311 lines
13 KiB
C#
311 lines
13 KiB
C#
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#if CINEMACHINE_UNITY_ANIMATION
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using System.Collections.Generic;
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using UnityEditor;
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using UnityEngine;
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using UnityEditor.Animations;
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using Object = UnityEngine.Object;
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using UnityEngine.UIElements;
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using UnityEditor.UIElements;
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namespace Unity.Cinemachine.Editor
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{
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[CanEditMultipleObjects]
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[CustomEditor(typeof(CinemachineStateDrivenCamera))]
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class CinemachineStateDrivenCameraEditor : CinemachineVirtualCameraBaseEditor
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{
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CinemachineStateDrivenCamera Target => target as CinemachineStateDrivenCamera;
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List<string> m_LayerNames = new();
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List<int> m_TargetStates = new();
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List<string> m_TargetStateNames = new();
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Dictionary<int, int> m_StateIndexLookup;
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protected override void AddInspectorProperties(VisualElement ux)
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{
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ux.AddHeader("Global Settings");
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this.AddGlobalControls(ux);
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ux.AddHeader("State Driven Camera");
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ux.Add(new PropertyField(serializedObject.FindProperty(() => Target.DefaultTarget)));
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ux.Add(new PropertyField(serializedObject.FindProperty(() => Target.DefaultBlend)));
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ux.Add(new PropertyField(serializedObject.FindProperty(() => Target.CustomBlends)));
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ux.Add(new PropertyField(serializedObject.FindProperty(() => Target.AnimatedTarget)));
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var layerProp = serializedObject.FindProperty(() => Target.LayerIndex);
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var layerSel = ux.AddChild(new PopupField<string>(layerProp.displayName) { tooltip = layerProp.tooltip });
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layerSel.AddToClassList(InspectorUtility.AlignFieldClassName);
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layerSel.RegisterValueChangedCallback((evt) =>
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{
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layerProp.intValue = Mathf.Max(0, m_LayerNames.FindIndex(v => v == evt.newValue));
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serializedObject.ApplyModifiedProperties();
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});
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var noTargetHelp = ux.AddChild(new HelpBox("An Animated Target is required.", HelpBoxMessageType.Warning));
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UpdateTargetStates();
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ux.TrackAnyUserActivity(() =>
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{
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if (Target == null)
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return; // object deleted
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UpdateTargetStates();
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layerSel.choices = m_LayerNames;
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layerSel.SetValueWithoutNotify(m_LayerNames[layerProp.intValue]);
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noTargetHelp.SetVisible(Target.AnimatedTarget == null);
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});
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var multiSelectMsg = ux.AddChild(new HelpBox(
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"Child Cameras and State Instructions cannot be displayed when multiple objects are selected.",
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HelpBoxMessageType.Info));
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var container = ux.AddChild(new VisualElement() { style = { marginTop = 6 }});
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container.AddHeader("Instructions");
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var vcam = Target;
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var header = container.AddChild(new VisualElement { style = { flexDirection = FlexDirection.Row, marginBottom = -2 } });
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FormatInstructionElement(true,
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header.AddChild(new Label("State")),
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header.AddChild(new Label("Camera")),
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header.AddChild(new Label("Wait")),
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header.AddChild(new Label("Min")));
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header.AddToClassList("unity-collection-view--with-border");
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var list = container.AddChild(new ListView()
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{
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reorderable = true,
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reorderMode = ListViewReorderMode.Animated,
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showAddRemoveFooter = true,
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showBorder = true,
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showBoundCollectionSize = false,
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showFoldoutHeader = false,
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style = { borderTopWidth = 0 },
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});
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var instructions = serializedObject.FindProperty(() => Target.Instructions);
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list.BindProperty(instructions);
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list.makeItem = () =>
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{
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var row = new BindableElement { style = { flexDirection = FlexDirection.Row }};
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var def = new CinemachineStateDrivenCamera.Instruction();
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// This is the real state field, but it's hidden
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var hashField = row.AddChild(new IntegerField() { bindingPath = SerializedPropertyHelper.PropertyName(() => def.FullHash) });
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hashField.SetVisible(false);
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// Create a state selector popup to drive the state field
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var stateSel = row.AddChild(new PopupField<string>
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{
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choices = m_TargetStateNames,
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tooltip = "The state that will activate the camera"
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});
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hashField.RegisterValueChangedCallback((evt) =>
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{
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if (evt.target != hashField)
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return;
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for (int i = 0; i < m_TargetStates.Count; ++i)
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{
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if (evt.newValue == m_TargetStates[i])
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{
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stateSel.value = m_TargetStateNames[i];
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break;
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}
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}
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evt.StopPropagation();
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});
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stateSel.RegisterValueChangedCallback((evt) =>
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{
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if (evt.target != stateSel)
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return;
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for (int i = 0; i < m_TargetStateNames.Count; ++i)
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{
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if (evt.newValue == m_TargetStateNames[i])
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{
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hashField.value = m_TargetStates[i];
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break;
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}
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}
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evt.StopPropagation();
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});
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var vcamSel = row.AddChild(new PropertyField(null, "") { bindingPath = SerializedPropertyHelper.PropertyName(() => def.Camera) });
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var wait = row.AddChild(InspectorUtility.CreateDraggableField(() => def.ActivateAfter, row.AddChild(new Label(" ")), out _));
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wait.SafeSetIsDelayed();
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var hold = row.AddChild(InspectorUtility.CreateDraggableField(() => def.MinDuration, row.AddChild(new Label(" ")), out _));
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hold.SafeSetIsDelayed();
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FormatInstructionElement(false, stateSel, vcamSel, wait, hold);
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return row;
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};
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container.TrackAnyUserActivity(() =>
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{
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if (Target == null || list.itemsSource == null)
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return; // object deleted
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var isMultiSelect = targets.Length > 1;
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multiSelectMsg.SetVisible(isMultiSelect);
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container.SetVisible(!isMultiSelect);
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});
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// Local function
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static void FormatInstructionElement(
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bool isHeader, VisualElement e1, VisualElement e2, VisualElement e3, VisualElement e4)
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{
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var floatFieldWidth = EditorGUIUtility.singleLineHeight * 3f;
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e1.style.marginLeft = isHeader ? 2 * InspectorUtility.SingleLineHeight - 3 : 0;
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e1.style.flexBasis = floatFieldWidth + InspectorUtility.SingleLineHeight;
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e1.style.flexGrow = 1;
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e1.style.flexShrink = 0;
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e2.style.flexBasis = floatFieldWidth + InspectorUtility.SingleLineHeight;
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e2.style.flexGrow = 1;
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e2.style.flexShrink = 0;
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floatFieldWidth += isHeader ? InspectorUtility.SingleLineHeight/2 - 1 : 0;
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e3.style.flexBasis = floatFieldWidth;
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e3.style.flexGrow = 0;
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e4.style.flexBasis = floatFieldWidth;
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e4.style.flexGrow = 0;
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}
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}
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static AnimatorController GetControllerFromAnimator(Animator animator)
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{
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if (animator == null)
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return null;
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var ovr = animator.runtimeAnimatorController as AnimatorOverrideController;
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if (ovr)
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return ovr.runtimeAnimatorController as AnimatorController;
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return animator.runtimeAnimatorController as AnimatorController;
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}
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void UpdateTargetStates()
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{
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// Scrape the Animator Controller for states
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var ac = GetControllerFromAnimator(Target.AnimatedTarget);
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var collector = new StateCollector();
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collector.CollectStates(ac, Target.LayerIndex);
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m_TargetStates.Clear(); m_TargetStates.AddRange(collector.States);
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m_TargetStateNames.Clear(); m_TargetStateNames.AddRange(collector.StateNames);
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m_StateIndexLookup = collector.StateIndexLookup;
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m_LayerNames.Clear();
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for (int i = 0; ac != null && i < ac.layers.Length; ++i)
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m_LayerNames.Add(ac.layers[i].name);
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if (m_LayerNames.Count == 0)
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m_LayerNames.Add("(missing animated target)");
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// Create the parent map in the target
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List<CinemachineStateDrivenCamera.ParentHash> parents = new();
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var iter = collector.StateParentLookup.GetEnumerator();
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while (iter.MoveNext())
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parents.Add(new CinemachineStateDrivenCamera.ParentHash
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{ Hash = iter.Current.Key, HashOfParent = iter.Current.Value });
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Target.SetParentHash(parents);
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}
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class StateCollector
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{
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public List<int> States;
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public List<string> StateNames;
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public Dictionary<int, int> StateIndexLookup;
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public Dictionary<int, int> StateParentLookup;
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public void CollectStates(AnimatorController ac, int layerIndex)
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{
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States = new List<int>();
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StateNames = new List<string>();
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StateIndexLookup = new Dictionary<int, int>();
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StateParentLookup = new Dictionary<int, int>();
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StateIndexLookup[0] = States.Count;
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StateNames.Add("(default)");
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States.Add(0);
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if (ac != null && layerIndex >= 0 && layerIndex < ac.layers.Length)
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{
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AnimatorStateMachine fsm = ac.layers[layerIndex].stateMachine;
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string name = fsm.name;
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int hash = Animator.StringToHash(name);
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CollectStatesFromFSM(fsm, name + ".", hash, string.Empty);
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}
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}
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void CollectStatesFromFSM(
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AnimatorStateMachine fsm, string hashPrefix, int parentHash, string displayPrefix)
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{
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var states = fsm.states;
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for (int i = 0; i < states.Length; i++)
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{
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var state = states[i].state;
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int hash = AddState(Animator.StringToHash(hashPrefix + state.name),
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parentHash, displayPrefix + state.name);
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// Also process clips as pseudo-states, if more than 1 is present.
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// Since they don't have hashes, we can manufacture some.
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var clips = CollectClips(state.motion);
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if (clips.Count > 1)
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{
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string substatePrefix = displayPrefix + state.name + ".";
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for (int j = 0; j < clips.Count; ++j)
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AddState(
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CinemachineStateDrivenCamera.CreateFakeHash(hash, clips[j]),
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hash, substatePrefix + clips[j].name);
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}
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}
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var fsmChildren = fsm.stateMachines;
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for (int i = 0; i < fsmChildren.Length; ++i)
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{
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var child = fsmChildren[i];
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string name = hashPrefix + child.stateMachine.name;
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string displayName = displayPrefix + child.stateMachine.name;
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int hash = AddState(Animator.StringToHash(name), parentHash, displayName);
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CollectStatesFromFSM(child.stateMachine, name + ".", hash, displayName + ".");
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}
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}
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List<AnimationClip> CollectClips(UnityEngine.Motion motion)
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{
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var clips = new List<AnimationClip>();
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var clip = motion as AnimationClip;
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if (clip != null)
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clips.Add(clip);
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var tree = motion as BlendTree;
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if (tree != null)
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{
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var children = tree.children;
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for (int i = 0; i < children.Length; ++i)
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clips.AddRange(CollectClips(children[i].motion));
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}
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return clips;
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}
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int AddState(int hash, int parentHash, string displayName)
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{
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if (parentHash != 0)
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StateParentLookup[hash] = parentHash;
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StateIndexLookup[hash] = States.Count;
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StateNames.Add(displayName);
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States.Add(hash);
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return hash;
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}
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}
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int GetStateHashIndex(int stateHash)
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{
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if (stateHash == 0)
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return 0;
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if (!m_StateIndexLookup.ContainsKey(stateHash))
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return 0;
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return m_StateIndexLookup[stateHash];
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}
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}
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}
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#endif
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