Feature: AI can be used in online multiplayer

changelog.txt

@@ -1,3 +1,8 @@
+Rend 0.11.0 changelog:
+
+Gameplay:
+* AI can be used in online multiplayer
+
 Rend 0.10.0 changelog:
 
 Gameplay:

src/lib-app/src/app/AppStateIngame.cpp

@@ -311,7 +311,23 @@ void AppStateIngame::simulateFrameFromState(
     const FrameState& state, bool skipAudio)
 {
     restoreState(state);
-    gameLoop->update(FRAME_TIME, app.time.getDeltaTime(), skipAudio);
+    gameLoop->update(
+        FRAME_TIME,
+        app.time.getDeltaTime(),
+        skipAudio,
+        [&]
+        {
+            // This gets executed after aiEngine.update
+            // propagate AI inputs to playerStates::input
+            // so NPCs do their thing
+            for (auto&& i : std::views::iota(firstNpcIdx, state.inputs.size()))
+            {
+                scene.playerStates[i].input.deserializeFrom(
+                    scene.playerStates[i]
+                        .blackboard.value()
+                        .input->getSnapshot());
+            }
+        });
     ++scene.tick;
 }
 
@@ -327,11 +343,6 @@ void AppStateIngame::restoreState(const FrameState& state)
         scene.playerStates[i].input.deserializeFrom(state.inputs[i]);
     }
 
-    for (auto&& i : std::views::iota(firstNpcIdx, state.inputs.size()))
-    {
-        scene.playerStates[i].input.deserializeFrom(inputs[i]->getSnapshot());
-    }
-
     scene.camera.anchorIdx = state.cameraAnchorIdx;
 
     // rebuild spatial index

src/lib-game/include/GameLoop.hpp

@@ -52,7 +52,18 @@ class [[nodiscard]] GameLoop final
     }
 
 public:
-    void update(const float dt, const float realDt, bool skipAudio);
+    void update(
+        const float dt,
+        const float realDt,
+        bool skipAudio,
+        auto&& afterAiEngineUpdateCallback)
+    {
+        aiEngine.update(dt);
+        afterAiEngineUpdateCallback();
+        updateEngines(dt, realDt);
+        processEvents(skipAudio);
+        gameRulesEngine.deleteMarkedObjects();
+    }
 
     void renderTo(dgm::Window& window);
 

src/lib-game/src/GameLoop.cpp

@@ -1,13 +1,5 @@
 #include "GameLoop.hpp"
 
-void GameLoop::update(const float dt, const float realDt, bool skipAudio)
-{
-    updateEngines(dt, realDt);
-    processEvents(skipAudio);
-    gameRulesEngine.deleteMarkedObjects();
-    aiEngine.update(dt); // must happen after everything else
-}
-
 void GameLoop::renderTo(dgm::Window& window)
 {
     renderingEngine.renderTo(window);