Boat Attack使用了Universal RP的许多新图形功能,可以用于探索 Universal RP 的使用方式和技巧。
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using System;
using System.Globalization;
using System.Reflection;
using UnityEngine;
using UnityEditor.UIElements;
using UnityEngine.UIElements;
namespace UnityEditor.ShaderGraph.Drawing.Controls
{
[AttributeUsage(AttributeTargets.Property)]
class DielectricSpecularControlAttribute : Attribute, IControlAttribute
{
public DielectricSpecularControlAttribute()
{
}
public VisualElement InstantiateControl(AbstractMaterialNode node, PropertyInfo propertyInfo)
{
return new DielectricSpecularControlView(node, propertyInfo);
}
}
class DielectricSpecularControlView : VisualElement
{
AbstractMaterialNode m_Node;
PropertyInfo m_PropertyInfo;
DielectricSpecularNode.DielectricMaterial m_DielectricMaterial;
VisualElement m_RangePanel;
Slider m_RangeSlider;
FloatField m_RangeField;
VisualElement m_IORPanel;
Slider m_IORSlider;
FloatField m_IORField;
int m_UndoGroup = -1;
public DielectricSpecularControlView(AbstractMaterialNode node, PropertyInfo propertyInfo)
{
m_Node = node;
m_PropertyInfo = propertyInfo;
styleSheets.Add(Resources.Load<StyleSheet>("Styles/Controls/DielectricSpecularControlView"));
m_DielectricMaterial = (DielectricSpecularNode.DielectricMaterial)m_PropertyInfo.GetValue(m_Node, null);
if (propertyInfo.PropertyType != typeof(DielectricSpecularNode.DielectricMaterial))
throw new ArgumentException("Property must be of type DielectricMaterial.", "propertyInfo");
var enumPanel = new VisualElement { name = "enumPanel" };
enumPanel.Add(new Label("Material"));
var enumField = new EnumField(m_DielectricMaterial.type);
enumField.RegisterValueChangedCallback(OnEnumChanged);
enumPanel.Add(enumField);
Add(enumPanel);
m_RangePanel = new VisualElement { name = "sliderPanel" };
m_RangePanel.Add(new Label("Range"));
m_RangeSlider = new Slider(0.01f, 1) { value = m_DielectricMaterial.range };
m_RangeSlider.RegisterValueChangedCallback((evt) => OnChangeRangeSlider(evt.newValue));
m_RangePanel.Add(m_RangeSlider);
m_RangeField = AddField(m_RangePanel, m_RangeSlider, 0, m_DielectricMaterial);
m_RangePanel.SetEnabled(m_DielectricMaterial.type == DielectricMaterialType.Common);
Add(m_RangePanel);
m_IORPanel = new VisualElement { name = "sliderPanel" };
m_IORPanel.Add(new Label("IOR"));
m_IORSlider = new Slider(1, 2.5f) { value = m_DielectricMaterial.indexOfRefraction };
m_IORSlider.RegisterValueChangedCallback((evt) => OnChangeIORSlider(evt.newValue));
m_IORPanel.Add(m_IORSlider);
m_IORField = AddField(m_IORPanel, m_IORSlider, 1, m_DielectricMaterial);
m_IORPanel.SetEnabled(m_DielectricMaterial.type == DielectricMaterialType.Custom);
Add(m_IORPanel);
}
void OnEnumChanged(ChangeEvent<Enum> evt)
{
if (!evt.newValue.Equals(m_DielectricMaterial.type))
{
m_Node.owner.owner.RegisterCompleteObjectUndo("Change " + m_Node.name);
m_DielectricMaterial.type = (DielectricMaterialType)evt.newValue;
m_PropertyInfo.SetValue(m_Node, m_DielectricMaterial, null);
switch (m_DielectricMaterial.type)
{
case DielectricMaterialType.Common:
m_RangePanel.SetEnabled(true);
m_IORPanel.SetEnabled(false);
break;
case DielectricMaterialType.Custom:
m_RangePanel.SetEnabled(false);
m_IORPanel.SetEnabled(true);
break;
default:
m_RangePanel.SetEnabled(false);
m_IORPanel.SetEnabled(false);
break;
}
}
}
void OnChangeRangeSlider(float newValue)
{
m_Node.owner.owner.RegisterCompleteObjectUndo("Slider Change");
m_DielectricMaterial.range = newValue;
m_PropertyInfo.SetValue(m_Node, m_DielectricMaterial, null);
if (m_RangeField != null)
m_RangeField.value = newValue;
this.MarkDirtyRepaint();
}
void OnChangeIORSlider(float newValue)
{
m_Node.owner.owner.RegisterCompleteObjectUndo("Slider Change");
m_DielectricMaterial.indexOfRefraction = newValue;
m_PropertyInfo.SetValue(m_Node, m_DielectricMaterial, null);
if (m_IORField != null)
m_IORField.value = newValue;
this.MarkDirtyRepaint();
}
FloatField AddField(VisualElement panel, Slider slider, int index, DielectricSpecularNode.DielectricMaterial initMaterial)
{
float initValue;
if (index == 1)
initValue = initMaterial.indexOfRefraction;
else
initValue = initMaterial.range;
var field = new FloatField { userData = index, value = initValue };
field.RegisterCallback<MouseDownEvent>(Repaint);
field.RegisterCallback<MouseMoveEvent>(Repaint);
field.RegisterValueChangedCallback(evt =>
{
var value = (DielectricSpecularNode.DielectricMaterial)m_PropertyInfo.GetValue(m_Node, null);
var fieldValue = (float)evt.newValue;
if (index == 1)
{
value.indexOfRefraction = fieldValue;
RedrawIORControls(fieldValue);
}
else
{
value.range = fieldValue;
RedrawRangeControls(fieldValue);
}
m_PropertyInfo.SetValue(m_Node, value, null);
m_UndoGroup = -1;
this.MarkDirtyRepaint();
});
field.Q("unity-text-input").RegisterCallback<InputEvent>(evt =>
{
if (m_UndoGroup == -1)
{
m_UndoGroup = Undo.GetCurrentGroup();
m_Node.owner.owner.RegisterCompleteObjectUndo("Change " + m_Node.name);
}
float newValue;
if (!float.TryParse(evt.newData, NumberStyles.Float, CultureInfo.InvariantCulture.NumberFormat, out newValue))
newValue = 0f;
var value = (DielectricSpecularNode.DielectricMaterial)m_PropertyInfo.GetValue(m_Node, null);
if (index == 1)
value.indexOfRefraction = newValue;
else
value.range = newValue;
m_PropertyInfo.SetValue(m_Node, value, null);
this.MarkDirtyRepaint();
});
field.Q("unity-text-input").RegisterCallback<KeyDownEvent>(evt =>
{
if (evt.keyCode == KeyCode.Escape && m_UndoGroup > -1)
{
Undo.RevertAllDownToGroup(m_UndoGroup);
m_UndoGroup = -1;
var value = (DielectricSpecularNode.DielectricMaterial)m_PropertyInfo.GetValue(m_Node, null);
if (index == 1)
RedrawIORControls(value.indexOfRefraction);
else
RedrawRangeControls(value.range);
evt.StopPropagation();
}
this.MarkDirtyRepaint();
});
panel.Add(field);
return field;
}
void RedrawRangeControls(float value)
{
value = Mathf.Max(Mathf.Min(value, 1), 0.01f);
m_RangePanel.Remove(m_RangeSlider);
m_RangeSlider = new Slider(0.01f, 1) { value = value };
m_RangeSlider.RegisterValueChangedCallback((evt) => OnChangeRangeSlider(evt.newValue));
m_RangePanel.Add(m_RangeSlider);
m_RangePanel.Remove(m_RangeField);
m_RangeField.value = value;
m_RangePanel.Add(m_RangeField);
}
void RedrawIORControls(float value)
{
value = Mathf.Max(Mathf.Min(value, 5), 1);
m_IORPanel.Remove(m_IORSlider);
m_IORSlider = new Slider(1, 2.5f) { value = value };
m_IORSlider.RegisterValueChangedCallback((evt) => OnChangeIORSlider(evt.newValue));
m_IORPanel.Add(m_IORSlider);
m_IORPanel.Remove(m_IORField);
m_IORField.value = value;
m_IORPanel.Add(m_IORField);
}
void Repaint<T>(MouseEventBase<T> evt) where T : MouseEventBase<T>, new()
{
evt.StopPropagation();
this.MarkDirtyRepaint();
}
}
}