add weather and time

Assets/Enviro 3 - Sky and Weather/Scripts/Editor/Base/EnviroDefineSymbol.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Linq;
+using UnityEditor;
+using UnityEditor.Build;
+ 
+[InitializeOnLoad]
+sealed class EnviroDefineSymbol
+{
+    const string k_Define = "ENVIRO_3";
+
+    static EnviroDefineSymbol()
+{
+    var targets = Enum.GetValues(typeof(BuildTargetGroup))
+        .Cast<BuildTargetGroup>()
+        .Where(x => x != BuildTargetGroup.Unknown)
+        .Where(x => !IsObsolete(x));
+
+    foreach (var target in targets)
+    {
+#if UNITY_6000_0_OR_NEWER
+        var namedTarget = NamedBuildTarget.FromBuildTargetGroup(target);
+        var defines = PlayerSettings.GetScriptingDefineSymbols(namedTarget).Trim();
+#else
+        var defines = PlayerSettings.GetScriptingDefineSymbolsForGroup(target).Trim();
+#endif
+
+        var list = defines.Split(new[] { ';', ' ' }, StringSplitOptions.RemoveEmptyEntries)
+            .ToList();
+
+        if (list.Contains(k_Define))
+            continue;
+
+        list.Add(k_Define);
+        defines = string.Join(";", list);
+
+#if UNITY_6000_0_OR_NEWER
+        PlayerSettings.SetScriptingDefineSymbols(namedTarget, defines);
+#else
+        PlayerSettings.SetScriptingDefineSymbolsForGroup(target, defines);
+#endif
+    }
+}
+
+    static bool IsObsolete(BuildTargetGroup group)
+    {
+        var attrs = typeof(BuildTargetGroup)
+            .GetField(group.ToString())
+            .GetCustomAttributes(typeof(ObsoleteAttribute), false);
+
+        return attrs != null && attrs.Length > 0;
+    } 
+}