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Assets/Spine Examples/Scripts/HurtFlashEffect.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
+ * 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.
+ *****************************************************************************/
+
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class HurtFlashEffect : MonoBehaviour {
+
+	const int DefaultFlashCount = 3;
+
+	public int flashCount = DefaultFlashCount;
+	public Color flashColor = Color.white;
+	[Range(1f/120f, 1f/15f)]
+	public float interval = 1f/60f;
+	public string fillPhaseProperty = "_FillPhase";
+	public string fillColorProperty = "_FillColor";
+
+	MaterialPropertyBlock mpb;
+	MeshRenderer meshRenderer;
+
+	public void Flash () {
+		if (mpb == null) mpb = new MaterialPropertyBlock();
+		if (meshRenderer == null) meshRenderer = GetComponent<MeshRenderer>();
+		meshRenderer.GetPropertyBlock(mpb);
+		
+		StartCoroutine(FlashRoutine());
+	}
+
+	IEnumerator FlashRoutine () {
+		if (flashCount < 0) flashCount = DefaultFlashCount;
+		int fillPhase = Shader.PropertyToID(fillPhaseProperty);
+		int fillColor = Shader.PropertyToID(fillColorProperty);
+
+		var wait = new WaitForSeconds(interval);
+
+		for (int i = 0; i < flashCount; i++) {
+			mpb.SetColor(fillColor, flashColor);
+			mpb.SetFloat(fillPhase, 1f);
+			meshRenderer.SetPropertyBlock(mpb);
+			yield return wait;
+
+			mpb.SetFloat(fillPhase, 0f);
+			meshRenderer.SetPropertyBlock(mpb);
+			yield return wait;
+		}
+
+		yield return null;
+	}
+
+}