提交Spine插件

Assets/Spine/Runtime/spine-unity/Modules/Ghost/SkeletonGhostRenderer.cs

@@ -0,0 +1,128 @@
+/******************************************************************************
+ * 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
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+// Contributed by: Mitch Thompson
+
+using UnityEngine;
+using System.Collections;
+
+namespace Spine.Unity.Modules {
+	public class SkeletonGhostRenderer : MonoBehaviour {
+		static readonly Color32 TransparentBlack = new Color32(0, 0, 0, 0);
+		const string colorPropertyName = "_Color";
+
+		float fadeSpeed = 10;
+		Color32 startColor;
+		MeshFilter meshFilter;
+		MeshRenderer meshRenderer;
+
+		MaterialPropertyBlock mpb;
+		int colorId;
+
+		void Awake () {
+			meshRenderer = gameObject.AddComponent<MeshRenderer>();
+			meshFilter = gameObject.AddComponent<MeshFilter>();
+
+			colorId = Shader.PropertyToID(colorPropertyName);
+			mpb = new MaterialPropertyBlock();
+		}
+
+		public void Initialize (Mesh mesh, Material[] materials, Color32 color, bool additive, float speed, int sortingLayerID, int sortingOrder) {
+			StopAllCoroutines();
+
+			gameObject.SetActive(true);
+			meshRenderer.sharedMaterials = materials;
+			meshRenderer.sortingLayerID = sortingLayerID;
+			meshRenderer.sortingOrder = sortingOrder;
+			meshFilter.sharedMesh = Instantiate(mesh);
+			startColor = color;
+			mpb.SetColor(colorId, color);
+			meshRenderer.SetPropertyBlock(mpb);
+
+			fadeSpeed = speed;
+
+			if (additive)
+				StartCoroutine(FadeAdditive());
+			else
+				StartCoroutine(Fade());
+		}
+
+		IEnumerator Fade () {
+			Color32 c = startColor;
+			Color32 black = SkeletonGhostRenderer.TransparentBlack;
+
+			float t = 1f;
+			for (float hardTimeLimit = 5f; hardTimeLimit > 0; hardTimeLimit -= Time.deltaTime) {
+				c = Color32.Lerp(black, startColor, t);
+				mpb.SetColor(colorId, c);
+				meshRenderer.SetPropertyBlock(mpb);
+
+				t = Mathf.Lerp(t, 0, Time.deltaTime * fadeSpeed);
+				if (t <= 0)
+					break;
+				
+				yield return null;
+			}
+
+			Destroy(meshFilter.sharedMesh);
+			gameObject.SetActive(false);
+		}
+
+		IEnumerator FadeAdditive () {
+			Color32 c = startColor;
+			Color32 black = SkeletonGhostRenderer.TransparentBlack;
+
+			float t = 1f;
+			
+			for (float hardTimeLimit = 5f; hardTimeLimit > 0; hardTimeLimit -= Time.deltaTime) {
+				c = Color32.Lerp(black, startColor, t);
+				mpb.SetColor(colorId, c);
+				meshRenderer.SetPropertyBlock(mpb);
+
+				t = Mathf.Lerp(t, 0, Time.deltaTime * fadeSpeed);
+				if (t <= 0)
+					break;
+
+				yield return null;
+			}
+
+			Destroy(meshFilter.sharedMesh);
+
+			gameObject.SetActive(false);
+		}
+
+		public void Cleanup () {
+			if (meshFilter != null && meshFilter.sharedMesh != null)
+				Destroy(meshFilter.sharedMesh);
+
+			Destroy(gameObject);
+		}
+	}
+
+}