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Assets/Code/Infrastructure/Generators/StateMachineGenerator.cs

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+#if UNITY_EDITOR
+using System.Linq;
+using Unity.VisualScripting;
+using UnityCodeGen;
+using UnityEditor;
+
+namespace Code.Infrastructure.Generators
+{
+    [Generator]
+    public class StateMachineGenerator : ICodeGenerator
+    {
+        public void Execute(GeneratorContext context)
+        {
+            GenerateStates(context);
+            
+            GenerateStateMachine(context);
+        }
+
+        private void GenerateStateMachine(GeneratorContext context)
+        {
+            var stateMachines = TypeCache.GetTypesWithAttribute<StateMachine>();
+
+            foreach (var sm in stateMachines)
+            {
+                var attribute = sm.GetAttribute<StateMachine>();
+
+                var states = TypeCache.GetTypesWithAttribute<State>()
+                    .Where(st =>
+                        st.GetAttribute<State>().StateMachineContext.FullName ==
+                        attribute.StateMachineContextType.FullName);
+
+                var statesCode = "";
+                var statesNamespacesCode = "";
+
+                foreach (var st in states)
+                {
+                    statesNamespacesCode += $@" 
+using {st.Namespace};
+";
+                    statesCode += $@"
+var state{st.Name} = new {st.Name}(StateMachineContext,eventBus);
+States.Add(state{st.Name}.myState, state{st.Name});
+";
+                }
+
+                var stateMachineCode =
+                    $@"
+// <auto-generated/>
+#pragma warning disable CS0105 
+using Code.Infrastructure.StateMachine;
+{statesNamespacesCode}
+#pragma warning restore CS0105
+namespace {sm.Namespace}
+{{
+
+public partial class {sm.Name} : AbstractStateMachine<{attribute.StateMachineEnumType.FullName},{attribute.StateMachineContextType.FullName}>
+{{
+      
+        public {sm.Name}({attribute.StateMachineContextType.FullName} context, EventBus.EventBus eventBus) : base(context)
+        {{ 
+            {statesCode}
+        }}
+
+        protected override bool CheckTransitionAllowed({attribute.StateMachineEnumType.FullName} nextState) => AllowedStates.HasFlag(nextState);
+        protected override void ResetAllowedTransitions() => AllowedStates = 0; 
+}}
+
+    public static class {sm.Name}Extensions
+    {{
+        public static AbstractStateMachine<{attribute.StateMachineEnumType.FullName}, {attribute.StateMachineContextType.FullName}> AllowStateTransition(
+            this AbstractStateMachine<{attribute.StateMachineEnumType.FullName}, {attribute.StateMachineContextType.FullName}> stateMachine, {attribute.StateMachineEnumType.FullName} state)
+        {{
+            if (stateMachine == null) return null;
+
+            stateMachine.AllowedStates |= state;
+            return stateMachine;
+        }}
+    }}
+}}
+
+";
+
+                context.AddCode($"{sm.FullName}.Generated.cs", stateMachineCode);
+            }
+        }
+
+        private void GenerateStates(GeneratorContext context)
+        { 
+            var states = TypeCache.GetTypesWithAttribute<State>();
+
+            var statesCode = "";
+            foreach (var st in states)
+            {
+                var attribute = st.GetAttribute<State>();
+
+            var fireStatesCode = "";
+                if(st.HasAttribute<StateRaisingEvent>()) fireStatesCode = $@"        
+protected override void _fireEnterState()
+        {{
+            EventBus.RaiseEvent<IEnterStateHandle<{st.FullName}>>(h => h.EnterState());
+        }}
+
+        protected override void _fireExitState()
+        {{
+            EventBus.RaiseEvent<IExitStateHandle<{st.FullName}>>(h => h.ExitState());
+        }}
+";
+                var genetics = "";
+                if(!attribute.SilentBitch) genetics = $@" : BaseState<{attribute.StateEnum.FullName}, {attribute.StateMachineContext.FullName}>";
+                
+                statesCode = $@"
+
+// retard-generated
+
+using Code.Infrastructure.StateMachine;
+
+namespace {st.Namespace}
+{{
+    public partial class {st.Name} {genetics}
+    {{
+        {fireStatesCode}
+    }}  
+}}
+";
+
+
+                context.AddCode($"{st.FullName}.Generated.cs", statesCode);
+                
+            }
+        }
+    }
+}
+#endif