From 8167ab990bffea6c96d9215cd1f76e8600bd1e7a Mon Sep 17 00:00:00 2001
From: spatialfree <mail@ethanmerchant.com>
Date: Fri, 8 Nov 2024 23:20:38 -0500
Subject: [PATCH] headmove tail move deltabools

---
 src/Arts.cs    | 17 ++++++++++++++++-
 src/Program.cs |  1 +
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/Arts.cs b/src/Arts.cs
index bc06113..30f6eb6 100644
--- a/src/Arts.cs
+++ b/src/Arts.cs
@@ -13,6 +13,11 @@ static class Arts
 
     static Quat food_ori = Quat.Identity;
 
+    static XYZi last_headpos = new(0, 0, 0);
+    static DeltaBool headmove = new(false);
+    static XYZi last_tailpos = new(0, 0, 0);
+    static DeltaBool tailmove = new(false);
+
     public static void Init()
     {
         foreach (ModelNode node in assets_model.Nodes)
@@ -76,7 +81,7 @@ static class Arts
         }
 
         // snake
-        float snake_t = Maths.smooth_stop((float)Mono.step_t);
+        float snake_t = headmove.state ? Maths.u_clamp(Maths.smooth_stop((float)Mono.step_t) * 3.0f) : 1.0f;
         bool food_next = (Mono.snake[0] + Mono.snake_dir) == Mono.food;
         if (!food_next)
         {
@@ -181,4 +186,14 @@ static class Arts
         //     }
         // }
     }
+
+    public static void Step()
+    {
+        XYZi snake_head = Mono.snake[0];
+        XYZi snake_tail = Mono.snake[Mono.snake_len -1];
+        headmove.Step(snake_head != last_headpos);
+        tailmove.Step(snake_tail != last_tailpos);
+        last_headpos = snake_head;
+        last_tailpos = snake_tail;
+    }
 }
\ No newline at end of file
diff --git a/src/Program.cs b/src/Program.cs
index 1319b2c..a6a1f41 100644
--- a/src/Program.cs
+++ b/src/Program.cs
@@ -52,6 +52,7 @@ class Program
                 Mono.step_time -= Mono.step_step;
 
                 Mono.Step();
+                Arts.Step();
             }
 
             Arts.Frame();