Add UEContext to carry context built from Unreal Engine needed for bl…

…ueprint generation

KismetGenerator.cs

@@ -266,11 +266,14 @@ public override int GetHashCode() {
         }
     }
 
+    UEContext Context;
+
     UAsset Asset;
     TextWriter Output;
     Dictionary<Address, KismetExpression> ExpressionMap;
 
-    public BlueprintGenerator(UAsset asset) {
+    public BlueprintGenerator(UEContext context, UAsset asset) {
+        Context = context;
         Asset = asset;
         Output = Console.Out;
         ExpressionMap = new Dictionary<Address, KismetExpression>();

Program.cs

@@ -55,7 +55,9 @@ class MergeFunctionsOptions {
 
     [Verb("generate", HelpText = "Generate blueprint asset")]
     class GenerateOptions {
-        [Value(0, Required = true, MetaName = "source", HelpText = "Path of the source asset")]
+        [Value(0, Required = true, MetaName = "context", HelpText = "Path to context JSON object generated by BPGen plugin (kismet.json in UE project directory)")]
+        public string ContextPath { get; set; }
+        [Value(1, Required = true, MetaName = "source", HelpText = "Path of the source asset")]
         public string SourcePath { get; set; }
         //[Value(1, Required = true, MetaName = "dest", HelpText = "Path of the dest asset")]
         //public string DestPath { get; set; }
@@ -213,8 +215,10 @@ static int MergeFunctions(MergeFunctionsOptions opts) {
         return 0;
     }
     static int Generate(GenerateOptions opts) {
+        var context = UEContext.FromFile(opts.ContextPath);
+
         UAsset source = new UAsset(opts.SourcePath, UE4Version.VER_UE4_27);
-        var generator = new BlueprintGenerator(source);
+        var generator = new BlueprintGenerator(context, source);
         generator.Generate();
         return 0;
     }

UEContext.cs

@@ -0,0 +1,42 @@
+namespace KismetAnalyzer;
+
+using Newtonsoft.Json;
+
+public class UEContext {
+    [JsonProperty("classes")]
+    public Dictionary<string, UEClass> Classes { get; init; }
+
+    public static UEContext FromFile(string path) {
+        using (StreamReader r = new StreamReader(path)) {
+            return JsonConvert.DeserializeObject<UEContext>(r.ReadToEnd());
+        }
+    }
+}
+
+public class UEClass {
+    [JsonProperty("functions")]
+    public Dictionary<string, UEFunction> Functions { get; init; }
+}
+
+public class UEFunction {
+    [JsonProperty("pure")]
+    public bool Pure;
+    [JsonProperty("pins")]
+    public IEnumerable<UEPin> Pins { get; init; }
+}
+
+public class UEPin {
+    [JsonProperty("name")]
+    public string Name;
+    [JsonProperty("isRef")]
+    public bool IsRef;
+    [JsonProperty("direction")]
+    public UEPinDirection Direction;
+}
+
+public enum UEPinDirection {
+    [JsonProperty("input")]
+    Input,
+    [JsonProperty("output")]
+    Output,
+}