From f31f01d32163eb496eacca959dc858a04a34bf94 Mon Sep 17 00:00:00 2001
From: meelstorm <meelstorm@gmail.com>
Date: Fri, 17 Jul 2026 16:42:26 +0000
Subject: [PATCH] feat(gamecli): add ShipState record struct

---
 GameCli/Ship.cs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 GameCli/Ship.cs

diff --git a/GameCli/Ship.cs b/GameCli/Ship.cs
new file mode 100644
index 0000000..690574a
--- /dev/null
+++ b/GameCli/Ship.cs
@@ -0,0 +1,18 @@
+namespace GameCli;
+
+/// <summary>
+/// Immutable ship pose + velocity in world coordinates.
+/// World is [0,1] × [0,1]. Y increases downward (screen-native).
+/// Angle=0 means "ship pointing up" (main engine points down).
+/// Positive angle rotates clockwise.
+/// </summary>
+public readonly record struct ShipState(
+    float X,
+    float Y,
+    float VX,
+    float VY,
+    float Angle,
+    float AngularVelocity)
+{
+    public static ShipState AtCenter() => new(0.5f, 0.5f, 0f, 0f, 0f, 0f);
+}