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Assets/Spine Examples/Scripts/Sample Components/SlotTintBlackFollower.cs

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+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated May 1, 2019. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2019, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS
+ * INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY
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+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using UnityEngine;
+using Spine.Unity;
+
+namespace Spine.Unity.Examples {
+
+	/// <summary>
+	/// Add this component to a Spine GameObject to apply a specific slot's Colors as MaterialProperties.
+	/// This allows you to apply the two color tint to the whole skeleton and not require the overhead of an extra vertex stream on the mesh.
+	/// </summary>
+	public class SlotTintBlackFollower : MonoBehaviour {
+		#region Inspector
+		/// <summary>
+		/// Serialized name of the slot loaded at runtime. Change the slot field instead of this if you want to change the followed slot at runtime.</summary>
+		[SpineSlot]
+		[SerializeField]
+		protected string slotName;
+
+		[SerializeField]
+		protected string colorPropertyName = "_Color";
+		[SerializeField]
+		protected string blackPropertyName = "_Black";
+		#endregion
+
+		public Slot slot;
+		MeshRenderer mr;
+		MaterialPropertyBlock mb;
+		int colorPropertyId, blackPropertyId;
+
+		void Start () {
+			Initialize(false);
+		}
+
+		public void Initialize (bool overwrite) {
+			if (overwrite || mb == null) {
+				mb = new MaterialPropertyBlock();
+				mr = GetComponent<MeshRenderer>();
+				slot = GetComponent<ISkeletonComponent>().Skeleton.FindSlot(slotName);
+
+				colorPropertyId = Shader.PropertyToID(colorPropertyName);
+				blackPropertyId = Shader.PropertyToID(blackPropertyName);
+			}
+		}
+
+		public void Update () {
+			Slot s = slot;
+			if (s == null) return;
+
+			mb.SetColor(colorPropertyId, s.GetColor());
+			mb.SetColor(blackPropertyId, s.GetColorTintBlack());
+
+			mr.SetPropertyBlock(mb);
+		}
+
+		void OnDisable () {
+			mb.Clear();
+			mr.SetPropertyBlock(mb);
+		}
+	}
+}