Code structure cleanup.

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

@@ -0,0 +1,98 @@
+using Cryville.Common.Pdt;
+using UnityEngine;
+
+namespace Cryville.Crtr.Skin.Components {
+	public abstract class SpriteBase : MeshBase {
+		public SpriteBase() {
+			SubmitProperty("bound", new op_set_bound(this));
+			SubmitProperty("pivot", new PropOp.Vector2(v => Pivot = v));
+			SubmitProperty("scale", new PropOp.Vector2(v => Scale = v));
+			SubmitProperty("ui", new PropOp.Boolean(v => UI = v));
+		}
+
+#pragma warning disable IDE1006
+		class op_set_bound : PdtOperator {
+			readonly SpriteBase _self;
+			public op_set_bound(SpriteBase self) : base(2) {
+				_self = self;
+			}
+			protected override void Execute() {
+				_self.SetBound(
+					GetOperand(0).As<Vector2>(),
+					GetOperand(1).As<Vector3>()
+				);
+			}
+		}
+#pragma warning restore IDE1006
+
+		Vector2 _scale = Vector2.one;
+		public Vector2 Scale {
+			get { return _scale; }
+			set {
+				_scale = value;
+				UpdateScale();
+			}
+		}
+		protected virtual void UpdateScale() {
+			if (!mesh.Initialized) return;
+			var s = BaseScale;
+			var ss = new Vector3(_scale.x, 1, _scale.y);
+			s.Scale(ss);
+			mesh.MeshTransform.localScale = s;
+			OnPivotUpdate();
+		}
+		protected abstract Vector3 BaseScale {
+			get;
+		}
+		protected virtual Vector3 BaseSize {
+			get { return Vector3.one; }
+		}
+		
+		Vector2 _pivot;
+		public Vector2 Pivot {
+			get { return _pivot; }
+			set {
+				_pivot = value;
+				OnPivotUpdate();
+			}
+		}
+		protected void OnPivotUpdate() {
+			if (!mesh.Initialized) return;
+			var r = new Vector3(_pivot.x - BasePivot.x, 0, _pivot.y - BasePivot.y);
+			r.Scale(mesh.MeshTransform.localScale);
+			r.Scale(BaseSize);
+			mesh.MeshTransform.localPosition = -r;
+		}
+		protected virtual Vector2 BasePivot {
+			get { return Vector2.zero; }
+		}
+
+		public void SetBound(Vector2 piv, Vector3 pos) {
+			var r = Quaternion.Inverse(transform.rotation);
+			var da = piv - Pivot;
+			var dp = r * (pos - transform.localPosition);
+			if (da.x != 0) _scale.x = dp.x / da.x;
+			if (da.y != 0) _scale.y = dp.z / da.y;
+		}
+
+		static readonly Quaternion uirot
+			= Quaternion.Euler(new Vector3(-90, 0, 0));
+		bool _ui;
+		public bool UI {
+			get { return _ui; }
+			set {
+				_ui = value;
+				if (_ui) transform.localRotation = uirot;
+			}
+		}
+
+		protected void InternalInit(string meshName = "quad") {
+			mesh.Init(transform);
+			mesh.Renderer.sharedMaterials = materials = new Material[] { MeshWrapper.NewMaterial() };
+			mesh.Mesh = Mesh.Instantiate(BuiltinResources.Meshes[meshName]);
+			UpdateColor();
+			UpdateScale();
+			UpdateZIndex();
+		}
+	}
+}