409 lines
17 KiB
C#
409 lines
17 KiB
C#
// Animancer // https://kybernetik.com.au/animancer // Copyright 2018-2023 Kybernetik //
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using System;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.Playables;
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using Object = UnityEngine.Object;
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using Animancer.Units;
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#if UNITY_EDITOR
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using UnityEditor;
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using UnityEditor.Animations;
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#endif
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namespace Animancer
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{
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/// <inheritdoc/>
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/// https://kybernetik.com.au/animancer/api/Animancer/ControllerTransitionAsset
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#if !UNITY_EDITOR
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[System.Obsolete(Validate.ProOnlyMessage)]
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#endif
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[CreateAssetMenu(menuName = Strings.MenuPrefix + "Controller Transition/Base", order = Strings.AssetMenuOrder + 5)]
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[HelpURL(Strings.DocsURLs.APIDocumentation + "/" + nameof(ControllerTransitionAsset))]
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public class ControllerTransitionAsset : AnimancerTransitionAsset<ControllerTransition>
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{
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/// <inheritdoc/>
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[Serializable]
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public new class UnShared :
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UnShared<ControllerTransitionAsset, ControllerTransition, ControllerState>,
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ControllerState.ITransition
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{ }
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}
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/************************************************************************************************************************/
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/// <inheritdoc/>
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/// https://kybernetik.com.au/animancer/api/Animancer/ControllerTransition_1
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[Serializable]
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#if ! UNITY_EDITOR
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[System.Obsolete(Validate.ProOnlyMessage)]
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#endif
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public abstract class ControllerTransition<TState> : AnimancerTransition<TState>,
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IAnimationClipCollection, ICopyable<ControllerTransition<TState>>
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where TState : ControllerState
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{
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/************************************************************************************************************************/
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[SerializeField]
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private RuntimeAnimatorController _Controller;
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/// <summary>[<see cref="SerializeField"/>]
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/// The <see cref="ControllerState.Controller"/> that will be used for the created state.
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/// </summary>
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public ref RuntimeAnimatorController Controller => ref _Controller;
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/// <inheritdoc/>
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public override Object MainObject => _Controller;
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#if UNITY_EDITOR
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/// <summary>[Editor-Only] The name of the serialized backing field of <see cref="Controller"/>.</summary>
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public const string ControllerFieldName = nameof(_Controller);
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#endif
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/************************************************************************************************************************/
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[SerializeField]
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[Tooltip("Determines what each layer does when " +
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nameof(ControllerState) + "." + nameof(ControllerState.Stop) + " is called." +
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"\n• If empty, all layers will reset to their default state." +
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"\n• If this array is smaller than the layer count, any additional layers will use the last value in this array.")]
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private ControllerState.ActionOnStop[] _ActionsOnStop;
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/// <summary>[<see cref="SerializeField"/>]
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/// Determines what each layer does when <see cref="ControllerState.Stop"/> is called.
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/// </summary>
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/// <remarks>
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/// If empty, all layers will reset to their <see cref="ControllerState.ActionOnStop.DefaultState"/>.
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/// <para></para>
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/// If this array is smaller than the
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/// <see cref="UnityEngine.Animations.AnimatorControllerPlayable.GetLayerCount"/>, any additional
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/// layers will use the last value in this array.
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/// </remarks>
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public ref ControllerState.ActionOnStop[] ActionsOnStop => ref _ActionsOnStop;
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/************************************************************************************************************************/
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/// <inheritdoc/>
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public override float MaximumDuration
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{
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get
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{
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if (_Controller == null)
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return 0;
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var duration = 0f;
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var clips = _Controller.animationClips;
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for (int i = 0; i < clips.Length; i++)
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{
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var length = clips[i].length;
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if (duration < length)
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duration = length;
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}
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return duration;
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}
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}
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/************************************************************************************************************************/
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/// <inheritdoc/>
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public override bool IsValid
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#if UNITY_EDITOR
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=> _Controller != null;
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#else
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=> false;
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#endif
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/************************************************************************************************************************/
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/// <summary>Returns the <see cref="Controller"/>.</summary>
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public static implicit operator RuntimeAnimatorController(ControllerTransition<TState> transition)
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=> transition?._Controller;
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/************************************************************************************************************************/
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/// <inheritdoc/>
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public override void Apply(AnimancerState state)
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{
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if (state is ControllerState controllerState)
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controllerState.ActionsOnStop = _ActionsOnStop;
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base.Apply(state);
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}
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/************************************************************************************************************************/
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/// <summary>Adds all clips in the <see cref="Controller"/> to the collection.</summary>
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void IAnimationClipCollection.GatherAnimationClips(ICollection<AnimationClip> clips)
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{
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if (_Controller != null)
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clips.Gather(_Controller.animationClips);
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}
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/************************************************************************************************************************/
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/// <inheritdoc/>
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public virtual void CopyFrom(ControllerTransition<TState> copyFrom)
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{
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CopyFrom((AnimancerTransition<TState>)copyFrom);
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if (copyFrom == null)
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{
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_Controller = default;
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_ActionsOnStop = Array.Empty<ControllerState.ActionOnStop>();
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return;
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}
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_Controller = copyFrom._Controller;
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_ActionsOnStop = copyFrom._ActionsOnStop;
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}
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/************************************************************************************************************************/
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}
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/************************************************************************************************************************/
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/// <inheritdoc/>
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/// https://kybernetik.com.au/animancer/api/Animancer/ControllerTransition
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[Serializable]
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#if ! UNITY_EDITOR
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[System.Obsolete(Validate.ProOnlyMessage)]
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#endif
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public class ControllerTransition : ControllerTransition<ControllerState>,
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ControllerState.ITransition, ICopyable<ControllerTransition>
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{
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/************************************************************************************************************************/
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/// <inheritdoc/>
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public override ControllerState CreateState()
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{
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#if UNITY_ASSERTIONS
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if (Controller == null)
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throw new ArgumentException(
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$"Unable to create {nameof(ControllerState)} because the" +
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$" {nameof(ControllerTransition)}.{nameof(Controller)} is null.");
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#endif
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return State = new ControllerState(Controller, ActionsOnStop);
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}
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/************************************************************************************************************************/
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/// <summary>Creates a new <see cref="ControllerTransition"/>.</summary>
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public ControllerTransition() { }
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/// <summary>Creates a new <see cref="ControllerTransition"/> with the specified Animator Controller.</summary>
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public ControllerTransition(RuntimeAnimatorController controller) => Controller = controller;
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/************************************************************************************************************************/
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/// <summary>Creates a new <see cref="ControllerTransition"/> with the specified Animator Controller.</summary>
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public static implicit operator ControllerTransition(RuntimeAnimatorController controller)
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=> new ControllerTransition(controller);
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/************************************************************************************************************************/
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/// <inheritdoc/>
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public virtual void CopyFrom(ControllerTransition copyFrom)
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{
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CopyFrom((ControllerTransition<ControllerState>)copyFrom);
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}
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/************************************************************************************************************************/
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#region Drawer
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#if UNITY_EDITOR
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/************************************************************************************************************************/
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/// <inheritdoc/>
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[CustomPropertyDrawer(typeof(ControllerTransition<>), true)]
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[CustomPropertyDrawer(typeof(ControllerTransition), true)]
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public class Drawer : Editor.TransitionDrawer
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{
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/************************************************************************************************************************/
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private readonly string[] Parameters;
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private readonly string[] ParameterPropertySuffixes;
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/************************************************************************************************************************/
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/// <summary>Creates a new <see cref="Drawer"/> without any parameters.</summary>
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public Drawer() : base(ControllerFieldName) { }
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/// <summary>Creates a new <see cref="Drawer"/> and sets the <see cref="Parameters"/>.</summary>
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public Drawer(params string[] parameters) : base(ControllerFieldName)
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{
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Parameters = parameters;
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if (parameters == null)
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return;
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ParameterPropertySuffixes = new string[parameters.Length];
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for (int i = 0; i < ParameterPropertySuffixes.Length; i++)
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{
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ParameterPropertySuffixes[i] = "." + parameters[i];
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}
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}
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/************************************************************************************************************************/
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/// <inheritdoc/>
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protected override void DoChildPropertyGUI(
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ref Rect area,
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SerializedProperty rootProperty,
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SerializedProperty property,
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GUIContent label)
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{
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var path = property.propertyPath;
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if (ParameterPropertySuffixes != null)
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{
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var controllerProperty = rootProperty.FindPropertyRelative(MainPropertyName);
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if (controllerProperty.objectReferenceValue is AnimatorController controller)
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{
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for (int i = 0; i < ParameterPropertySuffixes.Length; i++)
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{
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if (path.EndsWith(ParameterPropertySuffixes[i]))
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{
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area.height = Editor.AnimancerGUI.LineHeight;
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DoParameterGUI(area, controller, property);
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return;
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}
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}
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}
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}
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EditorGUI.BeginChangeCheck();
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base.DoChildPropertyGUI(ref area, rootProperty, property, label);
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// When the controller changes, validate all parameters.
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if (EditorGUI.EndChangeCheck() &&
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Parameters != null &&
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path.EndsWith(MainPropertyPathSuffix))
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{
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if (property.objectReferenceValue is AnimatorController controller)
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{
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for (int i = 0; i < Parameters.Length; i++)
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{
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property = rootProperty.FindPropertyRelative(Parameters[i]);
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var parameterName = property.stringValue;
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// If a parameter is missing, assign it to the first float parameter.
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if (!HasFloatParameter(controller, parameterName))
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{
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parameterName = GetFirstFloatParameterName(controller);
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if (!string.IsNullOrEmpty(parameterName))
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property.stringValue = parameterName;
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}
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}
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}
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}
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}
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/************************************************************************************************************************/
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/// <summary>Draws a dropdown menu to select the name of a parameter in the `controller`.</summary>
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protected void DoParameterGUI(Rect area, AnimatorController controller, SerializedProperty property)
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{
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var parameterName = property.stringValue;
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var parameters = controller.parameters;
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using (ObjectPool.Disposable.AcquireContent(out var label, property))
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{
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label = EditorGUI.BeginProperty(area, label, property);
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var xMax = area.xMax;
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area.width = EditorGUIUtility.labelWidth;
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EditorGUI.PrefixLabel(area, label);
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area.x += area.width;
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area.xMax = xMax;
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}
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var color = GUI.color;
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if (!HasFloatParameter(controller, parameterName))
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GUI.color = Editor.AnimancerGUI.ErrorFieldColor;
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using (ObjectPool.Disposable.AcquireContent(out var label, parameterName))
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{
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if (EditorGUI.DropdownButton(area, label, FocusType.Passive))
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{
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property = property.Copy();
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var menu = new GenericMenu();
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for (int i = 0; i < parameters.Length; i++)
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{
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var parameter = parameters[i];
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Editor.Serialization.AddPropertyModifierFunction(menu, property, parameter.name,
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parameter.type == AnimatorControllerParameterType.Float,
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(targetProperty) =>
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{
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targetProperty.stringValue = parameter.name;
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});
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}
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if (menu.GetItemCount() == 0)
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menu.AddDisabledItem(new GUIContent("No Parameters"));
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menu.ShowAsContext();
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}
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}
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GUI.color = color;
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EditorGUI.EndProperty();
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}
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/************************************************************************************************************************/
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private static bool HasFloatParameter(AnimatorController controller, string name)
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{
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if (string.IsNullOrEmpty(name))
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return false;
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var parameters = controller.parameters;
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for (int i = 0; i < parameters.Length; i++)
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{
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var parameter = parameters[i];
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if (parameter.type == AnimatorControllerParameterType.Float &&
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parameter.name == name)
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{
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return true;
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}
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}
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return false;
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}
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/************************************************************************************************************************/
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private static string GetFirstFloatParameterName(AnimatorController controller)
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{
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var parameters = controller.parameters;
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for (int i = 0; i < parameters.Length; i++)
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{
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var parameter = parameters[i];
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if (parameter.type == AnimatorControllerParameterType.Float)
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{
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return parameter.name;
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}
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}
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return "";
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}
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/************************************************************************************************************************/
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}
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/************************************************************************************************************************/
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#endif
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#endregion
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/************************************************************************************************************************/
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}
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}
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