1 files changed, 40 insertions, 0 deletions
diff --git a/Thronefall/Ara/ColorFromSpeed.cs b/Thronefall/Ara/ColorFromSpeed.cs
new file mode 100644
index 0000000..a73fb92
--- /dev/null
+++ b/Thronefall/Ara/ColorFromSpeed.cs
@@ -0,0 +1,40 @@
+using UnityEngine;
+
+namespace Ara;
+
+[RequireComponent(typeof(AraTrail))]
+public class ColorFromSpeed : MonoBehaviour
+{
+	private AraTrail trail;
+
+	[Tooltip("Maps trail speed to color. Control how much speed is transferred to the trail by setting inertia > 0. The trail will be colorized even if physics are disabled. ")]
+	public Gradient colorFromSpeed = new Gradient();
+
+	[Tooltip("Min speed used to map speed to color.")]
+	public float minSpeed;
+
+	[Tooltip("Max speed used to map speed to color.")]
+	public float maxSpeed = 5f;
+
+	private void OnEnable()
+	{
+		trail = GetComponent<AraTrail>();
+		trail.onUpdatePoints += SetColorFromSpeed;
+	}
+
+	private void OnDisable()
+	{
+		trail.onUpdatePoints -= SetColorFromSpeed;
+	}
+
+	private void SetColorFromSpeed()
+	{
+		float num = Mathf.Max(1E-05f, maxSpeed - minSpeed);
+		for (int i = 0; i < trail.points.Count; i++)
+		{
+			AraTrail.Point value = trail.points[i];
+			value.color = colorFromSpeed.Evaluate((value.velocity.magnitude - minSpeed) / num);
+			trail.points[i] = value;
+		}
+	}
+}