public override bool CanDrawProperty(SerializedProperty property)
{
ShowIfAttribute showIfAttribute = PropertyUtility.GetAttribute <ShowIfAttribute>(property);
UnityEngine.Object target = PropertyUtility.GetTargetObject(property);
List <bool> conditionValues = new List <bool>();
foreach (var condition in showIfAttribute.Conditions)
{
FieldInfo conditionField = ReflectionUtility.GetField(target, condition);
if (conditionField != null &&
conditionField.FieldType == typeof(bool))
{
conditionValues.Add((bool)conditionField.GetValue(target));
}
MethodInfo conditionMethod = ReflectionUtility.GetMethod(target, condition);
if (conditionMethod != null &&
conditionMethod.ReturnType == typeof(bool) &&
conditionMethod.GetParameters().Length == 0)
{
conditionValues.Add((bool)conditionMethod.Invoke(target, null));
}
}
if (conditionValues.Count > 0)
{
bool draw;
if (showIfAttribute.ConditionOperator == ConditionOperator.And)
{
draw = true;
foreach (var value in conditionValues)
{
draw = draw && value;
}
}
else
{
draw = false;
foreach (var value in conditionValues)
{
draw = draw || value;
}
}
if (showIfAttribute.Reversed)
{
draw = !draw;
}
return(draw);
}
else
{
string warning = showIfAttribute.GetType().Name + " needs a valid boolean condition field or method name to work";
EditorDrawUtility.DrawHelpBox(warning, MessageType.Warning, context: target);
return(true);
}
}
public static T[] GetAttributes <T>(SerializedProperty property) where T : Attribute
{
FieldInfo fieldInfo = ReflectionUtility.GetField(GetTargetObject(property), property.name);
return((T[])fieldInfo.GetCustomAttributes(typeof(T), true));
}
