Result.Value = inputValue;
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return;
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}
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// Calculate progress based on elapsed time and duration
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var elapsedTime = (float)(currentTime - _startTime);
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var progress = (elapsedTime / duration).Clamp(0f, 1f);
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var easedProgress = ApplyEasing(progress, easeDirection, easeMode);
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Result.Value = MathUtils.Lerp(_initialValue, _targetValue, easedProgress);
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}
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private bool TryFindCurveWithIndex(out Curve curve)
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{
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curve = null;
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var animator = Parent.Symbol.Animator;
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_keyframes.Clear();
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if (!animator.IsAnimated(SymbolChildId, Value.Id))
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return false;
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if (!animator.TryGetCurvesForInputSlot(Value, out var curves))
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return false;
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if (curves.Length == 0)
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return false;
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curve = curves[0];
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return true;
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}
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private bool TryFindClosestKeys(double time, out Tuple<VDefinition, VDefinition> closestKeys)
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{
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closestKeys = null;
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_curve.TryGetPreviousKey(time, out var previousKey);
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_curve.TryGetNextKey(time, out var nextKey);
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if (previousKey == null || nextKey == null)
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{
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return false;
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}
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closestKeys = new(previousKey, nextKey);
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return true;
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}
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private List<VDefinition> _keyframes = [];
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private Curve _curve;
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// Ease.cs
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private double _startTime;
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private float _initialValue;
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private float _targetValue;
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[Input(Guid = "73c822ca-560c-4e86-b4ff-0ae722d7a371")]
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public readonly InputSlot<float> Value = new();
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[Input(Guid = "ca4739a7-be8b-4e65-bbcf-593772bd0c5d", MappedType = typeof(EaseDirection))]
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public readonly InputSlot<int> Direction = new();
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[Input(Guid = "375b49e7-bc67-46cf-a687-2cad66e6fd76", MappedType = typeof(Interpolations))]
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public readonly InputSlot<int> Interpolation = new();
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}
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