Code structure cleanup.

Assets/Cryville/Crtr/Skin/Components/SectionalGameObject.cs

@@ -0,0 +1,50 @@
+using UnityEngine;
+
+namespace Cryville.Crtr.Skin.Components {
+	public abstract class SectionalGameObject : MeshBase {
+		protected Vector3? prevpt;
+		protected Quaternion? prevrot;
+		protected int vertCount = 0;
+		Part part = Part.whole;
+		enum Part {
+			whole = 0,
+			idle = 1,
+			start = 2,
+			end = 3,
+		}
+
+		public SectionalGameObject() {
+			SubmitProperty("partial", new PropOp.Boolean(v => part = Part.idle));
+			SubmitProperty("part", new PropOp.Enum<Part>(v => part = v, v => (Part)v), 2);
+		}
+
+		public override void Init() {
+			UpdateZIndex();
+			UpdateColor();
+			Reset();
+		}
+		
+		public void AppendPoint(Vector3 p) {
+			AppendPoint(p, Quaternion.identity);
+		}
+
+		public void AppendPoint(Vector3 p, Quaternion r) {
+			if (prevpt == p && prevrot == r || ((int)part & 1) == 1) return;
+			AppendPointInternal(p, r);
+			// if (!headGenerated) Logger.Log("main", 0, "Skin/Polysec", "{0}", r);
+			prevpt = p;
+			prevrot = r;
+			vertCount++;
+		}
+
+		protected abstract void AppendPointInternal(Vector3 wp, Quaternion r);
+
+		public abstract void Seal();
+
+		public virtual void Reset() {
+			vertCount = 0;
+			prevpt = null;
+			prevrot = null;
+		}
+	}
+}