Implement deterministic simulation spine

tests/SideScrollerGame.Sim.Tests/SimulationTestFactory.cs

@@ -0,0 +1,24 @@
+using System.Collections.Immutable;
+using SideScrollerGame.Sim.Definitions;
+using SideScrollerGame.Sim.Input;
+using SideScrollerGame.Sim.Verification;
+
+namespace SideScrollerGame.Sim.Tests;
+
+internal static class SimulationTestFactory
+{
+    public static GameDefinition CreateGameDefinition()
+    {
+        return new(ImmutableArray.Create(new PlayerDefinition(new(1), new(10, 20))));
+    }
+
+    public static SimulationConfig CreateConfig(VerificationMode verificationMode = VerificationMode.None)
+    {
+        return new(SimulationDefaults.DefaultTicksPerSecond, verificationMode);
+    }
+
+    public static TickActionBatch CreateTick(int tick, params SimulationAction[] actions)
+    {
+        return new(tick, ImmutableArray.Create(actions));
+    }
+}