Add platformer locomotion slice

tests/SideScrollerGame.Sim.Tests/SimulationStateTests.cs

@@ -1,5 +1,6 @@
 using System.Collections.Immutable;
 using SideScrollerGame.Sim.Input;
+using SideScrollerGame.Sim.Math;
 using SideScrollerGame.Sim.Runtime;
 
 namespace SideScrollerGame.Sim.Tests;
@@ -9,25 +10,31 @@ public sealed class SimulationStateTests
     [Fact]
     public void PlayerState_CloneAndButtonReleasePreserveIndependentState()
     {
-        PlayerState player = new(new(1), new(3, 4), 1, 2, 5, 6, 7, 0, 9);
+        PlayerState player = new(new(1), new(3, 4), 1, 2, 5, 6, 7, 0, 9, FixPoint16.One, true, 3, 4);
         player.SetButton(InputButton.Dash, true);
         player.ApplyDamage(4);
+        player.BufferJump(6);
 
         var clone = player.Clone();
         player.SetButton(InputButton.Dash, false);
         player.SetPosition(new(8, 9));
+        player.SetVerticalVelocity(new(5));
 
         Assert.NotEqual(player.ButtonMask, clone.ButtonMask);
         Assert.Equal(7, clone.SelectedWeaponSlot);
         Assert.Equal(3, clone.Position.m_X.ToIntRound());
         Assert.Equal(4, clone.Position.m_Y.ToIntRound());
         Assert.Equal(5, clone.Health);
+        Assert.Equal(1, clone.VerticalVelocity.ToIntRound());
+        Assert.True(clone.IsGrounded);
+        Assert.Equal(3, clone.LastGroundedTick);
+        Assert.Equal(6, clone.BufferedJumpTick);
     }
 
     [Fact]
     public void SimulationState_CloneCreatesDeepCopy()
     {
-        SimulationState original = new(4, 9, 123UL, 456UL, ImmutableArray.Create(new PlayerState(new(1), new(1, 2), 3, 4, 5, 6, 7, 8, 9)), ImmutableHashSet<string>.Empty.Add("checkpoint_a"));
+        SimulationState original = new(4, 9, 123UL, 456UL, ImmutableArray.Create(new PlayerState(new(1), new(1, 2), 3, 4, 5, 6, 7, 8, 9, new(2), true, 4, -1)), ImmutableHashSet<string>.Empty.Add("checkpoint_a"));
         var clone = original.Clone();
 
         original.GetRequiredPlayer(new(1)).SetMoveAxis(9, 9);
@@ -38,6 +45,7 @@ public sealed class SimulationStateTests
         Assert.Equal((ulong)123, clone.RandomState);
         Assert.Equal((ulong)456, clone.LastRandomValue);
         Assert.Equal(3, clone.GetRequiredPlayer(new(1)).MoveAxisX);
+        Assert.Equal(2, clone.GetRequiredPlayer(new(1)).VerticalVelocity.ToIntRound());
         Assert.DoesNotContain("checkpoint_b", clone.ActivatedTriggerIds);
     }
 
@@ -66,4 +74,18 @@ public sealed class SimulationStateTests
         Assert.True(state.ActivateTrigger("checkpoint_a"));
         Assert.False(state.ActivateTrigger("checkpoint_a"));
     }
+
+    [Fact]
+    public void PlayerState_BufferedJumpExpiresOutsideWindow()
+    {
+        PlayerState player = new(new(1), new(0, 0), 0, 0, 0, 0, 0, 0, 10, FixPoint16.Zero, false, -1, -1);
+        player.BufferJump(3);
+
+        Assert.True(player.HasBufferedJump(4, 1));
+        Assert.False(player.HasBufferedJump(5, 1));
+
+        player.ConsumeBufferedJump();
+
+        Assert.False(player.HasBufferedJump(5, 5));
+    }
 }